Page 2 IMPORTANT THIS DOCUMENTATION IS PUBLISHED BY CANON INC., JAPAN, TO SERVE AS A SOURCE OF REFERENCE FOR WORK IN THE FIELD. SPECIFICATIONS AND OTHER INFORMATION CONTAINED HEREIN MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN ADVERTISING AND OTHER PRINTED MATTER.
Page 3 Chapter 10 Maintenance and Servicing provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 4 All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant Service Information bulletins and be able to identify and isolate faults in the machine. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 5: System Configuration
Control Card V It allows control of NP6350/NP6251 copy volume. (front paper deck + cassette type) Sorter G1 It can automatically sort and group copies. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 7: Table Of Contents
A. Scanner Drive Assembly ....3-24 3. Basic Sequence of Operations..3-8 1. Removing the Scanner Drive 4. Movement of the Scanner in Motor ........3-24 Page Separation Mode ....3-9 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 8 Reduce Mode ......4-19 D. Detecting the Waste Toner Feeding 3. Controlling the Activation in Screw (locking) ......4-38 Direct Mode ......4-19 III. DISASSEMBLY AND ASSEMBLY..4-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 9 Rail ...........5-10 MULTIFEEDER........5-20 4. Paper Size........5-11 A. Pick-Up Operation ......5-20 5. Registering Paper Width Basic B. Identifying the Size of Paper in Value.........5-12 the Multifeeder.......5-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 10 C. Right Deck Pick-Up Assembly 2 through 4 Stationary Jam ..5-51 (cassette holder)......5-80 7. Fixing Assembly Outlet Delay 1. Removing the Pick-Up Jam...........5-52 Assembly from the Copier..5-80 viii COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 11 OUTLINE OF OPERATIONS....6-1 C. Controlling the Fixing Temperature ..6-5 A. Outline ...........6-1 D. Reciprocating Mechanism for B. Fixing Drive Assembly....6-3 the Main Thermistor (TH1) ....6-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 12 4. Removing the Rear Cover..7-17 2. Removing the Exhaust Fan..7-30 5. Sliding Out the Hopper 3. Removing the Fixing Heat Assembly ........7-18 Exhaust Fan ......7-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 13 1. Opening/Closing the Deck ..8-11 3. Changing the Deck Paper 2. Sequence of Operations (deck Size ..........8-32 opening/closing) .......8-12 4. Adjusting the Deck Registration ..8-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 14 SCHEDULED SERVICING TABLE ..10-4 PARTS ..........10-1 SCHEDULED SERVICING CHART .10-6 CONSUMABLES AND DURABLES.10-2 A. Copier..........10-6 A. Copier ..........10-2 B. Paper Deck-A1 ......10-8 B. Paper Deck-A1 ......10-3 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 15 Blanking Exposure Lamp ..11-20 14.Adjusting the Position of the 4. Position of the Roller Holding Tray Assembly Side Electrode ........11-21 Guide Plate ......11-34 xiii COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 16 ......11-70 20.E210 (fault in lens X direction 3. The copy is too light drive system) ......11-96 (entire face)......11-70 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 17 ) ....11-162 56.The deck lifter fails to move E. I/O Display Mode ( ) ..11-179 up. (paper deck-A1) ....11-118 F. Adjustment Mode ( ) ..11-215 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 18 B. SIGNALS AND ABBREVIATIONS ...A-3 CIRCUIT DIAGRAM ......A-7 1. Signals........A-3 E. SPECIAL TOOLS LIST ....A-9 2. Abbreviations......A-4 F. SOLVENTS AND OILS....A-10 C. GENERAL CIRCUIT DIAGRAM..A-5 not available COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON)
Page 19 A. External View.........1-10 VI. POINTS TO NOTE (BY THE USER) ..1-19 B. Cross Section ........1-12 VII. IMAGE FORMATION......1-20 OPERATING THE MACHINE.....1-13 A. Outline ...........1-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 20: Chapter 1 General Description
4. It comes with a large-size liquid crystal display for ease of viewing. 5. When fitted with a side paper deck (accessory), it will hold as many as 7,550 sheets (5,550 sheets if NP6250). COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 21: Specifications
Multifeeder (5.5 mm deep, 50 sheets of 80 g/m Transfer Corona Separation Corona (static) Cleaning Blade Fixing Heating roller (790 W + 410 W; 120V), (1200W; 220/240V) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 22: Performance
431 mm (11" 17", max.) STMT (min.) Two-sided A: A3 (max.), A5 horizontal (min.) Inch: 279.4 431.8 mm (11" 17", max.), STMT horizontal (min.) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 23 A3, B4, A4, B5, A4R, B5R, 11" 17", LGL, LTR, LTR-R, Multifeeder STMT-R, A5, STMT • Colored paper* (Canon-recommended) B4, A4 *May be used, but may not feed properly. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 24 1 and 2 hr in 1-hr increments) • Sorter-G1 • Control Card-V • Paper Deck-A1 • Copy Data Controller-A1 Accessory • Stapler Sorter-E2 • Remote Diagnostic Device II COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 25: Others
210 kg/ 462.8lb (approx.; w/ RDF) Copy paper Keep wrapped to protect against humidity. Consumables Toner Avoid direct sunshine; keep at 40°C, 85% or under. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 26 364mm) Direct B5(182 257mm) A4R(297 210mm) B5R(257 182mm) (50%) (70%) Reduce (81%) (86%) (200%) (141%) Enlarge (122%) (115%) Table 1-201 Copying Speed (copier only) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 27 LTRR 11" 17" 11" 17" Enlarge (129.4%) 11" 17" 11" 17" (121.4%) Table 1-202 Copying Speed (copier only) Specifications subject to change without notice. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 28: Paper Deck-A1
26.8 (H) in Weight 33.5 kg/73.8 lb Power supply DC from copier Operating environment Same as copier Temperature Humidity Specifications subject to change without notice. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 29: Names Of Parts
Cassette 4 Toner supply mouth Cassette 3 Original tray/Instructions tray Right deck Power switch Left deck Multifeeder Front door Upper right door Figure 1-301 1-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 30 Holding tray feeding assembly knob Fixing feeding assembly Holding tray feeding assembly Fixing/feeding assembly lever Holding tray assembly Toner hopper Holding tray knob Figure 1-302 1-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 31: Cross Section
No. 5 mirror Fixing roller Drum cleaning Multifeeder pick-up Holding tray pick-up assembly roller (crescent) roller Pre-exposure lamp Roller electrode Delivery roller Figure 1-303 1-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 32: Operating The Machine
Interrupt key Start key Figure 1-401 Ready to copy. REDUCE DIRECT ENLARGE PAPERSELECT FIT IMAGE ZOOM 2-SIDED SORTER SPECIAL FEATURES LIGHT DARK Figure 1-402 1-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 33: Extended Modes
Use it to select cover, back cover, or interleaf (20 sheets or less). Use it so that copying is possible only in response to a pre- registered ID (300 max.). Table 1-401 1-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 34: User Mode
ON: Show size input screen. OFF: Do not show size input screen. Table 1-402(a) 1-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 35 Reset key (or in auto clear). You Copy ratio, may select factory default as post-initialization 100%; auto mode. paper select, ON; density control, manual; copy count, 1. Table 1-402(b) 1-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 36 Time/Day Use it to set the time/day of the week for the built-in Used for the clock. weekly timer. Table 1-404 1-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 37 [4] Preferences Item Description Remarks User Customize Use it to assign specific modes to keys on the 2 max. Standard screen. Table 1-405 1-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 38: Routine Maintenance By The User
Instruct the user to dispose of any empty toner bottle as nonflammable material. Caution: Do NOT throw the cartridges into fire; it can burst or explode. 1-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 39: Image Formation
Fixing assembly assembly Roller electrode Pre-transfer charging assembly Pick-up (multifeeder) Separation claw Pick-up Transfer charging (cassette re-pick up) Separation assembly charging assembly Figure 1-601 1-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 40 4. Development Rotation of drum 9. Drum cleaning 5. Pre-transfer charging 6. Transfer Multifeeder Registration 8. Fixing 7. Separation Delivery Pick-up Figure 1-602 1-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 42: Basic Operation
B. Outline of the Electrical Circuitry ...2-2 G. Inputs to and Outputs from C. Basic Sequence of Operations..2-4 Accessories ........2-32 D. Main Motor (M1) Control Circuitry..2-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 43: Chapter 2 Basic Operation
Holding tray Holding tray inlet assembly Delivery control assembly Holding tray feeding assembly Cassette/paper deck Pick-up feeding assembly Figure 2-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 44: Outline Of The Electrical Circuitry
IC on its DC controller PCB and the communications IC (IPC) on the controller PCB of each accessory. (IPC communication 2). Figure 2-102 is a block diagram which shows the relationship between the machine’s major circuits. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 45 Side deck driver Sensors/ deck switches RDF controller PCB Sensors/ Micro- switches processor Sorter controller PCB Stapler Sensors/ Micro- sorter switches processor Figure 2-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 46: Basic Sequence Of Operations
(Cleaning is also executed every 2,000 copies.) *3 Wait-up state ends in 10 sec after the end of potential control to speed up warm-up time. Figure 2-103 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 47: Basic Sequence Of Operations At Power-On (2/2)
17°C or less for the value within parentheses; for the value outside parentheses, if the surface temperature of the fixing roller is 75°C or more. Figure 2-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 48 • If the Copy Start turned off. key is pressed (auto start) during a wait period, copying starts at the end of LSTR. Table 2-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 49: Basic Sequence Of Operations
Scanning lamp (LA1) Developing clutch (CL1) *1 Turns off the blanking exposure LEDs corresponding to the potential sensor for potential measurement (V Figure 2-105 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 50 Discharges the last LSTR From the end of drum of charges as post sheet. (last SCRV to when the treatment. rotation) main motor stops. Table 2-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 51: Basic Sequence Of Operations In Page Separation Mode
Transfer charging assembly Separation charging assembly Blanking exposure LED lamp Right deck/cassette pick-up clutch (CL14) Scanning lamp (LA1) Forward Reverse Scanner Figure 2-106 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 53: Main Motor (M1) Control Circuitry
Mixing generator Frequency Main comparison Rotor motor Frequency J111 comparison B4 M1ON MMCLK signal Q156 Master B3 M1FG 2 1/4 division Figure 2-107 2-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 54: Operation
PCB will detect a fault in the clock pulses from the main motor and, as a result, will indicate ‘E010’ and an error message on the control panel. 2-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 55: Inputs To The Dc Controller
Holding tray feeding When PS9 has detected paper, '1'. J113B-12 assembly 2 paper PS9D (When the light-blocking plate is at PS9.) sensor Figure 2-108 2-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 56 '1'. re-circulating (When the light-blocking plate PS19 HPLPD lever home is at PS19.) position sensor Holding tray control PCB Figure 2-109 2-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 57 When PS29 has detected paper, J815-1 J130A-8 Cassette 4 '1'. paper sensor PS29 C4PD (When the light-detecting plate is at PS29.) Figure 2-110 2-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 58 When the left deck has reached Left deck limiter the limiter, '1'. LDEL PS39 sensor (When the light-blocking plate is at PS39.) Figure 2-111 2-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 59 (When the light-blocking plate is sensor J108B-20 not at PS53.) +24V J103B-7 Potential POTON Sensor Potential See p. 4-4. measurement measurement sensor Figure 2-112 2-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 60 MSW4 ('E013' is indicated.) locked detection Multifeeder J7251-1 J304-4 HV24VU When 24 VU is supplied, '1'. door switch MSW5 detection Figure 2-113 2-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 61 '0'. level detection When the holding tray unit is J202-1 J113A-14 HTCNT* slid into the copier, '0'. Holding tray unit detection Figure 2-114 2-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 62 (analog signal) Environment THHUM1 sensor When the humidity inside the machine increases, the voltage HUM1 decreases. (analog signal) Figure 2-115 2-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 63: Outputs From The Dc Controller
See p. 6-5. Thermal switch Fixing heater (main) MHRD Fixing heater (sub) H2 (120V model only) J643-1 CHON (100V model only) Cassette heater Figure 2-116 2-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 64 M2ON J631-1 From power supply unit J632-11 J778-3 J112B-2 M3FT M3CL M3BRK Scanner motor M3ON M3F/R M3MD2 M3MD1 M3MD0 M3FG M3FS Figure 2-117 2-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 65 When '0', M6 rotates J2737-1 J108A-1 Transfer/separation TSCLM1 CW (forward). charging wire When '1', M6 rotates cleaning motor TSCLM2 CCW (reverse). Figure 2-118 2-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 66 M9_HLD When '1', M9 stops. motor While the motor is rotating, M9_B alternates between '1' and '0'. Holding tray control PCB Figure 2-119 2-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 67 When '1', M18 turns on. Right deck lifter motor J119B-9 J826-2 LDLMD When '1', M19 turns on. Left deck lifter motor Figure 2-120 2-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 68 At 12 V, half-speed oration; FM8D Scanner cooling at 24 V, full speed rotation. J781-2 J842-1 J201-1 Holding tray control From power supply unit Figure 2-121 2-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 69 RGCD* When '0', CL9 turns on. J806-1 J805-1 J117A-1 Cassette 3 pick-up CL10 clutch C3PUCD* When '0', CL10 turns on. Figure 2-122 2-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 70 When '0', CL16 turns on. Pick-up J787-1 J115A-3 vertical path CL18 roller 0 drive CL18D* When '0', CL18 turns On. clutch Figure 2-123 2-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 71 Multifeeder pick-up When '0', SL10 turns on for SL10 SL10FD* solenoid normal direction. SL10BD* When '0', SL10 turns on for reverse direction. Figure 2-124 2-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 72 SL16 SL16FD* When '0', SL16 turns on solenoid SL16BD for normal direction. When '1'1, SL16 turns on for reverse direction. Figure 2-125 2-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 73 J706-9 J708-4 J103A-9 LED2DT* LED2CK* See p. 4-19. LED2LD* Blanking LED2ON* exposure J312-1 Power supply for lamp To power supply unit Figure 2-126 2-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 74: Inputs To And Outputs From Accessories
24VA supply unit J726-3 J106B-3 CCNTD* When '0', CC-V turns on. Control card CC-V CCNNT* When '0', the card is detected. Figure 2-127 2-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV.0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 75 A. Moving of the Lens ......3-2 A. Scanner Drive Assembly ....3-24 III. SCANNER DRIVE SYSTEM ....3-6 B. Lens Drive Assembly.....3-32 A. Scanner Movement .......3-6 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 76: Chapter 3 Exposure System
2. The peripheral speed of the drum is the same as the speed of the movement of the mirror in Direct. Direct Reduce Enlarge Figure 3-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 77: Lens Drive System
Using the RDF Lens Original Coy paper (large) (large) Copy paper Original (small) (small) Figure 3-202 (top view) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 78: Moving Of The Lens
Lens (X) motor M4A* M4B* Micro- processor J736 J110A Y-HOLD Lens Y motor drive circuit M5A* Lens (Y) motor M5B* Figure 3-203 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 79: Moving The Lens
Lens X home position (PS6) Lens Y home position sensor (PS7) Motor CW/sensor ON Motor CCW Motor ON (direction depends on conditions) Figure 3-204 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 80 (M5) Signal plate Lens X motor (M4) Y direction Lens X home position sensor (PS6) Enlarge Reduce DC controller PCB Figure 3-205 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 81: Scanner Drive System
1 sensor (PS3) Scanner home position sensor (PS1) No. 1 mirror mount Forward No. 2/No. 3 mirror mount DC controller PCB Figure 3-301 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 82: Relationship Between The Scanner Sensors And The Signals
Scanner leading SCDP2 • Indicates that the scanner has edge 2 sensor reached stream reading (PS4) position. Table 3-301 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 83: Basic Sequence Of Operations
*1 Moves the lens according to the selected reproduction ratio and copy size. *2 The degree of braking may be adjusted in service mode (*3*). Figure 3-302 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 84: Movement Of The Scanner In Page Separation Mode
If the 1st and the 2nd pages are reversed using extended mode (Chapter 1), no change will occur except that the order of SCFW2/SCRV2 and SCFW1/SCRV1 is reversed. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 85 • RDF in use Size of original detected by feeder • Original frame Size of original specified by user erase mode Table 3-302 3-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 86: Outline
The use of stream reading enables omission of the scanner reverse period, thereby reducing the sheet-to-sheet distance and, ultimately, enabling a copying speed of 60 copies/minute (A4, LTR). 3-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 87 The 1st original is delivered from the The 2nd original is delivered from the left. left. Figure 3-305 3-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 88: Movement Of The Scanner With The Rdf In Use (A4, 2 Copies)
Immediately after stream reading, the original is stopped on the copyboard glass, and the remaining sets of copies are made in normal scanning mode (moving scanner). 3-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 90 11) The 1st original is delivered. reading has ended. The scanner returns illuminate the remaining number of originals. to home position. Figure 3-307 3-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 92: Scanner Motor (M3) Control Circuit
Scanner M3ON motor (M3) J112B J632 MSNCON Motor rotation SCMCLK M3MD2 speed M3MD1 control circuit M3MD0 J112B J632 M3FS J112B Figure 3-308 3-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 93 PCB is varied as shown in Table 3-303. M3MD2 M3MD1 M3MD0 One-sided copying 204~172 171~144 143~120 119~100 99~79 78~62 61~49 Scanner reverse Table 3-303 3-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 94 Scanner stop signal Scanner home position sensor Scanner original leading edge 1 sensor *1 Brakes to slow down. *2 Brakes to stop. Figure 3-309 3-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 95: Others
3 signal 0 Original detection signal 2 Original detection signal 1 Copyboard cover detection signal 1 DC controller PCB Figure 3-401 3-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 96: Operation
PS5 has turned on against the slice level. 2. If the copyboard cover is opened (PS5 is off), the cassette containing the maximum size paper will be selected. 3-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 97 Table 3-401 Inch Configuration Original detection signal Size Inch Sensor 2 Sensor 1 Sensor 0 None LTRR 279.4mm 431.8mm (11" 17") Table 3-402 3-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 98: Disassembly And Assembly
7. Before sliding out the duplexing unit or the fixing assembly, check to make sure that the front door switch or the power switch is off. 3-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 99: Scanner Drive Assembly
7) Remove the five mounting screws , and disconnect the two connectors ; then, remove the RDF rear right mount Figure 3-501 Figure 3-502 3-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 100 When removing the scanner drive motor assembly, be sure to mark the edge of the motor assembly in advance. 3-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 101: Routing The Scanner Drive Cable
3. Orienting the Heat Absorbing Glass Be sure to orient the heat absorbing glass whenever replacing the heat absorbing glass. White paint (rear) (front) 3-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 102: Removing The Scanner Drive Cable
7) Remove the five mounting screws , and disconnect the connector ; then, remove the scanner cooling fan Figure 3-507 3-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 103 9) Remove the two cable fixing screws (front) from the No. 1 mirror mount. Figure 3-509 10) Loosen the tension screw to loosen the scanner cable. Figure 3-510 11) Remove the scanner cable. 3-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 104: Adjusting The Tension Of The Scanner Drive Cable
1) Move the No. 1 mirror mount and the No. 2/No. 3 mirror mount to the left. 2) Set the mirror positioning tool (front, rear; FY9-3011) as shown. Figure 3-512 3-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 105: Adjusting The Scanner Home Position
A is in section B. Electrode mount (front) No. 1 mirror mount Section A (left of wall) Glass support (front) Hole Figure 3-514 3-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 106: Positioning The Scanner Locking Solenoid (Sl1)
8.5 ±0.5 mm (from below clamp to top of solenoid) Loosen these two screws to adjust once again. Scanner locking solenoid (SL1) Figure 3-515 3-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 107: Lens Drive Assembly
When installing the lens hood, fit the boss of the lens hood in the cut-off of the rail; then, hook at the rear while turning the lens hood clockwise. 3-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 108 5) Disconnect the connector , and remove the two mounting screws ; then, detach the lens Y direction drive motor from the support. Figure 3-518 3-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 109: Removing The Lens Stage Temporarily
, and remove the light-blocking curtain 2 (front) together with the holder. (Fix the light-blocking belt mount temporarily in place with tape to the lens stage.) Figure 3-520 3-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 110: Installing The Light-Blocking Belt Mount
Set the bobbin, and fix it in place with the mounting screw Figure 3-522 3-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 111: Removing The Lens X Direction Drive Motor
Figure 3-523 3) Remove the two mounting screws ; then, detach the lens X direction motor from the motor mount. Figure 3-524 3-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 112: Attaching The Lens X Direction Drive Belt
Own weight Figure 3-525 6. Routing the Light-Blocking Belt Light-blocking belt 1 Light-blocking belt 3 Light-blocking belt 2 Light-blocking belt 4 Figure 3-526 3-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 113: Replacing The Light Blocking Belt
4) Turn the bobbin clockwise two to two-and-a-half times, and remove the tape and pull out the end of the belt. 5) Hook the end of the belt on the lens unit. 3-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 114 B. Detecting the Level of Toner and O. Waste Toner Feeding Assembly..4-72 Controlling the Supply Operation ..4-30 C. Controlling the Developing Bias/Roller Electrode .....4-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 115: Chapter 4 Image Formation System
Cleaning screw Developing cylinder Cleaning roller Pre-transfer charging assembly Copy paper Separation charging wire Transfer charging assembly High-voltage transformer DC controller PCB Figure 4-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 116: Control Method
60 min of power-on. Photo mode • Once while making the first copy in photo mode after power-on. Table 4-102 Timing of Potential Control COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 117 The DC controller PCB compares the measurement against the target value; if there is a discrepancy, the intensity adjustment signal (LINT) from the DC controller PCB is corrected, and the potential is measured once again. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 118: Potential Measurement Circuit
The sensor and the potential measurement PCB are adjusted to a high precision as a pair, and cannot be adjusted in the field. They are treated as a single entity service part. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 119 Sensor drive circuit DC controller PCB Drum surface potential detection circuit High-voltage Level Micro- generation/ transformer processor shift adjustment circuit circuit circuit Figure 4-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 120: Controlling The Intensity Of The Scanning Lamp
(master) phase control power voltage J111B circuit LAON J503-2 Arc circuit J501-1 DC controller PCB Lamp regulator PCB Figure 4-105 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 121: Operation
AE mode may be executed on the copier side or the RDF side, the latter of which is used when originals are placed in the RDF. The copier’s AE mode is used, however, when manual feeding is selected. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 122 AE sensor 1 (S7) is used for left pick-up, while AE sensor 2 (S33) is used for right pick-up (Figure 4-108). AE sensor 2 (S33) AE sensor (S7) Figure 4-108 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 123 (b) Right Pick-Up (a) Left Pick-Up Figure 4-109 Points of Measurement on an Original equivalent equivalent Original Lighter Darker density Test Sheet Newspaper Figure 4-110 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 124: Making Checks
When the setting is Copy decreased in density adjustment mode, the copy of a newspaper Input will be lighter. Table 4-103 4-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 125: Controlling The Primary/Transfer Corona Current
DCON is ‘0’ Variable width pulse oscillator circuit goes OFF. Comparator circuit goes OFF. Drive circuit goes OFF. Primary high-voltage transformer goes OFF. 4-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 126 ) used in normal copying mode. As such, potential control is executed while making the first copy in photo mode after power-on to control the primary corona current. 4-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 127: Controlling The Transfer Corona Current
HVTTC is about 12 V. DCON is ‘0’. Comparator circuit goes OFF. Variable width pulse oscillator goes OFF. Drive circuit goes OFF. Primary transformer goes OFF. 4-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 129: Controlling The Separation/Pre-Transfer Corona Current
J114 J202 circuit DC transformerT302 HVSCT Constant Switching Drive current control circuit circuit circuit + - - J114 J202 HVT.POST.DC Figure 4-113 4-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 130: Turning On And Off The Separation/ Pre-Transfer Ii. Corona Current
HVTAC drive signal (HVP.POST.AC), roller electrode rive signal (ROED), and high- voltage DC drive signal (DCON) generated by the DC controller PCB go ‘1’. 4-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 131: Separation Corona Current (Dc Component)
The level of the pre-transfer corona current (DC component) is varied according to the voltage level of HVP.POST.DC. Pre-transfer corona current (µA) -330 Voltage level (V) of HVT.POST DC Figure 4-117 4-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 132: Of The Separation/Pre-Transfer Corona Current
Separation OFF ‘0’ ‘0’ ‘0’ ‘0’ — *Output from the DC controller PCB (connector of signal name). Table 4-104 Combinations of Transfer/Separation Signals 4-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 133: Controlling The Blanking Exposure Lamp (Led)
‘free’, on the other hand, frame erasing will be executed using the maximum size (297 mm). 4-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 134 (standard) along the middle of the paper. (The width may be adjusted to 20 ±10 mm in service mode.) 20 mm 2 mm (approx.) 2 mm (approx.) Figure 4-119 4-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 135: Controlling The Activation In Hole Image Erase Mode
LEDs that are over the area of measurement are turned with the remaining LEDs kept on. Blank exposure lamp (LEDs) Potential sensor Photosensitive drum Figure 4-121 4-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 136: Drum Heater Circuit
‘0’, turning off the drum heater. Drum surface temperature: 42°C Thermal fuse rated temperature: 76°C 4-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 137 AC driver Drum heater drive circuit Comparison circuit Drum Trigger circuit heater Triac Thermistor Drum heater controller PCB J01-1 Figure 4-122 4-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 138: Idle Rotation Of The Photosensitive Drum And The Developing Cylinder
Up to 5 min Table 4-107 Reference: The 100V machines are shipped with the drum heater switch (SW3) set to ON (idle rotation mode ON). 4-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 139: Cleaning The Primary Charging Wire
Wire cleaner Primary charging wire cleaning motor drive command DC controller PCB (PCLM) J103B-3.4 Primary charging wire cleaning motor (M12) Figure 4-123 4-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 140: Pre-Transfer/Transfer/Separation Charging Wire Automatic Cleaning Mechanism
Feeding screw Pre-transfer charging wire Pre-transfer charging wire cleaning motor ( M 13 ) Wire Wire cleaner Figure 4-124 (pre-transfer charging assembly) 4-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 141 CHAPTER 4 IMAGE FORMATION SYSTEM Transfer/separation charging wire DC controller PCB Wire Wire cleaner Transfer/separation charging wire cleaner motor (M6) Figure 4-125 (transfer/separation charging assembly) 4-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 142: Drum Cleaning Assembly/Developing Assembly
The waste toner feeding assembly is equipped with a torque limiter. If the screw becomes clogged with waste toner, the waste toner feeding screw detection circuit turns on to turn off the main motor (M1). 4-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 143 TS 2 Photosensitive drum Waste toner feeding pipe Developing clutch Main motor Waste toner case DC controller PCB Figure 4-201 4-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 144: Detecting The Level Of Toner And Controlling The Supply Operation
*3 Drives the hopper for 2.0 sec and then holds it for 1 sec, supplying toner by repeating this sequence. Figure 4-202 4-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 145 Otherwise, the toner collecting in the path from the hopper to the developing assembly can pour out because of the vibrations caused by inspection/repair work. 4-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 146: Controlling The Developing Bias/Roller Electrode
SCFW, SCRV To prevent fogging of the background. during copying AC component 1500 Vp-p, To execute toner projection. 2700 Hz Table 4-201 4-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 147 Developing clutch (CL8) DC bias AC bias DC bias : : +600 V : Potential control value (V + 100 V) Figure 4-206 4-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 148 Main motor (M1) Developing clutch (CL8) DC bias AC bias DC bias: : +600V : Potential control value (V + 100 V) Figure 4-207 4-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 149: Developing Bias Control Circuit
A-10 Micro- processor DCBTP Roller electrode DC transformer T402 J114 J202 Switch Drive circuit circuit ROED J114 J202 converter DCBC Figure 4-208 4-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 150: Roller Electrode Bias Control Circuit
The above condition supplies the roller electrode with a bias of about 1000 V; the DC bias is not controlled to a specific voltage. 4-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 151 ‘0’ ‘0’ — * Output from the DC controller PCB (connector No.). Table 4-202 Combination of Developing DC/Roller Electrode Bias Output Signals 4-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 152: Detecting The Waste Toner Feeding Screw (Locking)
When the waste toner feeding screw becomes locked, the gear A will slide in the direction of the arrow. Waste toner Figure 4-210 (rear view) 4-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 153: Disassembly And Assembly
1. Removing the Scanning Lamp 1) Remove the copyboard glass retainer, and remove the copyboard glass. 2) Move the No. 1 mirror mount to the center. 4-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 154 6. To install the lens hood, fit the boss of the lens hood in the cut-off of the rail at the front, and then engage the hook at the rear while turning the lens hood slightly clockwise. 4-40 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 155: Removing The Thermal Fuse
2) Remove the rear cover. 3) Remove the two mounting screws , and remove the copyboard glass right retaining plate Figure 4-304 4-41 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 156 , and remove the RDF mount cover 6) Remove the two mounting screws , and remove the rear top cover Figure 4-306 4-42 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 157: Pre-Exposure Lamp Unit
4) Remove the blanking exposure lamp assembly. 5) Remove the two mounting screws , and remove the blanking exposure assembly rail stay Figure 4-308 4-43 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 158: Blanking Exposure Lamp Assembly
Figure 4-310 Caution: When removing the blanking exposure lamp assembly, take care so as not to damage the photosensitive drum. 4-44 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 159: Photosensitive Drum
5) Remove the blanking exposure assembly rail stay. 6) Remove the three mounting screws , and remove the gear plate Figure 4-311 4-45 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 160 Remove the photosensitive drum while taking care not to damage it. You need not remove the bearing at the rear and the gear at the front of the photosensitive drum. 4-46 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 161: Replacing The Drum Heater
Install the photosensitive drum by reversing the steps used to remove it. During the work, be sure to take care, avoiding trapping of the cables (drum heater) and dirt or damage (drum surface). 4-47 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 162: Potential Sensor Assembly
(You need not perform this step if the surface temperature of the upper fixing roller is 100°C or less, since wire cleaning will be executed automatically.) 4-48 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 163: Pre-Transfer Charging Assembly
1) Open the front door, and slide out the fixing/feeding unit. 2) Remove the fixing/feeding front cover. 3) Remove the mounting screw , and remove the fixing guide Figure 4-317 4-49 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 164 , and slide out the transfer/separation charging assembly to the front; then, remove it by lifting it toward the left. Figure 4-318 4-50 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 165: Installing The Transfer/Separation Charging Assembly
(when sliding it from the front). Figure 4-319 Figure 4-320 Figure 4-321 4-51 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 166 4) Be sure to execute ‘wire cleaning’ in user mode. (You need not perform this step if the surface temperature of the upper fixing roller is 100°C or less, since wire cleaning will be executed automatically.) 4-52 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 167: Charging Wire
(slack) of the charging assembly, be sure to remove the left and the right shielding plates individually (i.e., do not loosen the mounting screws of both plates at the same time). Figure 4-324 4-53 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 168 6) Hook the charging wire on the charging wire positioner at the rear; then, hook the wire on the charging wire tension spring as shown in Figure 4-326, and twist it. Figure 4-326 4-54 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 169 9) Install the cushion at the front of the charging wire. (This does not apply to the primary charging assembly.) 10) Install the shielding plates (left, right). Caution: For other charging assemblies, install the two lids. 4-55 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 170: Stringing The Grid Wire Of The Primary Charging Assembly
4) Free a length (about 5 cm) of wire from the charging wire reel (0.1 mm dia.), and form a loop at the end (2 mm dia.). 4-56 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 171 Check to make sure that the grid wire is not bent or twisted. Check to make sure that the wire is strung at equal intervals (i.e., it is in the groove of the block). 4-57 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 172: Adjusting The Height Of The Charging Wire
A full turn of the screw changes the position of the charging wire by about 0.7 mm. 4-58 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 173: Cleaning The Primary Charging Assembly Anti-Stray Sheet
5) Remove the two screws , and remove the blanking exposure rail stay Figure 4-333 6) Clean the primary charging assembly anti-stray sheet Figure 4-334 4-59 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 174: Developing Assembly
Figure 4-335 3) Disconnect the connector , and slide out the developing assembly from the copier. Figure 4-336 4-60 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 175: Removing The Blade Unit
• Force the blade mounting plate against the developing assembly housing, and fix it in place with two mounting screws. (Before installing the blade, place copy paper on the developing cylinder to protect the cylinder.) 4-61 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 176: Cylinder And The Magnetic Seal
, parallel pin , and butting roll (one each). Figure 4-340 4-62 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 177 , and remove the electrode plate. Figure 4-341 6) Remove the mounting screw , and remove the polarity positioning plate Figure 4-342 4-63 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 178 Do not leave fingerprints or oils on the surface of the developing cylinder. If any, dry wipe the surface with lint-free paper. (Do not use solvent.) 4-64 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 179: Cleaning The Developing Assembly Anti-Stray Sheet
CHAPTER 4 IMAGE FORMATION SYSTEM 5. Cleaning the Developing Assembly Anti-Stray Sheet 1) Remove the developing assembly, and clean the developing assembly anti-stray sheet Figure 4-346 4-65 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 180: Hopper Assembly
2) Slide out the hopper assembly to the front. (See p. 7-18.) 3) Remove the mounting screw , and remove the hopper assembly Figure 4-347 4-66 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 181: Drum Cleaner
AC line of the drum heater. 3) Remove the four mounting screws , and remove the cleaning blade assembly Figure 4-349 4-67 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 182: Installing The Cleaning Blade
Install the cleaning blade by reversing the steps used to remove it with the following in mind: 1) Butt the cleaning blade against the rear. No gap. Blade retaining plate Figure 4-352 4-68 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 183: Installing The Side Seal
1) Install the side seal as shown (both ends; be sure it will not extend over the inner side of the cleaner housing). Figure 4-354 4-69 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 184 Waste toner to be removed Figure 4-355a Waste toner to be remove . 4~8mm (front) Toner guide roller Magnet roller Side scraper (front) Figure 4-355b 4-70 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 185: Separation Claw/Separation Claw Drive Assembly
2) Remove the screw , and remove the No. 2 insulating plate 3) Remove the screw , and remove the claw holder Figure 4-356 4-71 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 186: Waste Toner Feeding Assembly
7) Remove the two mounting screws , and remove the waste toner feeding assembly from the waste toner drive assembly. Figure 4-358 4-72 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 187: Pick-Up/Feeding System
F. Registration Feeding Assembly..5-93 COPIES ..........5-24 G. Feeding Assembly ......5-96 A. Making Two-Sided/Overlay Copies H. Holding Tray Assembly....5-101 (1st side)........5-24 I. Holding Tray Feeding Assembly ...5-118 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 189 Holding tray pick-up sensor PS49 Left deck outlet paper sensor PS22 Multifeeder pick-up sensor PS52 Claw jam sensor PS23 Registration paper sensor Table 5-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 190 PS34 PS49 PS39 PS37 PS35 PS32 PS36 Left deck Right deck PS27 PS25 PS26 Cassette 3 PS30 PS28 PS29 Cassette 4 Figure 5-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 191: Cassette Pick-Up
Cassette 4 pick-up clutch drive signal (C4PUCD*) J130A-2 Cassette 4 lifter detection signal (C4LTP) J130A-4 Cassette 4 paper detection signal (C4PD) J130A-7 Figure 5-201 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 192: Outline
Vertical path roller 0 paper sensor (PS24) Vertical path roller 1 paper sensor (PS33) Registration roller paper sensor (PS23) Registration roller clutch (CL9) Figure 5-202 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 193: Cassette Lifter Operation
Paper sensor Paper detecting lever Copy paper Lifter Figure 5-203 (paper present) Paper sensor Paper detecting lever Lifter Figure 5-204 (paper absent) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 194 Lifter position lever Lifter position Pick-up roller sensor/ (PS25/PS28) Paper detecting lever Paper sensor/ (PS26/PS29) Lifter Cassette open/ closed sensor (PS50/PS51) (M14/M15) Figure 5-205 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 195: Identifying The Size Of Copy Paper In The Cassette
DC controller PCB or the sensor so that the relationship may be maintained. (See Chapter 11 “Registering the Paper Width Basic Value.”) A4/A3 STMT-R STMT-R (139.7mm) (210mm) (297mm) Paper width Figure 5-206 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 196 CHAPTER 5 PICK-UP/FEEDING SYSTEM Width guide (rear) Paper width detecting VR Width guide (front) Paper length sensor unit Cassette Length guide Figure 5-207 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 197: Markings On The Width Guide Rail
Markings Paper Remarks STMT-R A5-R B5-R KLGL-R GLTR-R G-LGL A4-R LGL/LTR-R FLSC B4/B5 G-LTR 279.4 431.8mm (11" 17")/LTR A3/A4 Table 5-201 5-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 198 — — 186.0 FOLIO — — — AUS-FLS 165.2 — — — 144.1 A-LTR STMTR — — — Table 5-202 Table 5-203 5-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 199: Paper
A-OFI (220±1) (340±1) Table 5-204 5. Registering Paper Width Basic Value See Chapter 11 (service mode *3*; 'C1-STMTR' through 'MF-A4' under ADJUST). 5-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 200: Front Paper Deck Assembly
J119B-11 Right deck lifter motor drive command (RDLMD) J116B-2 Paper path 0 detection signal (PS24D) J116A-2 Right deck pick-up clutch drive command (RDPUCD*) Figure 5-301 5-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 201: Pick-Up Operation
The registration roller controls the copy paper so that its leading edge matches the leading edge of the image on the photosensitive drum. 5-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 202: Sequence Of Pick-Up Operations
(SL5) Left deck pick-up sensor (PS49) Vertical path roller 1 paper sensor (PS33) Vertical path roller 1 drive clutch (CL15) Figure 5-303 5-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 203: Lifter Operation
Lifter position Lifter sensor (PS31/PS34) Paper detecting lever Deck open/ Paper sensor closed sensor (PS32/PS35) (PS38/PS40) Copy paper Oil damper Figure 5-304 5-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 204 : Pick-up roller moves down; the light-blocking plate of the lifter detecting lever rises to leave away from the lifter position sensor (PS31/PS34). Figure 5-305 5-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 205: Deck Limit Detection
M18/ processor Limit detection drive motor circuit Deck limit PS37/ sensor PS39 Figure 5-306 Deck Limit Detection (2 cassettes + left/right deck) 5-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 206: Detecting The Presence/Absence Of Paper In The Deck
• After the first sheet has reached the pick-up vertical path sensor 0 (PS24) and until it arches against the registration roller. The rate of high-speed rotation is about twice the speed of normal rotation. 5-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 207: Multifeeder
Feeding roller Holding Pick-up roller roller Multifeeder pick-up solenoid To registration Copy paper roller SL10 Separation roller Tray PS22 Figure 5-401 5-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 208: Identifying The Size Of Paper In The Multifeeder
(See Chapter 11 “Registering the Paper Width Basic Value.”) Slide guide (rear) Variable resistor Multifeeder tray Slide guide (front) DC controller PCB Figure 5-402 5-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 209: Sequence Of Pick-Up Operations (Multifeeder)
(PS23) Registration roller drive clutch (CL9) Scanner motor (M3) Multifeeder pick-up relay solenoid (SL15) Scanner motor reverse rotation (reverse direction) Figure 5-403 5-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 210: Controlling The Registration Clutch
Image on drum Copy paper Copy paper Copy paper ahead of Copy paper behind image image on drum on drum Figure 5-501 5-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 211: Making Two-Sided/Overlay Copies
Holding tray inlet roller PS23 PS47 PS52 Holding tray assembly PS12 PS15 Holding tray re-pick up roller Holding tray feeding assembly Pick-up roller Figure 5-601 5-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 212: Sequence Of Operations (Two-Sided/Overlay Copies; 1St Side)
Holding tray re-pick up roller solenoid (SL6) Holding tray re-circulating lever motor (M7) : Motor CW rotation : Motor CCW rotation Figure 5-602 5-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 213: Making Two-Sided Copies (2Nd Side)
PS23 Holding tray registration roller PS20 PS19 Holding tray feeding PS33 assembly PS17 PS14 Pick-up motor DC controller PCB Figure 5-603 5-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 214: Sequence Of Operations (Two-Sided Copying; 2Nd Side)
(PS14) Holding tray registration clutch (CL3) Holding tray feeding assembly 2 paper sensor (PS9) Registration paper sensor (PS23) Figure 5-604 5-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 215: Making Overlay Copies (2Nd Side)
PS17 PS14 Holding tray re-pick up roller Holding tray inlet roller Holding tray registration roller Feeding roller Figure 5-605 5-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 216: Outline Of Operation
As soon as the trailing edge of the copy paper leaves the holding tray paper deflecting plate, the holding tray forward clutch (CL5) turns off to stop the copy paper. Figure 5-607 5-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 217 After reaching the holding tray registration roller, the copy paper is moved to the registration roller through the holding tray feeding assembly. PS14 Figure 5-609 5-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 218: Sequence Of Operations (Overlay Copying; 2Nd Side)
(PS14) Holding tray registration clutch (CL3) Holding tray feeding assembly 2 paper sensor (PS9) Registration paper sensor (PS23) Figure 5-610 5-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 219: Reversal Delivery
Holding tray inlet roller Holding tray forward clutch Pick-up motor Holding tray reversing clutch Figure 5-611 (clockwise rotation) PS47 PS12 Figure 5-612 (counterclockwise rotation) 5-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 220: Sequence Of Reversal Delivery Operations
(PS20) Holding tray reversing clutch (CL4) External paper delivery sensor (PS10) : Motor CW rotation : Motor CCW rotation Figure 5-613 5-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 221: Switching The Paper Size For Two-Sided/Overlay/Reversal Delivery Copies
Paper size guide plate PS20 Light-blocking plate Trailing edge PS21 guide plate Figure 5-614 5-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 222: Movement Of The Paper Jogging Plate And The Trailing Edge Guide Plate
Trailing edge guide plate Copy paper Counterclockwise Clockwise Figure 5-616 5-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 223: Detecting The Presence/Absence Of Copy Paper
(HPLPD). Holding tray re-circulating motor (M7) Copy paper Re-circulating lever Holding tray re-circulating lever home position sensor (PS19) Figure 5-617 5-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 224: Re-Pick Up From The Holding Tray
The weight plate is lowered only when the first sheet is re-picked up and when the last sheet is picked up. Separation belt Weight plate Feeding roller Holding tray Copy paper re-pick up roller Figure 5-618 5-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 225: Skipping Operation
• The copy paper and the original are A4, B5, or LTR and they are fed horizontally. • Neither binding mode nor cover mode is selected. • Copy count is '2' or lower. 5-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 226: Outline Of Operations
Making 1 Copy of 5 Originals 5th original, 3rd, 1st, 4th, 2nd original Reference: Skipping mode may be disabled in user mode. 5-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 228: Skipping Operation (Odd Number Of Originals)
The 2nd original is not copied (skipped), but is the 2nd copy sheet picked up from the holding tray. returned to the original tray of the RDF. Figure 5-620 5-41 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 229: Skipping Operation (Odd Number Of Originals)
RDF. reversed, and discharged. and discharged (2nd copy). Figure 5-621 5-42 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 230 (skipped), but is returned to the original tray of the RDF. assembly, reversed, and discharged. Figure 5-622 5-43 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 232: Reversal Delivery
If copies are made of an odd number of originals in reversal delivery and skipping modes, they will be stacked on the copy tray as shown in Figure 5-623b. Figure 5-623b 5-45 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 233: Detecting Jams
PS14 Holding tray feeding assembly PS33 PS17 PS24 PS49 PS36 Left deck Right deck PS27 Cassette 3 PS30 Cassette 4 Figure 5-701 5-46 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 234 Copy paper does not reach a specific sensor within a specific period of time (delay jam): 1. Registration roller delay jam identified by the registration paper sensor (PS23) 5-47 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 235 13. Holding try feeding assembly 1 stationary jam identified by the holding tray feeding assembly 1 paper sensor (PS8) 14. Fixing assembly separation claw assembly stationary jam identified by the claw jam sensor (PS52) 5-48 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 236: Registration Roller Delay Jam
Registration delay jam check Jam check Registration paper sensor Normal Error (PS23) Main motor (M1) I: Varies according to length of paper. Figure 5-703 5-49 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 237: Pick-Up Vertical Path Feeding 0/1 Delay Jam
Error paper sensor (PS24) Pick-up vertical path 1 paper sensor (PS33) Pick-up motor (M2) I: Varies according to paper length. Figure 5-705 5-50 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 238: Pick-Up Vertical Path Feeding 2 Through 4 Delay Jam
(PS27) Normal Error Pick-up vertical path 4 paper sensor (PS30) Pick-up motor (M2) I: Varies according to paper length. Figure 5-707 5-51 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 239: Fixing Assembly Outlet Delay Jam
Jam check Fixing assembly outlet paper Normal Error sensor (PS47) Main motor I: Varies according to paper length. Figure 5-709 5-52 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 240: External Delivery Delay Jam
External delivery delay jam check Jam check External delivery sensor Error Normal (PS10) Main motor (M1) I: Varies according to paper length. Figure 5-711 5-53 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 241: Internal Delivery Delay Jam
Internal delivery delay jam check Jam check Internal delivery sensor Normal Error (PS12) Pick-up motor (M2) I: Varies according to paper length. Figure 5-713 5-54 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 242: Holding Tray Inlet Delay Jam
Holding tray inlet delay jam check Jam check Holding tray inlet sensor Normal Error (PS15) Pick-up motor (M2) I: Varies according to paper length. Figure 5-715 5-55 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 243: Holding Tray Re-Pick Up Delay Jam
(PS14) Pick-up motor (M2) I : In two-sided copying, 0.1 sec. : In overlay copying, varies according to paper length. Figure 5-717 5-56 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 244: Holding Tray Registration Stationary Jam
Holding tray feeding assembly 2 Normal Error paper sensor (PS9) Holding tray feeding assembly 1 paper sensor (PS8) Pick-up motor (M2) Figure 5-719 5-57 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 245: Holding Tray Feeding 1/2 Stationary Jam
SCRV SCFW Left deck pick-up clutch (CL16) Jam check Error Left deck outlet paper Normal sensor (PS49) Pick-up motor (M2) Figure 5-721 5-58 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 246: Left Deck Pick-Up Stationary Jam
Fixing assembly outlet paper sensor (PS47) 0.15 sec or less Jam check Claw jam sensor (PS52) Normal Error Pick-up motor (M2) Figure 5-723 5-59 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 247: Disassembly And Assembly
CAUTION: Before disassembly or reassembly work, disconnect the accessory (if an accessory is installed) and main body power cord(s). 5-60 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 248: Multifeeder Assembly
1) Open the multifeeder paper guide. 2) Remove the two stop rings each (left, right), two shutters each , and two rollers each. Figure 5-802 5-61 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 249: Installing The Pick-Up Roller
(silver) is toward the front of the copier. Direction of rotation Collar (silver) Front (copier) Pick-up roller Marking (collar) Figure 5-803 5-62 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 250: Removing The Separation Roller
4. Removing the Separation Roller 1) Remove the multifeeder assembly. 2) Remove the two mounting screws , and remove the registration upper roller assembly Figure 5-804 5-63 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 251 5) Remove the joint, and remove the separation roller Caution: Take care when removing the separation roller, as the bushing at the front becomes disengaged. Figure 5-806 5-64 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 252: Removing The Feeding Roller
4) Remove the stop ring at the front of the feeding roller assembly; then, remove the feeding roller assembly together with the timing belt Figure 5-807 5-65 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 253: Removing The Multifeeder Paper Sensor
, and remove the solenoid together with the support plate. Figure 5-808 2) Remove the two mounting screws , and remove the grip Figure 5-809 5-66 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 254 , and remove the lower cover Figure 5-811 5) Remove the two mounting screws , and remove the guide plate Figure 5-812 5-67 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 255: Attaching The Side Guide Timing Belt In The Multifeeder Assembly
Move the slide volume in the direction of B, and attach the timing belt to the pulley. Timing belt Pulley Rack plate Pulley Section A Side volume Figure 5-814 5-68 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 256: Installing The Feeding Roller Of The Multifeeder
• If double feeding occurs, move the spring in the direction of arrow A. • If pick-up failure occurs, move the spring in the direction of arrow B. Figure 5-816 5-69 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 257: Position Of The Pick-Up Roller Releasing Solenoid Of The Multifeeder
Slide the solenoid in the direction of A to adjust so that the gap between the shutter and the shutter plate when the solenoid is pulled is 0.4 ±0.2 mm. Figure 5-817 Figure 5-818 5-70 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 258: Front Paper Deck Assembly
1) Remove the left/right stopper to the paper deck, and remove the paper deck. Figure 5-820 (left of right deck) Figure 5-820a (right of right deck) 5-71 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 259: Removing The Lifter Cable
4) Mark the position of the latch assembly; then, remove the left and right mounting screws (7 in total), and remove the latch assembly 5) Remove the gear cover from the front right. Figure 5-822a (left) 5-72 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 260 CHAPTER 5 PICK-UP/FEEDING SYSTEM Figure 5-822b (right) 6) Remove the mounting screw at the front, and free the oil damper plate Figure 5-823 5-73 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 262 Figure 5-827 12) Remove the two mounting screws , and remove the grip assembly Figure 5-828 5-75 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 264: Changing The Deck Paper Size
2) Remove the three mounting screws on the guide plates (front, rear, rear left); then, remove the three guide plates (rear) (front) Figure 5-830 5-77 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 265 4) Place copy paper in the deck, and slide the deck in the machine. 5) Enter the new deck paper size in the copier’s service mode (*5*). 5-78 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 266: Adjusting The Deck Registration
Figure 5-833. Figure 5-832a (left) Figure 5-832b (right) 0±1.5mm Figure 5-833 5-79 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 267: Right Deck Pick-Up Assembly (Cassette Holder)
2) Remove the two stop rings on the outside, and remove the pick-up roller in the direction of the arrow. Figure 5-835 5-80 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 268 (silver) is toward the rear. Direction of rotation (rear) Collar (silver) Figure 5-836b 5-81 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 269: Removing The Feeding Roller
4. Removing the Separation Roller 1) Remove the two mounting screws, and remove the feeding guide plate ; then, remove the open/close guide Figure 5-838 5-82 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 270 The fact is common to all urethane sponge types, and will not affect its physical performance. Keep in mind that color difference, if any, does not indicate different part types. 5-83 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 271: Adjusting The Pressure Of The Separation Roller
• If pick-up failure occurs, move the spring in the direction of A. Feeding roller Pressure lever Separation roller Pressure spring Figure 5-841 5-84 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 272: Orientation Of The Separation Roller
(front) Figure 5-842 Caution: If the separation roller is installed in the wrong orientation, interference with the clamping washer can cause problems. 5-85 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 273: Roller Of The Cassette/Deck Pick-Up Assembly
2 is 57.2 ±0.5 mm from the center of the hole A in the solenoid mount. 57.2±0.5mm Figure 5-844 5-86 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 274: Releasing Solenoid Of The Cassette
. After making adjustments, enter the paper width basic value in serviced mode (*4*) as instructed in Chapter 11. Figure 5-846 0±1.5mm Figure 5-847 5-87 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 275: Removing The Pick-Up Assembly From The Copier
1) Remove the left deck pick-up assembly from the copier. 2) Remove the stop ring from the front and the rear; then, remove the pick-up roller Figure 5-849 5-88 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 276 (silver) is toward the rear of the machine. Direction of rotation (rear) Collar (silver) Figure 5-850b 5-89 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 277: Removing The Separation Roller
3) Remove the separation roller from the separation roller shaft mount. Note: Take care not to lose the pin from the roller. 5-90 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 278: Roller Assembly Of The Left Deck Pick-Up Assembly
When installing the feeding roller to the feeding roller shaft , make sure that the marking “5” faces the front. 5-91 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 279: Pick-Up Vertical Path Roller Assembly
2) Remove the right deck pick-up assembly/cassette pick-up assembly. 3) Remove the two mounting screws , and disconnect the connector; then, remove the pick-up vertical path roller assembly Figure 5-855 5-92 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 280: Construction
3) Remove the two mounting screws , and remove the right rail support plate then, remove the registration feeding assembly pressure spring Figure 5-857 5-93 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 281: Removing The Registration Roller (Upper Rubber Roller)
2) Remove the spring , E-ring , spacer , bushing , and bearing Figure 5-859 5-94 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 282 , and bushing at the front. 4) Remove the pre-transfer upper guide , and remove the registration roller (upper rubber roller) Figure 5-860 5-95 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 283: Construction
2) Slide out the fixing/feeding unit. 3) Remove the screw (one each at left and right), and remove the fixing feeding unit stopper Figure 5-862 (left stopper) 5-96 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 284: Removing The Feeding Belt
1) Remove the fixing/feeding unit from the copier. 2) Remove the fixing/feeding front cover. 3) Remove the E-ring , spacer , and bearing at the front. Figure 5-864 5-97 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 285 5) Remove the E-ring , gear , and pin at the rear. 6) Remove the E-ring and bearing at the rear. Figure 5-866 5-98 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 286 , and remove the cord guide Figure 5-867 8) Remove the two screws , and remove the handle support plate Figure 5-868 5-99 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 287 , and remove the feeding upper plate at the front; then, remove the feeding belt and the postcard belt (front) Figure 5-870 5-100 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 288: Holding Tray Assembly
Holding tray reversing clutch (CL4) Holding tray forward clutch (CL5) Holding tray separation clutch (CL6) Holding tray registration clutch (CL3) Figure 5-871b (rear view) 5-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 289: Removing The Holding Tray From The Copier
Figure 5-872 3) Remove the three mounting screws (front). Figure 5-873 (front) 5-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 290: Removing The Holding Tray Registration Paper Sensor
3) Remove the holding tray re-pick up assembly. 4) Remove the two mounting screws , and remove the registration paper sensor assembly Figure 5-875 5-103 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 291: Removing The Re-Pick Up Roller
3) Turn over the holding tray assembly. 4) Remove the two mounting screws , and remove the holding tray driver PCB cover Figure 5-877 5-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 292: Removing The Holding Tray Y Motor
1) Slide the holding tray to the front and out of the copier. 2) Turn over the holding tray assembly. 3) Remove the two mounting screws , and remove the right rail Figure 5-879 5-105 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 293 ; then, turn over the holding tray Y motor assembly , and disconnect the connector. Figure 5-881 7) Remove the two mounting screws, and remove the holding tray Y motor. 5-106 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 294: Removing The Y Motor Home Position Sensor
9. Removing the Holding Tray Inlet Assembly 1) Remove the mounting screw , and remove the inlet assembly front upper cover Figure 5-883 5-107 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 295 , and remove the inlet assembly rear upper cover Figure 5-884 3) Remove the two mounting screws , and remove the inlet assembly Figure 5-885 5-108 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 296: Roller/Separation Belt Assembly
3) Remove the mounting screw Figure 5-886 4) While opening the left cover , remove the feeding roller/separation belt assembly Figure 5-887 5-109 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 297: Removing The Feeding Roller
3) Remove the stop ring , gear , and bushing at the rear. 4) Remove the roller from the feeding roller assembly. Figure 5-889 5-110 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 298: Removing The Separation Belt Assembly
13. Adjusting the Pressure of the Separation Roller of the Holding tray Turn the separation roller adjusting roll so that the distance to the shaft is 32.7 ±0.1 mm. 32.7±0.1mm Figure 5-891 5-111 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 299: Paper Deflecting Plate Drive Solenoid
1) Mark the position of the side guide plate with a pencil or the like. (See Figure 5-901.) 2) Remove the two mounting screws , and disconnect the two connectors; then, remove the side guide plate assembly Figure 5-893 5-112 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 300: Removing The Holding Tray X Motor
(See Figure 5-900.) 3) Remove the three mounting screws , and disconnect the connector ; then, remove the rear guide plate assembly Figure 5-895 5-113 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 301: Removing The Holding Tray Paper Jogging Solenoid
3) Remove the three mounting screws , and disconnect the connector ; then, remove the front guide plate assembly Figure 5-897 5-114 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 302 Figure 4-898 5) Remove the two mounting screws , two grip rings , and spring pin ; then, remove the solenoid Figure 5-899 5-115 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 303: Paper Jogging Guide Plate Assembly
20. Installing the Holding Tray Assembly Side Guide Plate Assembly Mark the position of the side guide plate assembly with a scribe, and install it along the marking. Figure 5-901 5-116 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 304: The Holding Tray Assembly Paper Jogging Guide Plate
When installing the solenoid, position it so that the stroke (distance between rubber silencer and solenoid edge) is 1.5 ±0.3 mm. 1.5±0.3mm Figure 5-903 5-117 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 305: Holding Tray Feeding Assembly
3) Remove the five mounting screws and two metal fixings , and detach the holding tray feeding assembly from the rail. Figure 5-905 5-118 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 306: Holding Tray Feeding Assembly
When installing the holding tray feeding assembly sensor cover, be sure to fit the two springs into the bosses behind the holding tray feeding assembly upper guide. 5-119 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 308 DISASSEMBLY AND ASSEMBLY..6-18 the Main Thermistor (TH1) ....6-10 A. Fixing Assembly ......6-19 E. Reciprocating Mechanism for B. Delivery Assembly ......6-36 the Upper Separation Claw ...6-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 309: Outline Of Operations
The drive of the fixing cleaning belt drive solenoid (SL14) is used to trigger the external delivery sensor (PS10). COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 310 1. Heater 120 V model: 790 W (main) + 410 W (sub) 220/240 V model: 1200 W (main) 2. Thermal switch: 240 ±10°C COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 311: Fixing Drive Assembly
• High at the start of copying. When the first copy paper moves past the registration paper sensor (PS23), its length is measured and the above control is executed. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 312 Fixing assembly inlet guide PS10 Drive solenoid Lower fixing SL16 roller PS12 Fixing drive Clutch solenoid To holding tray Main motor Figure 6-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 313: Controlling The Fixing Temperature
Upper fixing roller Main thermistor (TH1) Thermal switch AC driver PCB AC power supply PS52 PS47 Fixing lower roller Figure 6-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 314 –50% 110°C 155 sec None 195°C 0 sec *Period between another press on the Pre-Heat key and the start of STBY. Table 6-103 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 315 35 cpm mode 160°C 165°C Copying stop 155°C 160°C Stream reading 180°C 50 cpm mode 60 cpm stream reading 185°C mode recovery mode Table 6-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 316 Wait indication (212°C) (210°C) (210°C) 210°C (205°C) (205°C) 205°C (200°C) (200°C) 200°C (195°C) 195°C Mode H (17°C~) Mode M, L (12°C~17°C, ~12°C) Figure 6-103 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 317 Mode M, L (12°C~17°C, ~12°C) 10% saving 180°C 25% saving 155°C 50% saving 110°C *1 : May be varied in service mode. Figure 6-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 318: D. Reciprocating Mechanism For The Main Thermistor (Th1)
(SL14) through a one-way arm. Fixing assembly cleaning belt drive solenoid (SL14) One-way Thermistor (TH1) Reciprocating cam Upper fixing roller 12mm Thermistor Figure 6-105 6-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 319: Reciprocating Mechanism For The Upper Separation Claw
3 mm. Upper fixing Separation claw roller Separation claw Reciprocating cam Main motor Internal delivery roller Figure 6-106 6-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 320: Ssr Error Detection Circuit For The Fixing Heater
1.When the fixing feeding unit is slid out (FFURLS=1). 2.When the front door is opened (FDOD=1). 3.When the power switch is turned off (MSWD=1). 6-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 322: Locking Operation (Fixing/Feeding Unit)
Fixing/feeding unit locking solenoid drive signal J108B-2 (FFULSD) Spring clutch Fixing/feeding unit locking solenoid (SL13) Fixing/feeding Main motor assembly Locking lever Holding tray assembly Figure 6-108 6-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 323: Error Detection Circuit
At this time, the gate array will communicate to the master CPU the wrong detection and, at the same time, generates the power supply OFF signal. 6-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 324: Fixing Heater Error Activation Detection Circuit
The machine checks the fixing sub thermistor for a broken line, and indicates ‘E000’ for about 5 sec if it finds an open circuit and cuts off the AC power supply. 6-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 325: Motor Error Rotation Detection Circuit
DC controller PCB. DC controller PCB drive circuit Gate Master array ENCODER ERROR Detection drive circuit circuit Resetting Resetting To RDF Figure 6-112 6-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 326: Disassembly And Assembly
7. Before sliding out the duplexing unit or the fixing assembly, check to make sure that the front door switch or the power switch is off. 6-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 327: Fixing Assembly
A. Fixing Assembly 1. Construction Fixing upper unit Lower roller Upper roller Figure 6-201 2. Locking Mechanism Fulcrum Locking arm Figure 6-202 6-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 328: Removing The Fixing Cleaning Belt
1) Slide out the fixing/feeding unit from the copier. 2) Remove the fixing/feeding front cover. 3) Remove the mounting screw , and remove the fixing upper cover Figure 6-204 6-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 329 Figure 6-206 Caution: Be sure to remove the silicone oil collecting in the oil pan found under the cleaning belt feeding roller. 6-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 330: Installing The Fixing Cleaning Belt
Figure 6-208 Caution: Be sure to reset the counter (*6*; ‘WEB’) to ‘0’ after replacing the fixing cleaning belt. 6-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 331: Removing The Upper Fixing Unit
5) Remove the two mounting screws , and remove the flywheel mount Figure 6-210 6) Remove the E-ring , and remove the flywheel Figure 6-211 6-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 332 The silicone oil in the silicone oil pan can start to drip during the work; if possible, drain it in advance. Figure 6-213 6-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 333: Removing The Fixing Heater
Figure 6-214 9) Remove the two fastons at the rear. Figure 6-215 6-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 334 Since such a condition will lead to jamming of copy paper, make sure not to open the fixing assembly upper unit with force. 6-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 335: Installing The Fixing Heater
Figure 6-216 8) Remove the two mounting screws , and remove the heater holder at the rear. Figure 6-217 6-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 336 Figure 6-218 (rear) Figure 6-218a (front) 10) While paying attention to the thermistor and the thermal switch, remove the upper roller unit Figure 6-219 6-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 337: Installing The Upper Fixing Roller
Be sure to install the collars of the bushing in the correct order shown in Figure 6-221a. (rear) (front) Figure 6-221a 6-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 338: Removing The Thermal Switch
3) Remove the fixing assembly upper cover. 4) Remove the web. 5) Remove the mounting screw , and remove the oil pan Figure 6-223 6-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 339: Removing The Lower Separation Claw Assembly
6) Remove the two mounting screws , and remove the lower separation claw assembly 2 together with its support plate Figure 6-226 6-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 340: Removing The Lower Roller
1) Slide out the fixing/feeding unit from the copier. 2) Open the fixing/delivery assembly, and release the spring ; then, remove the upper separation claw Figure 6-228 6-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 341: Adjusting The Nip (Tightening The Pressure Adjusting Nut)
Reference: The paper will be stopped halfway once; it will then be automatically discharged in about 10 sec. 5) Measure the nip. 6-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 342: Adjusting The Fixing Clutch
41T gear and the control ring is 0.1 to 0.3 mm (equivalent of four sheets of 64 g/m2 plain paper). Figure 6-230 6-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 343 The sub thermistor cannot be replaced in the field. Replace it as part of the sub thermistor unit shown in Figure 6-232. 6-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 344: B. Delivery Assembly
2) Remove the fixing/feeding assembly front cover. 3) Remove the mounting screw , and pull out the pin ; then, remove the delivery upper guide Figure 6-234 6-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 345: Removing The Fixing/Feeding Assembly Locking Assembly
2) Remove the fixing/feeding assembly front cover. 3) Remove the two mounting screws , and remove the delivery roller guide Figure 6-236 6-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 346 6) Remove the E-ring and the bushing at the rear, and remove the external delivery roller Figure 6-237 (front) Figure 6-237a (rear) 6-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 347: Paper Sensor And The Internal Delivery Paper Sensor
, and slide the fixing assembly outlet paper sensor assembly to the right; then, disconnect the connector (J108), and remove the sensor. Figure 6-239 6-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 348: Removing The Internal Delivery Assembly Roller
Figure 6-241 9) Remove the fixing assembly outlet paper sensor assembly. (See p. 6-39.) 10) Remove the internal delivery roller. 6-40 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 349 D. Fan Unit .........7-30 Assembly ........7-53 E. Removing the Counter Assembly..7-33 R. Power Supply Inlet Assembly..7-54 F. Main Motor Assembly....7-34 G. Fixing/Waste Toner Drive Assembly ........7-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 350: Chapter 7 Externals/Auxiliary Mechanisms
PCB. Input key, VR911, LCD panel display LED Control panel controller PCB Interface unit Display controller memory DC controller PCB Figure 7-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 351: Lcd Processing
RAM data is then sent to the display panel in response to the timing signals generated by the LCD controller. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 352 Row driver Display LCD panel memory Row driver Touch panel Key control panel LED display Control panel controller PCB DC controller PCB Figure 7-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 353: Automatic Control Of Lcd Contrast
If the temperature around the control panel lowers, on the other hand, the resistance of the thermistor rises, thereby decreasing the voltage (Vo) supplied to the LCD unit. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 354: Touch Switch Inputs
PCB to identify which key has been pressed. Electrode Spacer Film Electrode Glass sheet Figure 7-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 355: Fans
Table 7-201 shows the function of each fan and the filter used and the orientation of the fan, while Table 7-203 shows when each fan turns on. Figure 7-201 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 356 FMHLF signal goes ‘1’, on the other hand, +12 V will be supplied so that the fan rotates at half speed. DC controller PCB +24v +12v FMFLL FMHLF Figure 7-202 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 358: Power Supply
24VA2 supply circuit 24VA1 Sorter 24 VA1 power 38VU supply circuit J305-5 J305-7 12VU Side J308-3 paper 24VA1 deck J308-5 38VU Figure 7-301 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 359: Power Supply Circuit
DC power supply circuits. Caution: Check to make sure that the power plug is disconnected always before working on the DC controller, as for replacement. 7-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 360 24VR output timing 24VA1 output timing 24VA2 output timing 5VR output timing 12VU output timing 24VU1 output timing 24VU2 output timing Figure 7-302 7-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 361: Date/Time Display Power Supply
Do not recharge, disassemble or dispose of it in fire. Keep the battery out of reach of children and discard any used battery promptly. 7-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 362: Disassembly And Assembly
7. Before sliding out the duplexing unit or the fixing assembly, check to make sure that the front door switch or the power switch is off. 7-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 363: External Covers
Figure 7-401 Inside upper cover (2) Power switch assembly cover (3) Fixing/feeding assembly front cover (3) Hopper cover Connector cover (1) Figure 7-402 7-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 364: Removing The Front Door
1) Open the front door, and remove the mounting screw of the stopper tape ; then, remove the two stoppers Figure 7-403 2) Pull out the pin Figure 7-404 7-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 365: Removing The Inside Upper Cover
1) Open the front door, and shift the fixing/feeding assembly lever; then, slide out the fixing/feeding unit. 2) Remove the three mounting screw , and remove the inside upper cover Figure 7-406 7-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 366: Cover
Figure 7-407 4. Removing the Rear Cover 1) Remove the nine mounting screws , and remove the rear cover Figure 7-408 7-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 367: Sliding Out The Hopper Assembly
4) Slide out the fixing/feeding assembly, and place the drum protection sheet on the registration roller assembly. 5) Disconnect the four connectors , and remove the two mounting screws Figure 7-410 7-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 368 If you merely want to release the hopper assembly without removing it, open the multifeeder door and the upper right door to allow for space in the front. Drum shaft Figure 7-411 7-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 369 7) Slide out the process unit until it stops. Figure 7-412 8) Hold the process unit as shown, and remove it. Right hand Left hand Figure 4-413 7-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 370: Installing The Process Unit
; then, insert the drum fixing tool , and fit the mounting screw into the center hole of the drum to fix it in place. Figure 7-415 7-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 371: Control Panel
RDF catch metal fixings Figure 7-416 3) Remove the three screws , and remove the upper right cover Figure 7-417 7-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 372 , and disconnect the connector, and open the hopper Figure 7-419 Caution: Check to make sure that the connector is connected before installing the hopper assembly. 7-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 373 7) Remove the three mounting screws , and remove the inside upper cover ; then, slide in the fixing/feeding assembly. Figure 7-421 7-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 374: Removing The Control Panel Pcb
2. Removing the Control Panel PCB 1) Remove the four mounting screws , and shift the back cover to the right to remove. Figure 7-423 7-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 375: Removing The Touch Panel
(J956) of the inverter PCB. 3) Remove the five mounting screws , and remove the touch panel. Figure 7-425 7-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 376: Removing The Control Panel Controller (Cpu) Pcb
(CPU PCB) Figure 7-426 2) Remove the 13 mounting screws , and remove the numeric keypad Figure 7-427 7-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 377: Door Switch Assembly
1) Remove the front door, and remove the hopper assembly. 2) Remove the three mounting screws , and remove the power supply switch assembly cover Figure 7-429 7-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 378: Installing The Drum Heater Switch
4) Remove the sensor from the multifeeder door sensor/multifeeder door catch assembly. 3. Installing the Drum Heater Switch Install the switch so that its right side is in ON position. 7-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 379: Fan Unit
1) Remove the rear cover. 2) Remove the two mounting screws , and disconnect the connector ; then, remove the exhaust fan Figure 7-432 7-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 380: Removing The Fixing Heat Exhaust Fan
2) Disconnect the connector (J301) of the high-voltage transferor PCB; then, remove the three mounting screws , and shift the high-voltage transformer assembly Figure 7-434 7-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 381: Removing The Cleaner Fan
2) Remove the three mounting screws, and shift the high-voltage transformer PCB. 3) Remove the two mounting screws , and disconnect the connector ; then, remove the developing fan assembly Figure 7-436 7-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 382: Removing The Feeding Fan
2) Remove the mounting screw , and disconnect the two connectors ; then, remove the counter assembly together with the support plate. Figure 7-438 7-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 383: Main Motor Assembly
, and loosen the tension pulley; then, remove the four mounting screws , detach the belt from the end of the main motor, and remove the main motor Figure 7-439 7-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 384: Fixing/Waste Toner Drive Assembly
2) Remove the rear cover. 3) Remove the high-voltage transformer PCB. 4) Remove the cleaner fan and the feeding fan. 5) Remove the waste toner bottle. 7-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 385 8) Remove the mounting screw of the DC controller PCB, and disconnect the three connectors (J113, J114, J115) and the two relay connectors 7-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 387: Main Drive Assembly (Drum/Developing)
4) Remove the waste toner bottle. 5) Remove the cleaner fan, feeding fan, and developing fan. 6) Remove the fixing/waste toner drive assembly. 7-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 388 , and free the harness guide 1 Figure 7-446 8) Remove the seven mounting screws , and remove the main drive unit Figure 7-447 7-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 389: Construction
3) Remove the waste toner bottle. 4) Remove the five mounting screws , and remove the rear right grip assembly Figure 7-449 7-40 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 390 , and remove the waste toner bottle support plate Figure 7-450 6) Remove the two mounting screws , and remove the harness guide 2 Figure 7-451 7-41 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 391: Construction
, and disconnect the two connectors ; then, remove the vertical path drive assembly Figure 7-452 J. Pick-Up Drive Assembly 1. Construction Figure 7-453 7-42 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 392: Removing
7) Free the harness guide 1. (See Figure 7-446.) 8) Detach the timing belt. 9) Remove the two mounting screws , and remove the deck relay drive assembly Figure 7-454 7-43 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 393: Duplexing Drive (1) Assembly
, and disconnect the two connectors ; then, remove the pick-up drive assembly. Figure 7-455 K. Duplexing Drive (1) Assembly 1. Construction Figure 7-456 7-44 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 394: Removing
5) Remove the four mounting screws , and remove the duplexing drive (1) assembly Figure 7-457 7-45 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 395: L. Lifter Drive Assembly
4) Remove the rear right grip assembly. 5) Remove the three mounting screws , and remove the waste toner bottle support plate Figure 7-459 7-46 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 396 CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS 6) Disconnect the connector , and remove the three screws ; then, remove the lifter drive assembly Figure 7-460 7-47 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 397: M. Cassette Pick-Up Drive Assembly
4) Remove the waste toner bottle support plate. 5) Remove the rear right bottle support plate. 6) Remove the DC controller PCB, and detach the timing belt. 7-48 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 398 3 and 4; then disconnect the connector Figure 7-462 8) Remove the five mounting screws , and remove the cassette pick-up drive assembly Figure 7-463 7-49 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 399: Attaching The Drive Belt
Make sure that the holding tray drive belt is on the roller under (inner side) the pick- up drive belt and the pick-up drive belt is on the roller above (outer side) the pick- up drive belt. 7-50 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 400: Dc Controller Pcb
• After replacement, make necessary settings in service mode and user mode. • Record new service mode settings on the service label attached to the front door. 7-51 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 401: Dc Power Supply Assembly
AC relay connector). 4) Remove the two mounting screws , and remove the DC power supply PCB together with its mount. Figure 7-467 7-52 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 402: High-Voltage Transformer Assembly
4) Remove the two fastons , and disconnect the connector ; then, remove the two mounting screws , and remove the transformer assembly Figure 7-469 7-53 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 403: Power Supply Inlet Assembly
2) Remove the upper left cover and the lower left cover. 3) Remove the four mounting screws 4) Disconnect the four connectors , and remove the power supply cord mount Figure 7-470 7-54 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 404: Chapter 8 Paper Deck-A1
C. Drive System .........8-35 E. Opening/Closing the Deck D. Feeding System ......8-44 (compartment) .......8-11 E. Electrical System ......8-49 F. Controlling the Deck Motor....8-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 405: Side Paper Deck
When the lifter is at pick-up position, Deck lifter position Q110 DLPD '1'. sensor (When the light-blocking plate is at Q110.) Figure 8-101a COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 406: Inputs To The Side Deck Driver
Deck lifter lower limit, '1'. limit detecting (When SW103 is not pressed.) switch +38VU J9-1 +24VU. Power supply +5VR J11-11 +12VU. Copier Figure 8-101b COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 407: Outputs From The Side Deck Driver (1/1)
SL101 DPRSD* When '0', SL101 goes ON. solenoid 24VU J111-2 J103-2 Deck OPEN SL102 solenoid DOPSD* When '0', SL102 goes ON. Figure 8-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 408: Pick-Up
The registration roller controls the copy paper so that its leading edge matches the leading edge of the image on the photosensitive drum. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 409 CHAPTER 8 PAPER DECK-A1 DC controller PCB Side deck driver PCB CL101 M101 Q105 CL102 Q106 SL101 Q107 Figure 8-103 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 410: Sequence Of Operations (Deck Pick-Up)
(CL102) Deck pick-up roller releasing solenoid (SL101) Deck pick-up sensor (Q107) Deck vertical path sensor (Q106) Deck vertical path clutch (CL101) Figure 8-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 412: Deck Lifter
At this time, the lifter repeats moving down until the deck lifter lower limit switch (SW103) is pressed each time copy paper is supplied (maximum paper supply position). COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 413: Deck Lifter
Deck feed roller Deck lifter M102 motor Deck separation roller Deck lifter cable Deck lifter lower limit detecting switch (SW103) Lifter Copy paper Figure 8-106 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 414 Indicator window Deck front cover Drive belt Lifter lowers, and paper level (white area) increases. Deck lifter Coupling motor M102 Figure 8-107 8-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 415: (Compartment)
Deck lifter lower limit detection J2001A SW103 signal (DLLD) J8-5 Deck lifter motor drive J2001A J6-1,2 command Direction of OPEN M102 Figure 8-108 8-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 416: Sequence Of Operations (Deck Opening/Closing)
Deck lifter position sensor (Q110) Deck lifter DOWN Deck lifter UP * : Varies according to the level of the stack. Figure 8-109 8-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 417: Dc Controller Pcb
Encoder Deck main motor clock pulse signal (DMFG) Deck main motor driver PCB *Deck main motor high-speed signal (DMHS) Figure 8-110 8-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 418 When installing the deck to the copier, check to make sure that both bits of the DIP switch are at ON (deck main motor high-speed signal DMHS=0); otherwise, the wrong pick-up/feeding speed will be selected, causing jams. 8-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 419: Controlling The Deck Lifter Motor (M102)
• The deck lifter motor drive signal (DLMON*) is ‘0’. • The deck lifter UP signal (DLUP*) is ‘1’. As result, the lifter starts to move down. 8-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 420 (SW103) Deck paper supply position detection signal (DPSP) Q103 Deck paper supply position sensor Side deck driver PCB DC controller Figure 8-111 8-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 421: Detecting Jams
Q106 Q107 Figure 8-201 Notation Name Function Q106 Deck vertical path sensor Delay/stationary jam Q107 Deck pick-up sensor Delay/stationary Table 8-201 8-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 422: When Copy Paper Is Present At Any Of The Sensors At Power-On, End Of Wait-Up, Or During Standby
Deck pick-up sensor Normal Error (Q107) Deck vertical path sensor (Q106) Deck main motor (M101) I: Varies according to length of paper. Figure 8-203 8-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 423: Disassembly And Assembly
7. Before sliding out the duplexing unit or the fixing assembly, check to make sure that the front door switch or the power switch is off. 8-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 424: External Covers
Vertical path assembly opening/ Front cover closing grip Compartment opening/closing switch Vertical path cover (rear) Upper front cover Rear cover Deck releasing grip 8-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 425: Removing The
(rear) Figure 8-301 2) Loosen the four screws , and remove the front cover of the deck toward the front. Figure 8-302 8-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 426 Install the front cover so that the gap between the front cover and the upper front cover is 3 ±1 mm. Upper front cover Front cover Figure 8-303a 8-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 427 Deck front cover Indicator window Drive belt Paper level (white area) increasing Figure 8-304 (front view) 8-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 428: Removing The Vertical Path Cover (Rear)
2) Holding the vertical path assembly opening/closing grip, open the deck vertical path assembly. 3) Remove the two screws , and remove the vertical path cover (rear) Figure 8-305 8-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 429: Removing The Right Cover
3) Remove the three screws , and shift the right cover in the direction of the arrow (Figure 8-307) to remove. Figure 8-307 8-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 430: Removing The Upper Cover
(rear) Figure 8-308 3) Remove the three screws , and disconnect the connector ; then, remove the upper front cover Figure 8-309 8-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 431 4) Close the deck vertical path assembly, and remove the two screws ; then, move the upper cover in the direction of the arrow (Figure 8-310). Figure 8-310 8-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 433 5) Holding the deck as shown (Figure 8-353), and place it on the stack of paper prepared in step 1). Figure 8-353 8-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 434: Removing The Compartment
2) Detach the deck from the copier, and push down the latch plate of the compartment with a finger to open the compartment. (rear) Figure 8-355 8-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 436: Changing The Deck Paper Size
4) Remove the screw (1 each), and fix the left/right guide plate to suit the new paper size. Figure 8-359 8-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 437: Adjusting The Deck Registration
(SL102) using the two screws . (At this time, refer to line on the latch plate.) (rear left of compartment) Figure 8-360 8-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 438: Positioning The Roll
2) Slide out the compartment fully, and adjust the four mounting screws on the roll support plate so that the roll is about 3 mm from the floor Figure 8-361 8-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 439: Drive System
1) Remove the vertical path cover (rear). (See p. 8-24.) 2) Disconnect the connector , and remove the E-ring ; then, remove the deck vertical path clutch Figure 8-401 8-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 440: Removing The Deck Main Motor (M101)
. (At this time, take care not to damage the gear at the end of the motor spindle.) Figure 8-402 8-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 441: Removing The Deck Lifter Motor (M102)
3) Remove the compartment from the deck. (See p. 8-30.) 4) Disconnect the two connectors , and remove the five screws ; then, remove the deck lifter motor unit Figure 8-405 8-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 442: Removing The Lifter Cable (Deck Front)
4) Remove the front cover of the deck. (See p. 8-21.) 5) Remove the four screws , and remove the roll support plate Figure 8-407 8-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 445 6) Disconnect the five connectors , and remove the five screws ; then, remove the metal plate Figure 8-410 8-41 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 446 If you fail to perform this step, the lifter cable will become slack when the lifter unit is removed. Figure 8-411 8) Remove the five screws , and remove the lifter motor unit Figure 8-412 8-42 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 447: Routing The Lifter Cable
(height) from the base plate of the compartment to the top face of the lifter to check that the lifter is level. (rear) Figure 8-413 8-43 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 448: Feeding System
Figure 8-450 Caution: When installing the deck pick-up unit , be sure to tighten the two screws shown in advance. Screws Figure 8-451 8-44 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 449: Removing The Deck Pick-Up Roller
Figure 8-453. Direction of rotation (rear) Deck pick-up roller Marking (roller) Collar Marking (collar) Figure 8-453 8-45 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 450: Removing The Deck Feeding Roller
When installing the feeding roller rubber to the feeding roller shaft, make sure that the marking “5” faces the rear. (front) Figure 8-455 8-46 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 451: Removing The Deck Separation Roller
The fact is common to all urethane sponge types, and will not affect its physical performance. Keep in mind that color difference, if any, does not indicate different part types. Figure 8-456a 8-47 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 452: Adjusting The Deck Separation Roller Pressure
Be sure to fix the solenoid in its initial position whenever installing it on its own. Figure 8-458 8-48 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 453: Electrical System
1) Detach the deck from the copier, and push down the latch plate of the compartment with a finger to open the compartment. (rear) Figure 8-501 8-49 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 454 ; then, remove the upper front cover Figure 8-502 3) Remove the two screws , and remove the OPEN switch PCB Figure 8-503 8-50 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 455 G. Installing the Pick-Up Assembly ..9-20 VI. INSTALLING THE REMOTE H. Supplying Toner......9-22 DIAGNOSTIC DEVICE II....9-56 I. Connecting the RDF Connector ..9-26 A. Installation to the Copier ....9-56 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 456: Chapter 9 Installation
6. Keep the machine at least 10 cm/3.9 in away from the wall to allow ample space for operation. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 457 In general, the silicone gas (vapors of the silicone oil of the fixing assembly) from the copier soils the corona charging wire, making the life of the wire shorter. (This is most conspicuous in a low-humidity environment.) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 459: Unpacking And Installing
3. The machine weighs about 210 kg. Be sure to work in a group of four when lifting it. (front) Remove the cover. *To remove, hold down the stopper. (rear) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 460: Unpacking
Then, remove the cardboard sheets (base plates). The machine weighs about 210 kg. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 461 Open the cardboard box that comes Check to make sure that all attachments are with the machine, and take out the found in the box. parts and materials. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 462: Installing The Scanner
Remove the scanner fixing (packing tape). (Keep the fixing in store. You may need it when relocating the machine in the future.) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 463: Installing The Fixing Assembly
Be sure to remove any foreign matter (glue from tape) from the feeding belt. Remove the tag retaining tape, and Fixing/delivery assembly open the fixing/delivery assembly. Tags COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 464 CHAPTER 9 INSTALLATION Step Work Remarks Remove the two fixing assembly nip Screw (rear) releasing screws. Screw (front) Close the fixing/delivery assembly. COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 465: Installing The Ap Kit And The Charging Assemblies
Further, be sure that the charging assembly is fully dry. 9-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 466 Screws Connector cover Slide out the hopper assembly to the front, and turn it 90° to the front right. 9-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 467 Connectors remove the drum fixing screw in step 12.) Caution: Free the harness from the edge saddle. Screw Drum fixing Screw screw 9-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 470 Drum protection sheet Caution: Do not roll the drum protection sheet. Install the lower rear right cover of the machine. 9-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 472: Replacing The Delivery Roller Leaf Spring
Install the cover to the fixing/delivery assembly (2 screws), and slide in the fixing/delivery assembly into the machine, and close the front door. 9-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 474 (front). Fix the developing assembly locking unit with a screw. Screw Install door tape multifeeder door with a screw. 9-19 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 475: Installing The Pick-Up Assembly
(The illustration shows the paper Spacers deck type.) Reference: If the cassette is set, the spacer is locked in place and makes Spacer removal difficult. 9-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 476 Push in the right deck/cassette, and close the upper right cover, lower right cover, and multifeeder. 9-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 478 Toner starts to fall from the toner bottle to the hopper; tap lightly on the bottom of the toner bottle until all toner has fallen. 9-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 479 Push the shutter on the machine until it is at indicated on the hopper assembly. • The toner bottle gets unlocked. Marking 9-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 480 CHAPTER 9 INSTALLATION Step Work Remarks Pull the toner bottle in the left upward direction, and remove it upward. Close the hopper cover. 9-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 481: Connecting The Rdf Connector
Work Remarks Remove the face plate of the RDF connector. Insert the RDF connector (male) to the connector (female) of the machine. 9-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 482 • Check that the Add Paper indicator turns on. • Enter a number (keypad) to check that the copy count display is correct. (Press the Clear key thereafter.) 9-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 483 Press the user mode key *. Toner is supplied (from hopper to develop); (about 8 to 10 min). Press the Reset key twice to leave service mode. 9-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 484 • Check to make sure that abnormal noise is not heard. • Check to make sure that paper feeding in the holding tray assembly is normal. 9-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 485 As necessary, install the accessories (sorter, etc.) according to their respective Installation Procedure. Fill out the Service Sheet. 9-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 486: Relocating The Machine
The adjusters can slip out; take care not to lose them. C. When moving the machine in and out of the site of installation, be sure to remove the Paper Deck-A1 (accessory). 9-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 487: Installing The Control
(catch for RDF). Figure 9-401 2) Remove the three screws at the front of the upper right cover of the machine. Figure 9-402 9-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 488 Figure 9-404 5) Shift the fixing/feeding assembly releasing lever from vertical to horizontal position, and slide out the fixing/feeding assembly Figure 9-405 9-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 489 ; then, remove the control panel, and turn it over. Caution: Take care not to damage the surface of the control panel by the chassis of the machine. Figure 9-407 9-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 490 , and shift the control panel PCB cover about 5 mm to the right to remove. Figure 9-408 9) Remove the control card inlet face plate Figure 9-409 9-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 491 Figure 9-410 11) Place the sheet over the hole in the control panel (display hole of the control card). Figure 9-411 9-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 492 Figure 9-412 Further, check to make sure that the connector for the printer is centered over the hole. Figure 9-413 9-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 493 Be sure to lead the harness through the harness retainer so that it will not come into contact with the scanner cable or the drive pulley. 9-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 494 When installing the hopper assembly, check to make sure that the connector is connected. 21) Turn on the machine, and check the operation of the control card. 9-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 495: Installing The Copy Data Controller-A1
• To control AB-configuration paper (A3, A4, B4, B5), shift it to OFF. • To control inch-configuration paper (11 17, LTR, LGL, STMT), shift it to ON. 9-40 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 496 ID input, control by paper size, control by toner color, control by copying mode, and control by paper type. Table 9-501 9-41 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 497: Installation Procedure
If you are connecting a Remote Diagnostic Unit-A1 or a Copy Data Interface Board-B1, i.e., if a Power Supply-A1 is necessary, Fig. 9-504 9-42 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 498 4) If the user will be using a card reader, connect the card reader relay cable to the Copy Data Controller-A1 J4 (9p). Card Reader-A1 relay cable Fig. 9-506 9-43 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 499: Installing To The Copier
2) Remove the relay postheader from the cable, and connect it directly to the connector on the copier’s DC controller PCB. Connector for Connector for Copy Data Card Reader-A1(9P) Controller-A1(8P) Fig. 9-508 9-44 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 500 (At this time, disconnect the relay postheader from the relay cable.) 4) Fix the Copy Data Controller-A1 to the copier’s rear cover with four screws. Screws Screws Fig. 9-509 9-45 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 501: Checking The Operation
2) Connect the Power Supply-A1 to the power plug, and check that LED1 on the Copy Data Controller-A1 turns on. LED1 LED1 LED2 LED3 LED4 LED5 LED6 SW1 ON SW5 ON Fig. 9-511 9-46 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 502 Make one copy, and check that LED3 flashes during copying operation. LED1 LED2 LED3 LED1 LED2 LED3 LED4 LED5 LED6 SW1 ON SW5 ON Fig. 9-513 9-47 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 503 6) Connect the connector of the Ten Key Pad-A1 to the connector (J3) on the Copy Data Controller-A1. Connector (J3) Connector of the Ten Key Pad-A1 Fig. 9-515 9-48 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 504 2. If ID mode has been stored in the copier’s memory, you can use that ID for the Copy Data Controller-A1. To do so, operate as follows: 9-49 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 505 1, 2, 3 Table 9-504 LED1 LED2 LED3 LED1 LED2 LED3 LED4 LED5 LED6 LED5 SW1 ON SW5 ON SW1-3 SW1-2 SW1-1 Fig. 9-518 9-50 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 506 Setting a new mode of control clears such data as the unit price, upper limit, counter reading, and ID. Set them again as necessary. 9-51 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 507 1. You cannot make multiple paper size codes for SIZE1 through 4. 2. The counter reading remains intact after changing the size. 9-52 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 508 If you are setting the Copy Data Interface Board-B1, Copy Data Interface Board- A1, or the Remote Diagnostic Unit-A1 as an option, see the appropriate Installation Procedure. 9-53 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 509 12) Attach the Switch Settings label to the top cover, and record the setting of each switch on the label. Screw Switch Settings label Top cover Screw Fig. 9-522 9-54 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 510 16) Hook the cable connected to the Copy Data Controller-A1 on the petty-pull. 17) Make sure that no cable is trapped by the casters of the copier or the sorter. 9-55 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 511: Installation To The Copier
5. Make sure the computer in the service station has been properly loaded with the RDD’s settings data. 1) Remove the two screws to detach the RDD’s top cover Fig. 9-601 9-56 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 512 Fig. 9-602 3) Remove the two screws , and detach the face cover from the copier’s rear cover. Fig. 9-603 9-57 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 513 5) Fix the RDD in place on the copier’s rear cover with four screws ; use the screws that come with the RDD. Fig. 9-605 9-58 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 514 2. If you are mounting or replacing the ROM (IC6; ) for upgrading the RDD, be sure to shift bit 7 of the DIP switch 2 to ON. 9-59 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 515 RDD circuit configuration sets dial pulse speed to 20 PPS SW3-5 sets dial pulse speed to 10 PPS SW3-6 – reserved Table 9-601 9-60 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 516 SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 SW2-6 SW2-7 See step 9). SW2-8 Table 9-602 LED1 LED2 LED3 BAT1 LED5 LED6 LED4 Fig. 9-611 9-61 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 517 13) Shift bit 6 of the DIP switch 2 on the RDD’s PCB to OFF. LED1 LED2 LED3 BAT1 LED5 LED6 LED4 Fig. 9-613 9-62 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 518 RAM once again starting with step 11) through 13). Important: You must confirm that the RDD’s settings are correct by calling the service station. 9-63 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 519 Connect the copier’s power plug, and switch it on to make sure that LED 2 (orange) flashes. LED1 LED2 LED3 BAT1 LED5 LED6 LED4 Fig. 9-617 9-64 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 520 . (Make sure that the Power Unit’s cable is fixed in place on the cable guide inside the RDD and is not trapped by the top cover 9-65 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 522 SCHEDULED SERVICING TABLE ..10-4 CONSUMABLES AND DURABLES ...10-2 SCHEDULED SERVICING CHART ...10-6 A. Copier ..........10-2 A. Copier ..........10-6 B. Paper Deck-A1 ......10-3 B. Paper Deck-A1 ......10-8 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 523: I. Periodically Replaced Parts
Primary charging assembly grid FY1-0883-000 500,000 wire Note: The above values are all estimates and are subject to change based on future data. Table 10-101 10-1 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 524: Ii. Consumables And Durables
Pre-transfer charging wire cleaner FF5-3090-000 500,000 Pre-transfer charging assembly FA4-1867-000 500,000 scraperr FB2-7200-000 Upper fixing roller 500,000 FB2-7121-000 500,000 Lower fixing roller Table 10-201a 10-2 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 525 * Exercise care during replacement; the pick-up roller of the side paper deck and the pick-up roller of the machine must be oriented differently. Table 10-201c 10-3 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 526: Scheduled Servicing Table
If the waste toner case is half full or more, dispose of the toner in a plastic bag; or, replace the waste toner case. 10-4 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 527 Record the most recent counter reading. Fill out the Service Sheet, and report to the person in charge. 10-5 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 528: Scheduled Servicing Chart
Developing cylinder Developing Developing roller assembly Anti-stray toner sheet (developing assembly) Note 1: Take care not to touch the mirrors or the lenses. 10-6 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 529 Feeding belt Feeding roller Pick-up roller (crescent) Upper separation belt Holding tray Separation lower feeding roller Toner supply mouth Hopper Toner receptacle 10-7 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 530: Paper Deck-A1
250,000 500,000 750,000 1,000,000 Pick-up roller Pick-up Feeding roller assembly Separation roller Vertical path, roll 10-8 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 531 A. Copy Paper Jams......11-119 VIII. SELF DIAGNOSIS ......11-259 B. Feeding Faults......11-126 A. Copier..........11-259 VI. ARRANGEMENT AND FUNCTIONS B. RDF-D1 ........11-264 OF ELECTRICAL PARTS ....11-127 C. Sorter...........11-266 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 532 If you want to find out the action to take or the steps to correct a specific problem, go through the steps in order. Answer YES or NO to the questions under “Checks,” and take the action indicated accordingly. 11-1 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 533 PCB.” Connect the positive probe of the meter to the terminal marked (+) and the negative probe to the terminal marked (–). 11-2 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 534 Is 'VL1M" 'VL1T' replace the ±10V? photosensitive drum. Increase the value of 'VDT-SW'. Turn off and on the machine, and make a copy. 11-3 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 535 Moist cloth (Note) Cleaning Re-pick up assembly, Alcohol, lint-free paper Cleaning refreshing roller Re-pick up assembly, Alcohol, lint-free paper Cleaning pick-up roller, registration roller 11-4 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 536: A. Image Adjustment
Make adjustments so that the image leading edge margin is 4.5 ±1.5 mm when the Test Sheet is copied in Direct. (unit: REGIST:0.1 mm) 4.5±1.5mm Figure 11-202 11-5 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 537 0 ±1.5 mm. 0±1.5mm Figure 11-203 Left/Right Front Paper Deck Adjusting plate Screw Figure 11-204a Adjusting plate Screw Figure 11-204b 11-6 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 538 (At this time, use the scale on the latch plate as a reference.) Scale Latch plate Screws Figure 11-205a (rear left of compartment) 11-7 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 539 Adjusting the Rear Margin (right margin) Select ‘R-BLANK’ in service mode ( ), and change the setting. Increasing the setting increases the rear margin. (unit: 0.1 mm) 11-8 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 540 • The scanning lamp turns on, and automatic adjustment is executed. AE_ADJ: 0 ( : START) Changes to ‘0’. 8) Press the Reset key twice to end service mode. 11-9 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 541 Copies of a newspaper will be darker. Note: You may press the Copy Start key to make copies. 6) Press the Reset key twice to end service mode. 11-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 542: B. Exposure System
Electrode (front) No. 1 mirror mount Section A of left of wall Glass support (front) Hole Figure 11-208 11-11 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 543 ), and adjust the tension of the cable and the position of the mirror. Steel ball Wind eight times. Fix in place temporaily. Figure 11-209 11-12 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 544 ±50 g when the center of the scanner cable is pulled about 10 mm. (rear) 10 mm 10 mm (front) Figure 11-211 11-13 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 545 1) Move the No. 1 mirror mount and the No. 2/No. 3 mirror to the left. 2) Set the mirror positioning tool (front, rear; FY9-3011) as shown. Figure 11-212 Figure 11-213 11-14 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 546 Figure 11-214 7. Routing the Light-Blocking Belt Light-blocking belt 1 Light-blocking belt 3 Light-blocking belt 2 Light-blocking belt 4 Figure 11-215 11-15 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 547 (10.5 ±0.5 mm; from bottom of clamp to top of solenoid) Loosen these two screws to adjust. Scanner locking solenoid Figure 11-217 11-16 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 548: C. Image Formation System
To form a loop, wind the charging wire around a hex key three to four times, and twist the charging wire. 5) Cut the twisted charging wire (excess) with a nipper. 11-17 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 549 Take care to avoid deformation (slack) of the charging assembly. Try to tighten the mounting screw (front) on the shielding plate (left, right) earlier. 11-18 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 551 6) If the non-image width is not as specified, turn the adjusting screw to adjust the position of the blanking exposure lamp assembly. Adjusting screw Figure 11-222 11-20 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 552: Position Of The Roller Electrode
5. Adjusting the Position of the Cleaning Assembly Side Seal Side seal Be sure that the side seal does not protrude inside the cleaner housing. Figure 11-224 11-21 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 553 Remove waste toner collecting here. Figure 11-225 (rear) Remove waste toner collecting here. 4~8mm (front) Toner guide roller Magnet roller Side scraper (front) Figure 11-225a (front) 11-22 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 554 4) Turn the magnet roller clockwise (viewing it from the front). 5) When the area cleaned in step 3) has taken on a new coating, repeat steps 3) through 5). 11-23 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 555: D. Pick-Up/Feeding System
(silver) faces the rear. Direction of rotation Rear Collar (silver) Figure 11-226a 11-24 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 556 When installing the feeding roller to the feeding roller shaft , be sure that the marking “5” faces the front. Front Figure 11-228 11-25 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 557 (gold) face the rear. Direction of rotation Rear (copier) Collar (gold) Pick-up roller Marking (roller) Marking (collar) Figure 11-229a 11-26 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 558 When installing the feeding roller to the feeding roller shaft , make sure that the marking “5” faces the rear. Front Figure 11-230a 11-27 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 559 If pick-up failure occurs, move the spring in the direction of arrow A. Feeding roller Locking lever Separation roller Pressure spring Figure 11-231 11-28 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 560 If double feeding occurs, move the spring in the direction of arrow A. • If pick-up failure occurs, move the spring in the direction of B. Figure 11-233 11-29 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 561 36 ±0.5 mm when the plunger of the pick-up roller releasing solenoid is pulled as shown. Figure 11-234 11-30 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 562 If you are installing the solenoid on its own, be sure to fix it in its initial position. Figure 11-234b 11-31 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 563 Slide the solenoid in the direction of A so that the gap between the shutter the shutter plate is 0.4 ±0.2 mm when the solenoid is pulled. Figure 11-235 Figure 11-235a 11-32 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 564 A, push the delivery deflecting plate drive solenoid B in the direction of arrow B, and tighten the mounting screw Figure 11-237 11-33 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 565 Mark the position of the side guide plate with a pencil in advance, and install it with reference to the marking. Figure 11-239 11-34 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 566 Butt the rack plate of the paper jogging guide plate against section A (open state). Then, attach the timing belt to the pulley. Figure 11-241 11-35 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 567 Route the drive belt on the pulley and the roller as shown. Drum drive belt Main motor Registration feeding Fixing/waste toner drive belt drive belt Figure 11-243 11-36 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 568 (inside when viewing form the rear) and to attach the pick-up drive belt on the pulley at the top (outside when viewing from the rear). 11-37 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 569: E. Fixing System
To adjust the height of the inlet guide, loosen the fixing screw on the height adjusting support plate. Make checks by removing the lower roller. 11-38 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 570 If you should have loosened it, be sure to adjust it to its initial position with reference to the scale on the fixing assembly mount. 11-39 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 571 4) Press the user mode key ]. • A3 copy paper is picked up and discharged as shown in Figure 11-246 ready for measurement. 11-40 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 572 41T gear and the control ring is 0.1 to 0.3 mm (about 4 sheets of plain paper 64 g/m Figure 11-247 11-41 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 573: F. Electrical System
2) Check to make sure that the indication on the display is as follows: NIP : 0 ( : START) PO_CONT : 0 ( : START) Changes to ‘1’. 11-42 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 574 Method 1 enables you to check the lever shift circuit on the DC controller, while method 2 enables you to check the potential measurement circuit. 11-43 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 575 When setting the checking electrode to the potential sensor, make sure that the magnet of the checking electrode will not touch the potential sensor cover. 11-44 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 576 9) Turn off the power switch. 10) Remove the potential sensor checking electrode. 11) Install the blanking exposure lamp assembly. 12) Turn on the power switch. 11-45 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 578 Checking the Potential System <Transfer Output> <Scanning Lamp Output> START Select non-potential mode. ( Select potential control mode. 'PO.CONT' '1') Is the ; 'PO.CONT' '0') toner image on the photosensitive drum before transfer normal? Turn on the power switch. Has the image improved? Select non-potential control mode.
Page 579 <Primary Output> <Developing Bias Output> Select the primary power supply Select potential control.( limit notation. ( ; 'PLMT') 'PO.CONT' '0') Select Direct mode and 'GLEAM-5' in service mode ( Measure the voltage during Is 'PLMY' '1'? copying between J114A-2 and A- 13 on the DC controller PCB.
Page 580 –55 –1 4.40 1,155 –57 –5 4.45 1,146 –59 –8 4.50 1,137 –61 –12 4.55 –63 –16 1,128 4.60 1,120 –66 –20 11-49 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 581 –121 6.00 –123 –125 6.05 –125 –128 6.10 –127 –132 6.15 –129 –136 6.20 –132 –140 6.25 –134 –143 6.30 –136 –147 11-50 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 582 –248 7.70 –193 –252 7.75 –195 –256 7.80 –198 –260 7.85 –200 –263 7.90 –202 –267 7.95 –204 –271 8.00 –206 –275 11-51 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 583 –376 9.40 –264 –380 9.45 –266 –383 9.50 –268 –387 9.55 –270 –391 –272 9.60 –395 –274 9.65 –398 –276 9.70 –402 11-52 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 584 –473 10.70 –317 –477 10.75 –319 –481 10.80 –321 –485 10.85 –323 –488 10.90 –325 –492 10.95 –327 –496 11.00 –330 –500 11-53 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 585 The environment sensor jig (FY9-3014) is adjusted to high precision at the factory. Be sure to keep it in an air-tight case with a drying agent for storage. 11-54 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 586 Caution: The machine’s motors may start to operate when you turn on or off the sensors; exercise extra caution. 11-55 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 587 Holding tray P002-03 detecting When paper is feeding assembly lever removed. 2 paper sensor assembly of PS9 while in standby. 11-56 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 588 When paper is in the inserted. Holding tray P005-09 detecting pick-up sensor When paper is not lever inserted. assembly of PS17 while in standby. 11-57 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 589 Pick-up vertical P002-00 lever by PS24. path 0 sensor hand while When the light- in standby. blocking plate is not at PS24. 11-58 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 590 Right deck lifter P005-08 lever by PS31. position sensor hand while When the light- in standby. blocking plate is not at PS31. 11-59 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 591 Right deck P007-04 lever by PS38. open/closed hand while sensor When the light- in standby. blocking plate is not at PS38. 11-60 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 592 Scanner locked P009-03 lever by PS48. sensor hand while When the light- in standby. blocking plate is not at PS48. 11-61 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 594 Perform the steps shown for the cassette 3 and 4; however, you must perform them for A6R, A4R, and A4. Guide Paper Guide Figure 11-250 11-63 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 595: A. Initial Checks
• If the original is a diazo copy or has an appreciable transparency, copies can be mistaken for “foggy” copies. • If the original is made in light pencil, the copies can be mistaken for “light” copies. 11-64 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 596 6. Checking the Paper a. Check to make sure that the paper is of a type recommended by Canon. b. Check to make sure that the paper is not moist. Try copy paper fresh out of package.
Page 597 If the copy has an uneven density (between front) or is too light or foggy, perform the “Image Adjustment Basic Procedure” before consulting the troubleshooting tables. 11-66 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 599: B. Sample Image Faults
CHAPTER 11 TROUBLESHOOTING B. Sample Image Faults not available 11-68 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 600: C. Troubleshooting Image Faults
Lamp regulator Replace the lamp regulator. Is the End. problem corrected? DC controller Replace the DC controller PCB. 11-69 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 601 2. Advise the user that the use of paper not recommended by Canon may not bring the best results. Cont’d 11-70 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 602 ). Are the readings of ‘VDM’ photosensitive drum. and ‘VL1M’ the target value (VDT, Developing bias Check the developing VL1T) ±10V? control bias control system. 11-71 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 603 Charging 1. Clean all charging assembly, Copy wires once again, and paper check their height. 2. Try replacing copy paper. 11-72 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 604 DC controller PCB controller PCB. Developing and the high-voltage assembly transformer; if normal, replace the high- voltage transformer. 2. Check the developing assembly. 11-73 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 605 Fixing assem- Check the fixing bly, Cleaner assembly and the assembly cleaner assembly. 11-74 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 606 3. Check the reciprocat- ing mechanism of the thermistor and the separation claw. Check the inlet of the fixing assembly for dirt. 11-75 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 608 DC controller PCB. External light Check the photosensitive drum to see if it should not be exposed to external light. 11-77 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 609 Charging wire, Are there scratches on the surface Clean the charging Photosensitive of the photosensitive drum? assembly. drum Replace the photosensitive drum. 11-78 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 610 2. Clean the upper roller and the lower roller. 3. Clean the fixing assembly inlet guide. Delivery Clean the delivery roller assembly and the separation claws. 11-79 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 611 Canon. If the results are good, advise the user to use recommended paper. Check the upper roller Upper fixing for peeling. 11-80 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 612 24 to 0 V and wear. instantaneously while the scanner Replace the DC DC controller is moving forward? controller PCB. 11-81 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 613 Does the problem occur at Check the cleaner assembly gear intervals of about 6 mm? assembly. Drum drive Check the drum drive system system. 11-82 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 614 Photosensitive Replace the photosensitive drum. End. drum Is the problem corrected? Lens drive Check the operation of assembly the lens drive assembly. 11-83 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 615 22. The copy is solid black. Cause Step Checks YES/NO Action Does the scanning lamp remain See “The scanning lamp ON during copying? fails to turn on.” 11-84 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 616: A. Troubleshooting Malfunctions
Install the thermistor with the upper fixing roller? correctly. Thermistor Clean the contact area of the ther- End. mistor. Is the problem corrected? Cont’d 11-85 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 617 DC controller Check the wiring from the AC drive to the DC controller; if normal, replace the DC controller PCB. 11-86 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 618 AC driver Replace the AC driver. Is the End. problem corrected? DC controller Replace the DC controller PCB. 11-87 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 619 5 V when the Copy Start key is pressed? Main motor Replace the main motor. Is the End. (M1) problem corrected? 11-88 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 620 Does the harness of the vertical Replace the clutch vertical path path roller drive clutch have an (SL15). roller drive open circuit? clutch (CL15) 11-89 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 621 DC controller PCB. Pick-up motor Replace the pick-up motor (M2). End. (M2) Is the problem corrected? 11-90 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 623 J104A-6 (–) on the DC controller PCB. Does it change from about 24 V to about 0 V and then to about 24 V? 11-92 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 624 DC controller Check the harness from the DC controller PCB to the motor; if normal, replace the DC controller PCB. 11-93 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 625 Holding tray Replace the holding tray driver End. driver PCB PCB. Is the problem corrected? DC controller Replace the DC controller PCB. 11-94 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 626 (See the instructions on how to PS3/4; if normal, replace 1/2 (PS3/4) check the photointerrupters.) PS3/4. DC controller Replace the DC controller PCB. 11-95 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 627 Checks YES/NO Action DC controller Turn on and off the power switch. End. Is the problem corrected? Replace the DC controller PCB. 11-96 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 628 PCB. connected? Sorter controller Replace the sorter controller PCB. End. Is the problem corrected? DC controller Replace the DC controller PCB. 11-97 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 629 Check the wiring and unit electrical continuity from the DC controller to the power switch (SW1); if normal, replace the DC controller PCB. 11-98 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 630: Ac Power Is Absent
Check the wiring of the when the switch is turned on AC power supply line. when turned off? Check the connectors for poor contact. 11-99 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 631: Dc Power Supply Is Absent
+10%,-7% J309 24VU2 +10%,-7% 24VA2 +10%,-7% J311 38VU +10%,-7% However, the above assumes that the inaccuracy of the AC input is ±10%. 11-100 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 632 24 to 0 V when the clutch (CL14, the clutch; if normal, Copy Start key is pressed? right deck; replace the clutch. Cl16, left deck) 11-101 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 633 0 to 24 V when the DC controller Replace the DC deck is slid into the machine? controller PCB. 11-102 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 634 Does the feeding/separation roller rotate when the Copy Start key is pressed? Cont’d 11-103 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 635 ‘B-JAM’ in service mode ( the sensor. ). Is the sensor normal? Pick-up Remove the pick-up assembly assembly, and check the spring. 11-104 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 636 DC controller Replace the DC the voltage change from about 0 controller PCB. to 24 V when the cassette is slid M14:J119A-9 M15:J119A-11 11-105 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 637: Pick-Up Fails. (Multifeeder)
Replace the DC DC controller to 24 V and then to 0 V when the controller PCB. Copy Start key is pressed? 11-106 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 638: The Vertical Path Roller Fails To Rotate
5. Does the voltage change from about 24 to 0 V as soon as the DC controller Replace the DC registration roller starts to rotate? controller PCB. 11-107 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 639 DC controller PCB to change to about 5 V when the the scanner motor; if scanner stops moving forward? normal, replace the scanner motor. 11-108 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 640 24 to 0 V when the Copy lamp PCB the DC controller PCB to Start key is pressed? the pre-exposure lamp PCB; if normal, replace the pre-exposure lamp. 11-109 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 642 PCB change from 24 to about 0 J770, J719 Is the connection of relay connec- Connect the connectors tors J770 and J719 secure? correctly. 11-111 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 643 Drum heater Replace the drum heater probes are connected to both controller PCB controller PCB. terminals of the heater? 11-112 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 644: The Lens Fails To Move
J110A-3 J110A-5 J110A-3 Y motor J110A-10 J110A-11 about 135 (M5) J110A-13 J110A-14 J110A-10 J110A-12 J110A-11 J110A-12 about 48 J110A-13 J110A-12 J110A-14 J110A-12 11-113 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 645 ‘0’ (toner absent)? DC controller 1. Replace the DC PCB/Control controller PCB. panel 2. Replace the control panel. 11-114 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 646 Or, have a missing tooth? replace the lifter motor and the cassette pick-up assembly at the same time. 11-115 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 647 PCB indicated in the table 5 V? DC controller Replace the DC controller PCB. Heater (–) Main heater (H1) J102B-5 J102B-1 Sub heater (H2) J102B-3 J102B-1 11-116 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 648: Pick-Up Fails. (Paper Deck-A)
24 to 0 V when the vertical path clutch; if normal, replace Copy Start key is pressed? clutch (CL102, the clutch. pick-up; CL101, vertical path) 11-117 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 649 DC controller Replace the DC follows? controller PCB. when the deck is closed, 0 V when the deck is opened, 5 V 11-118 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 650: A. Copy Paper Jams
You can check the location and the type of jam using ‘B_JAM’ in service mode ; eight most recent jams). Figure 11-501 11-119 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 651: Pick-Up Assembly
Pick-up roller Is the pick-up roller deformed or Replace the pick-up worn? roller. Guide plate Check the guide plate for deformation. 11-120 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 652 Are the two feeding belts moving Check the belt and the normally? pulley. Feeding fan Check the feeding fan to see if it is operating normally. 11-121 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 653: Fixing/Delivery Assembly
Holding tray revers- Does the holding tray inlet roller Replace the holding tray ing clutch (CL4) rotate at the correct timing? reversing clutch (CL4). 11-122 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 654: Cleaning Assembly
Holding tray Is the holding tray inlet paper Replace the sensor inlet paper sensor (PS15) normal? (PS15). sensor (PS15) 11-123 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 655 DC controller PCB to (CL4) the holding tray reversing clutch (CL4); if normal, replace the clutch (CL4). 11-124 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 656 (PS8), assembly 2 paper sensor (PS9) Holding tray normal? feeding assem- bly 2 paper sensor (PS9) 11-125 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 657: B. Feeding Faults
Is the lower roller pressure (nip) Adjust it. as specified? Upper/lower Try replacing the upper roller and lower rollers one after the other. 11-126 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 659: A. Sensors
PS42 PS30 PS26 PS50 PS28 PS29 PS51 PS23 PS52 PS11 PS47 PS53 PS10 PS12 PS19 PS21 PS14 PS20 PS17 PS15 Figure 11-601 11-128 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 660 Cassette 4 paper length detection SVR1 Multifeeder paper width detection SVR2 Cassette 3 paper width detection SVR3 Cassette 4 paper width detection Table 11-601 11-129 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 661 CHAPTER 11 TROUBLESHOOTING PS37 PS32 PS31 PS49 PS38 PS39 PS34 PS35 PS40 Figure 11-602 11-130 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 662 Right deck open/closed detection PS39 Left deck lifter limit detection PS40 Left deck open/closed detection PS49 Left deck pick-up assembly outlet paper detection Table 11-602 11-131 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 663 CHAPTER 11 TROUBLESHOOTING B. Swithes and Solenoids SL10 SL15 SL2 SW2 MSW5 SL14 MSW4 SL13 SL11 SL12 Figure 11-603 11-132 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 664 Fixing assembly inlet guide drive Microswitch/switch MSW4 Waste toner feeding screw locked detection MSW5 Multifeeder door switch Power switch Door switch Drum heater switch Table 11-603 11-133 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 666 CHAPTER 11 TROUBLESHOOTING Symbol Name Notation Function Solenoid Right deck pick-up roller release Left deck pick-up roller release Table 11-604 11-135 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 668 Hopper motor (toner stirring) Primary charging wire cleaning motor Pre-transfer charging wire cleaning motor Cassette 3 lifter motor Cassette 4 lifter motor Table 11-605 11-137 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 669: D. Clutches
Vertical path roller 4 drive CL15 Vertical path roller 1 drive CL17 Vertical path roller 2 drive CL18 Vertical path roller 0 drive Table 11-606 11-138 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 670 Notation Function Motor Right deck lifter drive Left deck lifter drive Clutch CL14 Right deck pick-up CL16 Left deck pick-up Table 11-607 11-139 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 671 CHAPTER 11 TROUBLESHOOTING E. Lamps, Heaters, and Photosensors MFSVR CNT2 CNT1 THHUM1 Figure 11-608 11-140 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 672 Developing assembly toner sensor Varistor Varistor Thermal switch Fixing heater thermal switch Thermal fuse Scanning lamp thermal fuse Drum heater thermal fuse Table 11-608 11-141 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 674 AC circuit control Lamp regulator PCB Scanning lamp control DC power supply PCB DC power supply Service switch PCB Service mode switching Table 11-609 11-143 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 675: G. Paper Deck-A
G. Paper Deck-A1 1. Sensors and Switches Q105 Q110 Q108 SW100 Q106 Q102 Q103 SW102 Q107 SW103 Q104 Figure 11-610a (paper deck-A1) 11-144 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 676 Switches SW100 Deck open switch Microswitch SW102 Deck open detecting switch SW103 Deck lifter lower limit detecting switch Table 11-610a (paper deck-A1) 11-145 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 677 CHAPTER 11 TROUBLESHOOTING 2. Motors, Clutches, Solenoids, and PCBs SL101 CL101 CL102 M101 SL102 M102 Figure 11-610b (paper deck-A1) 11-146 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 678 Solenoid SL101 Deck pick-up roller releasing solenoid SL102 Deck open solenoid Side deck driver PCB Open switch PCB Table 11-610b (paper deck-A1) 11-147 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 679: Check Pins By Pcb
J126 J102 J2002 J123 J128 J116 J101 A1 A12 J117 J118 J119 J121 J122 B13 B1 B15 B1 B15 B1 Figure 11-611 11-148 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 680 LTR 11" 17" LGL 11" 17" 121.4% 100% 100.0% LGL LTR 78.6% LGL 11" 17" 73.3% 11" 17" LTR 64.7% 50.0% Table 11-613 11-149 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 681 A3 A4/LTR, B4 B5 70.7% 50.0% Table 11-615 Connector Description J123 For factory J125 For factory J126 For factory J129 For factory Table 11-616 11-150 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 682: Ac Driver Pcb
J644 J642 J641 J645 Figure 11-612 3. DC Power Supply PCB J311 J305 J304 J306 J303 J301 J309 J308 J302 Figure 11-613 11-151 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 683: Control Cpu Pcb
CHAPTER 11 TROUBLESHOOTING 4. Control CPU PCB J923 J911 J915 J916 J913 J912 J920 J919 Figure 11-614 11-152 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 684: Holding Tray Driver Pcb
CHAPTER 11 TROUBLESHOOTING 5. Holding Tray Driver PCB J201 J203 J202 J204 J205 J210 J209 J208 J207 J206 Figure 11-615 11-153 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 685: Potential Measurement Pcb
LED1 Figure 11-616 Description For factory For factory Table 11-617 Description LED1 ON while drum surface potential is being measured. Table 11-618 11-154 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 686: Hvt1 Pcb
CHAPTER 11 TROUBLESHOOTING 7. HVT1 PCB J301 J403 VR201 J203 J201 J202 Figure 11-617 Description VR201 For factory Table 11-619 11-155 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 687: Hvt2 Pcb
CHAPTER 11 TROUBLESHOOTING 8. HVT2 PCB J501 T502 J404 J402 J401 T501 Figure 11-618 9. Inverter PCB J956 J955 Figure 11-619 11-156 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 688: Lamp Regulator Pcb
Assumes that the sub counter is a two-sided copy counter. Assumes that the sub counter is a large-size copy counter. Table 11-620 11-157 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 690: Vii. Service Mode
When you have selected a mode, you will find a specific page reference number in the upper right corner of the display. 11-159 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 691: B. Using Service Mode
RAM on the control PCB. By the same token, you must record any new values you entered in the field on this label. 11-160 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 692 LTR_PSZ SEP_DUP LTRR_PSZ SEP_OVL STMT_PSZ C1_STMTR A3_PSZ C1_A4R A4_PSZ C2_STMTR A4R_PSZ C2_A4R A5_PSZ C3_STMTR B4_PSZ B5_PSZ C3_A4R C4_STMTR B5R_PSZ C4_A4R Table 11-702 11-161 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 693 Indicates ‘1’ when the activation voltage of the 0: normal scanning lamp has reached the upper limit; ‘2’ when it 1: error has reached the lower limit. 2: error 11-162 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 694 (Unless you execute wire cleaning, the associated operation is prohibited and the machine will not be reset even when the machine is turned off and on.) 11-163 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 695 Indicates the VD (dark area potential) target value. Unit: V Indicates the VD (dark area potential) measured Unit: V value. 11-164 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 696 Indicates the current value of the separation charging assembly. BIAS Indicates the DC value of the developing bias. • Indicates ‘0’ when the HVT unit turns off. 11-165 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 697 Indicates the output of the original size sensor 2. DCMET-3 Indicates the output of the original size sensor 3. DCMET-4 Indicates the output of the original size sensor 4. 11-166 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 698 *2: For ‘B-ER’, the four bits to the right of 1–3 remain ‘0000’, and no E code is indicated. *3: For ‘B-JAM’, JAM associated with the RDF is limited to ‘0700’. For details, see the next screen (DF- JAM). 11-167 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 699 *3: For example, if ‘E530’ is detected, S-ERR: 3000 0000 ‘5’ of ‘E530’ represents the sorter, and is omitted in S-ERR notation. ‘E500’ cannot be indicated. 11-168 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 700 Feeding stationary jam Power-on jam Door open jam (copy paper being fed) Door open jam (during stapling) Bin outside sensor jam Table 11-704 11-169 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 701 Remove all sheets from the bins. Bin inside paper Remove all sheets from the bins. Staple absent Set a new cartridge. Table 11-706 11-170 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 702 (S1), and open and close the RDF. composition mode Operation mode error Stops Turns on and off the original sensor (S1). Table 11-707 11-171 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 703 Right pick-up is executed. The original leaves S15 trailing edge and S16 with a discrepancy of 15 mm or more in skew timing. Table 11-708 11-172 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 704 If E402, E43, E406, and E408 are detected in sequence, an error will not be identified, as each has merely been detected no more than once. Table 11-709 11-173 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 705 The count returns to ‘0’ when the power is turned off and then on again. Table 11-710 11-174 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 706 70:Finnish 20:English 80:Italian R&D number (20:North America; 21:UK) 90:Norwegian Version number 30:French A0:Portuguese Language* 40:German B0:Spanish Model (for Canon: 01) 50:Danish C0:Swedish 11-175 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 707 *2 *1: On the touch panel, Row number (00 to 19; in hexadecimal) Column number (00 to 15; in hexadecimal) 11-176 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 708 DOC,STSI: X X X X 1 0 3 2 Original Original detection detection circuit 0 circuit 1 Original detection circuit 2 Original detection circuit 3 11-177 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 709 4. WIDE : paper width sensor output (analog) : paper length sensor output (0/1) SIZE : paper width (mm) 11-178 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 710 Convert the bit data into hexadecimal data when making in terms of analog data (for example, address P023 photosensitive drum potential signal). 11-179 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 711 CL17 CL17D J121B-8 1: ON clutch rive signal Right deck pick-up roller P000-15 SL04 RDPURR J116A-10 1: ON releasing solenoid drive signal 11-180 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 712 Fixing assembly inlet guide SL16 FXGUSD J108B-14 1: ON drive signal P001-14 Wire cleaning motor HP — signal P001-15 Size detection drive J110B-4/ -7/-10 11-181 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 713 Original size 3 A detection DSZ3A J110B-12 0: original signal present P002-14 Original size 3 B detection DSZ3B J110B-11 0: original signal present Not used P002-15 11-182 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 714 0: ON P003-14 Fixing main heater drive MHRD J102B-5 0: ON signal Fixing sub heater drive P003-15 SHRD J102B-3 0: ON signal 11-183 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 715 FT prohibit signal PWOFF J112B-1 1: ON P004-13 Not used P004-14 Internal signal (tray X shift start) P004-15 Internal signal (tray Y shift start) 11-184 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 716 J102A-6 signal 0: ON P005-14 Control card detection signal CCNNT J106B-2 1: card present Internal signal (encoder P005-15 error detection) 1: error 11-185 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 717 Holding tray forward clutch CL05 HTFWCD J113A-7 1: ON drive signal P006-15 Holding tray reversing clutch CL04 HTRVCD J113A-6 1: ON drive signal 11-186 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 718 Right deck lifter position PS31 RDLTP J116A-4 1: pick-up sensor signal position P007-15 Left deck lifter position PS34 LDLTP J121A-7 1: pick-up sensor signal position 11-187 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 719 Internal signal (power supply switch open circuit detection) P008-14 Internal signal (total copy counter open circuit detection) P008-15 Internal signal (accessory counter open circuit detection) 11-188 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 720 Power supply unit internal RL401 RL401D J102A-5 1: ON relay drive signal P010-04 Not used P010-05 Not used P010-06 Not used P010-07 Not used 11-189 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 721 Internal signal (key return) J125-9 P017-05 Internal signal (key return) J125-10 P017-06 Internal signal (key return) J125-11 P017-07 Internal signal (key return) J125-12 11-190 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 722 (analog) P024 Cassette 3 paper width SVR2 C3PW J117B-10 signal P025 Cassette 4 paper width SVR3 C4PW J117A-12 signal P026 Not used 11-191 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 723 Re-circulating motor (M4) RCMD 0: ON drive signal P029-03 Not used P029-04 Not used P029-05 Not used P029-06 Not used P029-07 Not used 11-192 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 724 1: CW rotation P032-06 Pick-up motor (M1) rotation 1: ON speed control signal P032-07 Pick-up motor (M1) CCW 1: CCW rotation rotation signal 11-193 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 725 1: closed (S31) P038-06 Manual feed et detection MFST 1: paper signal (S32) detection P038-07 Sub try detection signal 1: closed (S28) 11-194 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 726 Matrix digit 3 signal P041-04 Matrix common 0 signal P041-05 Matrix common 1 signal P041-06 Matrix common 2 signal P041-07 Matrix common 3 signal 11-195 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 727 AE sensor LED offset DA signal P053 Original sensor (S1) DA signal P054 Registration sensor (S3) DA signal P055 Skew sensor (S4) DA signal 11-196 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 728 (S32) DA signal P058 Original sensor 2 (S27) DA signal P059 Not used P060 Original detection VA Hexadecimal resistance (VR1) (4 digits) 11-197 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 729 Multi guide drive motor MGMA 1: ON control signal 1 (M5) P063-07 Multi guide drive motor MGMB 1: ON control signal 1 (M5) 11-198 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 730 P065-06 Stapler motor (M2) CCW SPMCCW 1: ON rotation signal P065-07 Stapler motor (M2) CW SPMCW 1: ON rotation signal 11-199 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 731 Matrix digit output signal 4 P071-05 Matrix SEG output signal 0 P071-06 Matrix SEG output signal 1 P071-07 Matrix SEG output signal 2 11-200 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 732 P074-02 Not used P074-03 Not used P074-04 Not used P074-05 Not used P074-06 Not used P074-07 Not used 11-201 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 733 DIP switch 1-1 detection 1: ON signal P076-04 Joint signal (PI1) JNTS 1: connected to copier P076-05 Not used P076-06 Not used P076-07 Not used 11-202 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 734 0: S-order PCB P079-04 Front door open internal DROPN 1: door closed signal P079-05 Not used P079-06 Not used P079-07 Not used 11-203 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 735 Stapler internal paper sensor (S5) D/A output P089-00~07 Swing motor current (M4) D/A output P090-00~07 Staple unit shift motor current (M3) D/A output 11-204 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 736 Bin paper light adjustment (S4) D/A output P094-00~07 Push bar drive motor current (M7) P095-00~07 Bin paper sensor 2 light adjustment (S7) D/A output 11-205 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 737 Bin shift clock sensor 0: connector off connector detection P064-05 Guide bar HP sensor 0: connector off connector detection P064-06 Not used P064-07 Not used 11-206 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 738 P067-05 Not used P067-06 Paper retaining plate PHSLD 1: ON solenoid drive signal P067-07 Bin shift motor UP signal BMUP 0: UP 11-207 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 739 P070-04 Sort sensor 1: paper present P070-05 Non sort sensor 1: paper present P070-06 Not used P070-07 Not used Hereafter Not used 11-208 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 740 J113A-13 A) signal P098-06 Holding tray Y motor (phase M08B J113A-11 B) signal P098-07 Holding tray X motor hold M09HLD J113B-3 signal 11-209 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 741 M05ACM J110A-12 M05BCM J110A-15 P101-02 Not used P101-03 Not used P101-04 Not used P101-05 Not used P101-06 Not used P101-07 Not used 11-210 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 742 (Holding tray Y shift start) P105-01 Not used P105-02 Not used P105-03 Not used P105-04 Not used P105-05 Not used P105-06 Not used P105-07 Not used 11-211 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 743 Digit 2 input P120-03 Digit 2 input P120-04 Digit 2 input P120-05 Digit 2 input P120-06 Digit 2 input P120-07 Digit 2 input 11-212 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 744 P123-06 Deck open detection signal SW102 DOPD J2001A-3 0: open Q110 P123-07 Deck lifter position detection DLPD J2001A-4 1: pick-up signal position 11-213 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 745 DMBRK J2001B-5 1: brake signal P124-05 Not used P124-06 Deck open solenoid drive SL102 DOPSD J2001B-6 0: ON signal P124-07 Not used 11-214 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 746: F. Adjustment Mode
GLEAM-5 Use it to adjust the degree of optimum 53~139 A higher setting exposure. decreases the copy density. 11-215 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 747 A higher setting delays used during copying (registration). the timing at which the registration roller turns on (decreasing the leading edge margin). Unit: 0.1 mm 11-216 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 748 Use it to adjust the trailing edge non- –100~100 A higher setting image width (blank exposure activation decreases the trailing period). edge non-image width. 11-217 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 749 (It is pre- adjusted at the factory; enter the value recorded on the label if you have replaced the DC controller PCB.) 11-218 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 750 (It is pre-adjusted at the factory; enter the value recorded on the service label if you have replaced the DC controller PCB.) 11-219 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 751 (It is pre-adjusted at the factory; enter the value on the service label if you have replaced the DC controller PCB.) 11-220 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 752 3. C2-A4R Use it to fine adjust or enter the paper 000~255 100V model only. width basic value (A4R) for the cassette 11-221 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 753 (STMTR) for the cassette 4. C4-A4R Use it to fine-adjust or enter the paper 000~255 width basic value (A4R) for the cassette 11-222 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 754 (A4R) for the multifeeder. MF-A4 Use it to fine-adjust or enter the paper 000~255 width basic value (A4) for the multifeeder. 11-223 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 755 3000 m) potential control. 2: 0.70 to 0.65 atm (up to altitude of from 3000 to 3500 m) 11-224 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 756 RDF may be made using the copier: a press on the DIP switch for the RDF corresponds to a change in the settings in service mode. 11-225 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 757 Use it to adjust the RDF newspaper –1023~ A higher setting makes original intensity (right pick-up in AE 1023 the slope steep. mode). 11-226 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 758 3. These items relate to SW1 on the RDF controller PCB; pick-up and delivery settings will be by the user mode key (*) on the copier's control panel. 11-227 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 759 (shifting the copy up mode in relation to left pick-up image to the rear). mode). Unit:0.1 mm 11-228 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 760 (A negative value up is from the duplexing unit or in decreases the swing two-sided/overlay copying. distance.) 11-229 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 761 (A negative value up is from the duplexing unit or in decreases the swing two-sided/overlay copying. distance.) 11-230 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 762 (A negative value up is from the duplexing unit or in decreases the swing two-sided/overlay copying. distance.) 11-231 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 763 (A negative value up is from the duplexing unit or in decreases the swing two-sided/overlay copying. distance.) 11-232 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 764 * key. If the developing assembly has been installed, press the OK key on the touch panel, and then press the * key. 11-233 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 765 E013, E020, jam history, error history, sorter jam, RDF jam, or alarm history. However, initializing E000 or the like will not initialize the jam history. 11-234 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 766 Energy Saver (Pre-Heat) key, Interrupt key, Additonal Functions (User Mode) key, Guide key and pilot lamp will turn on and off in sequence. 11-235 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 767 3 sec. BK-ROT Use it to turn on the developing cylinder. The cylinder operates for about 2 min. 11-236 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 768 Use it to execute density measurement level automatic adjustment for AE mode. If ‘0’ is indicated, set an F5 original. If ‘1’ is indicated, set an F9 original. 11-237 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 770 * Slide out each cassette, and adjust the paper width guide plate inside the cassette to the appropriate size; then, slide in the cassette. Thereafter, select the item on the screen to execute. 11-239 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 771 * Slide out each cassette, and adjust the paper width guide plate inside the cassette to the appropriate size; then, slide in the cassette. Thereafter, select the item on the screen to execute. 11-240 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 772 Thereafter, select the item on the screen to execute. (reference) A4/A3 STMT-R STMT-R (139.7mm) (210mm) (297mm) Paper width Figure 11-701 11-241 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 773 LEDs 1, 2, and 3 on the RDF controller PCB (flashing in sequence or simultaneously). 11-242 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 774 RAM-INIT Use it to initialize the RAM on the DC controller After initialization, the PCB. screen changes to the Copying Standard screen. 11-243 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 775: H. Options Mode
Use it to change the notation for the control card 0: control card indicated on the control panel between coin or copy 1: coin card. 2: copy card 11-244 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 776 9 of mode memory: copying mode used second immediately thereafter. 1–6 of mode memory: used as regular mode memory functions. 11-245 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 777 CHAPTER 11 TROUBLESHOOTING Screen 5-3 Item Description Remarks M-NOTATI Use it to change the paper size choices for the multifeeder. 11-246 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 778 AB and Inch originals (detec- 1: enable tion for a AB/Inch mix; e.g., A4 and LTR originals). 11-247 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 779 Use it to select the paper notation if universal cassette notation (U-NOTGARI) is set to ‘1’. 0: LTR (indicated as LTR) 1: A LTR (indicated as LTR) 11-248 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 780 Use it to lower the fixing temperature. 0: normal control 1: normal control –5°C 2: normal control –10°C 3: normal control –15°C 4: normal control –20°C 11-249 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 781 Use it to enable or disable messages (always or 0: only in service mode only when in service mode; Add Fixing Cleaning 1: always Belt and Waste Toner Full). 11-250 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 782 Use it as a temporary remedy until replacement of the environment sensor. F-HUM-D Enter an approximate humidity of the site (between Factory default : 35 30% and 99%). 11-251 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 783 Use it to enable or disable potential control for the 0: ON first copying operation at power-on, after 10 min, 1: OFF and after 60 min. 11-252 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 784: I. Counter Mode
'00000000'. L-CST4 Large size copy counter for cassette 4 (300 mm After '99999999', long or more; or, non-default size) returns to '00000000'. 11-253 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 785 '00000000'. L-DF Large size original feed counter (300 mm long or After '99999999', more; or, non-default size) returns to '00000000'. 11-254 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 786 300 mm long; or, non-default size) returns to '00000000'. S-SDK Copy counter for paper deck-A1 (less than 300 mm After '99999999', long) returns to '00000000'. 11-255 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 787 300 mm long; or, non-default size) returns to '00000000'. S-DF Small size original feed counter (less than 300 mm After '99999999', long) returns to '00000000'. 11-256 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 788 *Like the RDF’s separation pad, some parts need replacement based on the number of copies made according to pick-up direction (left or right). 11-257 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 789 • 1st side of an overlay/two-sided copy when the sheet is stacked on the holding tray • when the original is pulled in and its size is identified 11-258 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 790: Viii. Self Diagnosis
• Connector for fixing assembly (fault; • The fixing feeding assembly E006 rear) became disconnected during • DC controller PCB (fault) copying. 11-259 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 791 • While the holding tray X motor (M8) drive signal is being generated, the holding tray X home position signal (HTXHP) is generated for 2 sec or more. 11-260 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 792 • DC controller PCB (fault) Copy Start key is turned on. • The lens Y home position signal (LYHP) is generated for 2 sec or more. 11-261 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 793 • The communication control IC on E713 • Connector (poor connection) the sorter controller PCB goes out • 24V power supply of order. 11-262 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 794 2. For E015, E202, and E204, you can make checks in reference to B-ERR1, B- ERR2, and B-ERR3 in service mode ( 11-263 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 795 (S19; fault) E411 • Image leading edge sensor 1 (S20; fault) • Original sensor 1 (S1; fault) • Original sensor 2 (S27; fault) 11-264 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 796 If the RDF is out of order, disconnect the lattice connector on the RDF side, open the RDF, and set the original on the copyboard glass to continue to make copies. 11-265 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 797: C. Sorter
(PI8) are not received for 250 msec. • The input signal from the swing home position sensor (PI9) does not change for 1 sec or more. 11-266 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 800 D. PAPER DECK-A1 GENERAL CIRCUIT B. SIGNALS AND ABBREVIATIONS ...A-2 DIAGRAM........A-7 C. GENERAL CIRCUIT DIAGRAM..A-5 E. SPECIAL TOOLS LIST ....A-9 F. SOLVENTS AND OILS....A-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 801 10 min Developing fan (FM5) Feeding fan (FM6) Cleaner fan (FM7) 10 min 10 min Scanner cooling fan (FM8) Total copy counter (CNT1) COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 802 Stapler swing motor (M4) Staple swing stop position sensor (MSW2) Stapler motor (M2) Paper retaining solenoid (SL3) Bin shift motor (M9) DOWN Centering DOWMN COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 803 EXHAUST FAN DRIVE command (HALF SPEED) M3BRK SCANNER MOTOR BRAKE command FM3D EXHAUST FAN DRIVE command (HALF SPEED) M3F/R SCANNER MOTOR FORWARD command COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 804 RIGHT DECK LIFTER LIMIT signal RDEOP RIGHT DECK OPEN DETECT signal RDFEDGE RDF DOCUMENT LEADING EDGE signal RDLMD RIGHT DECK LIFTER MOTOR DRIVE command COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 809 Potential FY9-3012 Use to check the sensor potential sensor. checking electrode FY9-3014 Use to check the Environment environment sensor sensor. checking tool COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 810 Mineral oil • CK-0524 (100 cc) (paraffin family) Lubricant oil Lubricating: Slicone oil • CK-0562 (20 g) plastic drive and friction parts A-10 COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Page 811 Prepared by OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT 1 OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION CANON INC. Printed in Japan REVISION 0 (JULY 1997) [18723] 5-1, Hakusan 7-chome, Toride-shi, Ibaraki 302 Japan...
Page 812 This publication is printed on 70% reprocessed paper. PRINTED IN JAPAN (IMPRIMÉ AU JAPON) 0797S2.11-1...

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Np6350

Canon NP6251 Service Manual

Table of Contents

Table of Contents

Chapter 2 Basic Operation

Chapter 3 Exposure System

Chapter 4 Image Formation System

Chapter 5 Pick-Up/Feeding System

Quick Links

Chapters

Troubleshooting

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Summary of Contents for Canon NP6251