Page 1 Brother Laser MFC SERVICE MANUAL MODEL DCP-7090/7095D/7190DN/7195DW DCP-B7500D/B7520DW/B7530DN/B7535DW DCP-L2510D/L2511D/L2512D/L2530DW DCP-L2531DW/L2532DW/L2535D/L2535DW DCP-L2536D/L2537DW/L2550DN/L2550DW DCP-L2551DN/L2551DW/L2552DN HL-L2390DW/L2395DW MFC-7390/7490D/7890DN/7895DW MFC-B7700D/B7715DW/B7720DN MFC-L2690DW/L2710DN/L2710DW/L2712DN MFC-L2712DW/L2713DW/L2715D/L2715DW MFC-L2716D/L2716DW/L2717DW MFC-L2730DW/L2732DW/L2750DW/L2750DWXL MFC-L2751DW/L2752DW/L2770DW/L2771DW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times.
Page 2 Trademarks BROTHER is either a trademark or a registered trademark of Brother Industries, Ltd. Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries. Apple and Mac are trademarks of Apple Inc., registered in the U.S. and other countries.
Page 3 Open Source Licensing Remarks This product includes open-source software. Go to the manual download selection of your model’s home page of Brother Solutions Center at support.brother.com to view the Open Source Licensing Remarks and Copyright Information. Copyright and License ©2017 Brother Industries, Ltd. All rights reserved.
Page 4: Table Of Contents
CONTENTS SAFETY INFORMATION CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS 1. GENERAL ........................... 1-1 2. NETWORK CONNECTIVITY ....................... 1-9 3. SERVICE INFORMATION ......................1-10 4. SUPPLIES ..........................1-12 5. MEDIA SPECIFICATIONS ......................1-20 6. FAX (ONLY FOR THE MODELS WITH FAX FUNCTION) ............1-21 7.
Page 5 4.2.2 No paper feeding from MP tray ................2-74 4.2.3 No paper feeding from manual feed slot .............. 2-75 4.2.4 Multiple sheets of paper are fed ................2-75 4.2.5 Paper becomes wrinkled ..................2-76 4.2.6 Paper is fed at an angle ..................2-76 4.2.7 Paper curls ......................
Page 6 4.13.3 Communication error occurs ................2-114 4.13.4 Receive buffer full during receiving into memory ..........2-114 4.14 Troubleshooting for Other Problems ................2-115 4.14.1 Cannot make print ....................2-115 4.14.2 Cannot update firmware ..................2-116 4.14.3 “Paper Low” message does not disappear ............2-116 4.14.4 Message indicating that the report is full does not disappear ......
Page 7 9.13.2 Panel PCB ASSY / NFC PCB ASSY / LCD ............3-56 9.13.3 Touch panel ASSY ....................3-57 9.14 Panel unit (For Non-touch panel models) ................. 3-58 9.14.1 Panel unit ......................3-58 9.14.2 Panel PCB ASSY ....................3-59 9.14.3 LCD ........................3-60 9.15 Panel flat cable / First side CIS unit / First side CIS flat cable .........
Page 8 2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY ......... 4-7 Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB (Function code 88) ............ 4-7 3. IF YOU REPLACE THE LASER UNIT ..................4-8 Entering Adjusted Value of Laser Unit ................4-9 4.
Page 9 1.3.20 Print frame pattern (single-side printing) (Function code 69) ....... 5-40 1.3.21 Print frame pattern (duplex printing) (Function code 70) ........5-41 1.3.22 Test pattern (Function code 71) ................5-42 1.3.23 Configure for country/region and model (Function code 74) ........ 5-45 1.3.24 Print maintenance information (Function code 77) ..........
Page 10: Safety Information
SAFETY INFORMATION Definitions of Warnings, Cautions, and Notes and Memos  The following conventions are used in this manual: WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injuries. CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injuries.
Page 11 To use the Machine Safely  Please keep these instructions for later reference and read them before attempting any maintenance. If you do not follow these safety instructions, there is a possibility of a fire, electrical shock, burn or suffocation. WARNING ELECTRICAL HAZARDS Failure to follow the warnings in this section may create the risk of an electrical shock.
Page 12 Doing this might cause an electrical shock. • Brother strongly recommends that you DO NOT use any type of extension cord. • DO NOT put toner cartridges or a toner cartridge and drum unit assembly into a fire or places susceptible to fire.
Page 13 When you move the product, carry the product as shown in the illustration. (Products with scanning function only) To prevent injuries, be careful not to put your fingers in the areas shown in the illustrations. (MFC models only) When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electrical shock, and injury to people.
Page 14 Caution for Laser Product (WARNHINWEIS für Laserdrucker)  CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit. ACHTUNG: Im Falle von Störungen der Lasereinheit muß...
Page 15 If you have questions about what will disable alarm equipment, call your telephone company or a qualified installer. If you are not able to solve a problem with your product, contact Brother Customer Service (see the Online User's Guide: Brother numbers). Confidential...
Page 16 • This equipment may not be used on coin service lines provided by the telephone company or connected to party lines. • Brother cannot accept any financial or other responsibilities that may be the result of your use of this information, including direct, special or consequential damages. There are no warranties extended or granted by this document.
Page 17: Chapter 1 Supplemental Specifications
CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS 1. GENERAL The function comparative table for models as described in this Service Manual are shown below. DCP-L2510D DCP-L2530DW Model DCP-7090 DCP-7095D DCP-B7500D DCP-B7520DW DCP-L2511D DCP-L2531DW DCP-L2512D DCP-L2532DW Wired/ Wired/Wireless Wireless Wireless LAN Auto Duplex ...
Page 18 DCP-7190DN DCP-B7530DN DCP-B7535DW DCP-L2535D DCP-L2535DW DCP-L2537DW Model DCP-7195DW DCP-L2550DN DCP-L2550DW HL-L2395DW DCP-L2536D HL-L2390DW DCP-L2551DN DCP-L2551DW DCP-L2552DN Wired/ Wired/ Wired/ Wired/ Wireless Wireless Wired Wireless LAN Wireless Wireless Wireless Auto Duplex        Print Duplex Scan ...
Page 19 MFC-7390 MFC-L2710DW MFC-L2710DN MFC-L2715D Model MFC-7490D MFC-B7715DW MFC-B7720DN MFC-L2690DW MFC-L2712DW MFC-L2712DN MFC-L2716D MFC-B7700D MFC-L2713DW Wired/ Wired/ Wired/ Wired Wireless Wired Wireless LAN Wireless Wireless  (except for MFC-7390) Auto Duplex       Print N/A (for MFC-7390) Duplex Scan ...
Page 20 MFC-L2750DW MFC-7895DW MFC-L2715DW MFC-L2730DW MFC-L2750DWXL Model MFC-L2717DW MFC-7890DN MFC-L2770DW MFC-L2716DW MFC-L2732DW MFC-L2751DW MFC-L2771DW MFC-L2752DW Wired/ Wired/Wireless Wired/Wireless Wired Wired/Wireless Wired/Wireless Wired/Wireless Wireless LAN Auto Duplex       Print   Duplex Scan     ...
Page 21 DCP-B7500D DCP-L2535D DCP-L2510D DCP-L2530DW DCP-7090 DCP-L2536D Model DCP-L2511D DCP-L2531DW DCP-7095D DCP-B7520DW DCP-L2512D DCP-L2532DW DCP-B7530DN DCP-B7535DW Warm up Time Less than 9 sec. at 73.4F / 50% (23°C / 50%) (From Sleep Mode) Less than 27 sec. at 73.4F / 50% (23°C / 50%) (DCP-B7500D for ASA, Less than 27 sec.
Page 22 DCP-7190DN DCP-L2535DW DCP-L2550DW Model DCP-L2537DW DCP-L2550DN DCP-L2551DW DCP-7195DW HL-L2395DW HL-L2390DW DCP-L2551DN DCP-L2552DN Less than 4 sec. at Less than 9 sec. at Warm up Time Less than 9 sec. at 73.4F / 50% (23°C / 50%) 73.4F / 50% 73.4F / 50% (From Sleep Mode) (23°C / 50%) (23°C / 50%)
Page 23 MFC-L2690DW MFC-B7715DW MFC-L2713DW MFC-L2710DN MFC-B7720DN MFC-L2715DW Model MFC-7390 MFC-7490D MFC-L2710DW MFC-L2715D MFC-L2716DW MFC-L2712DN MFC-L2716D MFC-L2717DW MFC-L2712DW Warm up Time Less than 9 sec. at 73.4F / 50% (23°C / 50%) (From Sleep Mode) Less than 27 sec. at 73.4F / 50% (23°C / 50%) (MFC-B7715DW for EU, Warm up Time...
Page 24 MFC-L2750DW MFC-L2730DW MFC-7890DN MFC-L2750DWXL MFC-L2770DW Model MFC-7895DW MFC-L2732DW MFC-B7700D MFC-L2751DW MFC-L2771DW MFC-L2752DW Less than 9 sec. Less than 4.0 sec. Less than 4.0 sec. Warm up Time Less than 9 sec. at 73.4F / 50% at 73.4F / 50% at 73.4F / 50% (From Sleep Mode) at 73.4F / 50% (23°C / 50%) (23°C / 50%)
Page 25: Network Connectivity
2. NETWORK CONNECTIVITY DCP-7090 DCP-7095D DCP-L2530DW DCP-7190DN DCP-B7500D DCP-L2531DW DCP-B7530DN DCP-L2510D DCP-L2532DW Model DCP-B7520DW DCP-L2550DN DCP-L2511D DCP-L2535DW DCP-L2551DN DCP-L2512D DCP-L2537DW DCP-L2552DN DCP-L2535D HL-L2390DW DCP-L2536D Wired network Network NC-9300h NC-9300h node type type2 type2 Wireless network Network NC-8800w type2 node type...
Page 26: Service Information
3. SERVICE INFORMATION DCP-7090 DCP-7095D DCP-B7500D DCP-B7520DW DCP-7190DN DCP-L2510D DCP-B7530DN DCP-L2511D DCP-B7535DW DCP-L2512D DCP-L2550DN Model DCP-L2530DW DCP-7195DW HL-L2395DW DCP-L2550DW DCP-L2531DW DCP-L2551DN DCP-L2532DW DCP-L2551DW DCP-L2535D DCP-L2552DN DCP-L2535DW DCP-L2536D DCP-L2537DW HL-L2390DW Machine life 50,000 pages (A4/LTR) or 5 years Part life (ADF)
Page 27 MFC-7390 MFC-7490D MFC-B7700D MFC-B7715DW MFC-B7720DN MFC-L2690DW MFC-L2710DN MFC-L2750DW MFC-7890DN MFC-7895DW MFC-L2710DW MFC-L2750DWXL Model MFC-L2730DW MFC-L2770DW MFC-L2712DN MFC-L2751DW MFC-L2732DW MFC-L2771DW MFC-L2712DW MFC-L2752DW MFC-L2713DW MFC-L2715D MFC-L2715DW MFC-L2716D MFC-L2716DW MFC-L2717DW Machine life 50,000 pages (A4/LTR) or 5 years Part life (ADF) 50,000 pages or 5 years Part life 50,000 pages or 5 years (Document scanner unit)
Page 28: Supplies
4. SUPPLIES DCP-L2510D DCP-L2512D DCP-7090 DCP-B7500D DCP-L2511D Model DCP-L2530DW DCP-7095D DCP-B7520DW DCP-L2531DW DCP-L2532DW HL-L2390DW Toner Starter 3,000 pages in 2,600 pages 700 pages in 3,000 pages in cartridge Toner accordance with (Toner Bottle) in accordance with accordance with ISO/IEC 19752...
Page 29 DCP-L2535DW Model DCP-L2535D DCP-L2536D DCP-7190DN DCP-L2537DW Toner Starter 1,200 pages in 1,200 pages in 3,000 pages in 3,000 pages in cartridge Toner accordance with accordance with accordance with accordance with ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 (for ASA) (for VNM/IDN) 3,000 pages in accordance with...
Page 30 DCP-7195DW DCP-B7530DN Model DCP-L2550DN DCP-L2550DW DCP-L2551DN DCP-B7535DW DCP-L2552DN Toner Starter 3,000 pages in 2,600 pages 700 pages in 4,500 pages in cartridge Toner accordance with (Toner Bottle) in accordance with accordance with ISO/IEC 19752 accordance with ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 (for US/LTN) 1,200 pages in...
Page 31 MFC-7390 MFC-B7700D Model DCP-L2551DW HL-L2395DW MFC-7490D MFC-B7720DN Toner Starter 3,000 pages in 700 pages in 3,000 pages in 2,600 pages cartridge Toner accordance with accordance with accordance with (Toner Bottle) in ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 accordance with (for IND/VNM/IDN) ISO/IEC 19752 N/A (for LTN) Standard...
Page 32 MFC-L2690DW MFC-L2710DN MFC-L2710DW Model MFC-B7715DW MFC-L2715D MFC-L2712DN MFC-L2713DW MFC-L2712DW Toner Starter 2,000 pages 700 pages in accordance with ISO/ 1,200 pages in cartridge Toner (Toner Bottle) in IEC 19752 accordance with accordance with ISO/IEC 19752 ISO/IEC 19752 (for ASA) 3,000 pages in accordance with ISO/IEC 19752 (for KOR/PHL)
Page 33 Model MFC-L2715DW MFC-L2716D MFC-L2716DW MFC-L2717DW Toner Starter 1,200 pages in 3,000 pages in 3,000 pages in 1,200 pages in cartridge Toner accordance with accordance with accordance with accordance with ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 (for ASA) (for IND/VNM/ (for IND/TUR/ IDN) VNM/IDN)
Page 34 MFC-L2730DW MFC-L2750DW Model MFC-7890DN MFC-7895DW MFC-L2732DW MFC-L2750DWXL Toner Starter 3,000 pages in 700 pages in 3,000 pages in 700 pages in cartridge Toner accordance with accordance with accordance with accordance with ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 (MFC-L2730DW (MFC-L2750DW for for US/LTN/OCE) US/LTN/OCE/TWN)
Page 35 Model MFC-L2751DW MFC-L2752DW MFC-L2770DW MFC-L2771DW Toner Starter 4,500 pages in 1,200 pages in 3,000 pages in 4,500 pages in cartridge Toner accordance with accordance with accordance with accordance with ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 ISO/IEC 19752 (for TUR) (for ASA) (for TUR) N/A (for EU) 4,500 pages in...
Page 36: Media Specifications
5. MEDIA SPECIFICATIONS DCP-7090 DCP-7095D DCP-B7500D DCP-B7520DW DCP-7190DN DCP-L2510D DCP-7195DW DCP-L2511D DCP-B7530DN DCP-L2512D DCP-B7535DW DCP-L2530DW Model DCP-L2550DN DCP-L2531DW DCP-L2550DW DCP-L2532DW DCP-L2551DN DCP-L2535D DCP-L2551DW DCP-L2535DW DCP-L2552DN DCP-L2536D DCP-L2537DW HL-L2390DW HL-L2395DW Media types Plain Paper, Recycled Paper Paper input 50 sheets Media weight...
Page 37: Fax (Only For The Models With Fax Function)
6. FAX (ONLY FOR THE MODELS WITH FAX FUNCTION) DCP-7090 DCP-7095D DCP-B7500D DCP-B7520DW DCP-7190DN DCP-L2510D DCP-7195DW DCP-L2511D DCP-B7530DN DCP-L2512D DCP-B7535DW Model DCP-L2530DW DCP-L2550DN HL-L2395DW DCP-L2531DW DCP-L2550DW DCP-L2532DW DCP-L2551DN DCP-L2535D DCP-L2551DW DCP-L2535DW DCP-L2552DN DCP-L2536D DCP-L2537DW HL-L2390DW Modem speed Transmission speed ITU-T group...
Page 38: Copy
DCP-B7500D DCP-L2551DW DCP-B7520DW DCP-L2552DN DCP-L2535D DCP-L2535DW DCP-L2536D Copy speed Up to 30/32 cpm Up to 34/36 cpm (A4/Letter) (for DCP-7090, 7095D, L2510D, L2511D, L2512D, L2530DW, L2531DW, L2532DW, L2537DW, HL-L2390DW) Up to 34/36 cpm (for DCP-B7500D, B7520DW, L2535D, L2535DW, L2536D) First...
Page 39 MFC-7390 MFC-7490D MFC-L2710DN MFC-L2710DW MFC-L2712DN MFC-7895DW MFC-L2712DW MFC-L2770DW MFC-B7700D MFC-7890DN MFC-L2771DW MFC-B7715DW Model MFC-L2730DW MFC-L2750DW MFC-B7720DN MFC-L2732DW MFC-L2750DWXL MFC-L2713DW MFC-L2751DW MFC-L2715D MFC-L2752DW MFC-L2715DW MFC-L2716D MFC-L2716DW MFC-L2690DW MFC-L2717DW Copy speed Up to 30/32 cpm Up to 34/36 cpm (A4/Letter) (for MFC-7390, 7490D, L2710DN, L2710DW, L2712DN, L2712DW) Up to 34/36 cpm...
Page 40: Scanner
8. SCANNER DCP-7090 DCP-7095D DCP-B7500D DCP-B7520DW DCP-7190DN DCP-L2510D DCP-7195DW DCP-L2511D DCP-B7530DN DCP-L2512D DCP-B7535DW Model DCP-L2530DW DCP-L2550DN HL-L2395DW DCP-L2531DW DCP-L2550DW DCP-L2532DW DCP-L2551DN DCP-L2535D DCP-L2551DW DCP-L2535DW DCP-L2552DN DCP-L2536D DCP-L2537DW HL-L2390DW Resolution Max. 1,200 x 1,200 dpi (Optical) Max. 600 x 600 dpi N/A Resolution (Interpolated) Max.
Page 41: Chapter 2 Error Indications And Troubleshooting
CHAPTER 2 ERROR INDICATIONS AND TROUBLESHOOTING 1. INTRODUCTION Troubleshooting is the countermeasure procedures that the service personnel should follow if an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible troubles which may occur in future and determine the troubleshooting procedures, so this chapter covers some sample troubles.
Page 42 Warning DO NOT use any flammable spray or flammable solvent such as alcohol, benzine, or thinner in or around the machine. Otherwise a fire or electric shock may result. (5) Check again that the portions and parts repaired or removed during the repair work function properly when the repair is completed.
Page 43: Checks Before Commencing Troubleshooting
1.2 Checks before Commencing Troubleshooting Check the following items before attempting to repair the machine.  Operating environment (1) The machine is placed on a flat, stable surface. (2) The machine is used in a clean environment where the temperature is between 10°C (50°F) and 32°C (89.6°F) and the relative humidity is maintained between 20% and 80%.
Page 44  Cleaning Use a soft dry lint-free cloth. Warning DO NOT use any flammable spray or flammable solvent such as alcohol, benzine, or thinner to clean the machine. DO NOT use these articles near the machine. Confidential...
Page 45: Overview
2. OVERVIEW 2.1 Cross-section Drawing 2.1.1 Printer part  Manual feed slot models Eject roller 2 Exposure drum Laser unit Registration rear actuator Registration roller Registration front actuator <Back side> <Front side> Manual feed slot Back cover Eject roller 1 Paper dust Eject actuator cleaning roller...
Page 46  MP models Eject roller 2 Exposure drum Laser unit Registration rear actuator Registration roller Registration front actuator <Back side> <Front side> MP separation roller Back cover MP paper pick-up roller Eject roller 1 MP paper empty actuator MP separation pad Eject actuator Paper dust cleaning roller...
Page 47: Scanner Part
2.1.2 Scanner part  SX models Document pinch roller 1 Document separation pad Document feed roller 1 Document separate roller Document separate roller ASSY Document feed roller 2 Document tray <Left side> <Right side> Document stopper Document pinch roller 2 Document scanning position actuator Document eject roller...
Page 48  DX models Document pinch roller 1 Document separation pad Document feed roller 1 Document separate roller Document separate roller ASSY Document feed roller 2 Document tray <Left side> <Right side> Document stopper Document pinch roller 2 Document scanning position actuator Second side document hold Document eject roller Scanner glass...
Page 49: Paper Feeding
2.2 Paper Feeding 2.2.1 Printer part  Manual feed slot models Eject to output tray Feed from manual feed slot Eject to back side <Back side> <Front side> Duplex path Fig. 2-5 Confidential...
Page 50  MP models Feed from MP tray Eject to back side <Back side> <Front side> Fig. 2-6 2-10 Confidential...
Page 51: Scanner Part
2.2.2 Scanner part Document feed path Fig. 2-7 2-11 Confidential...
Page 52: Operation Of Each Part And Location Of Parts
2.3 Operation of Each Part and Location of Parts Part name Operation Paper pick up roller Feeds the paper to the separation roller from the paper tray. Separation roller, Separates paper fed from the paper tray into single sheets. Separation pad Paper feed actuator Detects paper trays (open / closed).
Page 53 Part name Operation New toner sensor When exchange to the new toner cartridge, detects the kinds of toner and add 1 to the reset of the developing bias and to the exchange count. Toner sensor Detects the toner cartridge is set. External temperature/humidity Detects external temperature and humidity around the sensor...
Page 54: Block Diagram
2.4 Block Diagram ADF unit Non touch panel model only Duplex scan model only Panel PCB Second side CIS unit ADF cover sensor Touch panel model only Document detection sensor PCB Panel PCB Document scanning position sensor PCB Key PCB NFC PCB ADF motor NFC model...
Page 55: Main Components
2.5 Main Components ADF unit Document scanner unit Modem shield plate Panel unit Joint cover ASSY Fig. 2-10 2-15 Confidential...
Page 56 Back cover Side cover R Inner chute ASSY Laser unit Outer chute ASSY New toner sensor PCB ASSY Fuser cover Low-voltage power Fuser unit supply PCB ASSY Eject sensor Main shield plate PCB ASSY High-voltage power supply PCB ASSY Fuser gear Paper feed sensor PCB ASSY 64R/36R Paper feed motor...
Page 57: Error Indications
3. ERROR INDICATIONS This machine includes a self-diagnosis function. If the machine does not work normally it judges that an error has occurred, and indicates the corresponding error message on the LCD, which in turn helps the service personnel to quickly find out the problem. 3.1 Error Codes The shaded errors hardly occur under normal use.
Page 58: Error Codes
Error Refer Error Refer Description Description Codes Codes Toner cartridge could not communicate 0D04 --- 2500 2-51 with the cartridge sensor. 0E00 --- 2501 --- 1003 --- 2502 --- 1004 --- 2503 --- 1100 --- 2601 --- 1200 --- 2602 --- 1300 --- 2603 --- 1400 ---...
Page 59 Error Refer Error Refer Description Description Codes Codes 3301 --- 4A00 --- Dot counter of the toner cartridge or 3302 --- 4B01 develop roller counter reaches the 2-52 upper limit soon. 3401 --- 4B02 --- 3402 --- 4B03 --- 3501 --- 4B04 --- The amount of toner supplied of the 3601 ---...
Page 60 Error Refer Error Refer Description Description Codes Codes 5406 --- 6300 --- 5502 --- 6400 --- 5602 --- 6602 --- 5702 --- 6701 --- The side thermistor detected a 5801 --- 6801 temperature higher than the specified 2-57 value. 5802 --- 6802 --- Some fuser unit errors occurred at 5902 ---...
Page 61 Error Refer Error Refer Description Description Codes Codes 7104 --- 8100 --- 7105 --- 8401 --- 7106 --- 8402 --- When the paper is fed from the MP tray, after the MP paper empty sensor detects 7200 paper pass, the registration rear sensor 2-59 8403 --- does not detect paper pass after a set...
Page 62 Error Refer Error Refer Description Description Codes Codes The registration rear sensor detected that the paper fed was smaller or larger 8A01 2-61 9203 --- than the specified size in duplex printing mode. 8A02 --- 9204 --- 8B01 --- 9205 --- There is no paper set in the manual feed 8C00 2-61...
Page 63 Error Refer Error Refer Description Description Codes Codes 9706 --- 9D04 --- 9801 --- 9D05 --- Image processing was not completed correctly because the number of pixels 9802 --- A000 2-65 required for image processing is insufficient in the scanned second side data. The document scanning position sensor 9803 --- A200...
Page 64 Error Refer Error Refer Description Description Codes Codes The document scanning position sensor detected that the document BF00 length was 400 mm or longer and 2-70 ED00 --- could not be fed to ADF (double-side restoration). C001 --- EE00 --- The spec code was not entered C002 --- F900...
Page 65: Error Message
3.2 Error Message The error messages displayed on the LCD of the machine and their description are shown in the table below. 3.2.1 LCD models Error message Error Refer Description codes Initial display Scroll Cannot Detect Put the Drum Unit New process sensor could not back in.
Page 66 Error message Error Refer Description codes Initial display Scroll Document Clear the scanner The document scanning jam, then press the position sensor detected that Stop Key. the document length was 90 cm A200 2-65 or more during the one-side scanning. The document scanning position sensor has not detected the document passing...
Page 67 Error message Error Refer Description codes Initial display Scroll Journal Full The number of the registered communication management 4.14.5 reports reached 200. Machine Error - Detected that the modem PCB D200 2-70 is not connected. Machine Error The spec code was not entered F900 2-72 correctly.
Page 68 Error message Error Refer Description codes Initial display Scroll No Paper T1 Reload paper in When paper was fed from the Tray 1. paper tray, the T1 paper empty sensor or T1 paper feed sensor 9302 2-63 detected that no paper was in the paper tray.
Page 69 Error message Error Refer Description codes Initial display Scroll Print Unable Turn the power off Detected the fuser unit 0501 2-49 and then back on temperature error. 0502 2-49 again. 0503 2-49 0504 2-49 0505 2-49 0506 2-49 0508 2-49 050A 2-49 050B...
Page 70 Error message Error Refer Description codes Initial display Scroll Print Unable Turn the power off An error occurred in the ROM and then back on check sum. E000 2-71 again. Print Unable Turn the power off Program error and then back on E100 2-71 again.
Page 71 Error message Error Refer Description codes Initial display Scroll Scan Unable Document is too The document scanning long for 2-sided position sensor detected that scanning. Press the document length was 400 BF00 2-70 mm or longer and could not be Stop key.
Page 72 Error message Error Refer Description codes Initial display Scroll Size Error DX Press Stop Key. For 2-sided printing, paper size Specify the correct setting of the printer driver that paper and load the was not supported by 2-sided 9701 2-64 printing was selected.
Page 73 Error message Error Refer Description codes Initial display Scroll Wrong Paper Reload correct MP tray ran out of paper and the Size paper in the MP paper tray alternatively chosen Tray or press Start. has paper in different size when 4.14.1 the paper used for copy was from the MP tray and the choice...
Page 74: Touch Panel Models
3.2.2 Touch panel models Error message Error Refer Description codes Upper line Lower line Cannot Detect Put the Drum Unit New process sensor could not back in. detect the new drum unit 4F05 2-53 correctly. Put the Toner Toner cartridge is not Cartridge back in.
Page 75 Error message Error Refer Description codes Upper line Lower line Jam Inside After the registration rear sensor detects paper pass, the eject 7000 2-58 sensor does not detect paper pass. Jam MP Tray When the paper is fed from the MP tray, after the MP paper empty sensor detects paper 7200...
Page 76 Error message Error Refer Description codes Upper line Lower line No Paper Reload paper in Detected that there was no Tray. paper set in all trays when 9309 2-64 TrayAuto was selected for printing. Reload correct Detected that there was no paper in Tray1, then paper set in all trays when TrayAuto was selected for...
Page 77 Error message Error Refer Description codes Upper line Lower line Print Data Full Print Data is full. The memory used to store Press Stop[x] and secure print data exceeded the delete the memory size for secure print C800 2-70 data. previously stored data.
Page 78 Error message Error Refer Description codes Upper line Lower line Print Unable Turn the power off An error occurred in the high- and then back on voltage power supply PCB 0B01 2-51 again. ASSY while operating. An error occurred in the high- voltage power supply PCB 0B02 2-51...
Page 79 Error message Error Refer Description codes Upper line Lower line Replace Toner - Dot count or develop roller counter of the toner cartridge in models without toner box has 4C01 2-52 reached the upper limit in the toner stop mode. The amount of toner supplied of the toner box has reached the 4C06...
Page 80 Error message Error Refer Description codes Upper line Lower line Size Error Specify the correct For printing by feeding paper paper size for Tray from the paper tray, the size of paper specified from the driver 9702 2-64 set the size which was not supported by the paper tray.
Page 81 Error message Error Refer Description codes Upper line Lower line Supplies Drum End Soon Number of the drum unit rotations reaches the upper limit 4000 2-52 soon. Replace Drum Number of the drum unit rotations has reached the upper 4200 2-52 limit.
Page 82 Error message Error Refer Description codes Upper line Lower line 2-sided The back cover sensor detected Disabled the open state when 2-sided printing is started (before the 8903 2-61 registration of printing in the engine). The back cover sensor detected the open state during 2-sided 8904 2-61...
Page 83: Communication Errors
3.3 Communication Errors Code 1 Code 2 Cause Refer to: No document set when calling. 4.11.1 Wrong fax number called. 4.13.1 No dial tone detected before dialing. 4.13.1 Busy tone detected before dialing. 4.13.1 2nd dial tone not detected. 4.13.1 No loop current detected.
Page 84 Code 1 Code 2 Cause Refer to: Unable to detect flag field. 4.13.3 Carrier was OFF for 200 ms or longer. 4.13.3 Abort detected (“1” in succession for 7 bits or more). 4.13.3 Overrun detected. 4.13.3 A frame received for 3 seconds or more. 4.13.3 CRC error in answerback.
Page 85 Code 1 Code 2 Cause Refer to: ECM requested although not allowed. 4.13.3 Polled while not ready. 4.13.3 No document to be sent when polled. 4.11.1 Nation code or manufacturer code not correct. 4.13.1 Group number not registered for relay broad-casting was specified or the number of addressees specified exceeded 4.13.1 the maximum allowable number.
Page 86 Code 1 Code 2 Cause Refer to: Decoding error continued for 15 seconds or more. 4.13.3 Time-out: 13 seconds or more for one-line transmission. 4.13.3 RTC not found or carrier OFF detected for 6 seconds. 4.13.3 RTC found but no command detected for 60 seconds or 4.13.3 longer.
Page 87: Troubleshooting
4. TROUBLESHOOTING 4.1 Error Cause and Remedy  Error code 0102 ASIC error or motor driver error occurred. Step Cause Remedy Main PCB failure Replace the main PCB ASSY.  Error code 0201 Cannot detect the synchronized signal of the paper feed motor. The speed of the paper feed motor does not stabilize within the specified time.
Page 88  Error code 0401 BD sensor failure (second time) Error code 0405 BD sensor failure (first time) <User Check> • There is a possibility of condensation. Leave the front and back cover open for at least 30 minutes when the power is ON. Close those covers and turn the power switch OFF and then back ON again.
Page 89  Error code 0501 The center thermistor of the fuser unit has not reached the specified temperature within the specified time. Error code 0502 The center thermistor of the fuser unit has not reached the specified temperature within the specified time after it was heated normally to the certain level. Error code 0503 The center thermistor of the fuser unit detected a temperature higher than the specified value.
Page 90  Error code 0900 Detected irregular power supply for more than 100 times. Step Cause Remedy Low-voltage power supply PCB Replace the low-voltage power supply failure PCB ASSY. Refer to “1.3.30 Reset irregular power supply detection counter of low-voltage power supply PCB (Function code 88)”...
Page 91  Error code 0B01 An error occurred in the high-voltage power supply PCB ASSY while operating. Error code 0B02 An error occurred in the high-voltage power supply PCB ASSY when the machine was in the ready state. <User Check> • Slide the green tab of the drum unit to left and right for two to three times to clean the corona wire. •...
Page 92  Error code 4000 Number of the drum unit rotations reaches the upper limit soon. Error code 4200 Number of the drum unit rotations has reached the upper limit. (Printing does not stop.) <User Check> • Prepare a new drum unit. Step Cause Remedy...
Page 93  Error code 4F01 The new toner sensor of the toner cartridge could not detect a new cartridge properly. <User Check> • Replace the toner cartridge with a new toner cartridge again. • If the machine is on the uneven surface, place it on a level surface. Step Cause Remedy...
Page 94  Error code 6001 The front cover sensor detected that the front cover was open. <User Check> • Close the front cover. Step Cause Remedy Connection failure of the front Reconnect the front cover sensor cover sensor harness harness. Front cover failure Replace the front cover.
Page 95  Error code 6101 The new toner sensor detected that no toner cartridge was set. <User Check> • Set the toner cartridge correctly. Step Cause Remedy New toner sensor PCB failure Replace the new toner sensor PCB ASSY. High-voltage power supply PCB Replace the high-voltage power supply failure PCB ASSY.
Page 96  Electrodes location of main body Fig. 2-12  Electrodes location of the drum unit and process unit Fig. 2-13 2-56 Confidential...
Page 97  Error code 6801 The side thermistor detected a temperature higher than the specified value. <User Check> • Lower the room temperature. • Keep the machine away from heating appliances. • Check that the fan is not clogged. Step Cause Remedy Connection failure of the side Reconnect the side thermistor harness.
Page 98  Error code 6A00 Electric discharge that may be caused by dirt on the corona wire of the drum unit was detected. <User Check> • Slide the green tab of the drum unit to left and right for two to three times to clean the corona wire. •...
Page 99  Error code 7100 After the registration rear sensor detects the end of paper pass and the specified period of time has passed, the eject sensor continues to detect paper pass. <User Check> • Remove the jammed paper. • Check if the back cover is open during duplex printing. Step Cause Remedy...
Page 100  Error code 7302 When printing from the paper tray, the registration front sensor does not detect paper pass within the specified time after the T1 paper feed sensor detected paper pass. <User Check> • Remove the jammed paper. • Add the paper properly using the paper guide of paper tray. Step Cause Remedy...
Page 101  Error code 8903 The back cover sensor detected the open state when 2-sided printing is started (before the registration of printing in the engine). Error code 8904 The back cover sensor detected the open state during 2-sided printing (after the registration of printing in the engine).
Page 102  Error code 8E01 Paper size is not set as A4/Letter/Legal/Folio when receiving fax or printing a list/report. Error code 8E02 Detected that the size of paper set in the paper tray was over 10 mm shorter than paper size set in the machine during faxing or printing a list or report.
Page 103  Error code 9301 When paper was fed from the MP tray, the MP paper empty sensor detected that no paper was in the MP tray. <User Check> • Load paper to the MP tray. Step Cause Remedy MP paper empty actuator caught Reattach the MP paper empty actuator.
Page 104  Error code 9309 Detected that there was no paper set in all trays when TrayAuto was selected for printing. <User Check> • Set paper in the paper tray. Step Cause Remedy Connection failure of the MP Reconnect the MP paper empty sensor paper empty sensor PCB harness PCB harness.
Page 105  Error code A000 Image processing was not completed correctly because the number of pixels required for image processing is insufficient in the scanned second side data. Step Cause Remedy Incorrect correction data for Execute “Set CIS scan area (Function second side CIS unit code 55)”.
Page 106  Error code A400 The ADF cover sensor detected that the ADF cover was open. <User Check> • Close the ADF cover correctly. Step Cause Remedy ADF cover actuator caught in Reattach the ADF cover actuator. some sections of the machine ADF cove sensor attachment Reattach the ADF cover sensor.
Page 107  Error code A700 Color parameter in the ROM does not match the first side or second side CIS. Error code A900 A scanning error occurred while processing the scanned image. Step Cause Remedy Incorrect correction data for first Execute “Set CIS scan area (Function side or second side CIS unit code...
Page 108  Error code AF00 Home position is still being detected even after the first side CIS unit was moved. Step Cause Remedy Dust on the CIS guide shaft Remove the dust on the CIS guide shaft. CIS drive belt coming off Reattach the CIS drive belt.
Page 109  Error code BB00 A white level not within the standard was scanned when function code 55 was executed. Step Cause Remedy Dirt on the second side Clean the second side document hold. document hold Dirt on the white tape Clean the white tape.
Page 110  Error code BF00 The document scanning position sensor detected that the document length was 400 mm or longer and could not be fed to ADF (double-side restoration). <User Check> • Set the specified size paper. Step Cause Remedy Document scanning position Reattach the document scanning position actuator caught in some sections actuator.
Page 111  Error code D800 An error occurred while initializing the touch panel. Step Cause Remedy Connection failure of the panel Reconnect the panel flat cable. flat cable Connection failure of the key Reconnect the key PCB flat cable. PCB flat cable Touch panel ASSY failure Replace the touch panel ASSY.
Page 112  Error code E900 An error occurred while initializing the NFC. Step Cause Remedy Connection failure of the panel Reconnect the panel flat cable. flat cable Connection failure of the NFC flat Reconnect the NFC flat cable. cable Panel PCB failure Replace the panel PCB ASSY.
Page 113: Troubleshooting For Paper Feeding Problems
4.2 Troubleshooting for Paper Feeding Problems Problems related to paper feeding are end user recoverable if following the User Check items. If the same problem occurs again, follow each procedure in the order of the number described in the Step column in the tables below. 4.2.1 No paper feeding from paper tray <User Check>...
Page 114: No Paper Feeding From Mp Tray
4.2.2 No paper feeding from MP tray <User Check> • Check that the paper is set in the MP tray deeply. • Check that too much paper is not loaded in the MP tray. • Check if the machine is used with the MP tray support and MP flap are in closed state. •...
Page 115: No Paper Feeding From Manual Feed Slot
4.2.3 No paper feeding from manual feed slot <User Check> • Check that the paper is set into the deepest part of the manual feed slot. • Check that multiple sheets of paper are not set in the manual feed slot. •...
Page 116: Paper Becomes Wrinkled
4.2.5 Paper becomes wrinkled <User Check> • Check that the paper is set in each paper tray correctly. • Flip over the paper in each paper tray or rotate the paper 180°. • Adjust each paper guide according to each paper size. •...
Page 117: Paper Curls
4.2.7 Paper curls <User Check> • Change the driver setting to be matched with the size of the paper set in the paper tray. • Select “Reduce Paper Curl” in the driver. • Check that the paper is set in each paper tray correctly. •...
Page 118: Paper Jam
4.2.9 Paper jam  Paper jam at the paper tray <User Check> • Check that the paper is set in the paper tray correctly. • Flip over the paper in the paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
Page 119  Paper jam at the MP tray <User Check> • Check that the paper is set in the MP tray correctly. • Flip over the paper in the MP tray or rotate the paper 180°. • Adjust each paper guide according to each paper size. •...
Page 120  Paper jam at the manual feed slot <User Check> • Check that the paper is set in the manual feed slot correctly. • Flip over the paper in the manual feed slot or rotate the paper 180°. • Adjust the paper guide according to the paper size. •...
Page 121  Paper jam at the paper feeding section at the center of the machine <User Check> • Check that the paper is set in each paper tray correctly. • Flip over the paper in each paper tray or rotate the paper 180°. •...
Page 122  Paper jam at the eject section <User Check> • Check that the paper is set in each paper tray correctly. • Flip over the paper in each paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
Page 123: Troubleshooting For Image Defects
4.3 Troubleshooting for Image Defects 4.3.1 Image defect examples Light Faulty registration Dark Poor fixing Completely blank (2-84) (2-85) (2-86) (2-86) (2-87) Image distortion All black Dirt on back side of paper Vertical streaks (2-87) (2-88) (2-88) (2-89) Horizontal stripes White vertical White horizontal Faint print...
Page 124: Troubleshooting Image Defect
4.3.2 Troubleshooting image defect Image defect related problems are end user recoverable if following the User Check items. If the same problem occurs again, follow each procedure in the order of the number described in the Step column in the tables below. ...
Page 125  Electrodes location of the process unit Fig. 2-17  Faulty registration <User Check> • Check whether appropriate paper type is selected on the driver. • Install the latest main firmware. Step Cause Remedy Registration rear actuator Reattach the registration rear actuator. coming off Laser unit failure Replace the laser unit.
Page 126  Dark <User Check> • Check the usage environment of the machine. Using the machine in hot-humid or cold-dry conditions can cause this problem. • If a new toner cartridge has been detected, check that it was not replaced with another toner cartridge. •...
Page 127  Completely blank <User Check> • Replace the drum unit with a new one. • Replace the toner cartridge with a new one. • Install the latest main firmware. Step Cause Remedy Connection failure of the laser Reconnect the laser unit flat cable. unit flat cable Laser unit attachment failure Reattach the laser unit.
Page 128  All black <User Check> • Clean the corona wire of the drum unit. • Replace the drum unit with a new one. Step Cause Remedy Dirt on the electrodes of the Clean the electrodes of the drum unit and drum unit and those of the those of the machine.
Page 129  Vertical streaks <User Check> • Clean the corona wire of the drum unit. • Return the corona wire cleaning tab to the “▲” position. • This problem may disappear after printing multiple sheets of paper. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator.
Page 130  Horizontal stripes <User Check> • This problem may disappear after printing multiple sheets of paper. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
Page 131  White horizontal stripes on image <User Check> • This problem may disappear after printing multiple sheets of paper. • Replace the drum unit with a new one. • Replace the toner cartridge with a new one. Step Cause Remedy Dirty charge electrodes Clean the electrodes of the drum unit and those of the machine.
Page 132  White spots on image <User Check> • Check that the fan is not clogged. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
Page 133  Spots or dirt <User Check> • Check if damp paper is used. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
Page 134  Band <User Check> • Clean the corona wire of the drum unit. • Clean the corona wire by sliding the green tab of the drum unit to the left end. • This problem may disappear after printing multiple sheets of paper. •...
Page 135 (2) Use the numbered markers next to the drum roller to find the mark on the drum. For example, a dot in column 2 on the check sheet means that there is a mark in drum region “2”. Fig. 2-21 (3) Turn the edge of the drum unit towards you while looking at the drum surface to find the mark.
Page 136  Downward fogging of solid color <User Check> • Replace the toner cartridge with a new one. Step Cause Remedy High-voltage power supply Replace the high-voltage power supply PCB PCB failure ASSY. Main PCB failure Replace the main PCB ASSY. ...
Page 137  Ghost <User Check> • Check the usage environment of the machine. Using the machine in hot-humid or cold-dry conditions can cause this problem. • Check whether appropriate paper type is selected on the driver. • Select “Improve Toner Fixing” in the driver. •...
Page 138: Troubleshooting For Software Problems
(2) Click the [More Info...] in the [About This Mac] dialog box. (3) Select [USB] under the [Hardware] in [Contents] on the left side. (4) Select the machine [MFC-XXXX] from [USB Device Tree]. (5) Check [Product ID] in [MFC-XXXX].  Product ID (Hexadecimal) DCP-7090 0417h DCP-L2537DW 0422h MFC-L2710DW...
Page 139: Troubleshooting For Network Problems
4.5 Troubleshooting for Network Problems 4.5.1 Cannot make a print through network connection <User Check> • Check the relevant section in the Network Setting Guide. • Check the network connection. • Reset the network. (Refer to the online User’s Guide.) •...
Page 140: Troubleshooting For Control Panel Problems
4.6 Troubleshooting for Control Panel Problems 4.6.1 Nothing is displayed on the LCD <User Check> • Turn the power switch OFF and then back ON again. • Unplug the AC cord and then plug it again. Step Cause Remedy Connection failure of the Reconnect the panel flat cable.
Page 141: Troubleshooting For Toner Cartridge And Drum Unit Problems
4.7 Troubleshooting for Toner Cartridge and Drum Unit Problems 4.7.1 New toner not detected <User Check> • Be sure to set a new toner cartridge(or box). • Check that the genuine toner cartridge(or box) is set. Step Cause Remedy New toner actuator coming off Reattach the new toner actuator.
Page 142: Toner Replacement Message Displayed On Lcd Is Not Cleared
4.7.3 Toner replacement message displayed on LCD is not cleared <User Check> • Be sure to set a new toner cartridge(or box). • Check that the genuine toner cartridge(or box) is set. Step Cause Remedy New toner actuator coming off Reattach the new toner actuator.
Page 143: Troubleshooting For Fuser Unit Problems
4.8 Troubleshooting for Fuser Unit Problems 4.8.1 Fuser unit failure Step Cause Remedy Connection failure of the Reconnect the center thermistor harness. center thermistor harness Connection failure of the side Reconnect the side thermistor harness. thermistor harness Connection failure of the Reconnect the heater harness.
Page 144: Troubleshooting For Pcb Problems
4.10 Troubleshooting for PCB Problems 4.10.1Main PCB failure <User Check> • Turn the power switch OFF and then back ON again. • Install the latest main firmware. • Check the print limit ID. • Check that the print data is not damaged. Step Cause Remedy...
Page 145: Troubleshooting For Document Feeding Problems
4.11 Troubleshooting for Document Feeding Problems 4.11.1 No document is fed <User Check> • Set the document properly and check that the display on the LCD changes. • Check that the number of paper set has not exceeded the upper limit in the document tray. •...
Page 146: Document Jam
4.11.3 Document jam  Paper jam in the ADF cover <User Check> • Check that the thickness of the document is 64 to 105 g/m • Check that the paper used for the document is not shorter than 147.3 mm. •...
Page 147: Document Becomes Wrinkled
 Paper jam in the paper eject section of the ADF <User Check> • Check that the thickness of the document is 64 to 105 g/m Step Cause Remedy Foreign object in the ADF Remove the foreign object. document eject path Document pinch roller coming Reattach the document pinch roller.
Page 148: Troubleshooting For Scanning Image Defect
4.12 Troubleshooting for Scanning Image Defect 4.12.1Defect examples Light Faulty registration Dark Completely blank All black (2-108) (2-109) (2-109) (2-110) (2-110) Vertical streaks White streaks Partially shaded Fully tinged (2-111) (2-111) (2-112) (2-112) Fig. 2-24 4.12.2Troubleshooting according to image defect ...
Page 149  Faulty registration • First side (Document scanner unit) Step Cause Remedy Deviation of the scanning Execute “Fine adjustment of scan start start position position (Function code 54)”. Document scanning position Reattach the document scanning position actuator caught in some actuator.
Page 150  Completely blank <User Check> • Check that the document is not reversed. Step Cause Remedy Incorrect white level Execute “Acquire white level data (Function correction data code 55)”. First or second side CIS flat Replace the first or second side CIS flat cable failure cable.
Page 151  Vertical streaks <User Check> • Clean the scanner glass or first side/second side scanner glass strip. • Clean the document hold. Step Cause Remedy Dirt inside of scanner glass Clean the inside of the scanner glass. Dirt inside of first side/second Clean the inside of the first side/second side side scanner glass strip scanner glass strip.
Page 152  Partially shaded <User Check> • Clean the scanner glass. Step Cause Remedy Dirt inside of scanner glass Clean the inside of scanner glass. Deformed document sponge Replace the document scanner unit.  Fully tinged <User Check> • Clean the scanner glass or first side/second side scanner glass strip.
Page 153: Troubleshooting For Fax/Phone Problems
4.13 Troubleshooting for FAX/Phone Problems 4.13.1Fax cannot be sent <User Check> • Check that the line cord is inserted into the socket correctly. • Check that the dial function setting (tone/pulse) is correct. • Check that the fax document is set in the ADF correctly. •...
Page 154: Fax Cannot Be Received
4.13.2Fax cannot be received <User Check> • Check that the line cord is inserted into the socket correctly. • Check that the receiving mode setting is correct. • Check that the receiver's machine works normally or the function you want to perform is equipped with the receiver's machine.
Page 155: Troubleshooting For Other Problems
4.14 Troubleshooting for Other Problems 4.14.1Cannot make print <User Check> • Turn the power switch OFF and then back ON again. • Check that the USB cable is connected to the host correctly. • Check that the LAN cable is connected to the host correctly. •...
Page 156: Cannot Update Firmware
[Option] and turn the machine ON. 3) Double-click the “Filedg32.exe” to start, and select “Brother Maintenance USB Printer”. 4) Drag and drop the firmware (upd file) in the FILEDG32 screen. Update is started.
Page 157: Message Indicating That The Report Is Full Does Not Disappear
4.14.4Message indicating that the report is full does not disappear <User Check> • Output each report. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. 4.14.5Paper tray cannot be recognized <User Check> • Close the paper tray properly. Step Cause Remedy...
Page 158: Chapter 3 Disassembly/Reassembly
CHAPTER 3 DISASSEMBLY/REASSEMBLY 1. SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. WARNING Some parts inside the machine are extremely hot immediately after the machine is used. When opening the front cover ASSY or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures.
Page 159: Packing
2. PACKING Polystyrene pad ASSY Option carton Option carton TBOX Spacer carton Carton Fig. 3-1 Confidential...
Page 160: Screw Catalogue
3. SCREW CATALOGUE Taptite bind B Screw cup Screw cup Taptite bind B M3x6 M3x8 Screw cup Taptite bind B M3x8 M3x10 Taptite bind B Taptite cup S M4x12 Taptite cup S Taptite pan B M3x6 SR Taptite pan B Taptite cup S M4x14 M3x8 SR...
Page 161: Screw Torque List
4. SCREW TORQUE LIST Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Side cover R Taptite bind B M4x12 0.8±0.1 (8±1) Inner chute ASSY Taptite bind B M4x12 0.8±0.1 (8±1) Side cover L Taptite bind B M4x12 0.8±0.1 (8±1) Handset holder ASSY Taptite bind B M4x12 0.8±0.1 (8±1)
Page 162 Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Low-voltage power supply PCB ASSY Screw cup M3x8 (black) 0.45±0.05 (4.5±0.5) High-voltage power supply PCB ASSY Screw cup M3x8 (black) 0.45±0.05 (4.5±0.5) Toner box relay PCB ASSY Taptite bind B M4x12 0.8±0.1 (8±1) (For models with toner box)/ MP relay PCB ASSY (For MP models)
Page 163: Lubrication
5. LUBRICATION Lubricating oil type Lubrication point Quantity of lubrication (Maker name) BDX313 (A) (Kanto Kasei) Hinge ASSY L 9 places 2.0 mm dia. ball FLOIL BG-10KS (Kanto Kasei) Fuser gear 64R/36R 3 places 1.5 to 2.0 mm dia. ball ...
Page 164: Overview Of Gears
6. OVERVIEW OF GEARS <Layout view> 8,9,10 4,5,6 Fig. 3-5 <Development view> Fig. 3-6 Note: • When handling gears, make sure that frame L faces up. Otherwise all gears come off. <Name of gears> D00AHW Ejector gear 16/15 D00HHK Gear 70R DEV LY9006 Ejector gear 33 D00HHM Clutch DEV NON toner box...
Page 165 <Layout view> 17,18,19 Fig. 3-7 <Development view> Fig. 3-8 Note: • When handling gears, make sure that frame L faces up. Otherwise all gears come off. <Name of gears> D00EGI Gear toner box idle 32 D00CXT Gear 23R PF D00CUB Sector gear toner box D00AK9 Gear 38L PF...
Page 166: Harness Routing
7. HARNESS ROUTING Handset holder ASSY, Speaker harness ASSY Hook harness (WH) Lower handset holder Speaker harness ASSY (RD) Side cover L Harness colors are subject to change for some reason. Confidential...
Page 167 ADF unit ADF unit Document scanner unit FFC holder ASSY Second side CIS flat cable ADF sensor harness unit Second side CIS flat cable ADF sensor harness (WH, BL, BK) ADF motor harness ADF FFC holder (RD) ADF ground harness (OR) Main PCB ASSY Harness colors are subject to change for some reason.
Page 168 Document scanner unit Document scanner unit Panel ground harness (BK) First side CIS flat cable First side CIS flat cable Panel flat cable Panel ground harness (BK) Panel flat cable ADF FFC holder Document scanner motor harness (WH) Document scanner Main PCB ASSY motor harness FB ground harness (BK)
Page 169 Lower document chute Second side CIS flat cable Flat core Lower document chute Harness colors are subject to change for some reason. 3-12 Confidential...
Page 170 Panel unit Panel PCB ASSY NFC flat cable Key flat cable Harness colors are subject to change for some reason. 3-13 Confidential...
Page 171 First side CIS unit, Panel Document scanner bottom cover ASSY Flat core First side CIS flat cable Panel flat cable Flat core Panel ground harness (BK) Document scanner motor harness (WH) FB ground harness (BK) Harness colors are subject to change for some reason. 3-14 Confidential...
Page 172 Modem PCB ASSY (LVPS side) Modem ground harness LVPS (GR) Modem flat cable Modem ground harness main (YW) Main PCB ASSY Harness colors are subject to change for some reason. 3-15 Confidential...
Page 173 Rear side of the machine HVPS flat cable Laser unit flat cable Polygon motor harness (WH) Eject sensor PCB ASSY High-voltage power supply PCB ASSY New toner sensor flat cable Registration front/rear sensor harness (GR, WH, BL, RD) Fan harness (RD, BK, WH) Fuser unit heater harness (WH) Side thermistor harness ASSY...
Page 174 Top side of the machine HVPS flat cable Toner box relay flat cable * /MP relay flat cable * Main PCB ASSY Polygon motor harness (WH) For models with Toner box For MP models Harness colors are subject to change for some reason. 3-17 Confidential...
Page 175 Frame L unit (Manual feed models) Toner sensor harness (RD) * Toner box relay PCB ASSY * Toner box relay flat cable * Toner box solenoid HVPS flat cable Front cover sensor harness (YW) harness (WH) * Toner box new Laser unit flat cable Main PCB ASSY harness (BL) *...
Page 176 Frame L unit (MP models) MP relay flat cable Laser unit flat cable Front cover sensor harness (YW) MP relay PCB ASSY MP sensor harness (BK) Main PCB ASSY Back cover/duplex tray HVPS flat cable MP paper empty sensor harness (RD, BL) sensor harness (RD) Eject sensor flat cable...
Page 177 Top side of the registration chute Top side LVPS harness (WH, BK) Frame R unit Registration front/rear sensor harness (GR, WH, BL, RD) Paper feed sensor harness (RD, BL, WH) Paper feed sensor harness (RD, BL, WH) Harness colors are subject to change for some reason. 3-20 Confidential...
Page 178 Frame R unit Registration front/rear sensor harness (GR, WH, BL, RD) LVPS harness (WH, BK) Harness colors are subject to change for some reason. 3-21 Confidential...
Page 179: Disassembly Flow Chart
8. DISASSEMBLY FLOW CHART Disassembly / Reassembly (second) 9.12 Document cover 9.2 Cord hook 9.27 Roller holder ASSY ASSY 25/30 9.11.2 ADF cover ASSY / 9.6 Side cover R 9.9 Side cover L Document stopper 15/15 15/15 10/10 9.21 HVPS flat cable / 9.19 Low-voltage power 9.9 Speaker harness 9.9 Handset holder...
Page 180: Disassembly Procedure
9. DISASSEMBLY PROCEDURE 9.1 Preparation  Transferring Received FAX Data In case of machine failure, unplugging the AC cord is required for sending the machine to repair. In this regard, received fax data left in the machine would be lost. To prevent such data loss, fax files left in the machine can be transferred to other fax machines or PCs.
Page 181  Disconnecting Cables and Removing Accessories Prior to proceeding with the disassembly procedure, (1) Disconnect the following: • USB cable (if connected) • LAN cable (if connected) • Handset curled cord (if connected) • Line cord (if connected) (2) Remove the following: •...
Page 182: Cord Hook
9.2 Cord hook (1) Rotate the Cord hook by 90 degrees to remove it. (two locations) Cord hook Cord hook Cord hook Fig. 3-10 3-25 Confidential...
Page 183: Back Cover
9.3 Back cover (1) Open the Back cover. (2) Push both Ribs on the Back cover outward, and remove the Pin on the Outer chute ASSY. (3) Pull out the right side of the Back cover in the direction of the arrow A to remove it from the Boss, and remove the Back cover in the direction of the arrow B.
Page 184: Outer Chute Assy
9.4 Outer chute ASSY (1) Pull out the right side of the Outer chute ASSY in the direction of the arrow A to remove the Boss of the Outer chute ASSY, and remove the Outer chute ASSY in the direction of the arrow B.
Page 185: Front Cover Assy / Support Flap
9.5 Front cover ASSY / Support flap  Manual feed models (1) Open the Front cover ASSY. (2) Remove the Collar 4 to remove the Develop joint link from the Front cover ASSY. (3) Lift the Rib on the Front chute ASSY, and slide the Front cover ASSY in the direction of the arrow A to remove it.
Page 186  MP models (4) Open the Front cover ASSY. Remove the Collar 5 from the Link MP pin. Collar 5 Link MP pin Front cover ASSY Fig. 3-14 (5) Close the Front cover ASSY. Open the MP tray, and release each Boss and remove the MP paper guide from the MP tray.
Page 187 (7) Open the Front cover ASSY. Release each Boss and remove the Front cover ASSY. Boss Boss Front cover ASSY Fig. 3-16  Common to all models (8) Remove the Support flap from the Front cover ASSY. Front cover ASSY Support flap Fig.
Page 188: Side Cover R
9.6 Side cover R (1) Remove the Taptite bind B M4x12 screw. (2) Release the Hooks A, B, and the Hook C on the Side cover R in order of the arrow A to C, and remove the Side cover R. Hooks A Taptite bind B M4x12 Side cover R...
Page 189: Fuser Cover
9.7 Fuser cover (1) Hold the Knobs on the Fuser cover, and pull the Fuser cover down. (2) Pull the Fuser cover in the direction of the arrow to remove it from the Bosses, and remove the Fuser cover. Boss Fuser cover Boss Boss...
Page 190: Inner Chute Assy
9.8 Inner chute ASSY (1) Pull down the Green envelope levers on both sides of the Fuser unit. (2) Remove the two Taptite bind B M4x12 screws, and remove the Inner chute ASSY. Fuser unit Green envelope lever Hooks Taptite bind B Fuser unit M4x12 Inner chute ASSY...
Page 191: Side Cover L / Speaker Harness Assy / Handset Holder Assy (For Models With Handset)
9.9 Side cover L / Speaker harness ASSY / Handset holder ASSY (For models with Handset) (1) Remove the Taptite bind B M4x12 screw. (2) Release the Hooks A, B, and the Hook C on the Side cover L in order of the arrow A to C, and remove the Side cover L.
Page 192 (5) Release the Speaker harness ASSY from the securing fixtures. (6) Remove the Speaker spring to remove the Speaker harness ASSY from the Side cover L. Speaker spring Speaker harness ASSY Side cover L Fig. 3-22 Harness routing: Refer to “1.
Page 193 <For models with Handset> (7) Remove the two Taptite bind B M4x12 screws. Release each Hook to remove the Handset holder ASSY from the Side cover L. Release the Hook harness from the securing fixtures. Taptite bind B M4x12 Hook harness Hook Hook Handset holder ASSY...
Page 194: Document Scanner Unit
9.10 Document scanner unit (1) Open the Document scanner unit. (2) Release the Joint parts of Pull arm L and Pull arm R from each Pull arm hinge. Remove the Pull arm L and the Pull arm R from each Pull arm guide. (3) Remove each Pull arm spring from the Pull arm L and the Pull arm R.
Page 195 (4) Remove the Screw cup M3x8 (black) screw to remove the FB ground harness and the Panel ground harness. Disconnect the Document scanner motor harness from the Main PCB ASSY. (5) Remove the Screw cup M3x8 (black) screw to remove the ADF ground harness. Disconnect the ADF sensor harness and the ADF motor harness from the Main PCB ASSY.
Page 196 (7) Release the Hook to remove the ADF FFC holder while opening the Document scanner unit. (8) Open the Document scanner unit approximately 30 degrees, and remove it by lifting it up. Pull out the Document scanner motor harness and the ADF sensor harness unit from each Hole on the Joint cover.
Page 197: Adf Unit (For Models With Adf)
9.11 ADF unit (For models with ADF) 9.11.1 ADF unit (1) Remove the ADF FFC holder from the Panel flat cable, the First side CIS flat cable, and the Second side CIS flat cable. (2) Remove the Taptite bind B M4x12 (black) screw from the Hinge ASSY L. Hinge ASSY L Taptite bind B M4x12 (black) Second side CIS flat cable...
Page 198 (3) Open the ADF unit. Release the Hook of the FFC holder ASSY, and remove the FFC holder ASSY from the Document scanner unit. (4) Lift the ADF unit, and remove the ADF unit from the Document scanner unit while pushing the Hook of the Hinge R.
Page 199 (6) Remove the three Taptite bind B M4x12 screws to remove the Hinge ASSY L from the ADF unit. Taptite bind B M4x12 ADF unit Hinge ASSY L Fig. 3-32 (7) Remove the Taptite cup B M3x10 screw to remove the Hinge R support and the Hinge R from the Hinge arm R.
Page 200: Adf Cover Assy / Document Stopper
9.11.2 ADF cover ASSY / Document stopper (1) Open the ADF cover ASSY. Release the two Bosses to remove the ADF cover ASSY from the ADF unit. (2) Release the two Bosses to remove the Document stopper from the ADF unit. ADF cover ASSY Document stopper Boss...
Page 201: Document Sub Tray
9.11.3 Document sub tray (1) Release each Hook to remove the Gear cover from the ADF unit. (2) Remove the two Taptite cup B M3x10 screws. Release each Hook to remove the ADF front cover from the ADF unit. Gear cover ADF front cover Hooks Hooks...
Page 202 (3) Open the Document sub tray to remove it from the ADF unit by aligning each Boss position. Boss Document sub tray Boss ADF unit Boss Fig. 3-36 3-45 Confidential...
Page 203: Document Separate Roller Assy
9.11.4 Document separate roller ASSY (1) Release the Lock of the Conductive bushing to remove the Document separate roller ASSY from the ADF unit. Conductive bushing Document separate roller ASSY ADF unit Lock Conductive bushing Fig. 3-37 3-46 Confidential...
Page 204: Adf Separation Holder Assy
9.11.5 ADF separation holder ASSY (1) Remove the Taptite cup B M3x10 screw to remove the ADF separation holder ASSY from the ADF unit. Taptite cup B M3x10 ADF separation holder ASSY ADF unit Fig. 3-38 3-47 Confidential...
Page 205: Second Side Cis Unit / Second Side Cis Flat Cable (Only For Models With Duplex Scanning)
9.11.6 Second side CIS unit / Second side CIS flat cable (Only for models with duplex scanning) (1) Remove the six Taptite cup B M3x10 screws to remove the Upper document chute from the ADF unit. Taptite cup B M3x10 Taptite cup B M3x10 Upper document chute ADF unit...
Page 206 (2) Remove the Screw cup M3x6 (black) screw to remove the ADF ground harness and the Ground spring from the Lower document chute. (3) Release the ADF sensor harness unit from the securing fixtures, and pull it out from the Hole of the Document cover.
Page 207 (5) Release the Second side CIS flat cable from the securing fixtures. (6) Lift the Hook and slide the Second side scanner glass strip in the direction of the arrow 6a. Lift the left end of the Second side scanner glass strip to remove it in the direction of the arrow 6b.
Page 208 (7) Remove the Second side CIS unit from the Lower document chute, and disconnect the Second side CIS flat cable from the Second side CIS unit. (8) Remove the CIS spacer R and the CIS spacer F from the Second side CIS unit. CIS spacer F Second side CIS unit CIS spacer R...
Page 209 Assembling Note: • Fold the Second side CIS flat cable at the positions described below. <Second side CIS side> 8 (The adhesive range on Reinforcing plate) Reinforcing plate 15 (Reinforcing plate) 45° 45° Mountain fold Valley fold Reinforcing plate <Main PCB side> Fig.
Page 210: Document Cover Assy (For Models Without Adf)
9.12 Document cover ASSY (For models without ADF) (1) Release the Hooks of the Hinge L and the Hinge R to remove the Document cover ASSY by lifting it up. Document cover ASSY Hinge R Hooks Hinge L Fig. 3-45 3-53 Confidential...
Page 211 (2) Remove the three Taptite cup B M3x10 screws to remove the Hinge arm L and the Hinge L from the Document cover ASSY. (3) Remove the three Taptite cup B M3x10 screws to remove the Hinge arm R and the Hinge R from the Document cover ASSY.
Page 212: Panel Unit (For Touch Panel Models)
9.13 Panel unit (For Touch panel models) 9.13.1 Panel unit (1) Remove the four Taptite cup B M3x10 screws. (2) Release each Hook to remove the Panel unit. Disconnect the Panel flat cable from the Panel PCB ASSY. Note: • When removing the Panel unit, DO NOT pull the Panel unit strongly because it is connected to the Panel flat cable.
Page 213: Panel Pcb Assy / Nfc Pcb Assy / Lcd
9.13.2 Panel PCB ASSY / NFC PCB ASSY / LCD (1) Disconnect the Key flat cable from the Panel PCB ASSY, and release it from the securing fixtures. (2) Release the Hook A to remove the LCD pressure plate from the Panel unit. (3) Remove the four Taptite cup B M3x10 screws to remove the Shield plate cover from the Panel unit.
Page 214: Touch Panel Assy
9.13.3 Touch panel ASSY (1) Remove the four Taptite cup B M3x10 screws to remove the Panel key PCB presser from the Panel unit. (2) Disconnect the Touch panel flat cable from the Key PCB ASSY. Remove the Key PCB ASSY from the Panel unit.
Page 215: Panel Unit (For Non-Touch Panel Models)
9.14 Panel unit (For Non-touch panel models) 9.14.1 Panel unit (1) Remove the four Taptite cup B M3x10 screws. (2) Release each Hook to remove the Panel unit. Disconnect the Panel flat cable from the Panel PCB ASSY. Note: • When removing the Panel unit, DO NOT pull the Panel unit strongly because it is connected to the Panel flat cable.
Page 216: Panel Pcb Assy
9.14.2 Panel PCB ASSY (1) Release each Hook to remove the Panel PCB ASSY from the Panel unit. (2) Reverse the Panel PCB ASSY. Release the Lock to disconnect the LCD flat cable from the Panel PCB ASSY. Panel PCB ASSY LCD flat cable Lock Hook...
Page 217: Lcd
9.14.3 LCD (1) Remove the Rubber key L and the Rubber key R from the Panel unit. (2) Release each Hook A to remove the Backlight guide from the Panel unit. (3) Remove the Diffusion film. (4) Release the Hook B to remove the LCD from the Backlight guide. (5) Remove the LCD sheet from the Panel unit.
Page 218: Panel Flat Cable / First Side Cis Unit / First Side Cis Flat Cable
9.15 Panel flat cable / First side CIS unit / First side CIS flat cable Note: • Disassemble in a dust-free location. (1) Remove the six Taptite bind B M4x12 screws to remove the Document scanner top cover from the Document scanner bottom cover ASSY. (2) Release the Panel flat cable from the securing fixtures, and remove it from the Document scanner bottom cover ASSY.
Page 219 Assembling Note: • Fold the Panel flat cable at the positions described below. <Main PCB side> Reinforcing plate 45° 45° 45° 45° Mountain fold Valley fold Reinforcing plate <Panel side> Fig. 3-54 3-62 Confidential...
Page 220 Assembling Note: • If you replaced the First side CIS unit, refer to “5. IF YOU REPLACE THE ADF UNIT, FIRST SIDE CIS UNIT, SECOND SIDE CIS UNIT OR DOCUMENT SCANNER UNIT” in Chapter 4 to configure settings. (3) Slide the CIS carriage slowly to the location shown in the figure below. (4) Open the First side CIS unit at 90 degrees to the CIS carriage, and remove it from the CIS carriage.
Page 221 (5) Remove the First side CIS flat cable from the back of the CIS carriage. Note: • Be sure to replace the Double-sided tape with a new one, after taking off the Double-sided tape from the CIS carriage. (6) Remove the First side CIS flat cable from the Document scanner bottom cover ASSY. Double-sided tape CIS carriage First side CIS...
Page 222 <Attachment Procedure> 1) Fold the First side CIS flat cable as shown the illustration below. <CIS side> 30±1 Reinforcing plate 242±1 381±1 478±1 Flat core 45° 45° Mountain fold Valley fold Reinforcing plate <Main PCB side> Fig. 3-57 3-65 Confidential...
Page 223 2) Attach the two pieces of Double-sided tape to the Document scanner bottom cover ASSY at the positions shown in the figure below. (If the old Double-sided tape remains attached, replace it with a new one.) Double-sided tapes Document scanner bottom cover ASSY Fig.
Page 224 7) Pass the First side CIS flat cable through the Flat core. 8) Peel the release liner of the two pieces of Double-sided tape attached to the Document scanner bottom cover ASSY, and secure the First side CIS flat cable with the tapes as shown in the figure below.
Page 225: Modem Flat Cable / Modem Pcb Assy
9.16 Modem flat cable / Modem PCB ASSY (1) Remove the two Screw cup M3x8 (black) screws, and release the Modem ground harness LVPS from the securing fixtures. Screw cup M3x8 (black) Modem ground harness LVPS Modem ground harness LVPS Screw cup M3x8 (black) Rib A Rib B...
Page 226 (2) Remove the two Screw cup M3x8 (black) screws, and release the Modem ground harness main from the securing fixtures. (3) Disconnect the Modem flat cable from the Main PCB ASSY and the Modem PCB ASSY, and remove it from the Double-sided tape to pull it out from the hole of the Joint cover ASSY. (4) Remove the two Taptite bind B M4x12 screws to remove the Modem shield plate.
Page 227: Joint Cover Assy
9.17 Joint cover ASSY (1) Remove the four Taptite bind B M4x12 screws. (2) Release the Hooks in order of the Hook A to D, and remove the Joint cover ASSY in the direction of the arrow. Hook C Joint cover ASSY Taptite bind B M4x12 Taptite bind B M4x12...
Page 228: Fuser Unit
9.18 Fuser unit (1) Release the Fuser unit heater harness from the securing fixtures, and disconnect it from the LVPS-heater harness. <Back side> Fuser unit heater harness LVPS-heater harness Fig. 3-64 Harness routing: Refer to “8. Rear side of the machine”.
Page 229 (4) Remove the two Taptite pan B M4x14 screws, and remove the Fuser unit. <Back side> Taptite pan B M4x14 Fuser unit Fig. 3-66 Note: • DO NOT apply a physical impact or vibration to the Fuser unit. • DO NOT touch the roller and the electrodes to prevent breakage of the Fuser unit. Fig.
Page 230: Low-Voltage Power Supply Pcb Assy
9.19 Low-voltage power supply PCB ASSY When removing the Low-voltage power supply, DO NOT touch it within 3 minutes after disconnecting the AC cord as it may cause WARNING an electric shock due to the electric charge accumulated in the capacitor.
Page 231 (2) Remove the Screw pan M4x8 screw, the Washer spring 2-4, and the Washer 5, and remove the Ground harness from the LVPS shield plate. (3) Release the Ground harness from the securing fixtures. (4) Remove the Power cord from the Mounting position and release it from the securing fixtures.
Page 232: New Toner Sensor Pcb Assy
9.20 New toner sensor PCB ASSY (1) Disconnect the New toner sensor flat cable from the High-voltage power supply PCB ASSY, and release the Hook to remove the New toner sensor PCB ASSY. Disconnect the Registration front/rear sensor harness from the New toner sensor PCB ASSY. Registration front/rear sensor harness New toner sensor PCB ASSY New toner sensor flat cable...
Page 233: Hvps Flat Cable / High-Voltage Power Supply Pcb Assy
9.21 HVPS flat cable / High-voltage power supply PCB ASSY (1) Disconnect the HVPS flat cable from the High-voltage power supply PCB ASSY. Disconnect the HVPS flat cable from the Main PCB ASSY, and release it from the securing fixtures. Note: •...
Page 234 Assembling Note: • Fold the HVPS flat cable at the positions described below. <High-voltage power supply PCB side> Electrode 45° 45° 20° 20° 45° Mountain fold Reinforcing tape Valley fold <Main PCB side> Fig. 3-72 3-77 Confidential...
Page 235: Fan
9.22 Fan (1) Release the Fan harness from the securing fixtures. (2) Release each Hook to remove the Fan, and pull out the Fan harness from the Hole. Hook <Back side> Hole Fan harness Label Hook Fig. 3-73 Harness routing: Refer to “8.
Page 236: Toner Box Relay Pcb Assy (For Models With Toner Box)
9.23 Toner box relay PCB ASSY (For models with toner box) MP relay PCB ASSY (For MP models) Toner box new PCB ASSY (For models with toner box)  Toner box models (1) Disconnect the Toner box relay flat cable from the Main PCB ASSY. (2) Release the Toner sensor harness, the Toner box new harness, and the Toner box solenoid harness from the securing fixtures.
Page 237  MP models (1) Disconnect the MP relay flat cable from the Main PCB ASSY. (2) Release the MP sensor harness and the MP paper empty sensor harness from the securing fixtures. (3) Remove the Taptite bind B M4x12 screw. Remove the MP relay PCB ASSY, and disconnect each harness from the MP relay PCB ASSY.
Page 238: Laser Unit Flat Cable / Laser Unit
9.24 Laser unit flat cable / Laser unit (1) Disconnect the Laser unit flat cable from the Main PCB ASSY and the Laser unit, and release it from the securing fixtures. Note: • After disconnecting flat cables, check that each cable is not damaged at its end or short-circuited.
Page 239 Assembling Note: • Fold the Laser unit flat cable at the positions described below. Mountain fold Valley fold 234±5 71±1 108±1 <Main <Laser PCB side> unit side> 45° Electrode Electrode Fig. 3-77 Assembling Note: • After the replacement, refer to “3.
Page 240: Filter
9.25 Filter (1) Release the Hook to remove the Filter from the Air duct. Filter Hook Air duct Fig. 3-79 3-83 Confidential...
Page 241: Wireless Lan Pcb (Only For Wireless Network Models)
9.26 Wireless LAN PCB (Only for wireless network models) (1) Remove the Tape on the Wireless LAN PCB, and disconnect the Wireless LAN PCB from the Main PCB ASSY. Tape Wireless LAN PCB Hole Main PCB ASSY <Back side> Tape Wireless LAN PCB Fig.
Page 242: Roller Holder Assy
9.27 Roller holder ASSY (1) Push the Link arm in the direction of the arrow A. Rotate the Roller holder ASSY, and release the Boss. (2) Slide the Roller holder ASSY in the direction of the arrow B, and remove it from the Shaft. Remove the Roller holder ASSY.
Page 243: Main Pcb Assy
9.28 Main PCB ASSY (1) Disconnect all harnesses and flat cables from the Main PCB ASSY. Cartridge sensor harness Main PCB ASSY (Only for models without Toner box) Front cover sensor harness Paper feed Paper feed motor flat cable sensor harness T1 clutch harness LVPS harness Registration clutch harness...
Page 244: T1 Clutch / Registration Clutch
9.29 T1 clutch / Registration clutch  Manual feed models (1) Release the T1 clutch harness and the Registration clutch harness from the securing fixtures. (2) Release the Hook, and remove the T1 clutch. (3) Release the Hook, and remove the Registration clutch. Registration clutch Registration Hook...
Page 245  MP models (1) Release the Registration clutch harness from the securing fixtures. (2) Remove the Collar 4 to remove the Registration clutch. Collar 4 Registration clutch Registration clutch harness Fig. 3-86 (3) Release the T1 clutch harness and the Paper feed sensor harness from the securing fixtures.
Page 246 Assembling Note: • When securing the T1 clutch harness and the Registration clutch harness, check that there is no harness slack. • Attach the Rotation stopper of the T1 clutch by engaging it with the Pin of the machine as shown in the figure below. •...
Page 247: Frame L Unit
9.30 Frame L unit  Manual feed models (1) Remove the two Taptite bind B M4x12 screws and the Screw pan (S/P washer) M3x12DB screw, and remove the Front chute ASSY. (2) Release the LVPS harness, the Cartridge sensor harness (only for models without Toner box) and the Paper feed sensor harness from the securing fixtures.
Page 248  MP models (6) Remove the three Taptite bind B M4x12 screws to remove the Front chute ASSY. Pull out the MP paper empty sensor harness from the Hole of the Frame L unit. (7) Release the LVPS harness from the securing fixtures. (8) Remove the Regist FG spring from the Motor drive sub ASSY and the Conductive bushing 5.
Page 249  Common to all models (11) Remove the Taptite bind B M4x12 (11a) screw (for securing the Under bar), the Taptite cup S M3x6 SR (11b) screw (for securing the Chute ground plate), the Taptite bind B M4x12 (11c) screw (for securing the Registration chute), and the Taptite cup S M3x8 SR (11d) screw (for securing the Laser L FG plate).
Page 250: Paper Feed Motor / Paper Feed Motor Flat Cable
9.31 Paper feed motor / Paper feed motor flat cable (1) Release the Paper feed motor flat cable and the Front cover sensor harness from the securing fixtures. (2) Remove the Taptite bind B M4x12 screw. Release the Hook, and slide the Flat cable guide in the direction of the arrow to remove it from the Motor drive sub ASSY.
Page 251 Assembling Note: • If you removed the Motor drive sub ASSY while the Fuser unit was attached on the machine, remove the Fuser unit once (refer to “9.18 Fuser unit”) and reattach it after attaching the Motor drive sub ASSY. The Conductive leaf spring of the Fuser unit may be deformed by the Calking shaft.
Page 252: Fuser Gear 64R/36R
9.32 Fuser gear 64R/36R (1) Remove the Fuser gear 64R/36R from the Frame L unit. Fuser gear 64R/36R Frame L unit Fig. 3-95 3-95 Confidential...
Page 253: Toner Sensor Pcb Assy (Only For Models With Toner Box)
9.33 Toner sensor PCB ASSY (Only for models with Toner box) (1) Release the Toner box solenoid harness and the Toner sensor harness from the securing fixtures. (2) Remove the two Taptite bind B M4x12 screws. Release the Hook to remove the Toner box drive cover from the Frame L unit.
Page 254: Front Cover Sensor
9.34 Front cover sensor (1) Remove the Gear toner box idle 32 and the Sector gear toner box from the Holder toner box. (Only for models with Toner box) (2) Remove the Spring sector gear toner box from the Hook of Holder toner box and the Hook of Lever solenoid.
Page 255: Eject Sensor Pcb Assy
9.35 Eject sensor PCB ASSY (1) Remove the Taptite cup S M3x8 SR screw and the Screw pan (S/P washer) M3x12DB screw. Lift the upper side of the Main shield plate up to remove it from the Pin, and pull out the Main shield plate in the direction of the arrow to remove it from the Rib of the Frame L unit.
Page 256 (2) Release the Hook A, and remove the Eject sensor PCB ASSY from the Pin of the Frame L unit. (3) Release the Back cover/duplex tray sensor harness from the securing fixtures. (4) Release the Hook B, and remove the DX sensor stopper 2 from the Frame L unit. (5) Release each Hook C, and remove the Back cover/duplex tray sensor from the Frame L unit.
Page 257: Registration Front/Rear Actuator Holder Assy
9.36 Registration front/rear actuator holder ASSY Note: • As the Under bar is easy to bend, be careful to handle it. (1) Release the Hook part of the Under R FG wire from the LVPS shield plate. (2) Raise the Laser R FG plate slightly to remove it from the Pin. (3) Remove the Taptite cup S M3x8 SR screw and the Taptite bind B M4x12 screw, pull out the right side of the LVPS shield plate in the direction of the arrow A to remove it from the Pin.
Page 258 (4) Release the Registration front/rear sensor harness and the LVPS harness from the securing fixtures. (5) Remove the Taptite cup S M3x6 SR screw and the two Taptite bind B M4x12 screws to remove the Frame R unit. Pull out the Registration front/rear sensor harness from the Hole. Registration front/rear sensor harness Frame R unit Taptite bind B M4x12...
Page 259 (6) Remove the Taptite bind B M3x10 screw. Release each Hook, and remove the Registration front/rear actuator holder ASSY from the Registration chute. Pull out the Registration front/ rear sensor harness from the Hole. Hook Taptite bind B M3x10 Registration front/rear actuator holder ASSY Hook Hooks...
Page 260: Paper Feed Roller Assy / Paper Feed Sensor Pcb Assy
9.37 Paper feed roller ASSY / Paper feed sensor PCB ASSY (1) Release each Hook of the Paper feed sensor cover to remove the Paper feed sensor cover. (2) Remove the Paper feed actuator spring from the Hook of the Paper feed actuator and the Hook of the Paper feed frame ASSY.
Page 261: Chapter 4 Adjusting And Updating Settings As Required After Parts Replacement
CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT 1. IF YOU REPLACE THE MAIN PCB ASSY  What to do after replacement • Installing Firmware (Sub firmware and main firmware) • Initializing the EEPROM of the Main PCB ASSY (Function code 01) •...
Page 262: Installing Firmware (Sub Firmware And Main Firmware)
1.1 Installing Firmware (Sub firmware and main firmware) 1.1.1 Checking firmware version Check whether the firmware installed on the machine is the latest version. If it is the latest version, there is no need to install the firmware. If it is not, be sure to install the firmware to the machine as described in “1.1.2 Installing firmware”.
Page 263: Installing Firmware
“Brother Maintenance USB Printer”. (4) Drag and drop the required program file (ex: LZXXXX_$.djf) in the same folder onto the Brother Maintenance USB Printer icon. The file is loaded to the machine, and installing to the flash ROM starts. (5) When installing is completed, the machine restarts and returns to the ready state automatically.
Page 264: Setting By Spec, Setting Serial Number And Entering Adjusted Value Of Laser Unit
1.3 Setting by Spec, Setting Serial Number and Entering Adjusted Value of Laser Unit <Operating Procedure> (1) Follow the procedure below to enter the maintenance mode. Non-touch panel models Touch panel models 1) Press the [Menu] and then the [Start] 1) Press and hold the for approximately while the machine is in the ready...
Page 265 (8) Click the [Input information] shown as (E). The Input Information screen shown on the right appears. (9) Click the [Setting by Spec] in the box (F). Set Spec Code screen appears. Enter the 4-digit country code in the box (G), and click the [Set] shown as (H).
Page 266: Adjusting Touch Panel (Function Code 61)(Touch Panel Models Only)
“1.3.23 Configure for country/region and model (Function code 74)” in Chapter 5. Please contact Brother distributors for the latest information. • When the supply PCB is replaced with a new one, the machine automatically enters maintenance mode by turning it ON.
Page 267: If You Replace The Low-Voltage Power Supply Pcb Assy
2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY  What to do after replacement • Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB (Function code 88)  What you need to prepare None 2.1 Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB (Function code 88) Refer to “1.3.30 Reset irregular power supply detection counter of low-voltage power supply...
Page 268: If You Replace The Laser Unit
3. IF YOU REPLACE THE LASER UNIT  What to do after replacement • Entering Adjusted Value of Laser Unit  What you need to prepare (1) One USB cable ® (2) Create a temporary folder on the C drive of the computer (Windows XP or later).
Page 269: Entering Adjusted Value Of Laser Unit
3.1 Entering Adjusted Value of Laser Unit <Operating Procedure> (1) Follow the procedure below to enter the maintenance mode. Non-touch panel models Touch panel models 1) Press the [Menu] and then the [Start] 1) Press and hold the for approximately while the machine is in the ready five seconds while the machine is in the state.
Page 270 (9) Click the [OK] shown as (J). The Execute Setting screen shown on the right appears and the laser adjusted value is written to the machine. (10) Click the [OK] shown as (L) and close the Execute Setting screen. (11) Click the [Cancel] shown as (K) and close the Input information screen.
Page 271: If You Replace The Panel Unit Or Panel Control Pcb
4. IF YOU REPLACE THE PANEL UNIT OR PANEL CONTROL PCB  What to do after replacement • Adjusting Touch Panel (Function code 61) (Touch panel models only) • Checking LCD Operation (Function code 12)  What you need to prepare (Touch panel models only) (1) Touch pen 4.1 Adjusting Touch Panel (Function code 61) (Touch panel models only)
Page 272: If You Replace The Adf Unit, First Side Cis Unit, Second Side Cis Unit Or Document Scanner Unit
5. IF YOU REPLACE THE ADF UNIT, FIRST SIDE CIS UNIT, SECOND SIDE CIS UNIT OR DOCUMENT SCANNER UNIT  What to do after replacement • Acquiring White Level Data (Function code 55) • Scanning and Printing Check 5.1 Acquiring White Level Data (Function code 55) Acquire white level data as described in “1.3.16 Acquire white level data and set CIS scan area (Function code 55)”...
Page 273: Chapter 5 Service Functions
CHAPTER 5 SERVICE FUNCTIONS 1. FUNCTION CODE Maintenance mode is exclusively designed for checking, setting and adjusting the machine using the keys on the control panel. Using maintenance mode functions, you can conduct operational checks of sensors or test printing, display the log information or error codes, and change the worker switches (WSW) etc.
Page 274: Method Of Entering End-User Accessible Maintenance Mode
1.1.2 Method of entering end-user accessible maintenance mode The maintenance mode functions should only be accessed by service personnel. However, end users are allowed to use some of these functions under the guidance of service personnel over the phone. End users can only use the functions shaded in the table “1.2 List of Maintenance Mode Functions”...
Page 275: List Of Maintenance Mode Functions
1.2 List of Maintenance Mode Functions Function Function Refer to: code Initialize EEPROM parameters 1.3.1 (5-4) Transition to shipping state 1.3.2 (5-5) ADF performance test 1.3.3 (5-6) Print quality test pattern 1.3.4 (5-7) Set worker switches (WSW) 1.3.5 (5-8) Print worker switch (WSW) setting data 1.3.5 (5-8) Check LCD operation 1.3.6 (5-11)
Page 276: Details Of Maintenance Mode Functions
1.3 Details of Maintenance Mode Functions 1.3.1 Initialize EEPROM parameters (Function code 01, 91) <Function> This function is used to initialize the setting values for operation parameters, user switches, and worker switches (WSW) registered in the EEPROM. Entering function code 01 initializes most EEPROM areas.
Page 277: Transition To Shipping State (Function Code 03)
1.3.2 Transition to shipping state (Function code 03) The function code 03 includes following functions: Check sum information display for soft switch, Default special operation setting, and Resetting to factory shipping state. Check sum information display for soft switch is used by sales and production, not by servicemen. Servicemen only use other two functions: Default special operation setting and Resetting to factory shipping state.
Page 278: Adf Performance Test (Function Code 08)
 Transfer to the shipping state <Function> This function is to transfer the machine to the shipping state when used new spare main PCB for repair, etc. When not perform this function to the new spare main PCB and leave, some software will be unavailable such as MPS applications or BrAdmin tool.
Page 279: Print Quality Test Pattern (Function Code 09)
1.3.4 Print quality test pattern (Function code 09) <Function> This function is used to print test patterns to check any missing image and print quality. <Operating Procedure> (1) Press the [0], and then the [9] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 09”...
Page 280: Set Worker Switches (Wsw) And Print Worker Switch Setting Data (Function Code 10, 11)
1.3.5 Set worker switches (WSW) and print worker switch setting data (Function code 10, 11) [1] Set worker switches (Function code 10) <Function> The worker switches shown in the table below can be used to set the function to satisfy various requirements.
Page 281 Function Function WSW71 Change of the setting is prohibited WSW85 Function setting 29 WSW72 Change of the setting is prohibited WSW86 Change of the setting is prohibited WSW73 Change of the setting is prohibited WSW87 Change of the setting is prohibited WSW74 ADF stop control WSW88...
Page 282 [2] Print worker switch (WSW) setting data (Function code 11) <Function> This function is used to print the worker switch settings and details. <Operating Procedure> (1) Press the [1] twice in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 11”...
Page 283: Check Lcd Operation (Function Code 12)
1.3.6 Check LCD operation (Function code 12) <Function> This function is used to check that the LCD on the control panel is operating normally. <Operating Procedure> For models with touch panel (1) Press the [1], and then the [2] in the initial state of maintenance mode. LCD displays shown as the chart below.
Page 284 For models without touch panel (1) Press the [1], and then the [2] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 12” on the LCD and press the [OK]. Displays shown in the figure below appear on the LCD. (2) Each press of the [Start] cycles through the displays as shown in the figure below.
Page 285: Check Control Panel Key Operation (Function Code 13)
To cancel operation and return to the initial state of maintenance mode, press the [X] or [Stop].  Order of pressing keys DCP-L2510D/L2510DR/L2511D/L2535D/L2536D/B7500D(Except CHN)/L2531DW/ DCP-L2532DW/L2535DW/L2537DW/L2550DN/L2550DNR/L2250DW/L2551DW/L2552DN, HL-L2390DW Fig. 5-5 DCP-7090/7095D/7190DN/7195DW/B7500D(CHN)/B7530DN Fig. 5-6 5-13 Confidential...
Page 286 MFC-L2690DW/L2710DN/L2710DNR/L2710DW/L2710DWR/L2712DN/L2712DW/ MFC-L2713DW/L2715D/L2715DW/L2716D/L2716DW/L2717DW/B7715DW L M N O P Q R S T U V W Fig. 5-7 MFC-7390/7490D/B7700D/B7720DN/7890DN L M N O P Q R S T U V W Fig. 5-8 MFC-L2730DW/L2730DWR/L2732DW/L2750DW/L2750DWR/L2751DW/L2770DW/ MFC-L2771DW/7895DW, HL-L2395DW Fig. 5-9 5-14 Confidential...
Page 287: Display Software Version (Function Code 25)
1.3.8 Display software version (Function code 25) <Function> This function is used to check the version information of the firmwares and programs, or check sum information. <Operating Procedure> (1) Press the [2], and then the [5] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 25”...
Page 288: Check Sensor Operation (Function Code 32)
1.3.9 Check sensor operation (Function code 32) <Function> This function is used to check whether the sensors, solenoids, and clutches are operating normally. <Operating Procedure> (1) Press the [3], and then the [2] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 32”...
Page 289  Location of sensors ADF cover sensor Document detection sensor Document scanning position sensor Hook switch New toner sensor PCB ASSY Toner sensor Eject sensor PCB ASSY Registration PCB ASSY front sensor Back cover/duplex tray sensor Toner box relay PCB ASSY Registration rear sensor MP relay PCB ASSY Paper feed sensor PCB ASSY...
Page 290: Display Lan Connection Status (Function Code 33)
1.3.10 Display LAN connection status (Function code 33) <Function> This function is used to check the connection status of the wired LAN. <Operating Procedure> (1) Press the [3] twice in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 33”...
Page 291: Set Pc Print Functions (Function Code 43)
1.3.11 Set PC print functions (Function code 43) <Function> This function is used to change the settings of the various print functions summarized in the table below. <Operating Procedure> (1) Press the [4], and then the [3] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 43”...
Page 292 Description Set value Default Orientation Print direction setting Portrait/Landscape Portrait P-Pos X-Offset Print position offset in X -500 to 500 (1/300 dpi) (landscape) direction (1/300 dpi) P-Pos Y-Offset Print position offset in Y -500 to 500 (1/300 dpi) (portrait) direction (1/300 dpi) Auto FF Auto Form Feed setting...
Page 293  Detail description Detail description Manual Feed Valid for printing from the computer, and for printing NetWorkConfig, TestPrint, Fontlist, or Configuration from the panel. When the tray is selected on the computer, the setting on the computer supersedes the setting on the LCD. Resolution Valid for printing from the computer only.
Page 294 Detail description P-Pos Y-Offset Sets the print position offset in the Y (portrait) direction. Valid for printing from the computer only. When the Y-Offset is set on the computer, the setting on the computer supersedes the setting on the LCD. Auto FF Sets ON or OFF for AutoFF (automatic form feed).
Page 295: Change Usb No. Return Value / Adjust Left-End Print Position
1.3.12 Change USB No. return value / Adjust left-end print position / Adjust upper-end print position / Change ON/OFF setting for lower case compensation / Change ON/OFF setting for fixation strength improvement (Function code 45)  Change USB No. return value <Function>...
Page 296  Adjust left-end print position <Function> In the event that the left-end print start position deviates, use this function to adjust the position left and right. The adjustable range is -100 to 750 (1 unit = 0.084 mm = 300 dpi). (Shifted to the left when the value is negative) <Operating Procedure>...
Page 297: Adjust Upper-End Print Position
 Adjust upper-end print position <Function> In the event that the upper-end print start position deviates, use this function to adjust the position up and down. Adjustable range is -50 to 50 (1 unit = 0.084 mm = 300 dpi). (Shifted down when the value is negative) <Operating Procedure>...
Page 298: Change On/Off Setting For Lower Case Compensation
 Change ON/OFF setting for lower case compensation <Function> This function is used to expand and compensate the white lower case which is easily collapsed by the pattern matching. <Operating Procedure> (1) Press the [4], and then the [5] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 45”...
Page 299: Adjust Printable Range For Each Speed Level (Function Code 46)
1.3.13 Adjust printable range for each speed level (Function code 46) <Function> This function is to adjust the printing position in horizontal / vertical direction. Position can be adjusted in 11 steps from -0.5% to 0.5% (Printing width gets smaller when the value is negative).
Page 300  Print adjustment test pattern Fig. 5-11 5-28 Confidential...
Page 301: Transfer Received Fax Data / Log Information (Fax Models Only) (Function Code 53)
1.3.14 Transfer received fax data / log information (fax models only) (Function code 53) <Function> When the machine is unable to print the received fax data due to an error in the printing mechanism, this function is used to transfer the data to another machine. The communication management report, communication list, or machine log information can also be transferred.
Page 302  Cover page example Job number to identify the transmission Total number of pages to be transferred Station ID registered in the sender machine Fax number of the sender machine Telephone number of the sender machine Transfer date and time Model code Boot ROM information ROM information...
Page 303: Fine-Tune Scanning Position (Function Code 54)
1.3.15 Fine-tune scanning position (Function code 54) <Function> This function is used to adjust the scanning start/end positions. <Operating Procedure> • For models with ADF and keypad Press the [5], and then the [4] in the initial state of maintenance mode. “SCAN START ADJ”...
Page 304: Acquire White Level Data And Set Cis Scan Area (Function Code 55)
1.3.16 Acquire white level data and set CIS scan area (Function code 55) <Function> This function is used to acquire the white level of the CIS unit, and store this data and the scan area in the EEPROM of the main PCB. <Operating Procedure>...
Page 305: Check Toner Cartridge (Models With Cartridge Sensor Only) (Function Code 57)
1.3.17 Check toner cartridge (Models with cartridge sensor only) (Function code 57) <Function> This function is used to acquire the toner cartridge data and check whether the country code is right and it is compatible with the machine and capacity. Also checks the toner cartridge version and the continuity (contact).
Page 306  Destination check (1) Press the [5], and then the [7] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 57” on the LCD and press the [OK]. “IC_ACT ALL” is displayed on the LCD. (2) Press the [3].
Page 307: Adjust Touch Panel (Function Code 61)
This adjustment requires a touch pen with a thin tip. A commercially available touch pen designed for electronic dictionaries or personal digital assistance (PDA) can be used. If one is not available at hand, order a “Touch pen” from Brother's parts list. <Operating Procedure>...
Page 308: Continuous Print Test (Function Code 67)
1.3.19 Continuous print test (Function code 67) <Function> This function is used to conduct paper feed and eject tests while printing patterns. <Operating Procedure> (1) Press the [6], and then the [7] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 67”...
Page 309 <Paper size> Description SELECT: A4 SELECT: LETTER Letter SELECT:ISOB5 ISO B5 SELECT:JISB5 JIS B5 SELECT:A5 SELECT:A5L SELECT:JISB6 JIS B6 SELECT:A6 SELECT:EXECUTE Executive size SELECT:LEGAL Legal size SELECT:FOLIO Folio size SELECT:HAGAKI Postcard size * Supports only for TRAY1 SX, MP TRAY SX and AUTO SX. <Print specification>...
Page 310 <Print page> Description SELECT: 1PAGE 1-page printing SELECT: CONTINUE Continuous printing SELECT: JOB Intermittent printing per job * Selectable only when the printing pattern is set to “K1%” or “K5%”, and the print type is not set to the manual feed slot. <Number of pages per job>...
Page 311  Print pattern K 100% K 1% W 100% K 5% Lattice Total Fig. 5-16 5-39 Confidential...
Page 312: Print Frame Pattern (Single-Side Printing) (Function Code 69)
1.3.20 Print frame pattern (single-side printing) (Function code 69) <Function> This function is used to print the frame pattern on single side of the paper to check for printing flaws and omission. <Operating Procedure> (1) Set the paper specified in the default paper settings (A4 or Letter) to the paper tray. (2) Press the [6], and then the [9] in the initial state of maintenance mode.
Page 313: Print Frame Pattern (Duplex Printing) (Function Code 70)
1.3.21 Print frame pattern (duplex printing) (Function code 70) <Function> This function is used to print the frame pattern on both sides of the paper to check for printing flaws and omission. <Operating Procedure> (1) Set the paper specified in the default paper settings (A4 or Letter) to the paper tray. (2) Press the [7], and then the [0] in the initial state of maintenance mode.
Page 314 1.3.22 Test pattern (Function code 71) <Function> This function is used to print the test pattern to check whether the develop roller or exposure drum is dirty or damaged. <Operating Procedure> (1) Press the [7], and then the [1] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 71”...
Page 315 <Print specification> Description SELECT: PLAIN Plain paper SELECT: THICK Plain paper (thick) SELECT: THIN Plain paper (thin) SELECT:THICKER Plain paper (thicker) SELECT:RECYCLED Recycled paper SELECT:BOND Bond paper SELECT:LABEL Label SELECT:ENVELOPE Envelope SELECT:ENVTHIN Envelope (thin) SELECT:ENVTHICK Envelope (thick) SELECT:HAGAKI Postcard <Print type> Description SELECT:SX Single-side printing from paper tray...
Page 316: Test Pattern (Function Code 71)
 Test pattern Fig. 5-19 5-44 Confidential...
Page 317: Configure For Country/Region And Model (Function Code 74)
If there is no entry for one minute or longer, the machine returns to the initial state of maintenance mode automatically, regardless of the display status.  Setting by spec code list MODEL Country Code Country Code (Detail) DCP-7090 China 0020 DCP-7095D China 0120...
Page 318 MODEL Country Code Country Code (Detail) DCP-L2510D France/Belgium/ 1055 Belgium 1008 Netherlands France 7004 Netherlands 9004 Germany 0053 Austria 0014 Iberia 1004 Portugal 1004 Spain 1004 Italy 1004 Pan-Nordic 1004 Denmark 1004 Finland 1004 Norway 1004 Sweden 1004 Others 1004 1004 DCP-L2510DR Russia...
Page 319 MODEL Country Code Country Code (Detail) DCP-L2532DW CEE-General 1050 Bulgaria 1050 Croatia 1050 Czech 1050 Hungary 1050 Poland 1050 Romania 1050 Slovakia 1050 Slovenia 1050 Others 1050 DCP-L2535D Asia 0140 Asia/Singapore 0140 Gulf 0141 Japan 0047 Philippines 0121 DCP-L2535DW Asia 0040 Asia/Singapore 0040 DCP-L2536D...
Page 320 MODEL Country Code Country Code (Detail) DCP-L2552DN CEE-General 1350 Bulgaria 1350 Croatia 1350 Czech 1350 Hungary 1350 Poland 1350 Romania 1350 Slovakia 1350 Slovenia 1350 Others 1350 FAX-L2710DN Japan 0147 HL-L2390DW Canada 0002 U.S.A 0001 HL-L2395DW Australia 0006 Canada 0002 U.S.A 0001 MFC-7390...
Page 321 MODEL Country Code Country Code (Detail) MFC-L2710DW Argentina 0A36 Australia 0A06 Belgium 0A08 Brazil 0A42 Canada 0A02 Chile 0A36 Argentina 0A36 France 0A05 Germany 0A53 Austria 0A14 Iberia 0A65 Portugal 0A18 Spain 0A15 Israel 0A17 Italy 0A16 Mexico 0A46 Netherlands 0A09 Pan-Nordic 0A57 Denmark...
Page 322 MODEL Country Code Country Code (Detail) MFC-L2715DW Asia 0A40 Asia/Singapore 0A40 Gulf 0A41 Korea 0544 South Africa 0A24 Taiwan 0523 MFC-L2716D India 0345 Vietnam/Indonesia 0329 MFC-L2716DW India 0A45 Turkey 1A25 Vietnam/Indonesia 0A29 MFC-L2717DW U.S.A 0B01 MFC-L2730DN Japan 0047 MFC-L2730DW Argentina 0336 Australia 0306...
Page 323 0540 Asia/Singapore 0540 Australia 0506 Korea 0544 New Zealand 0527 Philippines 0521 Taiwan 0523 MFC-L2771DW Turkey 1525 Vietnam/Indonesia 0529 Note: The spec code list above is current as of February 2019. Please contact Brother distributors for the latest information. 5-51 Confidential...
Page 324: Print Maintenance Information (Function Code 77)
1.3.24 Print maintenance information (Function code 77) <Function> This function is used to print the maintenance information, such as remaining amount of consumables, the number of replacements, and counter information. <Operating Procedure> (1) Press the [7] twice in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 77”...
Page 325 Model name Total fax pages (Total / Duplex) Serial number Total pages printed by other methods (Total / Duplex) Model code Accumulated average coverage Spec code Average coverage by the current toner cartridge Switch check sum (factory use) and Average coverage by the previous toner comparison of default / current value cartridge Main firmware version...
Page 326: Check Fan Operation (Function Code 78)
1.3.25 Check fan operation (Function code 78) <Function> This function is used to check that the fan is operating normally. Switch the setting among rotation speed 100%, 50%, and OFF. Name Description Emits the heat in the fuser unit. <Operating Procedure> (1) Press the [7], and then the [8] in the initial state of maintenance mode.
Page 327: Display Machine Log Information (Function Code 80)
1.3.27 Display machine log information (Function code 80) <Function> This function is used to display the log information on the LCD. <Operating Procedure> (1) Press the [8], and then the [0] in the initial state of maintenance mode. For models without keypad, press the [▲] or [▼] to display “MAINTENANCE 80”...
Page 328 Description B5+EXE:00000000 Total paper input for B5 and Executive ENVLOP:00000000 Paper input for Envelope :00000000 Paper input for A5 (including A5 Landscape) OTHER :00000000 Paper input for other sizes PLTNRE:00000000 Total printed pages of plain, thin, and recycled paper TKTRBD:00000000 Total printed pages of thick, thicker, and bond paper ENVTYP:00000000 Total printed pages of envelope, thick envelope, and thin envelope...
Page 329: Display Machine Error Code (Function Code 82)
Last 12 digits of the serial number are displayed. The serial number can be changed according to the procedures below. 1) While the serial number is displayed, press the [9], [4], [7], and [5] in this order to enter the edit mode with the first digit flashing. For models without keypad, press the [▲] or [▼] to display “9”...
Page 330: Send Communication Log Information To Telephone Line (Function Code 87)
1.3.29 Send communication log information to telephone line (Function code 87) <Function> This function is used to send the error list to service personnel at a remote service station when a fax communication problem has occurred in the user's machine. Receiving the error list allows the service personnel to analyze the problem current in the user's machine.
Page 331: Other Service Functions
2. OTHER SERVICE FUNCTIONS 2.1 Drum Cleaning <Function> Attach the drum cleaning sheet kit (SP) (D011B4001) on the drum unit, and drum cleaning starts. <Operating Procedure> The insertion supplied with the drum cleaning sheet kit (SP) (D011B4001) is published on the next page.
Page 332 5-60 Confidential...
Page 333: Print Communication Error List
2.2 Print Communication Error List <Function> This function is used to print the communication error list (Communication List). <Operating Procedure> For models with touch panel (1) Press and hold the for approximately five seconds while the machine is in the ready state. The display shown on the right appears on the LCD.
Page 334: Resetting Drum Counter
2.3 Resetting Drum Counter <Function> This function resets the drum counter when replacing it. <Operating Procedure> Touch panel models (1) Close the front cover. (2) Press the (3) Press and hold the for five seconds. (4) Press the [Drum], and then press the [Yes]. Non-touch panel models (1) Close the front cover.
Page 335: Chapter 6 Wiring Diagram
CHAPTER 6 WIRING DIAGRAM 1. WIRING DIAGRAM Main PCB ADF model only ADF motor Touch panel model only Duplex scan model only SLEEPn ● RMOT1 STEP +3.3V Panel PCB RMOT2 VCOM VCOM LEDA LED_Anode RMOT3 USM0 TFT_RST_N RESET (with backlight) LEDB B_LED CONT_B...
Page 336: Chapter 7 Periodical Maintenance
CHAPTER 7 PERIODICAL MAINTENANCE 1. PERIODICAL REPLACEMENT PARTS There are no parts to be replaced periodically. Confidential...
Page 337: Appendix 1 Serial Numbering System
APPENDIX 1 SERIAL NUMBERING SYSTEM  Serial number labels on the printer Serial number A 7 N 1 1 1 1 0 1 Model number Serial number (6-digit) Manufacturing factory No. Year of manufacture * : 201* (e.g., 7 : 2017) Month of manufacture A: January E: May...
Page 338: Appendix 2 Deleting User Setting Information
APPENDIX 2 DELETING USER SETTING INFORMATION The user setting information for the machine is stored in the main PCB. You can return this to the default settings by following the procedure below. <Operating Procedure> For models without touch panel For models with touch panel (1) Press the [Menu] while the machine is (1) Press the [Settings] while the...
Page 339: Appendix 3 Installing The Maintenance Printer Driver
Maintenance USB Printer driver has been already installed to your computer according to this procedure, skip this section. • Before proceeding to the procedure given below, make sure that the Brother Maintenance USB Printer driver is stored in your computer.
Page 340 The following screen is displayed during installation. (4) Wait for the following screen to appear and click [Finish]. (5) Plug the AC cord of the machine into an electrical outlet. (6) Enter the maintenance mode. (Refer to “1.1 How to Enter Maintenance Mode” in Chapter (7) Connect the machine to your computer using a USB cable and the installation will be performed automatically.

Brother DCP-7090 Service Manual

Safety Information

Chapter 1 Supplemental Specifications

General

Network Connectivity

Service Information

Supplies

Media Specifications

Fax (Only for the Models with Fax Function)

Copy

Scanner

Chapter 2 Error Indications and Troubleshooting

Introduction

Overview

Error Indications

Troubleshooting

Chapter 3 Disassembly/Reassembly

Safety Precautions

Packing

Screw Catalogue

Screw Torque List

Lubrication

Overview of Gears

Harness Routing

Disassembly Flow Chart

Disassembly Procedure

Chapter 4 Adjusting and Updating Settings as Required after Parts Replacement

If You Replace the Main Pcb Assy

If You Replace the Low-Voltage Power Supply Pcb Assy

If You Replace the Laser Unit

If You Replace the Panel Unit or Panel Control Pcb

If You Replace the Adf Unit, First Side Cis Unit, Second Side Cis Unit or Document Scanner Unit

Chapter 5 Service Functions

Function Code

Other Service Functions

Chapter 6 Wiring Diagram

Chapter 7 Periodical Maintenance

Periodical Replacement Parts

Appendix 1 Serial Numbering System

Appendix 2 Deleting User Setting Information

Appendix 3 Installing the Maintenance Printer Driver

Quick Links

Troubleshooting

Related Manuals for Brother DCP-7090

Summary of Contents for Brother DCP-7090