Page 1: Service Manual
Brother Laser MFC SERVICE MANUAL MODEL: DCP - 7080/7080D/7180DN DCP - L2500D/L2520D/L2520DW DCP - L2540DN/L2540DW/L2541DW/L2560DW HL - L2380DW MFC-7380/7480D/7880DN MFC-L2680W/L2700D/L2700DN/L2700DW MFC-L2701D/L2701DW/L2703DW/L2705DW MFC-L2720DW/L2740DW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times.
Page 2 Each company whose software title is mentioned in this manual has a Software License Agreement specific to its proprietary programs. Any trade names and product names of companies appearing on Brother products, related documents and any other materials are all trademarks or registered trademarks of those respective companies.
Page 3: Open Source Licensing Remarks
Open Source Licensing Remarks This product includes open-source software. Please visit the Brother Solutions Center at http://solutions.brother.com/ to view the Open Source Licensing Remarks and Copyright information. Copyright and License ©2014 Brother Industries, Ltd. All rights reserved. This product includes software developed by the following vendors: ©1983-1998 PACIFIC SOFTWORKS, INC.
Page 4: Table Of Contents
CONTENTS REGULATION ......................vii SAFETY INFORMATION ..................xiv CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS 1. GENERAL ........................... 1-1 2. NETWORK CONNECTIVITY ....................... 1-5 3. SERVICE INFORMATION ......................1-6 4. SUPPLIES ........................... 1-7 5. MEDIA SPECIFICATIONS ......................1-9 6. FAX (ONLY FOR THE MODELS WITH FAX FUNCTION) ............1-9 7.
Page 5 Troubleshooting for Paper Feeding Problems ..............2-58 4.2.1 No paper is fed from paper tray ................2-58 4.2.2 No paper is fed from manual feed slot ..............2-59 4.2.3 Multiple sheets of paper are fed ................2-59 4.2.4 Paper becomes wrinkled ..................2-60 4.2.5 Paper is fed at an angle ..................
Page 6 4.13 Troubleshooting for Fax Problems ..................2-94 4.13.1 Fax cannot be sent ....................2-94 4.13.2 Fax cannot be received ..................2-95 4.13.3 Telephone communication is unavailable ............2-95 4.13.4 Communication error occurs ................2-96 4.14 Troubleshooting for Other Problems ................. 2-97 4.14.1 Cannot print ......................
Page 7 9.12.9 FFC Holder ASSY, Second Side CIS Flat Cable, ADF Motor ......3-50 9.12.10First Side Document Scanning Position Sensor PCB ASSY, Second Side Document Scanning Position Sensor PCB ASSY (Duplex scanning models only), ADF Cover/Document Detection Sensor PCB ASSY ........... 3-55 9.13 Document Cover ASSY (For models without ADF) ............
Page 8 Setting Serial Number and Entering Adjusted Value of Laser Unit ........4-4 Acquiring White Level Data (Function code: 55) ..............4-5 Adjusting Touch Panel (Function code: 61) (Touch panel models only) ......4-5 2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY ......... 4-6 Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB (Function code: 88) ...........
Page 9 1.3.14 Set country / language (function code: 52) ............5-25 1.3.15 Transfer received fax data / log information (function code: 53) (fax models only) ....................5-26 1.3.16 Fine-tune scanning position (function code: 54) ........... 5-28 1.3.17 Acquire white level data and set CIS scan area (function code: 55) ....5-29 1.3.18 Adjust touch panel (function code: 61) ..............
Page 10: Regulation
REGULATION Declaration of Conformity (Europe only)  We, Brother Industries, Ltd. 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561 Japan declare that this product is in compliance with the essential requirements of Directives 2004/108/EC, 2006/95/EC and 2005/32/EC. The Declaration of Conformity (DoC) is on our Website.
Page 11 Wireless LAN (Models with Wireless LAN function only)  This product supports Wireless LAN. Disconnect Device  CAUTION This product must be installed near an electrical socket that is easily accessible. In case of emergencies, you must disconnect the power cord from the electrical socket to shut off power completely.
Page 12 The purpose of the International ENERGY STAR Program is to promote the development and popularization of energy-efficient office equipment. ® As an ENERGY STAR Partner, Brother Industries, Ltd. has determined that this product ® meets the ENERGY STAR specifications for energy efficiency. Confidential...
Page 13 This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter. IMPORTANT • Changes or modifications not expressly approved by Brother Industries, Ltd. could void the user’s authority to operate the equipment. • A shielded interface cable should be used to ensure compliance with the limits for a Class B digital device.
Page 14 RF Exposure Notice (USA or Canada only) (Wireless models only)  This equipment complies with FCC/IC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines in Supplement C to OET65 and RSS-102 of the IC radio frequency (RF) Exposure rules. This equipment should be installed and operated keeping the radiator at least 20 cm or more away from person's body (excluding extremities: hands, wrists, feet and ankles).
Page 15 FDA regulations and must be attached to laser products marketed in the United States. Manufactured: BROTHER INDUSTRIES (VIETNAM) LTD. Phuc Dien Industrial Zone Cam Phuc Commune, Cam giang Dist Hai Duong Province, Vietnam This product complies with FDA performance standards for laser products except for deviations pursuant to Laser Notice No.
Page 16 For use in the USA or Canada only  These products are made for use in the USA and Canada only. We cannot recommend using them overseas because it may violate the Telecommunications Regulations (MFC models only) of that country and the power requirements of your product may not be compatible with the power available in foreign countries.
Page 17: Safety Information
SAFETY INFORMATION Definitions of Warnings, Cautions, 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 18 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 19 • DO NOT place this product in a position where the cord is stretched or strained, as it may become worn or frayed. • Brother strongly recommends that you DO NOT use any type of extension cord. (MFC only) Use caution when installing or modifying telephone lines. Never touch telephone wires or terminals that are not insulated unless the telephone line has been unplugged from the wall jack.
Page 20 HOT SURFACE After you have just used the product, some internal parts of the product will be extremely hot. Wait at least 10 minutes for the product to cool down before you touch the internal parts of the product. When you move the product, grasp the side handholds that are under the scanner. DO NOT carry the product by holding it at the bottom.
Page 21 To prevent injuries, be careful not to put your fingers in the areas shown in the illustrations. (MFC 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. These important safety precautions include the following: 1.
Page 22: Additional Information
Caution for Laser Product (WARNHINWEIS fur Laser drucker)  CAUTION: When the machine during servicing is operated with the cover open, the regulations of VBG 93 and the performance instructions for VBG 93 are valid. 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.
Page 23 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 Basic User's Guide: Brother numbers). Confidential...
Page 24 • 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 25: 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-L2500D DCP-L2540DW DCP-L2560DW Model DCP-7080 DCP-7080D DCP-7180DN DCP-L2520DW DCP-L2540DN DCP-L2520D DCP-L2541DW HL-L2380DW Wired/ Wired/ Wired/ Wireless Wired Wireless Wired...
Page 26 DCP-7080D DCP-L2540DN DCP-L2540DW DCP-L2560DW Model DCP-7080 DCP-L2500D DCP-L2520DW DCP-7180DN DCP-L2541DW HL-L2380DW DCP-L2520D Warm-up From Sleep Less than 9 seconds at 73.4F (23°C) Less than 10 seconds at time mode 73.4F (23°C) (except for Oceania) Less than 9 seconds at 73.4F (23°C)
Page 27 DCP-7080D DCP-L2540DN DCP-L2540DW DCP-L2560DW Model DCP-7080 DCP-L2500D DCP-L2520DW DCP-7180DN DCP-L2541DW HL-L2380DW DCP-L2520D Weights with Carton 12.3 kg / 11.9 kg / 26.2 lb 13.6 kg / 30.0 lb 12.1 kg / 27.1 lb (for the U.S.A.) (for the U.S.A.) 26.7 lb 12.5 kg / 27.6 lb...
Page 28 MFC-L2700DW MFC-L2700D MFC-L2701DW MFC-L2701D Model MFC-7380 MFC-L2680W MFC-L2703DW MFC-L2720DW MFC-L2740DW MFC-7480D MFC-L2705DW MFC-7880DN MFC-L2700DN Warm-up From Sleep Less than 9 seconds at 73.4F (23°C) Less than 10 seconds time mode at 73.4F (23°C) From Power Less than 28 seconds at 73.4F (23°C) ...
Page 29: Network Connectivity
2. NETWORK CONNECTIVITY DCP-7080 DCP-7080D DCP-L2520DW DCP-L2540DN DCP-L2540DW DCP-L2560DW Model DCP-L2500D DCP-7180DN DCP-L2541DW HL-L2380DW DCP-L2520D Wired network Network NC-8700h node type Wireless network Network NC-8300w N/A NC-8300w node type MFC-7380 MFC-L2700DW MFC-7480D MFC-L2701DW MFC-7880DN MFC-L2720DW Model MFC-L2680W MFC-L2700D MFC-L2703DW MFC-L2700DN...
Page 30: Service Information
3. SERVICE INFORMATION DCP-7080 DCP-7080D DCP-L2540DN DCP-L2540DW DCP-L2560DW Model DCP-L2500D DCP-7180DN DCP-L2541DW HL-L2380DW DCP-L2520D DCP-L2520DW Machine life Up to 50,000 pages or 5 years Part life (ADF) Up to 50,000 pages or 5 years N/A Part life Up to 50,000 pages or 5 years...
Page 31: Supplies
4. SUPPLIES DCP-7080 DCP-L2520DW DCP-7080D DCP-L2540DN DCP-L2560DW Model DCP-L2540DW DCP-L2500D DCP-7180DN HL-L2380DW DCP-L2541DW DCP-L2520D Toner Starter Approximately Approximately Approximately Approximately cartridge Toner 700 pages (for 2,600 pages (for 700 pages (for 700 pages Europe) China) the U.S.A., (except for Approximately...
Page 32 MFC-7380 MFC-L2680W MFC-7480D MFC-L2700DW MFC-L2720DW Model MFC-L2700D MFC-L2701DW MFC-7880DN MFC-L2740DW MFC-L2701D MFC-L2703DW MFC-L2700DN MFC-L2705DW Toner Starter Approximately 700 pages Approximately 700 pages cartridge Toner (except for China, Asia) (for the U.S.A., Oceania) Approximately 2,600 pages Approximately 1,200 pages (for China, Asia) (for Europe) Approximately 2,600 pages (for China, Asia)
Page 33: Media Specifications
5. MEDIA SPECIFICATIONS DCP-7080 DCP-7080D DCP-L2540DN DCP-L2540DW DCP-L2560DW Model DCP-L2500D DCP-7180DN DCP-L2541DW HL-L2380DW DCP-L2520D DCP-L2520DW Paper input Plain Paper, Recycled Paper Media weight 64 to 90 g/m (17 to 24 lb) Media size Width 147.3 to 215.9 mm, Length 147.3 to 356.0 mm (Width 5.8 to 8.5 inch, Length...
Page 34: Copy
7. COPY DCP-L2540DW DCP-7080 DCP-L2540DN DCP-L2541DW Model DCP-7080D DCP-L2500D DCP-L2520DW DCP-7180DN DCP-L2560DW DCP-L2520D HL-L2380DW Copy Speed Up to 30/32 Up to 26/27 cpm Up to 30/32 cpm (A4/Letter) First From Ready Less than 10 seconds copy out mode and time...
Page 35: Scanner
8. SCANNER DCP-7080 DCP-7080D DCP-L2540DN DCP-L2540DW DCP-L2560DW Model DCP-L2520D DCP-7180DN DCP-L2541DW HL-L2380DW DCP-L2500 DDCP-L2520DW Resolution Maximum 600 x 2400 dpi (Optical) Maximum 600 x 600 dpi Resolution (Interpolated) Maximum scanning 19,200 (main scanning) x 19,200 dpi (sub scanning) Scanning speed Monochrome 2.41 seconds (Letter) / 2.56 seconds (A4)
Page 36: Chapter 2 Error Indications & Troubleshooting
CHAPTER 2 ERROR INDICATIONS & TROUBLESHOOTING 1. INTRODUCTION Troubleshooting is a collection of solution procedures that service personnel should follow if an error or malfunction occurs in the machine. It is difficult to determine troubleshooting procedures for all possible problems that may occur in the future. Therefore, this chapter describes typical problems and recovery procedures for these.
Page 37: Checks Before Commencing Troubleshooting
1.2 Checks before Commencing Troubleshooting Check the following items before commencing repairs on 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 10°C (50°F) to 32.5°C (90.5°F), and the relative humidity is maintained between 20% and 80%.
Page 38  Others (1) Condensation When the machine is moved to a warm room from a cold location, condensation may occur inside the machine, causing various problems as listed below. • Condensation on the surface of optical devices such as the lens, reflecting mirror and protection glass may cause light print image.
Page 39: Overview
2. OVERVIEW 2.1 Cross-section Drawing 2.1.1 Printer part <Back side> <Front side> Eject roller 2 Exposure drum Laser unit Registration rear actuator Registration roller Registration front actuator Back cover Manual feed slot Eject roller 1 Paper dust cleaning roller Eject actuator Paper feed actuator Heat roller...
Page 40: Scanner Part
2.1.2 Scanner part ADF document support Document separate roller Document detection actuator Document feed ADF cover ASSY Document pick-up roller roller ASSY 2 separation Second side white bar ADF cover actuator Document guide Document feed roller ASSY 1 Document cover ADF document output support flap First side document scanning position...
Page 41: Paper Feeding
2.2 Paper Feeding 2.2.1 Printer part Eject to output tray Feed from manual feed slot Eject to back side <Front side> <Back side> Duplex path Fig. 2-4 Confidential...
Page 42: Scanner Part
2.2.2 Scanner part Document feed path Fig. 2-5 Confidential...
Page 43: Operation Of Each Part
2.3 Operation of Each Part Part name Operation Pick-up roller Feeds paper from the paper tray to the separation roller. Separation roller Separates paper fed from the paper tray into single sheets. Separation pad Paper feed actuator Detects the paper tray (open / closed). (Paper feed sensor) Detects paper in the paper tray.
Page 44: Block Diagram
2.4 Block Diagram Registration front/rear LCD models Wireless LAN PCB sensor PCB Registration front sensor High-voltage power Panel PCB Registration rear sensor supply PCB FAX LED Front cover sensor SCAN LED T1 clutch COPY LED WLAN LED Registration clutch Power key Main motor Touch panel models LD PCB...
Page 45: Main Components
2.5 Main Components ADF unit Document cover ASSY (For models with ADF) (For models without ADF) Document scanner unit Back cover Panel unit (For models with touch panel) Outer chute ASSY Modem PCB ASSY Panel unit (For models without Speaker unit touch panel) Joint cover ASSY Side cover R...
Page 46: 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 Errors in shaded column do not usually occur during normal use.
Page 47: Error Codes
Error Refer Error Refer Description Description codes codes 0D02 ― 2402 ― 0D03 ― 2403 ― 0D04 ― 2404 ― 0E00 ― 2405 ― 1003 ― 2408 ― 1004 ― 2409 ― 1100 ― 2501 ― 1200 ― 2502 ― 1300 ―...
Page 48 Error Refer Error Refer Description Description codes codes 2E02 ― 3A00 ― The number of rotations of the drum 2E03 ― 4000 2-38 unit is reaching the upper limit. 2E04 ― 4001 ― 2E05 ― 4002 ― 2E06 ― 4003 ―...
Page 49 Error Refer Error Refer Description Description codes codes 4F03 ― 6200 ― 4F04 ― 6201 ― 5001 ― 6202 ― 5002 ― 6203 ― 5003 ― 6204 ― 5004 ― 6208 ― 5005 ― 6209 ― 5100 ― 620A ― 5200 ―...
Page 50 Error Refer Error Refer Description Description codes codes 7003 ― 7D00 ― 7004 ― 7E00 ― The eject sensor remains ON (paper pass detected) even after the 7100 2-45 8000 ― registration rear sensor detected the end of paper pass. 7101 ―...
Page 51 Error Refer Error Refer Description Description codes codes There is no paper set in the manual 8C00 feed slot on the manual feed slot fix 2-48 9404 ― mode. 8D01 ― 9501 ― 8D02 ― 9502 ― The paper size setting for the machine 8E01 is other than A4, Letter, Legal or Folio 2-48...
Page 52 Error Refer Error Refer Description Description codes codes The first side document scanning When scanning the fax, white or black position sensor detected that the correction data for the second side A200 2-50 BC00 2-54 document length was 90 cm or longer CIS was not within the correct range.
Page 53 Error Refer Error Refer Description Description codes codes An error occurred during access to the E500 2-57 FB06 ― DRAM in the main PCB ASSY. Write error in the EEPROM of the E600 2-57 FB07 ― main PCB ASSY Irregular operation of the flash ROM E701 2-57 FB08 ―...
Page 54: Error Messages
3.2 Error Messages 3.2.1 2-line display LCD models Error Messages Error Refer Description codes Upper line Lower line Access Denied Function Locked Failed in print limit ID authentification on PC print or PC 2-85 print is forbidden. Function Locked. Job Failed in print limit ID Deleted.
Page 55 Error Messages Error Refer Description codes Upper line Lower line Jam Inside Open the Front Cover, The eject sensor does not detect pull out the Drum Unit paper pass after the registration completely and rear sensor detected the paper 7000 2-44 remove the jammed pass.
Page 56 Error Messages Error Refer Description codes Upper line Lower line Scanner Error Detected that the first side CIS flat cable or second side CIS flat cable B000 2-53 was not inserted correctly when function code 55 was executed. A white level not within the standard was scanned when BB00 2-54...
Page 57 Error Messages Error Refer Description codes Upper line Lower line 2-sided Disabled Close the Back Cover The back cover/duplex tray sensor of the machine. detected that the cover was open when duplex printing is started. 8903 2-47 (Before registering printing data to engine) The back cover/duplex tray sensor detected that the cover was open...
Page 58: Touch Panel Models
3.2.2 Touch panel models Error Messages Error Refer Description codes Upper line Lower line Access Denied Function Locked Failed in print limit ID authentification on PC print or PC 2-85 print is forbidden. Function Locked. Job Failed in print limit ID Deleted.
Page 59 Error Messages Error Refer Description codes Upper line Lower line Jam Inside Open the Front Cover, The eject sensor does not detect pull out the Drum Unit paper pass after the registration 7000 2-44 and remove the rear sensor detected the paper jammed paper.
Page 60 Error Messages Error Refer Description codes Upper line Lower line Self-Diagnostic Turn the power off, An error occurred in the fuser unit then on again. Leave when the power switch was turned 6901 2-42 the machine for 15 min. ON or sleep mode was released. Will Automatically Rechecking the error after the Restart within 15...
Page 61 Error Messages Error Refer Description codes Upper line Lower line 2-sided Disabled Close the Back Cover The back cover/duplex tray sensor and put the 2-sided detected that the cover was open Tray back in. when duplex printing is started. 8903 2-47 (Before registering printing data to engine)
Page 62: Communication Errors
3.3 Communication Errors Code 1 Code 2 Cause Refer to: No document set when calling. 2-96 Wrong fax number called. 2-96 No dial tone detected before dialing. 2-96 Busy tone detected before dialing. 2-96 2nd dial tone not detected. 2-96 No loop current detected.
Page 63 Code 1 Code 2 Cause Refer to: Abort detected ("1" in succession for 7 bits or more). 2-96 Overrun detected. 2-96 A frame received for 3 seconds or more. 2-96 CRC error in answerback. 2-96 Echo command received. 2-96 Invalid command received. 2-96 Command ignored in document setting or damping-out at 2-96...
Page 64 Code 1 Code 2 Cause Refer to: No document to be sent when polled. 2-96 Nation code or manufacturer code not correct. 2-96 Group number not registered for relay broad-casting was specified or the number of addressees specified exceeded 2-96 the maximum allowable number.
Page 65 Code 1 Code 2 Cause Refer to: RTC not found or carrier OFF detected for 6 seconds. 2-96 RTC found but no command detected for 60 seconds or 2-96 longer. No video data to be sent. 2-96 Cannot continue receiving color fax (remaining ink low). 2-96 RTN, PIN, or ERR received (sending terminal).
Page 66: Troubleshooting
4. TROUBLESHOOTING 4.1 Error Cause and Remedy This page shows LCD display for models without touch panel. It may differ from display shown on models with touch panel.  Error code 0201 Print Unable 02 Turn the power off and then back on again. Cannot detect the synchronized signal of the main motor.
Page 67  Error code 0300 Print Unable 03 Turn the power off and then back on again. Cannot detect the lock signal of the polygon motor for the laser unit (second time). Error code 0305 Cannot detect the lock signal of the polygon motor for the laser unit (first time). Error code 0401 Print Unable 04 Turn the power off and then back on again.
Page 68  Error code 0501 Print Unable 05 Turn the power off and then back on again. The center thermistor of the fuser unit has not reached the specified temperature within the specified time. Error code 0502 Print Unable 05 Turn the power off and then back on again. 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.
Page 69 Error code 0506 Print Unable 05 Turn the power off and then back on again. The center thermistor of the fuser unit detected a temperature fall greater than the specified value within the specified time. <User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
Page 70  Error code 050A Print Unable 05 Turn the power off and then back on again. The hardware detected a temperature error through the center thermistor or the side thermistor of the fuser unit. Error code 050B Print Unable 05 Turn the power off and then back on again.
Page 71  Error code 0600 Print Unable 06 Turn the power off and then back on again. A communication error occurred between the ASIC controlled by engine and the motor driver. Step Cause Remedy Main PCB failure Replace the main PCB ASSY. ...
Page 72  Error code 0A02 Print Unable 0A Turn the power off and then back on again. Detected a fan failure. Step Cause Remedy Connection failure of the fan Reconnect the fan harness. harness Connection failure of the HVPS Reconnect the HVPS flat cable. flat cable Fan failure Replace the fan.
Page 73  Error code 4000 Drum End Soon The number of rotations of the drum unit is reaching the upper limit. Error code 4200 Replace Drum The number of rotations of the drum unit has reached the upper limit. (Printing does not stop.) <User Check>...
Page 74  Error code 4C01 Replace Toner Open the Front Cover, replace Toner Cartridge. Dot count or develop roller counter of the toner has reached the upper limit in the toner stop mode. Error code 4D01 Replace Toner Dot count or develop roller counter of the toner has reached the upper limit in the toner continuous printing mode.
Page 75  Error code 6001 Cover is Open Close the Front Cover. The front cover sensor detected that the front cover was open. <User Check> • Close the front cover. Step Cause Remedy Front cover failure Replace the front cover. Front cover sensor failure Replace the high-voltage power supply PCB ASSY.
Page 76  Error code 6101 No Toner Open the Front Cover, then install Toner Cartridge. The new toner sensor detected that the toner cartridge was not set. <User Check> • Set the toner cartridge correctly. • Replace the toner cartridge with a new one. Step Cause Remedy...
Page 77  Error code 6901 Self-Diagnostic Turn the power off, then on again. Leave the machine for 15 min. An error occurred in the fuser unit when the power switch was turned ON or sleep mode was released. Error code 6902 Self-Diagnostic Will Automatically Restart within 15 minutes.
Page 78  Error code 6A00 Drum ! Slide the Green tab on Drum Unit. Detected discharge that may be attributable to dirty corona wire on the drum unit. <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 79  Error code 6F00 Print Unable ZC Turn the power off and then back on again. Detected irregular power supply for less than 100 times. <User Check> • Turn the power switch OFF and then back ON again. • Put a filter into the power supply. •...
Page 80  Error code 7100 Jam Rear Open the Back Cover and remove the jammed paper, then press Start. The eject sensor remains ON (paper pass detected) even after the registration rear sensor detected the end of paper pass. <User Check> •...
Page 81  Error code 7700 Jam 2-sided Pull out the Duplex Tray at the back of the machine and remove the jammed paper. The registration front sensor does not detect paper pass within the specified time after the first side was printed in duplex printing mode. <User Check>...
Page 82  Error code 8903 2-sided Disabled Close the Back Cover of the machine. The back cover/duplex tray sensor detected that the cover was open when duplex printing is started. (Before registering printing data to engine) Error code 8904 2-sided Disabled Close the Back Cover of the machine.
Page 83  Error code 8C00 Manual Feed Load paper. There is no paper set in the manual feed slot on the manual feed slot fix mode. <User Check> • Set paper in the manual feed slot. Step Cause Remedy Registration front actuator Reattach the registration front actuator.
Page 84  Error code 9002 Size mismatch Reload correct paper, then press Start. When printing from the paper tray, the size of paper set in the paper tray does not match the size specified by the driver. <User Check> • Change the driver setting to be matched with the size of the paper set in the paper tray. Step Cause Remedy...
Page 85  Error code 9701 Size Error DX Press Stop Key. Specify the correct paper and load the same size paper as the Printer driver setting. A tray set to duplex printing-incompatible size was specified in duplex printing. <User Check> • Specify A4 or Letter size paper in the driver and set paper with the same size to the specified paper tray.
Page 86  Error code A300 Document Jam Clear the scanner jam, then press the Stop Key. The first side document scanning position sensor has not detected the top of the document even after the document has been fed for the specified distance. <User Check>...
Page 87  Error code A500 When scanning the fax, white or black correction data for the first side CIS was not within the correct range. (First time) Error code A600 When scanning the fax, white or black correction data for the first side CIS was not within the correct range.
Page 88  Error code AD00 Scan Unable Remove the original document. Turn the power off, then on again. Image processing cannot be completed correctly because the number of pixels required for image processing is insufficient in the scanned data for the first side of the document. Step Cause Remedy...
Page 89  Error code BB00 Scanner Error 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 90  Error code BF00 Scan Unable Document is too long for 2-sided scanning. Press Stop key. The first side document scanning position sensor detected that the ADF was unable to duplex-feed the document because the document length is 400 mm or longer. <User Check>...
Page 91  Error code D200 Machine Error Unplug machine, then call Brother. Detected the modem PCB was not connected. Step Cause Remedy Connection failure of the Reconnect the modem flat cable. modem flat cable Modem PCB failure Replace the modem PCB ASSY.
Page 92  Error code E000 Print Unable E0 Turn the power off and then back on again. An error occurred in the ROM check sum. Error code E100 Print Unable E1 Turn the power off and then back on again. Program error <User Check>...
Page 93: Troubleshooting For Paper Feeding Problems
4.2 Troubleshooting for Paper Feeding Problems End users can solve problems related to paper feeding as long as they follow the User Check items. If the problem still cannot be solved, implement each procedure according to the step numbers in the tables below. 4.2.1 No paper is fed from paper tray <User Check>...
Page 94: No Paper Is Fed From Manual Feed Slot
4.2.2 No paper is fed 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 95: Paper Becomes Wrinkled
4.2.4 Paper becomes wrinkled <User Check> • Check that the paper is set in paper tray correctly. • Flip over the paper in paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
Page 96: Paper Is Curled
4.2.6 Paper is curled <User Check> • Check that the paper specified in driver settings is matched to the paper set. • Select "Reduce Paper Curl" in the driver. • Check that the paper is set in paper tray correctly. •...
Page 97: Paper Jam
4.2.8 Paper jam  Paper jams in 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 the paper guide according to the paper size. •...
Page 98  Paper jams in 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 99  Paper jams in the feeding path in the center of the machine <User Check> • Check that the paper is set in paper tray correctly. • Flip over the paper in paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
Page 100  Paper jams in the ejecting section <User Check> • Check that the paper is set in paper tray correctly. • Flip over the paper in paper tray or rotate the paper 180°. • Adjust each paper guide according to the paper size. •...
Page 101: Troubleshooting For Image Defects
4.3 Troubleshooting for Image Defects 4.3.1 Image defect examples Light (2-67) Faulty registration Dark (2-68) Poor fixing Completely (2-67) (2-68) blank (2-69) Image distortion All black Dirt on the paper (2-70) Vertical streaks (2-71) (2-69) (2-70) Black vertical Horizontal White vertical White horizontal Faint print (2-73) streaks on a light...
Page 102: Troubleshooting According To Image Defect
4.3.2 Troubleshooting according to image defect End users can solve problems related to image defect as long as they follow the User Check items. If the problem still cannot be solved, implement each procedure according to the step numbers in the tables below. ...
Page 103: Poor Fixing
 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. - Clean the corona wire of the drum unit.
Page 104: Image Distortion
 Completely blank <User Check> - Clean the corona wire of the drum unit. - Replace the drum unit with a new one. - Replace the toner cartridge with a new one. - Install the latest firmware. Step Cause Remedy Dirt on the electrodes of the drum Clean the electrodes of the drum unit and unit and those of the machine...
Page 105  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 drum Clean the electrodes of the drum unit and unit and those of the machine those of the machine.
Page 106  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 the User's Guide to remove the dirt from the exposure drum using a cotton applicator.
Page 107  Black vertical streaks on a light background <User Check> - Clean the corona wire of the drum unit. - This problem may disappear after printing multiple sheets of paper. - Refer to the User's Guide to remove the dirt from the exposure drum using a cotton applicator.
Page 108: Faint Print
 White vertical streaks <User Check> - Clean the corona wire of the drum unit. - Check that there is no dust on the toner cartridge. - Refer to the User's Guide to remove the dirt from the exposure drum using a cotton applicator.
Page 109: White Spots
 White spots <User Check> - Check that the fan is not clogged. - Refer to the User's Guide to remove the dirt from the exposure drum using a cotton applicator. - Replace the drum unit with a new one. - Replace the toner cartridge with a new one.
Page 110  Single-colored dot or dirt <User Check> - Check that the paper is not damp. - Refer to the User's Guide to remove the dirt from the exposure drum using a cotton applicator. - Replace the drum unit with a new one. - Replace the toner cartridge with a new one.
Page 111: Horizontal Lines
 Downward fogging of solid color <User Check> - Replace the toner cartridge with a new one. Step Cause Remedy High-voltage power supply PCB Replace the high-voltage power supply PCB failure ASSY. Main PCB failure Replace the main PCB ASSY. ...
Page 112  Fogging <User Check> - Check the usage environment of the machine. Using the machine in hot-humid or cold-dry conditions can cause this problem. - Check that the acid paper is not used. - This problem may disappear after printing multiple sheets of paper. - Replace the toner cartridge with a new one.
Page 113: Troubleshooting For Software Problems
(4) Select "DCP-XXXX", "HL-XXXX" or "MFC-XXXX" in the "USB Device Tree". (5) Check the "Product ID" under "DCP-XXXX", "HL-XXXX" or "MFC-XXXX". Product ID (hexadecimal) DCP-L2500D : 0321h DCP-7080 : 0368h DCP-L2520D : 0324h DCP-7080D : 0367h DCP-L2520DW : 0322h...
Page 114: Troubleshooting For Network Problems
4.5 Troubleshooting for Network Problems 4.5.1 Cannot print via network connection <User Check> - Check the relevant section in the Network Setting Guide. - Check the network connection. - Reset the network. (Refer to the User's Guide.) - Check the LAN cable. Step Cause Remedy...
Page 115: 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 ON again. Step Cause Remedy Rubber key attachment failure Reattach the rubber key. (For models without touch panel) Connection failure of the panel Reconnect the panel harness.
Page 116: Control Panel Is Inoperable
4.6.3 Control panel is inoperable <User Check> - Turn the power switch OFF and then ON again. Step Cause Remedy Rubber key attachment failure Reattach the rubber key. (For models without touch panel) Connection failure of the panel Reconnect the panel harness. harness Connection failure of the key PCB Reconnect the key PCB flat cable.
Page 117: Troubleshooting For Toner And Drum Problems
4.7 Troubleshooting for Toner and Drum Problems 4.7.1 New toner is not detected <User Check> - Check that the packaged toner cartridge is not set. - Check that a new (not used) toner cartridge is set. - Check that the genuine toner cartridge is set. Step Cause Remedy...
Page 118: Drum Error
4.7.4 Drum error <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 drum Clean the electrodes of the drum unit and unit and those of the machine those of the machine.
Page 119: 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 center Reconnect the center thermistor harness. thermistor harness Connection failure of the side Reconnect the side thermistor harness. thermistor harness Connection failure of the heater Reconnect the heater harness.
Page 120: Troubleshooting For Pcb Problems
4.10 Troubleshooting for PCB Problems 4.10.1 Main PCB failure <User Check> - Turn the power switch OFF and then ON again. - Install the latest firmware. - Check that the PC Print is not forbidden. - Check the print limit ID. - Check that the print data is not damaged.
Page 121: 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 documents set is no more than 35 sheets. - Check that the ADF cover is closed correctly.
Page 122: Document Jam
4.11.3 Document jam  Paper jam in the ADF cover <User Check> - Check that the paper used for the document is not thinner than 64 g/m - Check that the paper used for the document is not shorter than 147.3 mm. - Check that the number of paper set has not exceeded the upper limit in the paper tray.
Page 123: Document Becomes Wrinkled
 Paper jam in the paper eject section of the ADF Step Cause Remedy Foreign object in the ADF Remove foreign objects in the ADF document eject path document eject path. Document pinch roller coming off Reattach the document pinch roller. Abrasion of document ejection Replace the ADF unit.
Page 124: Troubleshooting For Image Defects
4.12 Troubleshooting for Image Defects 4.12.1 Defect examples Light (2-89) Faulty registration (2-90) Dark (2-90) Completely All black blank (2-91) (2-91) Vertical streaks (2-92) White streaks Partially shaded Fully tinged (2-93) (2-92) (2-93) Fig. 2-14 4.12.2 Troubleshooting according to image defect ...
Page 125: Faulty Registration
 Faulty registration (1) ADF Step Cause Remedy Deviation of the scanning start Execute "Fine adjustment of scan start position position. (function code: 54)". First side document scanning Reattach the first side document scanning position actuator caught in some position actuator. sections of the machine Second side document scanning Reattach the second side document...
Page 126  Completely blank <User Check> - Check that the document is not reversed. Step Cause Remedy Incorrect white level correction data Execute "Acquire white level data (function code: 55)". First or second side CIS unit failure Replace the first or second side CIS unit. Main PCB failure Replace the main PCB ASSY.
Page 127  Vertical streaks <User Check> - Clean the scanner glass or ADF glass. - Clean the document hold. Step Cause Remedy Dirt inside of scanner glass Clean the inside of the scanner glass. Dirt inside of ADF glass Clean the inside of the ADF glass. First or second side CIS unit failure Replace the first or second side CIS unit.
Page 128  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 ADF glass. Step Cause Remedy...
Page 129: Troubleshooting For Fax Problems
4.13 Troubleshooting for Fax Problems 4.13.1 Fax 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. - Check that the handset curled cord is inserted into the socket correctly.
Page 130: Fax Cannot Be Received
4.13.2 Fax 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 handset is placed on the handset holder correctly. - Check that the receiver's machine works normally or the function you want to perform is equipped with the receiver's machine.
Page 131: Communication Error Occurs
4.13.4 Communication error occurs <User Check> - Check whether there is any noise source near the machine. Step Cause Remedy Connection failure of modem flat Check the connection of the modem flat cable cable, and reconnect it if necessary. Connection failure of modem FG Screw tighten the screws of the modem FG harness harness.
Page 132: Troubleshooting For Other Problems
4.14 Troubleshooting for Other Problems 4.14.1 Cannot print <User Check> - Turn the power switch OFF and then ON again. - Check that the USB cable is connected to the host correctly. - Check that the LAN cable is connected to the host correctly. - Replace the USB cable.
Page 133: Machine Is Not Turned On
4.14.3 Machine is not turned ON <User Check> - Check that the power cord is inserted into the terminal correctly. - Turn the power off and on. Step Cause Remedy Rubber key attachment failure Reattach the rubber key. (For models without touch panel) Connection failure of panel harness Reconnect the panel harness.
Page 134: 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 135: Packing
2. PACKING Quick set up guide Insertion USB cable Printed bag ASSY Option carton Pad rear (For models Power cord without ADF) Pad front (For models Pad rear Pad front without ADF) (For models with (For models with ADF) ADF/handset) Machine (For models without ADF)
Page 136: Screw Catalogue
3. SCREW CATALOGUE Taptite bind B Taptite cup B Taptite bind B Taptite cup B M3x10 M3x8 Taptite bind B Taptite cup B M4x12 M3x10 Screw bind Taptite flat B Taptite flat B Screw bind M3x10 M3x4 Screw pan (S/P washer) Taptite cup S Taptite cup S Screw pan (S/P washer)
Page 137: Screw Torque List
4. SCREW TORQUE LIST Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Cord hook Taptite cup B M3x8 0.40.05 (40.5) 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)
Page 138 Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Modem shield cover Screw pan (S/P washer) 0.60.1 (61) M3.5x6 Modem PCB ASSY Taptite cup S M3x6 SR 0.50.1 (51) Joint cover ASSY Taptite bind B M4x12 0.80.1 (81) Fuser unit Taptite pan B M4x14 0.80.1 (81) LVPS shield plate cover...
Page 139: 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 67R/40R 3 places 1.5 to 2.0 mm dia. ball ...
Page 140: Overview Of Gears
6. OVERVIEW OF GEARS <Layout view> 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> LY9021 PF gear 61R/26 LY9025 PF gear 34 LY9022 PF gear 31/29 LY9024...
Page 141 <Layout view> 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> LY9006 Ejector gear 33 LY9005 Ejector gear 40 LY9008 DX gear 44/32 LY9007 Ejector gear 17/16 LY9026...
Page 142: Harness Routing
7. HARNESS ROUTING Right side of the machine Guides Registration front/rear sensor PCB harness (RD, BL, WH, BK) Guide Hole Hole Guide LVPS harness (WH, BR) Harness colors are subject to change for some reason. Confidential...
Page 143 Top side of the registration chute Hole Top side LVPS harness (WH, BR) Guides Hole Registration front/rear sensor PCB harness (RD, BL, WH, BK) Registration front/rear sensor PCB ASSY Registration chute Harness colors are subject to change for some reason. 3-10 Confidential...
Page 144 Left side of the machine <Inside of the frame L> New toner sensor PCB flat cable Hook harness (BK) Flat cable sponge Main PCB ASSY Main motor flat cable New toner sensor PCB ASSY Eject sensor PCB ASSY Flat core Hole Laser unit flat cable Guide...
Page 145 Rear side of the machine Laser unit flat cable Laser unit Flat core Fuser unit HVPS flat cable Flat core Registration front/rear sensor PCB harness (RD, BL, WH, BK) Guide Hole HVPS flat cable Guide Guides Side thermistor Guides harness ASSY (WH) Center thermistor harness ASSY (WH)* Eject sensor PCB ASSY*...
Page 146 New toner sensor PCB ASSY Main PCB ASSY Guides New toner sensor PCB flat cable New toner sensor PCB flat cable New toner sensor PCB ASSY Main PCB ASSY 3-13 Confidential...
Page 147 Speaker unit, Modem (Main PCB side) Speaker harness (RD, BK) Guides Speaker unit Flat core Guide Modem FG harness LVPS (GN) Modem flat cable Speaker harness (RD, BK) Modem Modem flat cable Main PCB ASSY Main PCB ASSY Modem FG harness main (YW) Harness colors are subject to change for some reason.
Page 148 Speaker unit, Modem (LVPS side) Guide Modem FG harness main (YW) Guides Speaker harness (RD, BK) Guides Modem flat cable Modem PCB ASSY Speaker unit Modem FG harness LVPS (GN) Harness colors are subject to change for some reason. 3-15 Confidential...
Page 149 ADF unit ADF cover/document Second side document scanning Second side document scanning detection sensor PCB ASSY position sensor PCB ASSY position sensor PCB harness (BL) ADF cover/document detection Guides Guide sensor PCB harness (WH) ADF motor harness (RD) ADF FG harness (GN) Guides Second side CIS flat cable...
Page 150 Scanner unit <For models with touch panel> <For models without touch panel> First side CIS flat cable First side CIS flat cable Flat core Flat core FB harness FB harness unit (WH) unit (WH) Panel FG harness (GN) Panel harness (WH) Panel harness (WH) Guides Harness colors are subject to change for some reason.
Page 151 Panel unit (Touch panel models only) Guides Key PCB flat cable 3-18 Confidential...
Page 152 Hook switch PCB ASSY Guide Hook switch PCB ASSY Guide Lower handset holder Hook harness (BK) Harness colors are subject to change for some reason. 3-19 Confidential...
Page 153 ADF unit - Main PCB ASSY Upper document chute ASSY Lower document chute ASSY Document Scanner unit Second side CIS flat cable FFC holder ASSY Second side CIS flat cable ADF sensor harness (WH) ADF FFC holder ADF motor harness (RD) Main PCB ASSY ADF FG harness (GN) Second side document scanning...
Page 154 Document scanner unit - Main PCB ASSY Document scanner unit Panel harness (WH) Panel FG harness (GN) FB harness unit (WH) Panel harness (WH) First side CIS flat cable Hole First side CIS flat cable Document scanner motor harness (WH) Panel FG harness (GN) Document scanner FG harness (BK) Harness colors are subject to change for some reason.
Page 155: Disassembly Flow Chart
8. DISASSEMBLY FLOW CHART Disassembly / Reassembly (second) 9.28 Roller Holder 9.12.3 ADF Document 9.13 Document Cover 9.1 Paper Tray 9.2 Cord Hook 9.5 Support Flap ASSY Output Support Flap ASSY (For models 10/10 without ADF) 10/10 20/20 9.10 Pull Arm L, Pull 9.9 Side Cover L 9.1 Duplex Tray Arm R, Pull Arm Spring...
Page 156: Disassembly Procedure
9. DISASSEMBLY PROCEDURE 9.1 Preparation  Transferring Received FAX Data In case of machine failure, unplugging the power 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 157  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 158: Cord Hook
9.2 Cord Hook (1) Remove the taptite cup B M3x8 screw to remove the cord hook. (two locations) Taptite cup B M3x8 Cord hooks Taptite cup B M3x8 Fig. 3-10 3-25 Confidential...
Page 159: Back Cover
9.3 Back Cover (1) Open the back cover. (2) Push both ribs on the back cover outward, and remove the pins 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 160: 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 161: Front Cover Assy, Support Flap
9.5 Front Cover ASSY, Support Flap (1) Open the front cover ASSY. (2) Release the hook of the develop joint link, and 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 162: Side Cover R
9.6 Side Cover R (1) Remove the taptite bind B M4x12 screw. (2) Release the each hook on the side cover R in order of the arrow A to C, and remove the side cover R from the main body. Hooks Taptite bind B M4x12 Side cover R...
Page 163: 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 164: 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 165: Side Cover L, Handset Holder Assy (For Models With Handset)
9.9 Side Cover L, Handset Holder ASSY (For models with handset) (1) Remove the taptite bind B M4x12 screw. (2) Release the each hook on the side cover L in order of the arrow A to C, and remove the side cover L from the main body.
Page 166 <For models with handset> (4) Remove the two taptite bind B M4x12 screws. Release the hooks to remove the handset holder ASSY from the side cover L. Taptite bind B M4x12 Hook Hook Handset holder ASSY Side cover L Fig. 3-19 Harness routing: Refer to “11.
Page 167: Pull Arm L, Pull Arm R, Pull Arm Spring
9.10 Pull Arm L, Pull Arm R, Pull Arm Spring (1) Open the document scanner unit. (2) Release the joint parts of pull arm L and pull arm R from the each pull arm hinge. (3) Remove the pull arm L and the pull arm R from the each pull arm guide. (4) Remove the each pull arm spring from the pull arm L and the pull arm R.
Page 168: Document Scanner Unit
9.11 Document Scanner Unit (1) Remove the taptite cup S M3x8 SR screw to remove the document scanner FG harness. (2) Remove the taptite cup S M3x8 SR screw to remove the panel FG harness and the ADF FG harness. (3) Disconnect the second side document scanning position sensor PCB harness, the ADF sensor harness, the panel harness, the document scanner motor harness, the ADF motor harness, the first side CIS flat cable and the second side CIS flat cable from the...
Page 169 (4) Release the hook to remove the ADF FFC holder while opening the document scanner unit. Release the each harness from the securing fixtures. (5) Open the document scanner unit at 30 degrees, and remove it by lifting it up. Document scanner unit Hook ADF FFC holder...
Page 170: Adf Unit (For Models With Adf)
9.12 ADF Unit (For models with ADF) 9.12.1 ADF Unit (1) Remove the ADF FFC holder from the second side CIS flat cable. (2) Remove the taptite bind B M4x12 screw from the hinge ASSY L. Hinge ASSY L Taptite bind B M4x12 Second side CIS flat cable ADF FFC holder Fig.
Page 171 (3) Open the ADF unit. Release the hook of the FFC holder ASSY, then slide it in the direction of the arrow to release the claws. 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 172: Hinge Assy L, Hinge R, Hinge R Support, Hinge Arm R
9.12.2 Hinge ASSY L, Hinge R, Hinge R Support, Hinge Arm R (1) Remove the three taptite cup S M3x12 screws to remove the hinge ASSY L from the document scanner unit. Taptite cup S M3x12 Document scanner unit Hinge ASSY L Fig.
Page 173: Adf Document Output Support Flap, Adf Document Support
9.12.3 ADF Document Output Support Flap, ADF Document Support (1) Release the bosses to remove the ADF document output support flap from the ADF unit. (2) Bend the ADF document support inward to remove it from the bosses of the ADF unit. ADF document support ADF document output support flap...
Page 174: Adf Cover Assy, Gear Cover
9.12.4 ADF Cover ASSY, Gear Cover (1) Open the ADF cover ASSY. Release the bosses to remove the ADF cover ASSY from the ADF unit. (2) Release the hook to remove the gear cover from the ADF unit. Hook Gear cover ADF cover ASSY Boss Boss...
Page 175: Document Separate Roller Assy
9.12.5 Document Separate Roller ASSY (1) Release the lock of the conductive bushing to remove the document separate roller ASSY from the ADF unit. Document separate roller ASSY Conductive bushing ADF flaps ADF unit Document feed roller ASSY 2 Lock Conductive bushing Fig.
Page 176: Adf Separation Pad Holder Assy
9.12.6 ADF Separation Pad Holder ASSY (1) Release the bosses to remove the ADF separation pad holder ASSY from the ADF unit. (2) Remove the ADF spring from the ADF unit. ADF separation pad holder ASSY Boss Boss ADF spring ADF unit Fig.
Page 177: Cis Spacer, Second Side Cis Unit (Duplex Scanning Models Only)
9.12.7 CIS Spacer, Second Side CIS Unit (Duplex scanning models only) Note: • Disassemble in a dust-free location. (1) Release the hooks to remove the CIS glass stopper from the ADF unit. (2) Remove the scanner glass strip from the ADF unit. Hook CIS glass stopper Hook...
Page 178 (3) Remove the two CIS spacers from the second side CIS unit. (4) Take off the second side CIS flat cable attached on the back of the ADF unit from the double-sided tape. Note: • Be sure to replace the double-sided tape with a new one, after taking off the second side CIS flat cable from the double-sided tape.
Page 179: Document Feed Roller Assy 1
9.12.8 Document Feed Roller ASSY 1 (1) Release the lock of the conductive bushing to remove the document feed roller ASSY 2. Document feed roller ASSY 2 Conductive bushing Lock Conductive bushing Fig. 3-36 3-46 Confidential...
Page 180 (2) Remove the two taptite cup B M3x10 screws. Release the hooks to remove the ADF front cover from the ADF unit. ADF front cover ADF unit Taptite cup B M3x10 Hooks Hook <Bottom side of ADF unit> Fig. 3-37 3-47 Confidential...
Page 181 (3) Remove the four taptite cup B M3x10 screws to remove the upper document chute ASSY from the ADF unit. Pull out the second side CIS flat cable from the hole. Taptite cup B M3x10 Hole Upper document chute ASSY Taptite cup B M3x10 Second side CIS...
Page 182 (4) Release the lock of the conductive bushing to remove the document feed roller ASSY 1 from the ADF unit. Document feed roller ASSY 1 Conductive bushing Lock ADF unit Conductive bushing Fig. 3-39 3-49 Confidential...
Page 183: Ffc Holder Assy, Second Side Cis Flat Cable, Adf Motor
9.12.9 FFC Holder ASSY, Second Side CIS Flat Cable, ADF Motor (1) Release the ADF harness unit from the securing fixtures. Remove the three taptite cup B M3x10 screws. Release the hook to remove the lower document chute ASSY from the ADF unit.
Page 184 <Attachment Procedure> 1) Fold the second side CIS flat cable as shown in the figure below. Mountain fold Valley fold 922.5 mm 101 mm 102 mm Reinforcing tape 45° CIS side The edge of the reinforcing tape Second side CIS flat cable Electrode Fig.
Page 185 4) Attach the double-sided tape to the FFC holder ASSY as shown in the figure below. (If the old double-sided tape remains attached, replace it with new tape.) FFC holder ASSY Double-sided tape Fig. 3-43 5) Fold the second side CIS flat cable at 2012 mm away from the second side CIS unit side.
Page 186 7) Fold the other end of the second side CIS flat cable at 751 mm away from the main PCB side. Mountain fold Valley fold 751 mm Main PCB side 45° Second side CIS flat cable Reinforcing tape Electrode The edge of the reinforcing tape Fig.
Page 187 (5) Remove the taptite cup S M3x8 SR screw to remove the ADF FG harness from the drive frame ASSY. (6) Remove the three taptite cup B M3x10 screws to remove the drive frame ASSY from the lower document chute ASSY. Disconnect the ADF motor harness from the ADF motor. (7) Release the hook to remove the gear 43 from the drive frame ASSY.
Page 188: 10First Side Document Scanning Position Sensor Pcb Assy, Second Side Document Scanning Position Sensor Pcb Assy (Duplex Scanning Models Only), Adf Cover/Document Detection Sensor Pcb Assy
9.12.10First Side Document Scanning Position Sensor PCB ASSY, Second Side Document Scanning Position Sensor PCB ASSY (Duplex scanning models only), ADF Cover/Document Detection Sensor PCB ASSY (1) Remove the first side document scanning position sensor PCB ASSY while pushing the rib A.
Page 189: Document Cover Assy (For Models Without Adf)
9.13 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. (2) Remove the taptite cup B M3x10 screw to remove the hinge L support and the hinge L from the hinge arm L.
Page 190 (4) Remove the three taptite cup B M3x10 screws to remove the hinge arm L from the document cover ASSY. (5) Remove the three taptite cup B M3x10 screws to remove the hinge arm R from the document cover ASSY. Taptite cup B M3x10 Hinge arm L Taptite cup B M3x10...
Page 191: Panel Unit (For Models With Touch Panel)
9.14 Panel Unit (For models with touch panel) 9.14.1 Panel Unit (1) Remove the four taptite cup B M3x10 screws. (2) Release the claws to remove the panel unit. Disconnect the panel harness 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 harness.
Page 192: Panel Pcb Assy, Lcd
9.14.2 Panel PCB ASSY, LCD (1) Disconnect the key PCB flat cable from the panel PCB ASSY, and release it from the securing fixtures. (2) Release the hook 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 193: Touch Panel Assy
9.14.3 Touch Panel ASSY (1) Remove the two 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. (3) Remove the touch panel plate and the LCD frame sheet from the panel unit. (4) Remove the touch panel ASSY from the panel unit.
Page 194: Panel Unit (For Models Without Touch Panel)
9.15 Panel Unit (For models without touch panel) 9.15.1 Panel Unit (1) Remove the four taptite cup B M3x10 screws. (2) Release the claws to remove the panel unit. Disconnect the panel harness 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 harness.
Page 195: Panel Pcb Assy
9.15.2 Panel PCB ASSY (1) Release the hooks to remove the panel PCB ASSY from the panel unit. (2) Reverse the panel PCB ASSY. Release the locks to disconnect the LCD flat cable from the panel PCB ASSY. Panel PCB ASSY Lock LCD flat cable Lock...
Page 196: Lcd
9.15.3 LCD (1) Remove the rubber key L and the rubber key R from the panel unit. (2) Release the hooks A to remove the backlight guide from the panel unit. (3) Release the hooks B to remove the LCD and the diffusion film from the backlight guide. (4) Remove the LCD sheet from the panel unit.
Page 197: First Side Cis Unit, First Side Cis Flat Cable
9.16 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. (2) Remove the document scanner top cover from the document scanner bottom cover ASSY. (3) Remove the CIS roller holder L ASSY and the CIS roller holder R ASSY from the first side CIS unit.
Page 198 (4) Slide the CIS carriage slowly to the location shown in the figure below. (5) Open the first side CIS unit at 90 degrees to the CIS carriage, and slide it in the direction of the arrow to remove it by releasing the two bosses. Disconnect the first side CIS flat cable from the first side CIS unit.
Page 199 (6) Remove the CIS carriage from the CIS drive belt. CIS drive belt CIS carriage Fig. 3-61 (7) Remove the first side CIS flat cable attached on the back of the CIS carriage from the double-sided tape. Note: • Be sure to replace the double-sided tape with a new one, after taking off the first side CIS flat cable from the double-sided tape.
Page 200 <Attachment Procedure> 1) Fold the first side CIS flat cable as shown in the illustration below. Mountain fold Valley fold 336 mm 127 mm 72 mm 45° 45° Main PCB side The edge of the Reinforcing tape Electrode 68 mm reinforcing tape 45 mm First side CIS flat cable...
Page 201 3) Attach the 12 mm x 12 mm double-sided tape to the CIS carriage at positions shown in the figure below. (If the old double-sided tape remains attached, replace it with a new tape.) 4) Connect the first side CIS flat cable to the first side CIS unit. 5) Attach the first side CIS unit to the CIS carriage.
Page 202 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 tape as shown in the figure below.
Page 203: Lock Claw, Pull Arm Guide
9.17 Lock Claw, Pull Arm Guide (1) Remove the lock claw. Release the hook to remove the pull arm guide. (2 locations) Lock claw Pull arm guide Hook Pull arm guide Lock claw Hook Fig. 3-67 3-70 Confidential...
Page 204: Modem Pcb Assy
9.18 Modem PCB ASSY (1) Release the hook to remove the speaker cover. (2) Remove the two screw pan (S/P washer) M3.5x6 screws, and release the modem FG harness LVPS from the securing fixtures. Speaker cover Screw pan (S/P washer) M3.5x6 Modem FG harness LVPS Hook Modem FG harness LVPS...
Page 205 (3) Remove the screw pan (S/P washer) M3.5x6 screw and the taptite cup S M3x8 SR to release the modem FG harness main from the securing fixtures. (4) Disconnect the modem flat cable from the main PCB ASSY and the modem PCB ASSY, and release it from the securing fixtures.
Page 206: Speaker Unit
9.19 Speaker Unit (1) Disconnect the speaker harness from the main PCB ASSY, and release it from the securing fixtures. (2) Remove the speaker hold spring while pushing the hook of the speaker hold spring with a flat-blade screwdriver. (3) Remove the speaker unit. Speaker hold spring Hook Speaker unit...
Page 207: Joint Cover Assy
9.20 Joint Cover ASSY (1) Remove the four taptite bind B M4x12 screws. (2) Release the hooks on the joint cover ASSY in order of the hook A to F, and remove the joint cover ASSY in the direction of the arrow. Hook F Joint cover ASSY Taptite bind B M4x12...
Page 208: Fuser Unit
9.21 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. 3-72 Harness routing: Refer to “4. Rear side of the machine”.
Page 209 (4) Remove the two taptite pan B M4x14 screws, and remove the fuser unit. <Back side> Taptite pan B M4x14 Fuser unit Fig. 3-74 Note: • DO NOT apply a physical impact or vibration to the fuser unit. • DO NOT touch the rollers and electrodes to prevent breakage of the fuser unit. Fig.
Page 210: Low-Voltage Power Supply Pcb Assy
9.22 Low-voltage Power Supply PCB ASSY (1) Remove the front chute FG spring from the LVPS shield plate cover and the front chute ASSY. (2) Remove the two taptite cup S M3x8 SR screws and the screw pan (S/P washer) M3.5x6 screw to remove the LVPS shield plate cover and the LVPS insulation sheet.
Page 211 (3) Remove the screw pan (S/P washer) M3.5x6 screw, and remove the FG harness from the LVPS shield plate. (4) Release the LVPS-heater harness and the FG harness from the securing fixtures. (5) Remove the power cord or the inlet from the mounting position. (For models with inlet*, remove the taptite flat B M3x10 screw, and remove the inlet*.) (6) Remove the two taptite cup S M3x8 SR screws, and remove the low-voltage power supply PCB ASSY.
Page 212: Fan
9.23 Fan (1) Disconnect the fan harness from the high-voltage power supply PCB ASSY, and release it from the securing fixtures. (2) Release each hook to remove the fan, and pull out the fan harness from the hole. Guide Fan harness Main frame R ASSY High-voltage power supply PCB ASSY...
Page 213: High-Voltage Power Supply Pcb Assy
9.24 High-voltage Power Supply PCB ASSY (1) Disconnect the HVPS flat cable and the registration front/rear sensor PCB harness 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 214 Assembling Note: • Fold the HVPS flat cable at the positions described below. Mountain fold Valley fold  10 mm  1 mm   1 mm 1 mm Main PCB side HVPS side 45° 15° 15° Electrode Reinforcing plate Fig.
Page 215: Filter
9.25 Filter (1) Release each hook to remove the air duct. (2) Pull out the rib on the air duct in the direction of the arrow, and remove the filter. Hooks Air duct Filter <Back side> Air duct Fig. 3-82 Assembling Note: •...
Page 216: Laser Unit
9.26 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 217 Assembling Note: • Fold the laser unit flat cable at the positions described below. Mountain fold Valley fold  7 mm   1 mm 1 mm   1 mm 1 mm  2 mm Main PCB side Laser unit side 45°...
Page 218: Wireless Lan Pcb (Wireless Network Models Only)
9.27 Wireless LAN PCB (Wireless network models only) (1) Remove the tape on the wireless LAN PCB, and disconnect the wireless LAN PCB from the main PCB ASSY. (2) Remove the gasket from the wireless LAN PCB. Wireless LAN PCB Tape Hole Gasket...
Page 219: Roller Holder Assy
9.28 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 220: Main Pcb Assy
9.29 Main PCB ASSY (1) Disconnect all harnesses and flat cables from the main PCB ASSY. New toner sensor PCB flat cable Main PCB ASSY Main motor flat cable T1 clutch harness (BL) Registration clutch harness (WH) LVPS harness (WH, BR) Internal temperature sensor harness (GR) Eject sensor PCB flat cable...
Page 221: T1 Clutch And Registration Clutch
9.30 T1 Clutch and Registration Clutch (1) Release the T1 clutch harness (BL) and the registration clutch harness (WH) from the securing fixtures. (2) Release the hook, and remove the T1 clutch. (3) Release the hook, and remove the registration clutch. Registration clutch Hook T1 clutch...
Page 222: New Toner Sensor Pcb Assy
9.31 New Toner Sensor PCB ASSY (1) Release the new toner sensor PCB flat cable from the securing fixture. (2) Release the hook, and remove the new toner sensor PCB ASSY. Disconnect the paper feed sensor harness ASSY from the new toner sensor PCB ASSY, and release it from the securing fixtures.
Page 223: Main Frame L Assy
9.32 Main Frame L ASSY (1) Remove the two taptite bind B M4x12 screws, and remove the front chute ASSY. (2) Release the LVPS harness from the securing fixtures. (3) Remove the regist FG spring from the motor drive sub ASSY and the conductive bushing 5.
Page 224 (6) Remove the taptite bind B M4x12 (6a) screw (for securing the under bar), the taptite cup S M3x6 SR (6b) screw (for securing the chute ground plate), the taptite bind B M4x12 (6c) screw (for securing the registration chute) and the taptite cup S M3x8 SR (6d) screw (for securing the laser L FG plate).
Page 225: Main Motor
9.33 Main Motor (1) Release the main motor flat cable from the securing fixtures. (2) Remove the taptite bind B M4x12 screw. Release the hook A, and remove the flat cable guide from the motor drive sub ASSY. (3) Remove the screw pan (S/P washer) M3x12DB screw, and remove the laser L FG plate from the motor drive sub ASSY.
Page 226 (5) Remove the taptite cup S M3x8 SR screw to remove the motor plate calking ASSY and the drum idle gear 68R from the motor drive sub ASSY. (6) Remove the three screw bind M3x4 screws to remove the main motor from the motor plate calking ASSY.
Page 227: Fuser Gear 67R/40R
9.34 Fuser Gear 67R/40R (1) Remove the fuser gear 67R/40R from the main frame L ASSY. Fuser gear 67R/40R Main frame L ASSY Fig. 3-100 3-94 Confidential...
Page 228: Eject Sensor Pcb Assy
9.35 Eject Sensor PCB ASSY 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 main frame L ASSY.
Page 229 (2) Release the hook A, and remove the eject sensor PCB ASSY from the pin on the main frame L ASSY. (3) Release the back cover/duplex tray sensor harness from the guide on the main frame L ASSY. (4) Release the hooks B, and remove the back cover/duplex tray sensor from the main frame L ASSY.
Page 230: 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) Remove the taptite cup S M3x8 SR screw, and remove the laser R FG plate. (3) Remove the taptite cup S M3x8 SR screw and the taptite bind B M4x12 screw.
Page 231 (4) Release the registration front/rear sensor PCB 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, and remove the main frame R ASSY. Pull out the registration front/rear sensor PCB harness from the hole.
Page 232 (6) Remove the taptite bind B M3x10 screw. Release the each hook, and remove the registration front/rear actuator holder ASSY from the registration chute. Pull out the registration front/rear sensor PCB harness from the hole. Taptite bind B M3x10 Registration front/rear actuator holder ASSY Hook Registration front/rear...
Page 233: 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 • Setting by Spec (Function code: 74) • Installing Firmware (Sub firmware, demo firmware, panel firmware, and main firmware) •...
Page 234: Setting By Spec (Function Code: 74)
1.1 Setting by Spec (Function code: 74) Configure the setting by spec as described in “1.3.23 Setting by spec (function code: 74)” in Chapter 1.2 Installing Firmware (Sub firmware, demo firmware, panel firmware, and main firmware) 1.2.1 Checking firmware version Check whether the firmware installed on the machine is the latest version.
Page 235: Initializing The Eeprom Of The Main Pcb Assy (Function Code: 01)
"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 236: Setting Serial Number And Entering Adjusted Value Of Laser Unit
3) Click "Properties". The "Brother Maintenance USB Printer Properties" window appears. 4) Click the "Ports" tab. The Brother Maintenance USB Printer port number is displayed. (7) Enter the serial number (15 digits) of the machine in the [Serial No] field.
Page 237: Acquiring White Level Data (Function Code: 55)
1.5 Acquiring White Level Data (Function code: 55) Acquire white level data as described in “1.3.17 Acquire white level data and set CIS scan area (function code: 55)” in Chapter 1.6 Adjusting Touch Panel (Function code: 61) (Touch panel models only) Adjust the touch panel as described in “1.3.18 Adjust touch panel (function code: 61)”...
Page 238: 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 “1.3.29 Reset irregular power supply detection counter of low-voltage power supply...
Page 239: 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 240: Entering Adjusted Value Of Laser Unit
3) Click "Properties". The "Brother Maintenance USB Printer Properties" window appears. 4) Click the "Ports" tab. The Brother Maintenance USB Printer port number is displayed. (7) Check the laser serial number label attached to the location shown in the figure below.
Page 241: If You Replace The Panel Unit Or Panel Pcb Unit
4. IF YOU REPLACE THE PANEL UNIT OR PANEL PCB UNIT  What to do after replacement • Installing Firmware (Touch panel models only) • Adjusting Touch Panel (Function code: 61) (Touch panel models only) • Checking LCD Operation (Function code: 12) ...
Page 242: Installing Firmware (Touch Panel Models Only)
4.1 Installing Firmware (Touch panel models only) 4.1.1 Checking firmware version Check whether the firmware installed on the machine is the latest version as described in “1.2.1 Checking firmware version” in this chapter. If it is the latest version, there is no need to install the firmware.
Page 243: If You Replace The First Side Cis Unit Or Document Scanner Unit
5. IF YOU REPLACE THE FIRST 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 “1.3.17 Acquire white level data and set CIS scan area (function code: 55)”...
Page 244: If You Replace The Adf Unit Or Second Side Cis Unit
6. IF YOU REPLACE THE ADF UNIT OR SECOND SIDE CIS UNIT  What to do after replacement • Acquiring White Level Data (Function code: 55) (Duplex scanning models only) • Scanning and Printing Check 6.1 Acquiring White Level Data (Function code: 55) (Duplex scanning models only) Acquire white level data as described in “1.3.17 Acquire white level data and set CIS scan...
Page 245: 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. These keys allow you to execute sensor operation check, test printing, log information and error code display, or worker switch (WSW) setting. 1.1 How to Enter Maintenance Mode 1.1.1 Method of entering maintenance mode for service personnel <Operating Procedure>...
Page 246: 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 "1.2 List of Maintenance Mode Functions"...
Page 247: List Of Maintenance Mode Functions
1.2 List of Maintenance Mode Functions Function Function Refer to: code Initialize EEPROM parameters 1.3.1 Print white level / black level data for document scanning 1.3.2 compensation ADF performance test 1.3.3 Monochrome print quality test pattern 1.3.4 Set worker switches (WSW) 1.3.5 Print worker switch (WSW) setting data 1.3.5...
Page 248: 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. Entering function code 91 initializes only the specified areas as shown in the table below.
Page 249: Print White Level / Black Level Data For Document Scanning Compensation (Function Code: 05)
1.3.2 Print white level / black level data for document scanning compensation (function code: 05) <Function> This function is used to print the contrast level data for document scanning compensation. <Operating Procedure> Note: • Be sure not to perform this operation procedure immediately after the power is turned ON, but after performing the document scanning operation at least once.
Page 250  Data to be printed (common to monochrome / color) a) LED CURRENT 1 Byte b) LED pulse data1 (UP) (G) 2 Byte c) LED pulse data1 (DOWN) (G) 2 Byte d) LED pulse data1 (UP) (B) 2 Byte e) LED pulse data1 (DOWN) (B) 2 Byte f) LED pulse data1 (UP) (R) 2 Byte...
Page 251: Adf Performance Test (Function Code: 08)
1.3.3 ADF performance test (function code: 08) <Function> This function is used to test the performance of the automatic document feeder (ADF). The scanned pages of the documents fed by the ADF are counted and the result is displayed on the LCD.
Page 252: Monochrome Print Quality Test Pattern (Function Code: 09)
1.3.4 Monochrome print quality test pattern (function code: 09) <Function> This function is used to print monochrome test patterns to check any missing image and print quality. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [0], and then the [9] key in the state of maintenance mode to display initial state of maintenance mode.
Page 253: 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 (WSW) (function code: 10) <Function> The worker switches shown in the table below can be used to set the function to satisfy various requirements.
Page 254 <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [1], and then the [0] key in the state of maintenance mode to display initial state of maintenance mode. "MAINTENANCE 10"...
Page 255 [2] Print worker switch (WSW) setting data (function code: 11) <Function> This function is used to print the setting items of the worker switches and the set details. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [1] key twice in the initial state state of maintenance mode to display of maintenance mode.
Page 256: Check Lcd Operation (Function Code: 12)
 <Monochrome LCD models> For models with backlight For models without backlight (DCP-7080/7080D/7180DN/ (DCP-L2500D/L2520D/L2520DW, L2540DN/L2540DW/L2541DW, MFC-L2680W/L2700D/L2701D/L2700DN/ MFC-7380/7480D/7880DN) L2700DW/L2701DW/L2703DW/L2705DW) <Display 1> <Display 1> <Display 2>...
Page 257 <Color LCD models (DCP-L2560DW, HL-L2380DW, MFC-L2720DW/L2740DW)> <Display 1> <Display 2> <Display 3> <Display 4> <Display 5> <Display 6> <Display 7> Fig. 5-5 5-13 Confidential...
Page 258: Check Control Panel Operation (Function Code: 13)
1.3.7 Check control panel operation (function code: 13) <Function> This function is used to check that keys on the control panel are operating normally. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [1], and then the [3] key in the state of maintenance mode to display initial state of maintenance mode.
Page 259: Display Software Version (Function Code: 25)
1.3.8 Display software version (function code: 25) <Function> This function is used to check operation data (version and checksum information) for software parts. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [2], and then the [5] key in the state of maintenance mode to display initial state of maintenance mode.
Page 260: Change Onepushdemo Function Setting (Function Code: 28)
1.3.9 Change OnePushDemo function setting (function code: 28) <Function> This function is used to implement Demo printing by pressing keys, and is mainly used for sales promotion at dealers. This function is disabled once printing is performed from the computer. Change the setting to enable the function. OnePushDemo = ON (Enabled) / OFF (Disabled) The setting currently selected is marked "*".
Page 261: Check Sensor Operation (Function Code: 32)
1.3.10 Check sensor operation (function code: 32) <Function> This function is used to check that sensors are operating normally. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [3], and then the [2] key in the state of maintenance mode to display initial state of maintenance mode.
Page 262  Location of sensors Registration rear actuator Registration front/rear sensor Internal temperature sensor Front cover sensor Front cover sensor lever Eject sensor Registration front actuator Back cover/duplex tray sensor Paper feed sensor Eject actuator New toner actuator Paper feed actuator New toner sensor Fig.
Page 263: Display Lan Connection Status (Function Code: 33)
1.3.11 Display LAN connection status (function code: 33) <Function> This function is used to check the connection status of the wired LAN. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [3] key twice in the initial state state of maintenance mode to display of maintenance mode.
Page 264: Set Pc Print Functions (Function Code: 43)
1.3.12 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> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [4], and then the [3] key in the state of maintenance mode to display initial state of maintenance mode.
Page 265 Description Set value Default Orientation Print direction setting PortLait/Landscape Portlait P-Pos X-Offset Print position offset in X -500 to 500 (1/300 dpi) 0 (1/300 dpi) (landscape) direction P-Pos Y-Offset Print position offset in Y (portrait) -500 to 500 (1/300 dpi) 0 (1/300 dpi) direction Auto FF...
Page 266 Detail description Emulation Changes the print language. The Function Menu setting becomes valid. For data with ENTERLANGUAGE, this setting supersedes the setting on the LCD. Auto I/F Time Change the interface open time. This setting becomes valid when PC print is instructed, and becomes invalid when PC-Scan or Remote-SetUp is instructed.
Page 267: Change Usb No. Return Value / Adjust Left-End Print Start Position On Second Side When Duplex Printing (Function Code: 45)
1.3.13 Change USB No. return value / Adjust left-end print start position on second side when duplex printing (function code: 45)  Change USB No. return value <Function> ® When the operating system (OS) installed on the computer is Windows Vista , and the machine is connected to this computer using USB2.0FULL, the OS may not be able to obtain the USB device serial number depending on the computer and USB device.
Page 268  Adjust left-end print start position on second side when duplex printing <Function> In the event that the left-end print start position deviates on the second side when duplex printing, use this function to adjust the position left and right. The adjustable range is -100 to 750 (unit: 300 dpi).
Page 269: Set Country / Language (Function Code: 52)
1.3.14 Set country / language (function code: 52) <Function> This function is user accessible, and is used to customize the EEPROM according to the language, function settings, and firmware switch settings. Note: • This function can be used only in the following nations: Around France, Pan-Nordic, East Europe, and Iberia.
Page 270: Transfer Received Fax Data / Log Information (Function Code: 53) (Fax Models Only)
1.3.15 Transfer received fax data / log information (function code: 53) (fax models only) <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 271 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 Serial number...
Page 272: Fine-Tune Scanning Position (Function Code: 54)
1.3.16 Fine-tune scanning position (function code: 54) <Function> This function is used to adjust the scanning start/end positions. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [5], and then the [4] key in the state of maintenance mode to display initial state of maintenance mode.
Page 273: Acquire White Level Data And Set Cis Scan Area (Function Code: 55)
1.3.17 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 274: Adjust Touch Panel (Function Code: 61)
• This adjustment requires a touch panel stylus with a thin tip. A commercially available stylus designed for electronic dictionaries or personal digital assistance (PDA) can be used. If one is not available at hand, order a "STYLUS" from Brother's parts list. <Operating Procedure>...
Page 275: 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> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [6], and then the [7] key in the state of maintenance mode to display initial state of maintenance mode.
Page 276 <Print pattern> Description SELECT:K 100% 100% solid printing SELECT:W 100% No printing SELECT:K 1% 1% intermittent pattern printing * SELECT:K 5% 5% intermittent pattern printing * SELECT:Lattice Lattice printing SELECT:Total Print total pattern * For job printing, up to 500 sheets for single-side printing, and 1,000 pages for duplex printing.
Page 277 <Number of pages per job> Description SELECT:1P/JOB Prints 1 page per job SELECT:2P/JOB Prints 2 pages per job SELECT:5P/JOB Prints 5 pages per job  Print pattern SELECT: K 100% SELECT: W 100% SELECT: Total SELECT: K 1% SELECT: K 5% SELECT: Lattice Fig.
Page 278: 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 a single side of the paper to check for printing flaws and omission. <Operating Procedure> For models without keypad For models with keypad (1) Set the paper specified in the default (1) Set the paper specified in the default paper settings (A4 or Letter) to the paper...
Page 279: 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> For models without keypad For models with keypad (1) Set the paper specified in the default (1) Set the paper specified in the default paper settings (A4 or Letter) to the paper...
Page 280: Print Test Pattern (Function Code: 71)
1.3.22 Print test pattern (function code: 71) <Function> This function is used to print the test pattern to check whether the developer roller or exposure drum is dirty or damaged. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [7], and then the [1] key in state of maintenance mode to display...
Page 281 <Paper size> Description SELECT:LETTER Letter SELECT:A4 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 <Print specification> Description SELECT:PLAIN Plain paper SELECT:THICK Plain paper (thick) SELECT:THIN Plain paper (thin) SELECT:THICKER...
Page 282  Test pattern 2D3S K Fig. 5-18 5-38 Confidential...
Page 283: Setting By Spec (Function Code: 74)
1.3.23 Setting by spec (function code: 74) <Function> This function is used to customize the machine according to language, function settings, and worker switch settings. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [7], and then the [4] key in the state of maintenance mode to display initial state of maintenance mode.
Page 284 Brazil 0142 Canada 0102 Chile 0136 Indonesia 0129 DCP-L2540DW Malaysia 0140 Peru 0136 Philippines 0121 Thailand 0140 U.S.A 0101 Note: • This code list is current as of May 2014. Please contact Brother distributors for the latest information. 5-40 Confidential...
Page 285 0250 France 0205 Austria 0214 Germany 0253 Germany 0203 Israel 0217 Poland 0239 Switzerland 0210 0204 MFC-L2700DNR Russia 0248 Note: • This code list is current as of May 2014. Please contact Brother distributors for the latest information. 5-41 Confidential...
Page 286 Peru 0036 Philippines 0021 Poland 0039 South Africa 0024 Switzerland 0010 Taiwan 0023 Thailand 0040 U.S.A 0001 0041 0004 Note: • This code list is current as of May 2014. Please contact Brother distributors for the latest information. 5-42 Confidential...
Page 287 0013 Finland 0012 Pan-Nordic 0057 Norway 0007 Sweden 0026 Others 0050 Switzerland 0010 U.S.A 0001 0004 MFC-L2720DWR Russia 0048 Note: • This code list is current as of May 2014. Please contact Brother distributors for the latest information. 5-43 Confidential...
Page 288 0050 Peru 0036 South Africa 0024 Switzerland 0010 Taiwan 0023 Thailand 0040 U.S.A 0001 0041 0004 MFC-L2740DWR Russia 0048 Note: • This code list is current as of May 2014. Please contact Brother distributors for the latest information. 5-44 Confidential...
Page 289: 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> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [7] key twice in the initial state state of maintenance mode to display...
Page 290 Model name Total printed pages Serial number Copied pages Model code Printed PC pages Country code List/Fax pages Switch check sum (factory use) Accumulated average coverage Main firmware version Average coverage by the current toner cartridge Sub firmware version Average coverage by the previous toner cartridge Boot firmware version Drum page count...
Page 291: 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> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial...
Page 292: Display Machine Log Information (Function Code: 80)
1.3.26 Display machine log information (function code: 80) <Function> This function is used to display the log information on the LCD. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [8], and then the [0] key in the state of maintenance mode to display initial state of maintenance mode.
Page 293 Description ENVLOP:00000000 Paper input for Envelope :00000000 Paper input for A5 (including A5 Landscape) OTHER :00000000 Paper input for other sizes PLTNRE:00000000 Printed pages of plain, thin, and recycled paper TKTRBD:00000000 Printed pages of thick, thicker, and bond paper ENVTYP:00000000 Printed pages of envelope, thick envelope, and thin envelope LABEL:00000000 Printed labels...
Page 294 01 to 10 will be displayed for "##" in chronological order. Pressing the [SET] or [OK] key while the machine error log is displayed shows "PGCNT:00000000" (total pages printed at the time of the error) on the LCD. The serial number can be changed according to the procedures below. For models without keypad For models with keypad Press the [▲] or [▼] key while the...
Page 295: Display Machine Error Code (Function Code: 82)
1.3.27 Display machine error code (function code: 82) <Function> This function is used to display the latest error code on the LCD. <Operating Procedure> For models without keypad For models with keypad (1) Press the [▲] or [▼] key in the initial (1) Press the [8], and then the [2] key in the state of maintenance mode to display initial state of maintenance mode.
Page 296: Reset Irregular Power Supply Detection Counter Of Low-Voltage Power Supply Pcb (Function Code: 88)
1.3.29 Reset irregular power supply detection counter of low-voltage power supply PCB (function code: 88) <Function> This function is used to reset the corresponding counter after the low-voltage power supply PCB ASSY is replaced. The number of times the part has been replaced is increased by one. <Operating Procedure>...
Page 297: Other Service Functions
2. OTHER SERVICE FUNCTIONS 2.1 Print Communication Error List <Function> This function is used to print the communication error list (Communication List). <Operating Procedure> (1) Press the [Menu] key while the machine is in the ready state and press the [#], [1], [0], [4], [1], and [4] key in this order immediately.
Page 298: Chapter 6 Wiring Diagram
CHAPTER 6 WIRING DIAGRAM 1. WIRING DIAGRAM Duplex scan models only Main PCB HAIN1 MODE CISMODE_BS Motor Relay R3.3V RGND Single scan SLEEPn VCC(R3.3V) model only RMOT1 STEP VREF RDPT4 RMOT2 CISTG_BS motor RMOT3 USM0 CISCLK_BS RMOT4 USM1 LED_Anode LEDEN2 +24V RMPT2 VREF...
Page 299: Chapter 7 Periodical Maintenance
CHAPTER 7 PERIODICAL MAINTENANCE 1. PERIODICAL REPLACEMENT PARTS There are no parts to be replaced periodically. Confidential...
Page 300: Appendix 1 Serial Numbering System
APPENDIX 1 SERIAL NUMBERING SYSTEM  Serial number labels for the machine itself <How to Read> Serial number A 4 J 1 1 1 1 0 1 Serial number (6-digit) Product identification Manufacturing factory No. code Year of manufacture 4: 2014 5: 2015 Month of manufacture A: January...
Page 301: 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] key while the (1) Press the [Settings] key while the machine is in the ready state.
Page 302: 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 303 (7) Select “Install the software automatically (Recommended)” and click [Next]. (8) Alert warning message of WHQL appears. Click [Continue Anyway] to proceed. App. 3-2 Confidential...
Page 304 (9) Repeat steps (6) to (8) three times. Installation is completed. (10) If the Brother Maintenance USB Printer driver is successfully installed, the following message screen appears. Click [Finish] to return. App. 3-3 Confidential...
Page 305 Note: In order to check whether the printer driver is successfully installed, click [Start], [Settings], [Printers] to select the Printers window. Then, check that the Brother Maintenance USB Printer icon is shown. App. 3-4 Confidential...
Page 306 Disconnect the USB cable that connects the machine with your computer. (2) Turn ON your computer. (3) Double-click Setup.exe inside the Brother Maintenance USB Printer folder that was saved in a temporary folder. The following screen appears. Click the [Next] button.
Page 307 (4) Wait for the following screen to appear and click [Finish]. (5) Plug the power 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-7080 Service Manual

Regulation

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 & 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 Pcb Unit

If You Replace the First Side Cis Unit or Document Scanner Unit

If You Replace the Adf Unit or Second Side Cis 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

SERVICE MANUAL

Troubleshooting

Related Manuals for Brother DCP-7080

Summary of Contents for Brother DCP-7080