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Brother DCP-7090 Service Manual
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Brother DCP-7090 Service Manual

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MODEL
MODEL
DCP-7090/7095D/7190DN/7195DW
DCP-7090/7095D/7190DN/7195DW
DCP-B7500D/B7520DW/B7530DN/B7535DW
DCP-B7500D/B7520DW/B7530DN/B7535DW
DCP-L2510D/L2511D/L2512D/L2530DW
DCP-L2510D/L2511D/L2512D/L2530DW
DCP-L2531DW/L2532DW/L2535D/L2535DW
DCP-L2531DW/L2532DW/L2535D/L2535DW
DCP-L2536D/L2537DW/L2550DN/L2550DW
DCP-L2536D/L2537DW/L2550DN/L2550DW
DCP-L2551DN/L2551DW/L2552DN
DCP-L2551DN/L2551DW/L2552DN
HL-L2390DW/L2395DW
HL-L2390DW/L2395DW
MFC-7390/7490D/7890DN/7895DW
MFC-7390/7490D/7890DN/7895DW
MFC-B7700D/B7715DW/B7720DN
MFC-B7700D/B7715DW/B7720DN
MFC-L2690DW/L2710DN/L2710DW/L2712DN
MFC-L2690DW/L2710DN/L2710DW/L2712DN
MFC-L2712DW/L2713DW/L2715D/L2715DW
MFC-L2712DW/L2713DW/L2715D/L2715DW
MFC-L2716D/L2716DW/L2717DW
MFC-L2716D/L2716DW/L2717DW
MFC-L2730DW/L2732DW/L2750DW
MFC-L2730DW/L
MFC-L2751DW/L2752DW/L2770DW/L2771DW
MFC-L2751DW/L2752DW/L2770DW/L2771DW
Read this manual thoroughly before maintenance work.
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
Keep this manual in a convenient place for quick and easy reference at all times.
 August 2017
 August 2017
SM-FAX186
SM-FAX186
Brother Laser MFC
Brother Laser MFC
SERVICE MANUAL
SERVICE MANUAL
2732DW/L2750DW/L2750DWXL
/L2750DWXL

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Summary of Contents for Brother DCP-7090

  • Page 1 Brother Laser MFC Brother Laser MFC SERVICE MANUAL SERVICE MANUAL MODEL MODEL DCP-7090/7095D/7190DN/7195DW DCP-7090/7095D/7190DN/7195DW DCP-B7500D/B7520DW/B7530DN/B7535DW DCP-B7500D/B7520DW/B7530DN/B7535DW DCP-L2510D/L2511D/L2512D/L2530DW DCP-L2510D/L2511D/L2512D/L2530DW DCP-L2531DW/L2532DW/L2535D/L2535DW DCP-L2531DW/L2532DW/L2535D/L2535DW DCP-L2536D/L2537DW/L2550DN/L2550DW DCP-L2536D/L2537DW/L2550DN/L2550DW DCP-L2551DN/L2551DW/L2552DN DCP-L2551DN/L2551DW/L2552DN HL-L2390DW/L2395DW HL-L2390DW/L2395DW MFC-7390/7490D/7890DN/7895DW MFC-7390/7490D/7890DN/7895DW MFC-B7700D/B7715DW/B7720DN MFC-B7700D/B7715DW/B7720DN MFC-L2690DW/L2710DN/L2710DW/L2712DN MFC-L2690DW/L2710DN/L2710DW/L2712DN MFC-L2712DW/L2713DW/L2715D/L2715DW MFC-L2712DW/L2713DW/L2715D/L2715DW MFC-L2716D/L2716DW/L2717DW MFC-L2716D/L2716DW/L2717DW MFC-L2730DW/L MFC-L2730DW/L2732DW/L2750DW 2732DW/L2750DW/L2750DWXL /L2750DWXL...
  • Page 2 Trademarks Trademarks BROTHER is either a trademark or a registered trademark of Brother Industries, Ltd. BROTHER is either a trademark or a registered trademark of Brother Industries, Ltd. Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries.
  • Page 3 This product includes open-source software. This product includes open-source software. Go to the manual download selection of your model’s home page of Brother Solutions Center at Go to the manual download selection of your model’s home page of Brother Solutions Center at support.brother.com to view the Open Source Licensing Remarks and Copyright Information.
  • Page 4 CONTENTS CONTENTS SAFETY INFORMATION SAFETY INFORMATION CHAP APTE TER 1 SUPP PPLE LEME MENT NTAL S PECI CIFI FICA CATIO TIONS GENERA GENERAL ..............................................
  • Page 5 4.2.2 4.2.2 No pa No paper f per feedin eeding from g from MP tra MP tray y ................................ 2-74 2-74 4.2.3 4.2.3 No pa No paper f per feeding eeding from from manual...
  • Page 6 4.13.3 4.13.3 Commun Communicati ication on error occurs error occurs ................................2-114 2-114 4.13.4 4.13.4 Recei Receive buffer ful ve buffer full during rec l during receiving in eiving into memory to memory ..
  • Page 7 9.13.2 Panel PCB ASSY / NFC PCB ASSY / LCD ............3-56 9.13.3 Touch panel ASSY ....................3-57 9.14 Panel unit (For Non-touch panel models) ................. 3-58 9.14.1 Panel unit ......................3-58 9.14.2 Panel PCB ASSY ....................3-59 9.14.3 LCD ........................3-60 9.15 Panel flat cable / First side CIS unit / First side CIS flat cable .........
  • Page 8 2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY ......... 4-7 Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB (Function code 88) ............ 4-7 3. IF YOU REPLACE THE LASER UNIT ..................4-8 Entering Adjusted Value of Laser Unit ................4-9 4.
  • Page 9 1.3.20 Print frame pattern (single-side printing) (Function code 69) ....... 5-40 1.3.21 Print frame pattern (duplex printing) (Function code 70) ........5-41 1.3.22 Test pattern (Function code 71) ................5-42 1.3.23 Configure for country/region and model (Function code 74) ........ 5-45 1.3.24 Print maintenance information (Function code 77) ..........
  • Page 10 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 11 Doing this might cause an electrical shock. • Brother strongly recommends that you DO NOT use any type of extension cord. • DO NOT put toner cartridges or a toner cartridge and drum unit assembly into a fire or places susceptible to fire.
  • Page 12 When you move the product, carry the product as shown in the illustration. (Products with scanning function only) To prevent injuries, be careful not to put your fingers in the areas shown in the illustrations. (MFC models only) When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electrical shock, and injury to people.
  • Page 13 Caution for Laser Product (WARNHINWEIS für Laserdrucker)  CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit.  ACHTUNG: Im Falle von Störungen der Lasereinheit muß...
  • Page 14 If you have questions about what will disable alarm equipment, call your telephone company or a qualified installer. If you are not able to solve a problem with your product, contact Brother Customer Service (see the Online User's Guide: Brother numbers).
  • Page 15 • 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 16 MFC-L2690DW MFC-B7715DW MFC-L2713DW MFC-L2710DN MFC-B7720DN MFC-L2715DW Model MFC-7390 MFC-7490D MFC-L2710DW MFC-L2715D MFC-L2716DW MFC-L2712DN MFC-L2716D MFC-L2717DW MFC-L2712DW Warm up Time Less than 9 sec. at 73.4F / 50% (23°C / 50%) (From Sleep Mode) Less than 27 sec. at 73.4F / 50% (23°C / 50%) (MFC-B7715DW for EU, Warm up Time...
  • Page 17 MFC-L2750DW MFC-L2730DW MFC-7890DN MFC-L2750DWXL MFC-L2770DW Model MFC-7895DW MFC-L2732DW MFC-B7700D MFC-L2751DW MFC-L2771DW MFC-L2752DW Less than 9 sec. Less than 4.0 sec. Less than 4.0 sec. Warm up Time Less than 9 sec. at 73.4F / 50% at 73.4F / 50% at 73.4F / 50% (From Sleep Mode) at 73.4F / 50% (23°C / 50%) (23°C / 50%)
  • Page 18 2. NETWORK CONNECTIVITY DCP-7090 DCP-7095D DCP-L2530DW DCP-7190DN DCP-B7500D DCP-L2531DW DCP-B7530DN DCP-L2510D DCP-L2532DW Model DCP-L2550DN DCP-B7520DW DCP-L2511D DCP-L2535DW DCP-L2551DN DCP-L2512D DCP-L2537DW DCP-L2552DN DCP-L2535D HL-L2390DW DCP-L2536D Wired network Network NC-9300h NC-9300h node type type2 type2 Wireless network Network NC-8800w type2 node type...
  • Page 19 CHAP APTE TER 2 ERRO ROR I NDIC TIONS TROUBLESHOOTING TROUBLESHOOTING Troubleshooting is the countermeasure procedures that the service personnel should follow if Troubleshooting is the countermeasure procedures that the service personnel should follow if an error or malfunction occurs with the machine. It is impossible to anticipate all of the possible an error or malfunction occurs with the machine.
  • Page 20 Warning Warning  use any flammable spray or flammable solvent such as alcohol,  use any flammable spray or flammable solvent such as alcohol, DO NOT DO NOT benzine, or thinner in or around the machine. Otherwise a fire or electric shock benzine, or thinner in or around the machine.
  • Page 21 1.2 Che Checks cks befo before re Com Commen mencin cing T g Trou rouble bleshoo shootin ting g Check the following items before attempting to repair the machine. Check the following items before attempting to repair the machine.  ...
  • Page 22   Cleaning Cleaning Use a soft dry lint-free cloth. Use a soft dry lint-free cloth. Warning Warning  use any flammable spray or flammable solvent such as alcohol, benzine,  use any flammable spray or flammable solvent such as alcohol, benzine, DO NOT DO NOT or thinner to clean the machine.
  • Page 23 2. 2.1 1 Cr Cros oss- s-se sect ctio ion n Dr Draw awin ing g 2. 2.1. 1.1 1 Pr Prin inte ter r p p ar art t   Manual feed slot models Manual feed slot models E E j j e e c c t t r r o o l l l l e e r r 2 2 E E x x p p o o s s u u r r e e d d r r u u m m L L a a s s e e r r u u n n i i t t...
  • Page 24   MP models MP models E E j j e e c c t t r r o o l l l l e e r r 2 2 E E x x p p o o s s u u r r e e d d r r u u m m L L a a s s e e r r u u n n i i t t R R e e g g i i s s t t r r a a t t i i o o n n r r e e a a r r a a c c t t u u a a t t o o r r Registration roller ...
  • Page 25 2. 2.1. 1.2 2 Sc Scan anne ner r p p ar art t   SX models SX models Document pinch roller 1 Document pinch roller 1 Document separation pad Document separation pad Document feed roller 1 Document feed roller 1 Document separate roller ...
  • Page 26  DX models Document pinch roller 1 Document separation pad Document feed roller 1 Document separate roller  Document separate roller ASSY Document feed roller 2 Document tray <Left side> <Right side> Document stopper  Document pinch roller 2 Document scanning position actuator  Second side document hold Document eject roller ...
  • Page 27 2.2 Paper Feeding 2.2.1 Printer part  Manual feed slot models Eject to output tray Feed from manual feed slot Eject to back side <Back side> <Front side> Duplex path Fig. 2-5   Confidential ...
  • Page 28  MP models Feed from MP tray Eject to back side <Back side> <Front side> Fig. 2-6 2-10   Confidential ...
  • Page 29 2.2.2 Scanner part Document feed path Fig. 2-7 2-11   Confidential ...
  • Page 30 2.3 Operation of Each Part and Location of Parts Part name Operation Paper pick up roller  Feeds the paper to the separation roller from the paper tray. Separation roller, Separates paper fed from the paper tray into single sheets. Separation pad Paper feed actuator Detects paper trays (open / closed).
  • Page 31 Part name Operation New toner sensor When exchange to the new toner cartridge, detects the kinds of toner and add 1 to the reset of the developing bias and to the exchange count. Toner sensor Detects the toner cartridge is set. External temperature/humidity Detects external temperature and humidity around the sensor ...
  • Page 32 Error message Error Refer Description codes Upper line Lower line Print Data Full Print Data is full. The memory used to store Press Stop[x] and secure print data exceeded the memory size for secure print delete the C800 2-70 data. previously stored data.
  • Page 33 Error message Error Refer Description codes Upper line Lower line Print Unable Turn the power off  An error occurred in the high- and then back on voltage power supply PCB 0B01 2-51  ASSY while operating. again.  An error occurred in the high- voltage power supply PCB 0B02 2-51...
  • Page 34 Error message Error Refer Description codes Upper line Lower line Replace Toner - Dot count or develop roller counter of the toner cartridge in models without toner box has 4C01 2-52 reached the upper limit in the toner stop mode. The amount of toner supplied of the toner box has reached the 4C06...
  • Page 35 Error message Error Refer Description codes Upper line Lower line Size Error Specify the correct For printing by feeding paper paper size for Tray from the paper tray, the size of paper specified from the driver 9702 2-64 set the size which was not supported by the paper tray.
  • Page 36 Error message Error Refer Description codes Upper line Lower line Supplies Drum End Soon Number of the drum unit rotations reaches the upper limit 4000 2-52 soon. Replace Drum Number of the drum unit rotations has reached the upper 4200 2-52 limit.
  • Page 37 Error message Error Refer Description codes Upper line Lower line 2-sided The back cover sensor detected Disabled the open state when 2-sided printing is started (before the 8903 2-61 registration of printing in the engine). The back cover sensor detected the open state during 2-sided 8904 2-61...
  • Page 38 3.3 Communication Errors Code 1 Code 2 Cause Refer to: No document set when calling. 4.11.1 Wrong fax number called. 4.13.1 No dial tone detected before dialing. 4.13.1 Busy tone detected before dialing. 4.13.1 2nd dial tone not detected. 4.13.1 No loop current detected.
  • Page 39  Error code 4F01 The new toner sensor of the toner cartridge could not detect a new cartridge properly. <User Check> • Replace the toner cartridge with a new toner cartridge again. • If the machine is on the uneven surface, place it on a level surface. Step Cause Remedy...
  • Page 40  Error code 6001 The front cover sensor detected that the front cover was open. <User Check> • Close the front cover. Step Cause Remedy Connection failure of the front Reconnect the front cover sensor cover sensor harness harness. Front cover failure Replace the front cover.
  • Page 41  Error code 6101 The new toner sensor detected that no toner cartridge was set. <User Check> • Set the toner cartridge correctly. Step Cause Remedy New toner sensor PCB failure Replace the new toner sensor PCB ASSY. High-voltage power supply PCB Replace the high-voltage power supply failure PCB ASSY.
  • Page 42  Electrodes location of main body Fig. 2-12  Electrodes location of the drum unit and process unit Fig. 2-13...
  • Page 43  Error code 6801 The side thermistor detected a temperature higher than the specified value. <User Check> • Lower the room temperature. • Keep the machine away from heating appliances. • Check that the fan is not clogged. Step Cause Remedy Connection failure of the side Reconnect the side thermistor harness.
  • Page 44  Error code 6A00 Electric discharge that may be caused by dirt on the corona wire of the drum unit was detected. <User Check> • Slide the green tab of the drum unit to left and right for two to three times to clean the corona wire. •...
  • Page 45  White spots on image <User Check> • Check that the fan is not clogged. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
  • Page 46  Spots or dirt <User Check> • Check if damp paper is used. • Refer to <How to clean the drum unit> to remove the dirt from the exposure drum using a cotton applicator. • Replace the drum unit with a new one. •...
  • Page 47  Band <User Check> • Clean the corona wire of the drum unit. • Clean the corona wire by sliding the green tab of the drum unit to the left end. • This problem may disappear after printing multiple sheets of paper. •...
  • Page 48 (2) Use the numbered markers next to the drum roller to find the mark on the drum. For example, a dot in column 2 on the check sheet means that there is a mark in drum region “2”. Fig. 2-21 (3) Turn the edge of the drum unit towards you while looking at the drum surface to find the mark.
  • Page 49  Downward fogging of solid color  <User Check> • Replace the toner cartridge with a new one. Step Cause Remedy High-voltage power supply Replace the high-voltage power supply PCB PCB failure  ASSY. Main PCB failure Replace the main PCB ASSY. ...
  • Page 50  Ghost <User Check> • Check the usage environment of the machine. Using the machine in hot-humid or cold-dry conditions can cause this problem. • Check whether appropriate paper type is selected on the driver. • Select “Improve Toner Fixing” in the driver. •...
  • Page 51 4.6 T T roub roubles leshoot hooting ing for for Con Control trol Pane Panel P l Prob roblem lems s 4.6.1 .1 Not Nothin hing is dis g is displa played o yed on the LC n the LCD D <User Check>...
  • Page 52 4.7 T T rou rouble bleshoo shootin ting for T g for Tone oner Cart r Cartrid ridge and D ge and Drum U rum Unit Problems Problems 4.7.1 .1 New New ton toner er not not det detect ected <User Check>...
  • Page 53 4.7.3 4.7.3 T T oner re oner replac placement mes ement message disp sage displayed on LC layed on LCD is not cleared D is not cleared <User Check> <User Check> • • Be sure t Be sure to set a ne o set a new toner c w toner cartrid artridge(or bo...
  • Page 54 4.8 T T roub roubles leshoo hooting ting for for Fus Fuser er Uni Unit P t Probl roblems 4. 4.8. 8.1 1 Fu Fuse ser un r unit fa it failu ilure re S S t t e e p p C C a a u u s s e e R R e e m m e e d d y y Connection failure of the...
  • Page 55 4.10 4.10 T T roubles roubleshootin hooting for g for PCB Problem PCB Problems s 4.10.1Main PCB failure 4.10.1Main PCB failure <User Check> <User Check> • • Turn t Turn the power sw he power switch OFF an itch OFF and then bac d then back ON again k ON again.
  • Page 56 4.11 1 T T roubleshooting for roubleshooting for Document Feeding Document Feeding Problems Problems 4.11.1No document is fed 4.11.1No document is fed <User Check> <User Check> • • Set the docum Set the document proper ent properly and check tha ly and check that the displa t the display on the LCD change y on the LCD changes.
  • Page 57 4.11.3Document jam  Paper jam in the ADF cover  <User Check> • Check that the thickness of the document is 64 to 105 g/m • Check that the paper used for the document is not shorter than 147.3 mm. • Check that the ADF cover is closed correctly. •...
  • Page 58  Paper jam in the paper eject section of the ADF <User Check> • Check that the thickness of the document is 64 to 105 g/m Step Cause Remedy Foreign object in the ADF Remove the foreign object. document eject path Document pinch roller coming Reattach the document pinch roller.
  • Page 59 4.12 Troubleshooting for Scanning Image Defect 4.12.1Defect examples Light Faulty registration Dark Completely blank  All black (2-108) (2-109) (2-109) (2-110) (2-110) Vertical streaks White streaks Partially shaded Fully tinged (2-111) (2-111) (2-112) (2-112) Fig. 2-24 4.12.2Troubleshooting according to image defect ...
  • Page 60  Faulty registration • First side (Document scanner unit) Step Cause Remedy Deviation of the scanning Execute “Fine adjustment of scan start start position position (Function code 54)”. Document scanning position Reattach the document scanning position actuator caught in some actuator.
  • Page 61  Completely blank <User Check> • Check that the document is not reversed. Step Cause Remedy Incorrect white level Execute “Acquire white level data (Function correction data code 55)”. First or second side CIS flat Replace the first or second side CIS flat cable failure cable.
  • Page 62  Vertical streaks <User Check> • Clean the scanner glass or first side/second side scanner glass strip. • Clean the document hold. Step Cause Remedy Dirt inside of scanner glass Clean the inside of the scanner glass. Dirt inside of first side/second Clean the inside of the first side/second side side scanner glass strip scanner glass strip.
  • Page 63  Partially shaded <User Check> • Clean the scanner glass. Step Cause Remedy Dirt inside of scanner glass Clean the inside of scanner glass. Deformed document sponge Replace the document scanner unit.  Fully tinged <User Check> • Clean the scanner glass or first side/second side scanner glass strip.
  • Page 64 2. PACKING Polystyrene pad ASSY Option carton Option carton TBOX Spacer carton Carton Fig. 3-1...
  • Page 65 3. SCREW CATALOGUE Taptite bind B Screw cup Screw cup Taptite bind B M3x6 M3x8 Screw cup Taptite bind B M3x8 M3x10 Taptite bind B Taptite cup S M4x12 Taptite cup S Taptite pan B M3x6 SR Taptite pan B Taptite cup S M4x14 M3x8 SR...
  • Page 66 4. SCREW TORQUE LIST Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Side cover R Taptite bind B M4x12 0.8±0.1 (8±1) Inner chute ASSY Taptite bind B M4x12 0.8±0.1 (8±1) Side cover L Taptite bind B M4x12 0.8±0.1 (8±1) Handset holder ASSY Taptite bind B M4x12 0.8±0.1 (8±1)
  • Page 67 Tightening torque Location of screw Screw type Q’ty N·m (kgf·cm) Low-voltage power supply PCB ASSY Screw cup M3x8 (black) 0.45±0.05 (4.5±0.5) High-voltage power supply PCB ASSY Screw cup M3x8 (black) 0.45±0.05 (4.5±0.5) Taptite bind B M4x12 Toner box relay PCB ASSY 0.8±0.1 (8±1) (For models with toner box)/ MP relay PCB ASSY (For MP models)
  • Page 68 5. LUBRICATION Lubricating oil type Lubrication point Quantity of lubrication (Maker name) BDX313 (A) (Kanto Kasei) Hinge ASSY L 9 places 2.0 mm dia. ball FLOIL BG-10KS (Kanto Kasei) Fuser gear 64R/36R 3 places 1.5 to 2.0 mm dia. ball ...
  • Page 69 6. OVERVIEW OF GEARS <Layout view> 8,9,10 4,5,6 Fig. 3-5 <Development view> Fig. 3-6 Note: • When handling gears, make sure that frame L faces up. Otherwise all gears come off. <Name of gears> D00AHW Ejector gear 16/15 D00HHK Gear 70R DEV LY9006 Ejector gear 33 D00HHM Clutch DEV NON toner box...
  • Page 70 <Layout view> 17,18,19 Fig. 3-7 <Development view> Fig. 3-8 Note: • When handling gears, make sure that frame L faces up. Otherwise all gears come off. <Name of gears> D00EGI Gear toner box idle 32 D00CXT Gear 23R PF D00CUB Sector gear toner box D00AK9 Gear 38L PF...
  • Page 71 (4) Remove the Screw cup M3x8 (black) screw to remove the FB ground harness and the Panel ground harness. Disconnect the Document scanner motor harness from the Main PCB ASSY. (5) Remove the Screw cup M3x8 (black) screw to remove the ADF ground harness. Disconnect the ADF sensor harness and the ADF motor harness from the Main PCB  ASSY.
  • Page 72 (7) Release the Hook to remove the ADF FFC holder while opening the Document scanner unit. (8) Open the Document scanner unit approximately 30 degrees, and remove it by lifting it up. Pull out the Document scanner motor harness and the ADF sensor harness unit from each Hole on the Joint cover.
  • Page 73 9.11 ADF unit  (For models with ADF) 9.11.1 ADF unit (1) Remove the ADF FFC holder from the Panel flat cable, the First side CIS flat cable, and the Second side CIS flat cable. (2) Remove the Taptite bind B M4x12 (black) screw from the Hinge ASSY L. Hinge ASSY L Taptite bind B M4x12 (black) Second side CIS flat cable...
  • Page 74 (3) Open the ADF unit. Release the Hook of the FFC holder ASSY, and remove the FFC holder ASSY from the Document scanner unit. (4) Lift the ADF unit, and remove the ADF unit from the Document scanner unit while pushing the Hook of the Hinge R.
  • Page 75 (6) Remove the three Taptite bind B M4x12 screws to remove the Hinge ASSY L from the ADF unit. Taptite bind B M4x12  ADF unit Hinge ASSY L Fig. 3-32 (7) Remove the Taptite cup B M3x10 screw to remove the Hinge R support and the Hinge R from the Hinge arm R.
  • Page 76 9.11.2 ADF cover ASSY / Document stopper  (1) Open the ADF cover ASSY. Release the two Bosses to remove the ADF cover ASSY from the ADF unit. (2) Release the two Bosses to remove the Document stopper from the ADF unit.  ADF cover ASSY Document stopper ...
  • Page 77 9.11.3 Document sub tray (1) Release each Hook to remove the Gear cover from the ADF unit. (2) Remove the two Taptite cup B M3x10 screws. Release each Hook to remove the ADF front cover from the ADF unit. Gear cover   ADF front cover ...
  • Page 78 9.11.6 Second side CIS unit / Second side CIS flat cable (Only for models with duplex scanning) (1) Remove the six Taptite cup B M3x10 screws to remove the Upper document chute from the  ADF unit. Taptite cup B M3x10 Taptite cup B M3x10 Upper document chute  ADF unit...
  • Page 79 (2) Remove the Screw cup M3x6 (black) screw to remove the ADF ground harness and the Ground spring from the Lower document chute. (3) Release the ADF sensor harness unit from the securing fixtures, and pull it out from the Hole of the Document cover.
  • Page 80 (5) Release the Second side CIS flat cable from the securing fixtures. (6) Lift the Hook and slide the Second side scanner glass strip in the direction of the arrow 6a. Lift the left end of the Second side scanner glass strip to remove it in the direction of the arrow 6b.
  • Page 81 (7) Remove the Second side CIS unit from the Lower document chute, and disconnect the Second side CIS flat cable from the Second side CIS unit. (8) Remove the CIS spacer R and the CIS spacer F from the Second side CIS unit. CIS spacer F Second side CIS unit CIS spacer R...
  • Page 82 Assembling Note: • Fold the Second side CIS flat cable at the positions described below. <Second side CIS side> 8 (The adhesive range on Reinforcing plate) Reinforcing plate 15 (Reinforcing plate)  3    5   ±  1   4   ±  1   45° 4   2  ...
  • Page 83 9.12 Document cover ASSY  (For models without ADF) (1) Release the Hooks of the Hinge L and the Hinge R to remove the Document cover ASSY by lifting it up. Document cover ASSY Hinge R Hooks Hinge L Fig. 3-45...
  • Page 84 (2) Remove the three Taptite cup B M3x10 screws to remove the Hinge arm L and the Hinge L from the Document cover ASSY. (3) Remove the three Taptite cup B M3x10 screws to remove the Hinge arm R and the Hinge R from the Document cover ASSY.
  • Page 85  Common to all models (11) Remove the Taptite bind B M4x12 (11a) screw (for securing the Under bar), the Taptite cup S M3x6 SR (11b) screw (for securing the Chu te ground plate), the Taptite bind B M4x12 (11c) screw (for securing the Registration chute), and the Taptite cup S M3x8 SR (11d) screw (for securing the Laser L FG plate).
  • Page 86 9.31 Paper feed motor / Paper feed motor flat cable (1) Release the Paper feed motor flat cable and the Front cover sensor harness from the securing fixtures. (2) Remove the Taptite bind B M4x12 screw. Release the Hook, and slide the Flat cable guide in the direction of the arrow to remove it from the Motor drive sub ASSY.
  • Page 87 Assembling Note: • If you removed the Motor drive sub ASSY while the Fuser unit was attached on the machine, remove the Fuser unit once (refer to “9.18 Fuser unit”) and reattach it after attaching the Motor drive sub ASSY. The Conductive leaf spring of the Fuser unit may be deformed by the Calking shaft.
  • Page 88 9.32 Fuser gear 64R/36R (1) Remove the Fuser gear 64R/36R from the Frame L unit. Fuser gear 64R/36R Frame L unit Fig. 3-95...
  • Page 89 9.33 Toner sensor PCB ASSY (Only for models with Toner box) (1) Release the Toner box solenoid harness and the Toner sensor harness from the securing fixtures. (2) Remove the two Taptite bind B M4x12 screws. Release the Hook to remove the Toner box drive cover from the Frame L unit.
  • Page 90 9.34 Front cover sensor  (1) Remove the Gear toner box idle 32 and the Sector gear toner box from the Holder toner box. (Only for models with Toner box) (2) Remove the Spring sector gear toner box from the Hook of Holder toner box and the Hook of Lever solenoid.
  • Page 91 9.35 Eject sensor PCB ASSY (1) Remove the Taptite cup S M3x8 SR screw and the Screw pan (S/P washer) M3x12DB screw. Lift the upper side of the Main shield plate up to remove it from the Pin, and pull out the Main shield plate in the direction of the arrow to remove it from the Rib of the Frame L unit.
  • Page 92 (2) Relea Release the H se the Hook A, an ook A, and remove t d remove the Eject s he Eject sensor PC ensor PCB ASSY from th B ASSY from the Pin of t e Pin of the Frame he Frame L L unit.
  • Page 93 9.36 9.36 Registr Registration front/ ation front/rear actuator holde rear actuator holder ASSY r ASSY Note: Note: • • As the Und As the Under bar is eas er bar is easy to bend, b y to bend, be careful t e careful to handle it o handle it.
  • Page 94 (4) Release th Release the Registrat e Registration front/ ion front/rear senso rear sensor harness and the L r harness and the LVPS harness from th VPS harness from the securing e securing fixtures. fixtures. (5) Remov Remove the T e the Taptite cup S M3x aptite cup S M3x6 SR screw and the two T 6 SR screw and the two Taptite bi...
  • Page 95 (6) Remov Remove the T e the Taptite bi aptite bind B M3x10 screw nd B M3x10 screw. Release eac . Release each Hook, and remov h Hook, and remove the Regist e the Registration ration front/rear actuator holder ASSY from the Registration chute. Pull out the Registration front/ front/rear actuator holder ASSY from the Registration chute.
  • Page 96 9.37 Paper feed roller ASSY / Paper feed sensor PCB ASSY Paper feed roller ASSY / Paper feed sensor PCB ASSY 9.37 (1) Relea Release each Ho se each Hook of the Paper f ok of the Paper feed sens eed sensor cover to re or cover to remove the Pa move the Paper feed sen...
  • Page 97 CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT 1. IF YOU REPLACE THE MAIN PCB ASSY What to do after replacement • Installing Firmware (Sub firmware and main firmware) • Initializing the EEPROM of the Main PCB ASSY (Function code 01) •...
  • Page 98 1.1 Installing Firmware (Sub firmware and main firmware) 1.1.1 Checking firmware version Check whether the firmware installed on the machine is the latest version. If it is the latest version, there is no need to install the firmware. If it is not, be sure to install the firmware to the machine as described in “1.1.2 Installing firmware”.
  • Page 99 “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 100 1.3 Setting by Spec, Setting Serial Number and Entering Adjusted Value of Laser Unit <Operating Procedure> (1) Follow the procedure below to enter the maintenance mode. Non-touch panel models Touch panel models 1) Press the [Menu] and then the [Start] 1) Press and hold the for approximately while the machine is in the ready...
  • Page 101 (9) Click the [OK] shown as (J). The Execute Setting screen shown on the right appears and the laser adjusted value is written to the machine. (10) Click the [OK] shown as (L) and close the Execute Setting screen. (11) Click the [Cancel] shown as (K) and close the Input information screen.
  • Page 102 4. IF YOU REPLACE THE PANEL UNIT OR PANEL CONTROL PCB What to do after replacement •  Adjusting Touch Panel (Function code 61) (Touch panel models only) • Checking LCD Operation (Function code 12) What you need to prepare (Touch panel models only) (1) Touch pen 4.1 Adjusting Touch Panel (Function code 61) (Touch panel models only)
  • Page 103 5. IF YOU REPLACE THE ADF UNIT, FIRST SIDE CIS UNIT, SECOND SIDE CIS UNIT OR DOCUMENT SCANNER UNIT What to do after replacement •  Acquiring White Level Data (Function code 55) • Scanning and Printing Check 5.1 Acquiring White Level Data (Function code 55)  Acquire white level data as described in “1.3.16 Acquire white level data and set CIS scan area (Function code 55)”...
  • Page 104 CHAPTER 5 SERVICE FUNCTIONS 1. FUNCTION CODE Maintenance mode is exclusively designed for checking, setting and adjusting the machine using the keys on the control panel. Using maintenance mode functions, you can conduct operational checks of sensors or test printing, display the log information or error codes, and change the worker switches (WSW) etc.
  • Page 105 1.3.13 Adjust printable range for each speed level (Function code 46) <Function> This function is to adjust the printing position in horizontal / vertical direction. Position can be adjusted in 11 steps from -0.5% to 0.5% (Printing width gets smaller when the value is negative).
  • Page 106  Print adjustment test pattern Fig. 5-11...
  • Page 107 1.3.14 Transfer received fax data / log information (fax models only) (Function code 53) <Function> When the machine is unable to print the received fax data due to an error in the printing mechanism, this function is used to transfer the data to another machine. The communication management report, communication list, or machine log information can also be transferred.
  • Page 108  Cover page example Job number to identify the transmission Total number of pages to be transferred Station ID registered in the sender machine Fax number of the sender machine Telephone number of the sender machine Transfer date and time Model code Boot ROM information ROM information...
  • Page 109 1.3.15 Fine-tune scanning position (Function code 54) <Function> This function is used to adjust the scanning start/end positions. <Operating Procedure> • For models with ADF and keypad Press the [5], and then the [4] in the initial state of maintenance mode. “SCAN START  ADJ”...
  • Page 110 <Print specification> Description SELECT: PLAIN Plain paper   SELECT: THICK Plain paper (thick) SELECT: THIN Plain paper (thin) SELECT:THICKER Plain paper (thicker) SELECT:RECYCLED Recycled paper  SELECT:BOND Bond paper   SELECT:LABEL Label SELECT:ENVELOPE Envelope SELECT:ENVTHIN Envelope (thin) SELECT:ENVTHICK Envelope (thick) SELECT:HAGAKI Postcard <Print type>...
  • Page 111  Test pattern Fig. 5-19...
  • Page 112 If there is no entry for one minute or longer, the machine returns to the initial state of maintenance mode automatically, regardless of the display status.  Setting by spec code list MODEL Country Code Country Code (Detail) DCP-7090 China 0020 DCP-7095D China 0120 DCP-7190DN...
  • Page 113 MODEL Country Code Country Code (Detail) DCP-L2510D France/Belgium/ 1055 Belgium 1008 Netherlands France 7004 Netherlands 9004 Germany 0053 Austria 0014 Iberia 1004 Portugal 1004 Spain 1004 Italy 1004 Pan-Nordic 1004 Denmark 1004 Finland 1004 Norway 1004 Sweden 1004 Others 1004 1004 DCP-L2510DR Russia...
  • Page 115 CHAPTER 7 PERIODICAL MAINTENANCE 1. PERIODICAL REPLACEMENT PARTS There are no parts to be replaced periodically.
  • Page 116 APPENDIX 1 SERIAL NUMBERING SYSTEM  Serial number labels on the printer  Serial number   A 7 N 1 1 1 1 0 1 Model number  Serial number (6-digit) Manufacturing factory No. Year of manufacture * : 201* (e.g., 7 : 2017) Month of manufacture  A: January E: May...
  • Page 117 APPENDIX 2 DELETING USER SETTING INFORMATION The user setting information for the machine is stored in the main PCB. You can return this to the default settings by following the procedure below. <Operating Procedure> For models without touch panel For models with touch panel (1) Press the [Menu] while the machine is (1) Press the [Settings] while the...
  • Page 118 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 119 The following screen is displayed during installation. (4) Wait for the following screen to appear and click [Finish]. (5) Plug the AC cord of the machine into an electrical outlet. (6) Enter the maintenance mode. (Refer to “1.1 How to Enter Maintenance Mode” in Chapter 5.) (7) Connect the machine to your computer using a USB cable and the installation will be performed automatically.

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