Brother Inkjet-MFC J6520DW J6720DW J6920DW J6925DW Service Manual
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TABLE OF CONTENTS
REGULATION ........................................................................................................................ ix
SAFETY INFORMATION ..................................................................................................... xiv
CHAPTER 1 SPECIFICATIONS......................................................................................... 1-1
1 GENERAL ...................................................................................................................... 1-1
1.1 General.................................................................................................................. 1-1
1.2 Media Specification ............................................................................................... 1-1
1.3 Paper Handling...................................................................................................... 1-2
1.4 LCD Panel ............................................................................................................. 1-2
1.5 Memory.................................................................................................................. 1-2
1.6 Interface................................................................................................................. 1-2
1.7 Others.................................................................................................................... 1-3
2 FAX................................................................................................................................. 1-4
3 PRINTER ........................................................................................................................ 1-4
4 COPY.............................................................................................................................. 1-4
5 SCANNER ...................................................................................................................... 1-5
6 SOFTWARE ................................................................................................................... 1-5
7 NETWORK ..................................................................................................................... 1-5
7.1 Network ................................................................................................................. 1-5
7.2 Wired ..................................................................................................................... 1-5
7.3 Wireless................................................................................................................. 1-5
8 SUPPRIES/OPTIONS .................................................................................................... 1-6
9 SERVICE INFORMATION.............................................................................................. 1-6
10 PAPER ........................................................................................................................... 1-7
10.1 Paper..................................................................................................................... 1-7
10.2 Printable Area...................................................................................................... 1-10
CHAPTER 2 TROUBLESHOOTING................................................................................... 2-1
1 INTRODUCTION ............................................................................................................ 2-1
1.1 See "Precautions for Troubleshooting and/or Disassembly/Assembly"
at the end of SAFETY INFORMATION ................................................................. 2-1
1.2 Initial Check........................................................................................................... 2-1
2 OVERVIEW .................................................................................................................... 2-3
2.1 Cross-section Drawings......................................................................................... 2-3
2.1.1 Document scanning ...................................................................................... 2-3
2.1.2 Printer part .................................................................................................... 2-4
2.2 Document Feeding Path/Recording Paper Feeding Path ..................................... 2-5
2.2.1 Document Feeding Path ............................................................................... 2-5
2.2.2 Recording Paper Feeding Path..................................................................... 2-5
2.3 Parts Names and Functions .................................................................................. 2-6
2.4 Block Diagram ....................................................................................................... 2-8
2.5 Components .......................................................................................................... 2-9
3 ERROR INDICATION................................................................................................... 2-10
3.1 Error Code........................................................................................................... 2-10
3.2 Error Messages .................................................................................................. 2-15
3.3 Communications Error ........................................................................................ 2-17
4 TROUBLESHOOTING ................................................................................................. 2-21
4.1 Error Cause and Solutions .................................................................................. 2-21
4.2 Recording Paper Feeding Problems ................................................................... 2-54
4.2.1 Paper is not fed from paper tray.................................................................. 2-54
4.2.2 Paper is not fed from manual feed slot ....................................................... 2-55
4.2.3 Two or more sheets of paper fed at a time ................................................. 2-56
4.2.4 Paper feeding at an angle........................................................................... 2-56
4.2.5 Recording paper jam................................................................................... 2-57
4.2.6 Prints only single side of the paper when duplex-printing........................... 2-60
4.3 Print-image Problems.......................................................................................... 2-61
4.3.1 Defective images......................................................................................... 2-61
4.3.2 Print-image problems.................................................................................. 2-62
4.4 Software-related Problems.................................................................................. 2-72
4.4.1 Cannot print data......................................................................................... 2-72
4.5 Network Problems ............................................................................................... 2-72
4.5.1 Cannot make a print through network connection....................................... 2-72
4.6 Control Panel Problems....................................................................................... 2-73
4.6.1 No display on LCD ...................................................................................... 2-73
4.6.2 No display on LED ...................................................................................... 2-73
4.6.3 The control panel does not work................................................................. 2-73
4.6.4 Touch panel inoperative.............................................................................. 2-73
4.7 Document Feeding Problems.............................................................................. 2-74
4.7.1 Document can not be fed............................................................................ 2-74
4.7.2 Document double feeding ........................................................................... 2-74
4.7.3 Document jam............................................................................................. 2-75
4.7.4 Wrinkles on documents............................................................................... 2-77
4.7.5 Document size not correctly detected......................................................... 2-77
4.8 Scanned-image Problems ................................................................................... 2-78
4.8.1 Defective images......................................................................................... 2-78
4.8.2 Troubleshooting from image defect............................................................. 2-78
4.9 Fax Problems ...................................................................................................... 2-83
4.9.1 No faxes can be sent .................................................................................. 2-83
4.9.2 No faxes can be received............................................................................ 2-83
4.9.3 A communications error occurs................................................................... 2-84
4.10 Other Problems ................................................................................................... 2-85
4.10.1 The machine cannot be powered ON ......................................................... 2-85
4.10.2 Memory card/PictBridge does not function (no response) .......................... 2-85
4.10.3 Data of memory card/PictBridge does not read .......................................... 2-85
4.10.4 Internal memory errors................................................................................ 2-86
4.10.5 Security Function Lock related problems.................................................... 2-86
4.10.6 Ink cartridge related problems..................................................................... 2-86
4.10.7 Loud printing sound..................................................................................... 2-86
CHAPTER 3 DISASSEMBLY AND ASSEMBLY ............................................................... 3-1
1 PRECAUTIONS BEFORE PROCEEDING .................................................................... 3-1
2 PACKING .......................................................................................................................3-3
3 SCREW CATALOGUE................................................................................................... 3-4
4 SCREW TORQUE LIST ................................................................................................. 3-5
5 LUBRICATION ............................................................................................................... 3-6
6 OVERVIEW OF GEARS............................................................................................... 3-11
7 ROUTING OF HARNESSES AND INK SUPPLY TUBES ........................................... 3-12
8 DISASSEMBLY FLOW ................................................................................................ 3-20
9 DISASSEMBLY PROCEDURE.................................................................................... 3-22
9.1 Preparation.......................................................................................................... 3-22
9.2 Head Joint Rubber, Head/carriage Unit and CR Timing Belt .............................. 3-27
9.3 Ink Absorber Box................................................................................................. 3-41
9.4 FB Hinge.............................................................................................................. 3-42
9.5 Manual Feed Slot Cover ASSY ........................................................................... 3-45
9.6 Document Scanner Side Cover L........................................................................ 3-46
9.7 Document Scanner Side Cover R ....................................................................... 3-47
9.8 ADF Unit, Document Scanner Unit and ADF Hinge ............................................ 3-48
9.9 ADF Document Support ...................................................................................... 3-52
9.10 ADF Cover ASSY and ADF Cover Side Cover.................................................... 3-53
9.11 ADF Front Cover ................................................................................................. 3-54
9.12 ADF Side Cover L................................................................................................ 3-54
9.13 ADF Side Cover R............................................................................................... 3-55
9.14 ADF Back Cover.................................................................................................. 3-55
9.15 Document Separation Roller ASSY..................................................................... 3-56
9.16 ADF Separation Pad............................................................................................ 3-58
9.17 Second Side CIS Unit.......................................................................................... 3-59
9.18 Second Side CIS Flat Cable................................................................................ 3-61
9.19 First Side Document Scanning Position Sensor PCB and
Second Side Document Scanning Position Sensor PCB
(Duplex Scanning Models Only).......................................................................... 3-66
9.20 Document Detection Sensor/Document Width Sensor PCB ............................... 3-67
9.21 First Side CIS Unit............................................................................................... 3-68
9.22 First Side CIS Flat Cable and FFC Film .............................................................. 3-70
9.23 Front Cover L....................................................................................................... 3-73
9.24 Inner Media Cover............................................................................................... 3-74
9.25 Panel ASSY......................................................................................................... 3-76
9.26 LCD PCB ASSY .................................................................................................. 3-78
9.27 LCD ..................................................................................................................... 3-80
9.28 Touch Panel ASSY.............................................................................................. 3-80
9.29 NFC PCB............................................................................................................. 3-81
9.30 Ink Cartridge Cover ............................................................................................. 3-81
9.31 Lower Side Cover L............................................................................................. 3-82
9.32 Lower Side Cover R ............................................................................................ 3-82
9.33 Upper Side Cover L............................................................................................. 3-83
9.34 Upper Side Cover R ............................................................................................ 3-83
9.35 Side Cover L and Side Cover R .......................................................................... 3-84
9.36 Upper Cover ........................................................................................................ 3-85
9.37 Wireless LAN PCB ASSY.................................................................................... 3-86
9.38 Document Scanner Sensor PCB......................................................................... 3-87
9.39 Main PCB ASSY.................................................................................................. 3-89
9.40 MJ PCB ASSY..................................................................................................... 3-91
9.41 Jam Clear Cover.................................................................................................. 3-92
9.42 T1 Bank ASSY..................................................................................................... 3-94
9.43 Power Supply PCB ASSY ................................................................................... 3-95
9.44 Carriage PCB ASSY............................................................................................ 3-98
9.45 Ink Refill ASSY .................................................................................................. 3-100
9.46 Ink Absorber Felt (for Ink Refill ASSY) .............................................................. 3-100
9.47 Ink Cartridge Cover Sensor ASSY .................................................................... 3-101
9.48 CR Encoder Strip............................................................................................... 3-102
9.49 Encoder Strip Guard Film.................................................................................. 3-103
9.50 Switchback Sensor PCB.................................................................................... 3-104
9.51 Carriage Motor ASSY........................................................................................ 3-105
9.52 Flushing Base.................................................................................................... 3-108
9.53 Flushing Box...................................................................................................... 3-109
9.54 Platen Foam and Switchback Roller.................................................................. 3-110
9.55 PF Encoder Disk and PF Encoder Sensor PCB ASSY ..................................... 3-112
9.56 Paper Feed Motor.............................................................................................. 3-114
9.57 Paper Feed Roller ............................................................................................. 3-116
9.58 Paper Ejection Roller and Platen....................................................................... 3-117
9.59 Maintenance Unit and Ink Absorber Felt (for Maintenance Unit)....................... 3-120
9.60 Inner Chute ASSY ............................................................................................. 3-121
9.61 Registration Sensor PCB ASSY........................................................................ 3-124
9.62 T1 Paper Pull-in Roller ...................................................................................... 3-125
9.63 T2 Bank ASSY................................................................................................... 3-127
9.64 T2 Paper Pull-in Roller ...................................................................................... 3-128
9.65 Base Pad........................................................................................................... 3-129
CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS,
REQUIRED AFTER PARTS REPLACEMENT.............................................. 4-1
1 IF YOU REPLACE THE MAIN PCB ASSY.................................................................... 4-1
1.1 Customize destinations (Maintenance mode 74) .................................................. 4-3
1.2 Set the CIS type (Maintenance mode 59) ............................................................. 4-3
1.3 Install the firmware (Maintenance mode 28) ......................................................... 4-3
1.4 Initialize the EEPROM parameters (Maintenance mode 01)................................. 4-5
1.5 Restore the head calibration data (Maintenance mode 68)................................... 4-5
1.6 Set the serial number (Maintenance mode 80) ..................................................... 4-5
1.7 Update the head property data (Maintenance mode 68)....................................... 4-8
1.8 Restore machine information (Maintenance mode 46).......................................... 4-8
1.9 Adjust the touch panel (Maintenance mode 78).................................................... 4-8
1.10 Acquisition of white/black level data (Maintenance mode 55)............................... 4-8
1.11 Adjustment of vertical print lines/software correction for inclination/
corrugation/ruled lines (Maintenance mode 65)4 .................................................. 4-8
1.12 Update the paper feeding correction values (Maintenance mode 58)................... 4-8
1.13 Adjust margins in borderless printing (Maintenance mode 66) ............................. 4-8
1.14 Reset purge and flushing counts........................................................................... 4-8
1.15 Write head calibration data (Maintenance mode 02)............................................. 4-9
1.16 Check scanning and printing ................................................................................. 4-9
2 IF YOU REPLACE THE HEAD/CARRIAGE UNIT....................................................... 4-11
2.1 Update the head property data (Maintenance mode 68)..................................... 4-12
2.2 Perform ink supply purge (Maintenance mode 76).............................................. 4-15
2.3 Check head nozzles (Maintenance mode 09) ..................................................... 4-15
2.4 Adjust head inclination......................................................................................... 4-15
2.5 Adjustment of vertical print lines/software correction for inclination/
corrugation/ruled lines (Maintenance mode 65) .................................................. 4-17
2.6 Update paper feeding correction values (Maintenance mode 58)....................... 4-17
2.7 Adjust margins in borderless printing (Maintenance mode 66) ........................... 4-17
2.8 Write head calibration data (Maintenance mode 02)........................................... 4-17
2.9 Check scanning and printing ............................................................................... 4-17
2.10 Obtain machine information at the user site (Instruction to the end user)........... 4-17
3 IF YOU REPLACE THE DOCUMENT SCANNER UNIT, ADF UNIT OR CIS UNIT.... 4-18
3.1 Set the CIS type (Maintenance mode 59) (Not required
after replacement of the ADF unit on simplex scanning models) ........................ 4-18
3.2 Acquisition of white/black level data (Maintenance mode 55) (Not required
after replacement of the ADF unit on simplex scanning models) ........................ 4-18
3.3 Check scanning................................................................................................... 4-18
4 IF YOU REPLACE THE CONTROL PANEL ASSY, TOUCH PANEL,
LCD UNIT OR LCD PCB ASSY................................................................................... 4-19
4.1 Adjust the touch panel (Maintenance mode 78)
(Not required after replacement of the LCD unit) ................................................ 4-19
4.2 Check LCD operation (Maintenance mode 12)
(Not required after replacement of the touch panel)............................................ 4-19
4.3 Check the operation of the control panel keys (Maintenance mode 13)
(Not required after replacement of the touch panel or LCD unit)......................... 4-19
5 IF YOU REPLACE THE INK ABSORBER BOX OR FLUSHING BOX ....................... 4-20
5.1 Reset purge and flushing counts......................................................................... 4-20
6 IF YOU REPLACE THE PAPER FEEDING RELATED PARTS and
MAINTENANCE UNIT.................................................................................................. 4-21
6.1 Check head nozzles (Maintenance mode 09) ..................................................... 4-22
6.2 Adjustment of vertical print lines/software correction for inclination/
corrugation/ruled lines (Maintenance mode 65) .................................................. 4-22
6.3 Update paper feeding correction values (Maintenance mode 58)....................... 4-22
6.4 Adjust margins in borderless printing (Maintenance mode 66) ........................... 4-22
6.5 Check printing...................................................................................................... 4-22
CHAPTER 5 SERVICE FUNCTIONS ................................................................................. 5-1
1 MAINTENANCE MODE ................................................................................................. 5-1
1.1 Entry to the Maintenance Mode............................................................................. 5-1
1.1.1 How to Enter the Maintenance Mode Exclusive to Service Personnel ......... 5-1
1.1.2 How to Enter the End User-accessible Maintenance Mode.......................... 5-3
1.2 List of Maintenance-mode Functions..................................................................... 5-4
1.3 Detailed Description of Maintenance-mode Functions.......................................... 5-5
1.3.1 EEPROM Parameter Initialization (Maintenance mode 01, 91) .................... 5-5
1.3.2 Creating of Head Calibration Data and Writing it into Flash ROM
(Maintenance mode 02) ................................................................................ 5-6
1.3.3 Printout of Scanning Compensation White/Black Level Data
(Maintenance mode 05) .............................................................................. 5-10
1.3.4 ADF Performance Test (Maintenance mode 08) ........................................ 5-12
1.3.5 Printout of Test Pattern (Maintenance mode 09) ........................................ 5-13
1.3.6 Worker Switch Setting and Printout (Maintenance modes 10 and 11)........ 5-14
1.3.7 Operational Check of LCD (Maintenance mode 12) ................................... 5-17
1.3.8 Operational Check of Keys on Control Panel (Maintenance mode 13)....... 5-19
1.3.9 EEPROM Dump Transfer and Log Information Saving
(Maintenance mode 17) .............................................................................. 5-20
1.3.10 Updating of Firmware Using an External Memory
(Maintenance mode 28) .............................................................................. 5-21
1.3.11 Sensor Operational Check (Maintenance mode 32)................................... 5-22
1.3.12 Printout of Dial Log (Maintenance mode 37)............................................... 5-24
1.3.13 Backup of Machine Information (Maintenance mode 46)............................ 5-25
1.3.14 Setting of Country/Language (Maintenance mode 52) ............................... 5-27
1.3.15 Transfer of Received FAX Data and/or Equipment's Log
(Maintenance mode 53) .............................................................................. 5-28
1.3.16 Fine Adjustment of Scanning Position (Maintenance mode 54) ................. 5-30
1.3.17 Acquisition of White/Black Level Data and CIS Scanner Area Setting
(Maintenance mode 55) .............................................................................. 5-31
1.3.18 Cartridge IC Communication Check (Maintenance mode 57)..................... 5-32
1.3.19 Updating of Paper Feeding Correction Values (Maintenance mode 58)..... 5-33
1.3.20 Checking of CIS Travel and Specifying of CIS Type
(Maintenance mode 59) .............................................................................. 5-38
1.3.21 Printout of PRN/JPEG Files in Memory Card (Maintenance mode 61)....... 5-39
1.3.22 Move of the Head/Carriage Unit to the Adjustment Position
(Maintenance mode 63) .............................................................................. 5-40
1.3.23 Adjustment of Vertical Print Lines/Software Correction for Inclination/
Corrugation/Ruled Lines (Maintenance mode 65) ...................................... 5-41
1.3.24 Margin Adjustment in Borderless Printing (Maintenance mode 66) ............ 5-43
Confidential1.3.25 Updating of Head Property Data and Backup/Restoration of
Head Calibration Data (Maintenance mode 68).......................................... 5-45
1.3.26 Traveling Speed Check of Head/Carriage Unit (Maintenance mode 69) .... 5-47
1.3.27 Customizing Destinations (Maintenance mode 74)..................................... 5-48
1.3.28 Move of the Head/Carriage Unit to the Center (Maintenance mode 75)..... 5-50
1.3.29 Purge Operation (Maintenance mode 76)................................................... 5-51
1.3.30 Print of the Maintenance Information (Maintenance mode 77) ................... 5-53
1.3.31 Adjustment of Touch Panel (Maintenance mode 78).................................. 5-56
1.3.32 Display of the Equipment's Log (Maintenance mode 80)............................ 5-57
1.3.33 Equipment Error Code Indication (Maintenance mode 82) ......................... 5-61
1.3.34 Output of Transmission Log to the Telephone Line
(Maintenance mode 87) .............................................................................. 5-61
1.3.35 Assurance Mode Switch Setting (Maintenance mode 88) .......................... 5-62
2 OTHER SERVICE FUNCTIONS .................................................................................. 5-72
2.1 Displaying the Firmware Version......................................................................... 5-72
2.2 Moving the Head/Carriage Unit ........................................................................... 5-72
2.3 Retrieving the Equipment Log Information .......................................................... 5-73
CHAPTER 6 CIRCUIT DIAGRAMS AND WIRING DIAGRAMS ........................................ 6-1
CHAPTER 7 PERIODICAL MAINTENANCE ..................................................................... 7-1
1 PERIODICAL REPLACEMENT PARTS ........................................................................ 7-1
APPENDIX 1 SERIAL NUMBERING SYSTEM.......................................................... App. 1-1
APPENDIX 2 DELETION OF USER SETTING INFORMATION................................ App. 2-1
A2.1 DELETING USER SETTING INFO FROM THE MACHINE............................... App. 2-1
APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER ..................... App. 3-1
| BRAND | EPSON |
|---|---|
| TYPES | Service_Manual |
| SIZE | 17.1M |
| PAGES | 361 |
| FORMAT | |
| LANGUAGE | English |
| QUALITY | High resolution |
| VERSION | 3 |
| DOCDATE | 2013-01-06 00:00:00 |
| APPLIESTO | Brother Inkjet-MFC J6520DW Brother Inkjet-MFC J6720DW Brother Inkjet-MFC J6920DW Brother Inkjet-MFC J6925DW |
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