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Brother International MFC 8890DW Service Manual - Page 16

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2.2 Functions Model DCP DCP MFC MFC MFC 8080DN 8085DN 8480DN 8880DN 8890DW CPU 300 MHz Back up Clock Yes (up to 60 hours) Memory Standard 64 MB Option 1 DIMM slot; expandable up to 576 MB Interface Emulation IEEE 1284 Parallel, Hi-Speed USB 2.0, Ethernet 10/100 BASE-TX, USB Host IEEE 1284 Parallel, IEEE 1284 Hi-Speed USB 2.0, Parallel, Ethernet 10/100 Hi-Speed BASE-TX, USB Host, USB 2.0, External TAD Ethernet 10/100 BASE-TX, External TAD, Wireless LAN IEEE 802.11b/g PCL6, BR-Script 3 (PostScript® 3™), IBM Proprinter XL, Epson FX-850 Network Connectivity Protocol TCP/IP(10/100 BASE-TX Ethernet) Management tool BRAdmin Light, Web BRAdmin, Web Based Management , BRAdmin Professional 3 Resident fonts PCL 66 scalable fonts, 12 bitmap fonts, 13 bar codes BR-Script 3 66 scalable fonts (PostScript® 3™) Model Printer driver Windows® DCP DCP MFC MFC MFC 8080DN 8085DN 8480DN 8880DN 8890DW PCL driver for Windows 2000 Professional, XP Home Edition, XP Professional Edition, XP professional x64 Edition, Server 2003, Server 2003 x64 Edition, Vista, Server 2008 BR-Script 3 (PPD file for Windows 2000 Professional, XP Home Edition, XP Professional Edition, XP professional x64 Edition, Server 2003, Server 2003 x64 Edition, Vista, Server 2008) Macintosh® Macintosh Printer Driver for Mac OS® X 10.3.9 or greater BR-Script 3 (PPD file for Mac OS® X 10.3.9 or greater) Linux Linux printer driver for CUPS printing system (x86, x64 environment) Linux printer driver for LPD/LPRng printing system (x86, x64 environment) Utility N/A Driver Deployment Wizard Download from http://solutions.brother.com. 1-3 Confidential

Section	Page
DCP-8080DN/8085DN, MFC-8480DN/8880DN/8890DW SERVICE MANUAL	1
CHAPTER 1 SPECIFICATIONS	13
1. COMPONENTS	14
2. SPECIFICATIONS LIST	15
2.1 Printing	15
2.2 Functions	16
2.3 Electronics and Mechanics	18
2.4 Network Connectivity	19
2.5 Service Information	21
2.6 Paper	22
2.6.1 Paper handling	22
2.6.2 Media specifications	23
2.6.3 Type and size of paper	23
2.7 Printable Area	25
2.8 Print Speeds with Various Settings	31
2.9 Telephone	32
2.10 Fax	33
2.11 List/Report	34
2.12 Copy	35
2.13 Scanner	35
2.14 USB Host	36
CHAPTER 2 THEORY OF OPERATION	38
1. MECHANICS	39
2. ELECTRONICS	40
2.1 General Block Diagram	40
3. MECHANICS	41
3.1 Cross-section Drawing	41
3.2 Scanner Mechanism	43
3.2.1 Scanner unit	44
3.2.2 ADF unit	46
3.3 Paper Feeding	51
3.3.1 Plate-up Function of the Paper Tray	52
3.3.2 Paper supply	53
3.3.3 Paper registration	54
3.3.4 Paper eject	55
3.3.5 Duplex printing	56
3.3.6 Paper feeding from the MP tray	57
3.3.7 Paper feeding from the LT tray (Tray2)	57
3.4 Toner Cartridge	58
3.4.1 Methods for Detecting Toner Life	58
3.4.2 Cartridge life	59
3.4.3 New toner detection	60
3.5 Print	63
3.5.1 Basic Principle	63
3.5.2 Print Process	64
3.6 Sensors position	69
CHAPTER 3 PERIODIC MAINTENANCE	72
1. INTRODUCTION	73
1.1 Precautions	73
1.2 Part names	74
1.3 Initial Check	75
2. DISTINGUISH ERROR CAUSE	77
2.1 ERROR INDICATION	77
2.1.1 Error messages appearing on the LCD	77
3. ERROR CODES	81
3.1 Error Indication	81
3.2 Error Code Cause and Remedy	84
4. PAPER FEEDING PROBLEMS	112
4.1 No Feeding	112
4.2 Double Feeding	112
4.3 Paper Jam	113
4.4 Dirt on Paper	115
4.5 Wrinkles or creases	115
4.6 Waves in the paper / folds in the paper at the eject roller 2	115
4.7 Curl in the paper	116
4.8 Prints only single side of the paper when duplex-printing	116
5. IMAGE DEFECT TROUBLESHOOTING	117
5.1 Image Defect Examples	117
5.2 Diameter of Rollers	117
5.3 Troubleshooting Image Defect	118
6. SOFTWARE SETTING PROBLEMS	132
7. NETWORK PROBLEMS	133
8. TROUBLESHOOTING OF THE COMMUNICATIONS ERRORS	134
9. TROUBLESHOOTING OF THE CONTROL PANEL	139
10. TROUBLESHOOTING OF FAX FUNCTIONS	141
11. DOCUMENT FEEDING PROBLEMS	145
11.1 No Feeding	145
11.2 Double Feeding	146
11.3 Paper Jam	146
11.4 Wrinkles	148
12. SCANNING IMAGE DEFECT TROUBLESHOOTING	149
12.1 Image Defect Examples	149
12.2 Troubleshooting Image Defect	149
13. OTHERS PROBLEMS	152
CHAPTER 4 PERIODIC MAINTENANCE	155
1. PERIODIC MAINTENANCE PARTS	156
1.1 Periodical Replacement Parts	157
1.2 Procedures to Replace Periodical Replacement Parts	158
1.2.1 Fuser unit and laser unit	158
1.2.2 Paper feeding kit for tray 1, 2	185
1.2.3 Paper feeding kit for MP tray	191
CHAPTER 5 PERIODIC MAINTENANCE	197
1. SAFETY PRECAUTIONS	201
2. TRANSFERRING RECEIVED FAX DATA	202
3. PACKING	204
4. SCREW TORQUE LIST	205
5. LUBRICATION	208
6. GEAR LAYOUT DRAWING	210
7. HARNESS ROUTING	211
8. DISASSEMBLY FLOW CHART	229
9. DISASSEMBLY PROCEDURE	230
9.1 Paper Tray	231
9.2 Back Cover	234
9.3 Rear Chute ASSY	236
9.4 Fuser Unit	238
9.5 Tray MP ASSY	242
9.6 MP Tray Cover ASSY/Process Cover ASSY/Emblem cover	243
9.7 Access Cover/Side Cover L	246
9.8 ADF Unit	247
9.9 Hinge Arm R	248
9.10 Hinge Base R	249
9.11 Hinge ASSY L	249
9.12 ADF Cover ASSY	250
9.13 ADF Side Cover F	250
9.14 ADF Side Cover R	251
9.15 ADF Chute ASSY	252
9.16 SB Chute ASSY (For the models with the DX only) / SX Chute (For the models with out the DX o...	254
9.17 Exit Chute Cover ASSY	254
9.18 Earth Spring	255
9.19 PF Roller Holder ASSY	256
9.20 LF Roller 1 ASSY	257
9.21 SB Roller ASSY (For the models with the Reading DX only)	258
9.22 ADF Motor	260
9.23 S/B Solenoid ASSY (For the models with the DX only)	261
9.24 PF Solenoid ASSY (For the models with the DX only)	261
9.25 ADF Relay PCB	262
9.26 Paper Feed Chute ASSY	263
9.27 Actuator Front 1/Photo Interrupter (For the models with the DX only)	264
9.28 Actuator Front 2/Photo Interrupter (For the models with the DX only)	265
9.29 ADF Film/Spring Plate ADF Front A ASSY/Separation Rubber/Rubber Holder/Separation Spring	266
9.30 Presser Roller/LF Spring	267
9.31 LF Roller 2 ASSY	268
9.32 Exit Roller ASSY	269
9.33 LF Roller 3 ASSY	270
9.34 LF Roller 4 ASSY	271
9.35 Flap A ASSY (For the models with the DX only)/ Flap A (For the models with out the DX only)	272
9.36 Document Hold/Document Hold Spring	273
9.37 Upper Main Chute ASSY/Lower Main Chute ASSY	273
9.38 Actuator R/Photo Interrupter	275
9.39 Flap B	276
9.40 Actuator SB/Photo Interrupter (For the models with the DX only)	276
9.41 Document Ejection Tray	277
9.42 Document Cover Sensor	278
9.43 Eject Roller B4	279
9.44 Presser Roller	280
9.45 Panel Cover ASSY	281
9.46 Scanner Unit ASSY	282
9.47 Top Cover ASSY	283
9.48 Lock Lever B/ Lock Lever ASSY	284
9.49 CCD Module	284
9.50 FFC Cable ASSY	286
9.51 Scanner Motor FB	287
9.52 Pulley ASSY	288
9.53 Photo Interrupter	288
9.54 Panel Unit	289
9.55 Panel PCB ASSY	290
9.56 Printed Rubber Key	292
9.57 LCD Cover/Backlight Module/LCD	293
9.58 NCU PCB ASSY (For the models with the NCU only)	294
9.59 Speaker ASSY	296
9.60 Driver PCB	297
9.61 USB HOST PCB ASSY	298
9.62 Side Cover R	300
9.63 Joint Cover ASSY	301
9.64 Main PCB	303
9.65 Gear Plate Calking ASSY/Develop Joint/Main Motor ASSY	305
9.66 Main Shield Plate ASSY	307
9.67 Relay Rear PCB ASSY/Connector	310
9.68 Relay Front PCB ASSY	312
9.69 Drive Release Link	313
9.70 MP Solenoid ASSY	314
9.71 T1 Solenoid ASSY	315
9.72 Toner Sensor PCB	316
9.73 Register Solenoid ASSY	317
9.74 Ejector Solenoid ASSY	317
9.75 Interlock SW ASSY	318
9.76 New Toner Actuator	318
9.77 Gear 17/20/23	319
9.78 Thermistor ASSY	321
9.79 Filter	322
9.80 Laser Unit	323
9.81 PS PCB Unit	324
9.82 High-Voltage PS PCB ASSY	328
9.83 Wireless PCB (PCB T60H989 ASSY 04) (Wireless LAN model)	330
9.84 Toner LED PCB Unit ASSY	331
9.85 Fan Motor 60 Unit	332
9.86 Fan Motor 60 Unit LV	333
9.87 FRAME L ASSY	334
9.88 MP Unit	337
9.89 Regist Actuator Rear/Regist Actuator Spring	343
9.90 Regist Actuator Front/Regist Actuator Spring	345
9.91 Roller Holder ASSY	346
9.92 PE Actuator/Edge Actuator/Edge Actuator Spring	347
9.93 PE EG Sensor ASSY	349
10. DISASSEMBLY PROCEDURE (LT-5300)	351
10.1 Paper Tray	351
10.2 LT Front Cover ASSY	354
10.3 LT Rear Cover	355
10.4 LT Side Cover L	356
10.5 LT Side Cover R	357
10.6 LT PCB ASSY	358
10.7 Connector: 55533-1219	359
10.8 Connector: 54702-1219	359
10.9 Gear 24 LT	360
10.10 Collar 6	361
10.11 LT Solenoid ASSY	365
10.12 Roller Holder ASSY	365
10.13 Edge Actuator Spring	366
10.14 PE Actuator , Edge Actuator	367
10.15 LT Sensor PCB ASSY	368
CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT	371
1. IF YOU REPLACE THE MAIN PCB	372
2. IF YOU REPLACE THE WIRELESS LAN PCB	383
3. IF YOU REPLACE THE WIRELESS LAN PCB	384
CHAPTER 7 SERVICE MODE	386
1. ENTRY INTO THE MAINTENANCE MODE	388
2. LIST OF MAINTENANCE-MODE FUNCTIONS	389
3. USER-ACCESS TO THE MAINTENANCE MODE	390
4. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS	391
4.1 EEPROM Parameter Initialization (Function code 01/91)	391
4.2 Printout of Scanning Compensation Data (Function code 05)	392
4.3 Placement of FB Unit in Position for Transportation (Function code 06)	395
4.4 ADF Performance Test (Function code 08)	395
4.5 Test Pattern 1 (Function code 09)	396
4.6 Firmware Switch Setting and Printout	397
4.6.1 Firmware switch setting (Function code 10)	397
4.6.2 Printout of firmware switch data (Function code 11)	400
4.7 Operation Check of LCD (Function code 12)	401
4.8 Operational Check of Control Panel PCB (Function code 13)	402
4.9 ROM Version Check (Function code 25)	403
4.10 Sensor Operational Check (Function code 32)	404
4.11 PC Print Function (Function code 43)	406
4.12 Switching the USB Setting (Function code 45)	409
4.13 Pan-nordic Select Country (Function code 52)	410
4.14 Received Data Transfer Function (Function code 53) (only model with FAX)	411
4.15 Fine Adjustment of Scan Start/End Positions (Function code 54)	413
4.16 Acquisition of White Level Data and CCD Scanner Area Setting (Function code 55)	415
4.17 Paper Feeding and Ejecting Test (Function code 67)	416
4.18 EEPROM Customizing (Function code 74)	416
4.19 Operational Check of Fans (Function code 78)	418
4.20 Display of the Machine’s Log Information (Function code 80)	419
4.21 Error Code Indication (Function code 82)	421
4.22 Output of Transmission Log to the Telephone Line (Function code 87)	421
4.23 Counter Reset After Replacing the Fuser Unit,Laser Unit and Paper Feed Kit (Function code 88)	422
4.24 Maintenance Mode Finish (Function code 99)	422
5. OTHER SERVICE FUNCTIONS	423
5.1 Resetting the Periodical Replacement Parts Life	423
5.2 Develop Roller / Developing Bias Voltage Counter Reset Function	425
5.3 Drum condensation countermeasure mode	426
5.4 Unlocking and Clearing the Password of the Function Lock / Setting Lock	426
5.5 Clearing the Data of the Secure Print	426
CHAPTER 8 CIRCUIT DIAGRAMS, WIRING DIAGRAM	428
1. CIRCUIT DIAGRAMS	429
2. WIRING DIAGRAM	433
APPENDIX1 FIRMWARE SWITCHES (WSW)	435
APPENDIX2 DELETION OF USER SETTING INFORMATION, etc.	510
APPENDIX3 SERIAL NUMBERING SYSTEM	512
APPENDIX4 SCREW CATALOGUE	514
APPENDIX5 REFERENCES	516

Match case Limit results 1 per page

1-3

Confidential

2.2

Functions

Download from

http://solutions.brother.com

Model

DCP

8080DN

DCP

8085DN

MFC

8480DN

MFC

8880DN

MFC

8890DW

CPU

300 MHz

Back up Clock

Yes (up to 60 hours)

Memory

Standard

64 MB

Option

1 DIMM slot; expandable up to 576 MB

Interface

IEEE 1284 Parallel,

Hi-Speed USB 2.0,

Ethernet 10/100

BASE-TX, USB Host

IEEE 1284 Parallel,

Hi-Speed USB 2.0,

Ethernet 10/100

BASE-TX, USB Host,

External TAD

IEEE 1284

Parallel,

Hi-Speed

USB 2.0,

Ethernet

10/100

BASE-TX,

External

TAD,

Wireless

LAN IEEE

802.11b/g

Emulation

PCL6, BR-Script 3 (PostScript

3™), IBM Proprinter XL,

Epson FX-850

Network

Connectivity

Protocol

TCP/IP(10/100 BASE-TX Ethernet)

Management tool

BRAdmin Light, Web BRAdmin, Web Based

Management , BRAdmin Professional 3

Resident fonts

PCL

66 scalable fonts, 12 bitmap fonts, 13 bar codes

BR-Script 3

(PostScript

3™)

66 scalable fonts

Model

DCP

8080DN

DCP

8085DN

MFC

8480DN

MFC

8880DN

MFC

8890DW

Printer driver

Windows

PCL driver for Windows 2000 Professional,

XP Home

Edition, XP Professional Edition,

XP professional x64

Edition,

Server 2003, Server 2003 x64 Edition, Vista,

Server 2008

BR-Script 3 (PPD file for Windows 2000 Professional,

Home Edition, XP Professional Edition,

XP professional

x64 Edition,

Server 2003, Server 2003 x64 Edition, Vista,

Server 2008)

Macintosh

Macintosh Printer Driver for Mac OS

X 10.3.9 or greater

BR-Script 3 (PPD file for Mac OS

X 10.3.9 or greater)

Linux

Linux printer driver for CUPS printing system (x86, x64

environment)

Linux printer driver for LPD/LPRng printing system (x86,

x64 environment)

Utility

N/A

Driver Deployment Wizard