Brother MFC8440D Manuals

Brother MFC8440D Manuals

Manuals and User Guides for Brother MFC8440D. We have 1 Brother MFC8440D manual available for free PDF download: Service Manual

Brother MFC8440D Service Manual

Brother MFC8440D Service Manual (361 pages)

Brand: Brother | Category: All in One Printer | Size: 26.74 MB

Table of Contents

Table of Contents

4
- Regulation
  10
- Safety Information
  12
- Chapter 1 General
  
  14
  - Overview
    14
  - Specifications
    16
  - General
    16
  - General (Continued)
    16
  - Print Media
    17
  - Copy
    17
  - Scanner
    19
  - Printer
    19
  - Interfaces
    20
  - Consumable Items
    20
  - Network (LAN) Board (NC-9100H)
    20
  - Computer Requirements
    21
  - Paper
    22
  - 2.12.1 Type and Size of Paper
    22
  - 2.12.2 Recommended Paper
    22
  - 2.12.3 Paper Capacity of the Paper Trays
    22
  - 2.12.4 Paper Specifications for each Paper Tray
    23
  - Printable Area
    24
  - 2.13.1 Pcl5E/Epson/Ibm Emulation
    24
  - 2.13.2 PCL6/BR-Script3 Emulation
    27
  - Print Speeds with Various Settings
    28
  - Toner Cartridge Weight Information
    28
  - Serial No. Descriptions
    29
- Chapter 2 Installation and Basic Operation
  
  31
- Chapter 3 Theory of Operation
  
  57
  - Electronics
    57
  - General Block Diagram
    57
  - Main PCB Block Diagram
    58
  - Main PCB
    59
  - Cpu
    59
  - Usb
    59
  - Ieee1284
    60
  - Rom
    60
  - Flash ROM
    61
  - Sdram
    61
  - Optional RAM
    62
  - Eeprom
    63
  - Reset Circuit
    63
  - 1.3.10 Engine I/O
    63
  - 1.3.11 Panel I/O
    63
  - 1.3.12 Video I/O
    64
  - 1.3.13 Scanner Control
    64
  - Power Supply
    66
  - Engine PCB
    66
  - Power Supply
    67
  - Low-Voltage Power Supply
    67
  - High-Voltage Power Supply
    68
  - Mechanics
    69
  - Overview of Printing Mechanism
    69
  - Scanner Mechanism
    70
  - Paper Transfer
    71
  - Paper Supply
    71
  - Paper Registration
    71
  - Paper Eject
    72
  - Duplex Printing
    72
  - Sensors
    73
  - Cover Sensors
    73
  - Toner Sensors
    73
  - Cassette Sensor / Paper Empty Sensor
    74
  - Paper Eject Sensor
    74
  - MP-PE Sensor
    75
  - Document Cover Sensor
    75
  - Document Front Sensor /Document Rear Sensor
    76
  - DX-Sensor PCB ASSY
    76
  - Rear Cover Sensor
    77
  - 2.4.10 HP Sensor
    77
  - Drum Unit
    78
  - Photosensitive Drum
    78
  - Primary Charger
    78
  - Transfer Roller
    78
  - Cleaner
    78
  - Toner Cartridge
    78
  - Print Process
    78
  - Charging
    78
  - Exposure Stage
    79
  - Developing
    80
  - Transfer
    80
  - Fixing Stage
    81
- Chapter 4 Disassembly and Re-Assembly
  
  82
  - Safety Precautions
    82
  - Disassembly Flow
    83
  - Disassembly Procedure
    84
  - AC Cord
    84
  - Drum Unit
    84
  - Paper Tray
    85
  - DX Feed ASSY (MFC-8840D/8840DN, DCP-8045D/8045DN Only)
    95
  - Access Cover / Battery
    98
  - Driver PCB Access Cover
    99
  - ADF Unit
    100
  - Document Scanner
    109
  - Panel Unit
    114
  - Rear Cover C (MFC-8440, DCP-8040 Only)
    117
  - Outer Chute (MFC-8440, DCP-8040 Only)
    118
  - Rear Cover MP ASSY / Outer Chute MP ASSY (MFC-8840D/8840DN, DCP-8045D/8045DN Only)
    119
  - Rear Cover L/R
    120
  - Side Cover L/R
    121
  - Joint Cover
    122
  - Front Cover ASSY (MFC-8440, DCP-8040 Only)
    126
  - MP Unit (MFC-8840D/8840DN, DCP-8045D/8045DN Only)
    127
  - Rear Cover Sensor
    132
  - NCU (MFC-8440/8840D/8840DN Only)
    133
  - Fixing Unit
    134
  - Laser Unit
    143
  - Main PCB
    145
  - Base Plate / LV Insulation Sheet
    147
  - DX-Sensor PCB ASSY (MFC-8840D/8840DN, DCP-8045D/8045DN Only)
    148
  - Engine PCB
    149
  - High-Voltage PS PCB ASSY
    150
  - Low-Voltage PS PCB ASSY
    151
  - Paper Feeder
    152
  - Frame L / Drive Unit
    159
  - Reversing Release Solenoid (MFC-8840D/8840DN, DCP-8045D/8045DN Only)
    163
  - Thermistor ASSY
    164
  - Fan Motor 60 Unit LV / Fan Motor 60 Unit
    164
  - Frame R
    165
  - Packing
    167
  - Guidelines for Lead Free Solder
    168
  - Screw Torque List
    171
  - Lubrication
    173
  - Harness Routing
    178
- Chapter 5 Periodic Maintenance
  
  180
  - Consumable Parts
    180
  - Drum Unit
    180
  - Toner Cartridge
    182
  - Periodical Replacement Parts
    186
  - Fixing Unit
    187
  - Paper Feeding Kit
    195
  - Periodical Cleaning
    199
  - Cleaning the Machine Exterior
    199
  - Cleaning the Scanner
    199
  - Cleaning the Printer
    200
  - Cleaning the Drum Unit
    201
  - Cleaning the Scanner Window
    201
  - Cleaning the Electrical Terminals
    202
  - Mtbf / Mttr
    203
- Chapter 6 Troubleshooting
  
  204
  - Introduction
    204
  - Initial Check
    204
  - Warnings for Maintenance Work
    205
  - Identify the Problem
    206
  - Error Message
    207
  - Error Message on the LCD
    207
  - Error Codes Shown in the "MACHINE ERROR X X" Message
    210
  - Paper Problems
    214
  - Paper Loading Problems
    214
  - Original Jams
    215
  - Original Is Jammed in the Top of the ADF Unit
    215
  - Original Is Jammed Inside the ADF Unit
    215
  - Paper Jams
    216
  - Clearing Jammed Paper
    216
  - Paper Is Jammed in the Duplex Tray (for MFC-8840D/8840DN, DCP-8045D/8045DN)
    219
  - Causes & Countermeasures
    220
  - Paper Feeding Problems
    221
  - Software Setting Problems
    223
  - Malfunctions
    226
  - Troubleshooting of the Control Panel
    231
  - Troubleshooting of Fax Functions
    233
  - Image Defects
    237
  - Image Defect Examples
    237
  - Diameter of Rollers
    237
  - Troubleshooting Image Defect
    238
  - Location of Grounding Contacts
    256
  - Drum Unit
    256
  - Machine Body & Paper Tray
    256
  - Incorrect Printout
    257
  - Network Problem
    259
  - Installation Problem
    259
  - Intermittent Problem
    260
  - TCP/IP Troubleshooting
    261
  - UNIX Troubleshooting
    261
  - Windows ® NT/LAN Server (TCP/IP) Troubleshooting
    262
  - Windows ® 95/98/Me Peer to Peer Print (LPR) Troubleshooting
    262
  - Windows 95/98/Me Peer to Peer (HP Jetadmin Compatible Method) Troubleshooting
    262
  - Brother Internet Print (TCP/IP) Troubleshooting
    263
  - Windows 95/98/Me/2000/Xp IPP Troubleshooting
    263
  - 10.11 Novell Netware Troubleshooting
    264
  - 10.12 Appletalk Troubleshooting
    265
  - 10.13 DLC/LLC Troubleshooting
    265
  - Web Browser Troubleshooting (TCP/IP)
    265
  - 10.15 Internet Fax Troubleshooting
    266
- Chapter 7 Maintenance Mode
  
  267
- Appendix 1 Eeprom Customizing Codes
  
  294
- Appendix 2 Installing the Update Data
  
  296
Appendix 3 Firmware Switchs (Wsw)

300
- Appendix 3 Firmware Switchs (Wsw
  
  301
  - WSW01 Dial Pulse Setting
    301
  - WSW 02 Tone Signal Setting
    302
  - WSW 03 PABX Mode Setting
    303
  - WSW 04 TRANSFER Facility Setting
    303
  - WSW 05 1St Dial Tone and Busy Tone Detection
    304
  - WSW06 Pause Button Setting and 2Nd Dial Tone Detection
    305
  - Wsw07
    307
  - Wsw08
    308
  - Wsw09
    309
  - Wsw10
    310
  - WSW11 Busy Tone Setting
    311
  - WSW 12 Signal Detection Condition Setting
    312
  - WSW13 Modem Setting
    313
  - WSW 14 AUTO ANS Facility Setting
    314
  - WSW 15 REDIAL Facility Setting
    315
  - Wsw16
    316
  - Wsw17
    317
  - Wsw18
    318
  - WSW 19 Transmission Speed Setting
    319
  - WSW 20 Overseas Communications Mode Setting
    320
  - Wsw21
    321
  - WSW22 ECM Setting
    321
  - WSW23 Communications Setting
    322
  - Wsw24
    323
  - Wsw25
    323
  - Wsw28
    326
  - Wsw29
    327
  - Wsw30
    327
  - Wsw31
    328
  - Wsw32
    329
  - Wsw33
    329
  - Wsw34
    330
  - Wsw35
    330
  - Wsw36
    331
  - Wsw37
    332
  - Wsw40
    335
  - Wsw41
    336
  - Wsw42
    337
  - Wsw43
    338
  - Speeding up Scanning-1
    339
  - Speeding up Scanning-2
    340
  - Wsw47
    341
  - Wsw48
    342
  - Wsw49
    342
  - Wsw50
    342
- Appendix 4 Circuit Diagrams
  
  343
  - Main PCB Circuit Diagram (2/7
    344
  - Main PCB Circuit Diagram (3/7
    345
  - Main PCB Circuit Diagram (4/7
    346
  - Main PCB Circuit Diagram (5/7
    347
  - Main PCB Circuit Diagram (6/7
    348
  - Main PCB Circuit Diagram (7/7
    349
  - Driver PCB Circuit Diagram
    350
  - Engine PCB Circuit Diagram (1/2
    351
  - Engine PCB Circuit Diagram (2/2
    352
  - NCU PCB Circuit Diagram (U.S.A
    353
  - NCU PCB Circuit Diagram (Europe
    354
  - Control Panel PCB Circuit Diagram
    357
  - Low-Voltage Power Supply PCB Circuit Diagram (200V
    358
  - High-Voltage Power Supply PCB Circuit Diagram (200V
    360

Advertisement

Advertisement

Related Products

Brother Categories

All in One Printer

All in One Printer

Printer

Printer Label Maker Fax Machine

More Brother Manuals