Brother MFC-9325CN Manuals

Manuals and User Guides for Brother MFC-9325CN. We have 1 Brother MFC-9325CN manual available for free PDF download: Service Manual

Brother MFC-9325CN Service Manual

Brother MFC-9325CN Service Manual (598 pages)

Color FAX/MFC

Brand: Brother | Category: All in One Printer | Size: 22.96 MB

Table of Contents

Chapter 1 Specifications

12
- Service Manual
  1
- CHAPTER 6 Required after Parts Replacement
  
  3
  - Safety Information
    7
- Table of Contents
  12
- Components
  13
- Specifications List
  14
  - General
    14
  - Configuration Tool
    19
  - Network Connectivity
    23
  - Wireless Network
    25
  - Service Information
    29
  - Consumables
    30
  - Paper
    31
    
    Media Specifications
    31
    
    Paper Handling
    31
    
    Type and Size of Paper
    32
  - Printable Area
    33
  - Print Speeds with Various Settings
    41
  - Telephone
    42
  - Fax
    44
  - List/Report
    48
  - Copy
    49
  - Scanner
    50
  - USB Direct Interface
    52
- CHAPTER 2 Theory of Operation
  
  53
Chapter 2 Theory of Operation

54
- General Block Diagram
  56
- Electronics General Block Diagram
  57
- Mechanics
  58
  - Cross-Section Drawing
    58
  - Printer Part
    58
  - Scanner Mechanism
    60
    
    Document Scanner Unit
    61
    
    ADF Unit
    63
  - Paper Feeding
    65
    
    Plate-Up Function of the Paper Tray
    66
    
    Paper Supply
    67
    
    Paper Registration
    68
    
    Paper Eject
    69
    
    Paper Supply from Manual Feed Slot and Paper Eject from Back
    70
  - Toner Cartridge
    71
    
    Life of Toner Cartridge
    71
    
    Type of Toner Cartridge
    71
    
    Method of Detecting Toner Life
    72
    
    Relationship between Toner Amount and Life of Toner Cartridge in Number of Rotations of Develop Roller
    72
    
    New Toner Detection
    74
    
    Method of Counting the Number of Toner Replacements
    76
  - Principle of Color Overlapping
    77
  - Basic Printing Principle
    78
    
    Charging
    79
    
    Exposure
    80
    
    Development
    81
    
    Transfer
    82
    
    Fusing
    83
    
    Toner Cleaning
    84
  - Adjustment of Color Density
    89
  - Adjustment of Color Registration
    89
    
    Color Registration Error in Sub/Main Scanning Direction
    89
Chapter 3 Error Indication and Troubleshooting

91
- Precautions
  93
- Components
  94
- Initial Check
  95
  - Operating Environment
    95
  - Power Supply
    95
- Error Indications
  97
  - Error Codes
    97
  - Error Messages
    100
  - Error Cause and Remedy
    103
    
    Error Code 25
    108
    
    Error Code 26
    108
    
    Error Code 29
    108
- Paper Feeding Problems
  149
  - No Feeding
    149
  - Double Feeding
    150
  - Paper Jam
    150
  - Dirt on Paper
    151
  - Wrinkles on Paper
    152
  - Curl of Paper
    152
- Print Image Defect from Pc/Usb/Fax Reception Troubleshooting
  153
  - Image Defect Examples
    153
  - Pitch Indicated in Roller Image
    154
  - Troubleshooting Image Defect
    154
    
    One Color Is Light
    155
    
    Faulty Registration
    156
    
    Poor Fixing
    158
    
    Image Distortion
    159
    
    All One Color
    160
    
    Vertical Streaks
    162
    
    Horizontal Stripes
    164
    
    Faint Print
    166
    
    One Color Band
    172
    
    Horizontal Lines
    173
    
    Color Misregistration
    174
    
    Hollow Print
    177
- Software Setting Problems
  178
  - Cannot Print Data
    178
- Network Problems
  179
  - Cannot Make a Print through Network Connection
    179
- Troubleshooting of the Communications Errors
  180
  - Definition of Error Codes on the Communications List
    180
- Troubleshooting of the Control Panel Cover Assy
  186
  - Nothing Is Displayed on the LCD
    186
  - The Control Panel Cover ASSY Does Not Work
    187
- Troubleshooting of Fax Functions
  188
- Document Feeding Problems
  192
  - No Feeding
    192
  - Double Feeding
    192
  - Paper Jam
    193
  - Wrinkles
    194
- Scanning Image Defect Troubleshooting
  195
  - Image Defect Examples
    195
  - Troubleshooting Image Defect
    195
- Others Problems
  198
Chapter 4 Periodical Maintenance

202
- Consumable Parts
  203
- Safety Precautions
  203
- Periodical Maintenance Parts
  205
  - Procedures to Replace Periodical Maintenance Parts
    206
  - Fuser Unit
    207
  - Installing Procedure
    213
  - Paper Feeding Kit
    219
- CHAPTER 5 Disassembly and Assembly
  
  224
Chapter 5 Disassembly and Assembly

225
- Safety Precautions
  228
- Packing
  229
- Screw Torque List
  230
- Lubrication
  233
- Overview of Gears
  235
- Harness Routing
  239
  - Toner Led Pcb Assy
    247
  - Back Cover Sensor
    249
  - Panel Unit
    253
- Disassembly Flow
  257
- Disassembly Procedure
  259
  - Cord Hook
    260
  - EXT Cap
    261
  - Roller Holder ASSY
    262
  - Separation Pad ASSY
    264
  - Back Cover/Back Cover Stopper L/R
    266
  - Fuser Cover
    269
  - Paper Eject Front Actuator
    270
  - Fuser Unit
    272
  - Side Cover L Assy/Access Cover
    276
  - Side Cover R ASSY
    279
  - Pull Arm L/Pull Arm R/Pull Arm Spring
    281
  - Hinge ASSY L
    285
  - Hinge R/Hinge R Support/Hinge Base
    287
  - ADF Cover ASSY
    288
  - Gear Cover
    289
  - Separation Roller Shaft ASSY
    290
  - Upper Document Chute ASSY
    291
  - Separation Rubber ASSY
    292
  - Paper Feed Roller ASSY
    293
  - Ejection Roller ASSY
    294
  - ADF Sensor PCB ASSY
    295
  - Drive Frame ASSY
    298
  - Paper Stack Lever
    302
  - Document Hold ASSY
    303
  - Control Panel Cover ASSY
    304
  - Document Scanner Unit
    305
  - Panel PCB ASSY
    306
  - Rubber Key L/R
    307
  - LCD/LCD Cover
    308
  - NCU PCB ASSY (NCU Model Only)
    310
  - Battery ASSY
    311
  - Pull Arm Guide
    312
  - Top Dress Cover L/R
    313
  - FB Lock Lever L/R
    314
  - Joint Cover Lock Spring/Joint Cover Lock Lever
    317
  - Wireless LAN PCB ASSY (Wireless LAN Model Only)
    318
  - USB Direct Interface Relay PCB ASSY (USB Direct Interface Model Only)
    321
  - Speaker Unit/Front Cover Top Base
    325
  - Front Cover
    327
  - Manual Feed Slot ASSY
    328
  - TC Arm Spring
    329
  - Arm Guide L Cover
    333
  - Joint Cover Sub ASSY
    334
  - Inner Chute ASSY 2
    337
  - TC Release Lever
    338
  - Paper Stack Lever ASSY
    344
  - FFC Harness:main-LED CTL
    345
  - LED Power Relay PCB ASSY
    348
  - LED Head Control PCB ASSY
    349
  - LED Assy/Holder Hook
    351
  - Z Spring L/Z Spring R
    360
  - Develop Release Motor ASSY
    362
  - Main PCB ASSY
    364
  - Engine PCB ASSY
    365
  - Main PCB Insulation Sheet/Engine Insulation Sheet
    366
  - Main PCB Shield Plate
    367
  - Engine Shield Plate
    368
  - Registration Mark Relay PCB ASSY
    369
  - Drum Develop Drive Unit
    370
  - Develop Drive Motor
    375
  - Paper Feed Motor ASSY
    376
  - Paper Feed Unit
    378
  - Registration Front/Rear Sensor PCB ASSY
    381
  - Manual Sensor PCB ASSY
    383
  - Pick-Up Sector Gear Spring/Friction Spring
    384
  - PF Registration Solenoid
    385
  - Pick-Up Solenoid/Pick-Up Solenoid Lever Spring
    389
  - Fuser/Eject Drive Motor
    391
  - Fuser/Eject Drive Motor Sensor PCB ASSY
    392
  - Top Cover Arm R
    393
  - Top Cover Arm L
    394
  - Air Filter Holder Assy/Ozone Filter
    395
  - Paper Eject Rear Actuator/Paper Eject Rear Actuator Spring/Paper Eject Rear Actuator Top
    398
  - Eject Rear Sensor PCB ASSY
    401
  - Eject Front Sensor PCB ASSY
    402
  - Toner/New Sensor PCB ASSY
    403
  - Belt Drive ASSY
    404
  - Drum Motor Origin Sensor PCB ASSY
    405
  - LV Fan ASSY
    406
  - Main Fan ASSY
    408
  - Low-Voltage Power Supply PCB ASSY
    409
  - Registration Sensor Holder ASSY
    415
  - High-Voltage Power Supply PCB ASSY
    416
  - HVPS Control PCB ASSY
    422
  - Waste Toner Sensor
    423
  - Develop Release Sensor PCB ASSY
    426
  - Belt Cleaner Spring
    427
  - TR Head Spring
    431
  - Side Frame R
    433
  - Toner LED PCB ASSY/LED Holder
    436
  - LM Hook B/LM Hook C/Hook Spring BC10
    437
Chapter 6 Adjustments and Updating of Settings, Required after Parts Replacement

441
Chapter 7 Service Functions

457
- Maintenance Mode
  459
- Other Service Functions
  514

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