Brother HL-4570CNW Manuals

Manuals and User Guides for Brother HL-4570CNW. We have 1 Brother HL-4570CNW manual available for free PDF download: Service Manual

Brother HL-4570CNW Service Manual

Brother HL-4570CNW Service Manual (433 pages)

Color Laser Printer

Brand: Brother | Category: Printer | Size: 25.15 MB

Table of Contents

Service Manual
1
Specifications
2
Table of Contents
3
Internal Laser Radiation
10
Regulation
10
Safety Information
14
Additional Information
18
Chapter 1 Specifications

19
- Specifications List
  21
  - General
    21
  - Computer Requirements
    23
  - Network Connectivity
    24
  - Service Information
    25
  - Supplies
    26
  - Paper
    27
    
    Media Specifications
    27
    
    Paper Handling
    27
    
    Type and Size of Paper
    27
  - Unprintable Area
    28
Chapter 2 Error Indication and Troubleshooting

29
- Introduction
  32
  - Precautions
    32
  - Initial Check
    33
  - Operating Environment
    33
- Overview
  35
  - Cross-Section Drawing
    35
  - Paper Feeding
    36
  - Operation of each Part
    37
  - Block Diagram
    39
  - Components
    40
- Error Indications
  41
  - Error Codes
    41
  - Error Messages
    47
    
    Replace Fuser
    49
    
    Short Paper
    50
    
    Size Mismatch
    50
  - Error Cause and Remedy
    52
    
    Error Code 85
    88
    
    Error Code 86
    88
  - Paper Feeding Problems
    117
    
    No Feeding
    117
    
    Double Feeding
    120
    
    Paper Jam
    120
    
    Dirt on Paper
    124
    
    Wrinkles on Paper
    124
  - Image Defect Troubleshooting
    125
    
    Image Defect Examples
    125
    
    Pitch Indicated in Roller Image
    126
    
    Troubleshooting Image Defect
    126
    
    One Color Is Light
    127
    
    Faulty Registration
    128
    
    Poor Fixing
    129
    
    Completely Blank
    130
    
    Image Distortion
    130
    
    All One Color
    131
    
    Dirt on Back Side of Paper
    131
    
    Vertical Streaks
    132
    
    Vertical Streaks in a Dark Background
    133
    
    White Horizontal Stripes on One Color Image
    134
    
    White Vertical Streaks on One Color Image
    134
    
    Faint Print
    135
    
    White Spots on One Color Image
    136
    
    One Color Band
    137
    
    One Color Spots or Dirt
    137
    
    Horizontal Lines
    138
    
    Hollow Print
    140
    
    Print Crease
    141
  - Software Setting Problems
    142
    
    Cannot Print Data
    142
  - Network Problems
    142
    
    Cannot Make a Print through Network Connection (Error Code ED, EE)
    142
  - Others Problems
    143
    
    The Fan Does Not Work (Error Code 2B, EC)
    143
    
    The Printer Is Not Turned ON, or the LCD Indication Does Not Appear
    143
    
    Paper Is Not Fed from the Specified Tray
    144
    
    The Room Temperature Is High or Low
    144
    
    The USB Direct Interface Does Not Work (Error Code CA, Etc)
    144
Chapter 3 Disassembly and Assembly

145
- Safety Precautions
  149
- Packing
  150
- Screw Catalogue
  151
- Screw Torque List
  152
- Lubrication
  154
- Overview of Gears
  156
- Harness Routing
  158
  - Laser Unit
    159
  - Develop Release Motor
    160
  - Front Cover Sensor
    160
  - Top Drive Assy
    161
  - Paper Eject Assy
    164
  - Internal Temperature Thermistor
    168
- Disassembly Flow
  169
- Disassembly Procedure
  170
  - Paper Tray
    171
  - Paper Stopper
    172
  - Back Cover/Back Cover Stopper Arm L/R
    173
  - Fuser Cover
    176
  - Fuser Unit
    178
  - Side Cover L/Access Cover
    181
  - Side Cover R ASSY
    184
- Duplex Feed ASSY
  186
- MP Cover ASSY/MP Paper Guide ASSY
  187
- MP Link L/R
  190
- Front Cover Arm L/R
  191
- Front Cover Release Button/Front Cover Release Button Spring
  195
- Top Cover ASSY
  197
- Wireless LAN PCB
  200
- Lcd Assy
  201
- Panel PCB ASSY
  203
- USB Host Relay PCB ASSY
  204
- Main PCB ASSY
  206
- Engine PCB ASSY
  208
- Laser Unit
  209
- Develop Release Motor
  212
- Front Cover Sensor
  213
- Top Drive ASSY
  214
- Forced Develop Release Link
  219
- Drum Drive Motor
  220
- Drum Position Sensor PCB ASSY
  223
- Registration Solenoid ASSY
  224
- Develop Release Sensor PCB Assy/Mono Solenoid ASSY
  225
- Fuser Develop Motor ASSY
  227
- PF Plate ASSY/T1 Solenoid ASSY
  228
- Toner/New Sensor PCB ASSY
  230
- Internal Temperature Thermistor
  231
- Fuser Fan
  232
- Paper Eject ASSY
  234
- Filter ASSY
  235
- Paper Eject Motor
  237
- Back Cover Sensor ASSY
  238
- Power Fan
  239
- Low-Voltage Power Supply Unit
  241
- Paper Eject Sensor PCB ASSY
  244
- Low-Voltage Power Supply PCB Assy/Inlet Harness ASSY
  245
- Cleaner Pinch Roller Holder
  248
- Registration Mark Sensor Holder Assy/Shutter Solenoid
  250
- MP Paper Empty/Registration Front Sensor PCB ASSY
  253
- Pf Assy
  261
- T1 Registration Front/Rear Sensor PCB ASSY
  264
- Disassembly Procedure (Lt-300Cl)
  277
  - T2 Paper Tray Unit
    277
  - T2 Separation Roller ASSY/T2 Paper Feed Roller ASSY 1
    279
  - T2 Cover Rear
    281
  - T2 Cover Left
    282
  - T2 Cover Right
    283
  - T2 Relay PCB ASSY
    284
  - T2 Solenoid ASSY
    285
  - Collar 6
    286
  - T2 Paper Feed Frame Unit
    287
Chapter 4 Adjustments and Updating of Settings, Required after Parts Replacement

296
Chapter 5 Service Functions

311
Chapter 6 Circuit Diagrams & Wiring Diagram

382
- Circuit Diagrams
  384
- Wiring Diagram
  389
Chapter 7 Periodical Maintenance

390
- Precautions
  392
- Periodical Replacement Parts
  393
  - Procedures to Replace Periodical Replacement Parts
    393
    
    Fuser Unit
    394
    
    Laser Unit
    402
    
    Paper Feeding Kit1
    415
    
    Paper Feeding Kit2
    418
    
    MP Paper Feeding Kit
    421
Appendix 1 Serial Numbering System

425

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