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2-7

Confidential

2.4 Block Diagram

Fig. 2-3

High-voltage power

supply PCB

Eject sensor PCB

Eject sensor

Center thermistor

Side thermistor

Low-voltage

power supply PCB

New toner sensor PCB

New toner sensor

Heater relay

Heater

Registration rear sensor

Registration front/rear

sensor PCB

Registration front sensor

Panel PCB

WLAN LED

Power key

LCD

Fan

Front cover sensor

Fuser unit

Registration clutch

T1 clutch

Main motor

LD PCB

BD sensor

Polygon motor

Back cover/duplex

tray sensor

Paper feed sensor

Paper feed sensor PCB

LCD models

Wireless LAN PCB

* WLAN model only

Panel PCB

Toner LED

Drum LED

Paper LED

LED models

Ready LED

Laser unit

Main PCB

Default Chapter4
- Table of Contents4
Safety Information9
Chapter 1 Supplemental Specifications14
General14
Network Connectivity16
Service Information16
Supplies17
Chapter 2 Error Indications & Troubleshooting19
Introduction19
- Precautions19
- Checks before Commencing Troubleshooting20
Overview22
- Cross-Section Drawing22
- Paper Feeding23
- Operation of each Part24
- Block Diagram25
- Main Components26
Error Indications27
- Error Codes31
- Error Messages34
- LED Display (LED Models)37
  - LED Display When Operator Call Occurs37
  - LED Display When Service Call Occurs40
Troubleshooting44
- Error Cause and Remedy44
- Troubleshooting for Paper Feeding Problems65
- Troubleshooting for Image Defects74
  - Image Defect Examples74
  - Troubleshooting According to Image Defect75
- Troubleshooting for Software Problems86
  - Cannot Receive Data86
- Troubleshooting for Network Problems87
  - Cannot Print Via Network Connection87
  - Cannot Connect to Access Point87
- Troubleshooting for Control Panel Problems88
- Troubleshooting for Toner and Drum Problems89
- Troubleshooting for Fuser Unit Problems91
  - Fuser Unit Failure91
- Troubleshooting for Laser Unit Problems91
  - Laser Unit Failure91
- Troubleshooting for PCB Problems92
- Troubleshooting for Other Problems93
  - Cannot Print93
  - Cannot Update Firmware93
Chapter 3 Disassembly/Reassembly94
Safety Precautions94
Packing95
Screw Catalogue96
Screw Torque List97
Lubrication98
Overview of Gears99
Harness Routing101
Disassembly Flow Chart106
Disassembly Procedure107
- Preparation107
- Back Cover108
- Outer Chute ASSY109
- Front Cover ASSY110
- Side Cover R111
- Fuser Cover112
- Inner Chute ASSY113
- Side Cover L114
- Top Cover ASSY115
- Fuser Unit118
- Low-Voltage Power Supply PCB ASSY120
- Fan122
- High-Voltage Power Supply PCB ASSY123
- Filter125
- Laser Unit126
- Wireless LAN PCB (Wireless Network Model Only)128
- Roller Holder ASSY129
- Main PCB ASSY130
- T1 Clutch and Registration Clutch131
- New Toner Sensor PCB ASSY132
- Main Frame L ASSY133
- Main Motor135
- Fuser Gear 67R/40R137
- Eject Sensor PCB ASSY138
- Registration Front/Rear Actuator Holder ASSY140
Chapter 4 Adjusting and Updating Settings as Required after Parts Replacement143
If You Replace the Main Pcb Assy143
- Setting Default Paper Size (LED Models) / Setting by Spec (LCD Models)144
- Installing Firmware (Sub Firmware, Demo Firmware, and Main Firmware)145
  - Checking Firmware Version145
  - Installing Firmware146
- Setting Serial Number and Entering Adjusted Value of Laser Unit147
If You Replace the Low-Voltage Power Supply Pcb Assy148
- Reset Irregular Power Supply Detection Counter of Low-Voltage Power Supply PCB148
If You Replace the Laser Unit149
- Entering Adjusted Value of Laser Unit150
Chapter 5 Service Functions151
Maintenance Mode151
- How to Enter Maintenance Mode151
  - Method of Entering Maintenance Mode for Service Personnel151
  - Method of Entering End-User Accessible Maintenance Mode152
- List of Maintenance Mode Functions153
  - List of Maintenance Mode Functions for LCD Models153
  - List of Maintenance Mode Functions Using [Go] Key (LED Models)154
- Details of Maintenance Mode Functions for LCD Models156
- Details of Maintenance Mode Functions Using [Go] Key (LED Models)184
Other Service Functions193
- Engine Error Ignore Mode (LCD Models Only)193
- Change USB No. Return Value / Adjust Left-End Print Start Position on Second Side When Duplex Printing (LCD Models Only)194
- Print Printer Settings195
Chapter 6 Wiring Diagram196
Chapter 7 Periodical Maintenance197
Periodical Replacement Parts197
Appendix 1 Serial Numbering System198
Appendix 2 Deleting User Setting Information199
Appendix 3 Installing the Maintenance Printer Driver200

Brand	Brother
Model	HL-2560DN
Category	Printer
Language	English

Brother HL-2560DN Service Manual

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