Name: Brother HL-L2370DWXL
Brand: Brother
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5-54

Confidential

2.2 Drum Cleaning

Attach the drum cleaning sheet kit (SP) (D011B4001) on the drum unit, and drum cleaning

starts.

The insertion supplied with the drum cleaning sheet kit (SP) (D011B4001) is published on the

next page.

Note:

• The drum cleaning sheet is supposed to be used only one time.

Default Chapter1
- Service Manual1
- Copyright and License3
- Open Source Licensing Remarks3
- Table of Contents4
Safety Information9
- Additional Information13
Chapter 1 Supplemental Specifications14
General14
Network Connectivity19
Service Information19
Supplies20
Chapter 2 Error Indications and Troubleshooting23
Introduction23
- Precautions23
- Checks before Commencing Troubleshooting25
Overview27
- Cross-Section Drawing27
- Paper Feeding29
- Operation of each Part and Location of Parts31
- Block Diagram33
- Main Components34
Error Indications35
- Error Codes36
- Error Message43
Troubleshooting55
- Error Cause and Remedy55
- Troubleshooting for Paper Feeding Problems75
- Troubleshooting for Image Defects85
  - Image Defect Examples85
  - Troubleshooting Image Defect86
- Troubleshooting for Software Problems100
  - Unable to Receive Data100
- Troubleshooting for Network Problems101
  - Cannot Make a Print through Network Connection101
  - Cannot Connect to Access Point101
- Troubleshooting for Control Panel Problems102
- Troubleshooting for Toner Cartridge and Drum Unit Problems103
- Troubleshooting for Fuser Unit Problems105
  - Fuser Unit Failure105
- Troubleshooting for Laser Unit Problems105
  - Laser Unit Failure105
- Troubleshooting for PCB Problems106
  - Main PCB Failure106
  - Full Memory106
- Troubleshooting for Other Problems107
Chapter 3 Disassembly/Reassembly110
Safety Precautions110
Packing111
Screw Catalogue112
Screw Torque List113
Lubrication115
Overview of Gears116
Harness Routing118
Disassembly Flow Chart125
Disassembly Procedure126
- Preparation126
- Back Cover127
- Outer Chute ASSY128
- Front Cover ASSY / Support Flap129
- Side Cover R132
- Fuser Cover133
- Inner Chute ASSY134
- Side Cover L135
- Top Cover ASSY136
- Fuser Unit140
- Low-Voltage Power Supply PCB ASSY142
- New Toner Sensor PCB ASSY144
- HVPS Flat Cable / High-Voltage Power Supply PCB ASSY145
- Fan147
- Relay PCB ASSY (for Toner Box Models and MP Models)148
  - Toner Box New PCB ASSY (for Models with Toner Box)148
- Laser Unit Flat Cable / Laser Unit150
- Filter152
- Wireless LAN PCB (Only for Wireless Network Models)153
- Roller Holder ASSY154
- Main PCB ASSY155
- T1 Clutch / Registration Clutch156
- Frame L Unit159
- Paper Feed Motor / Paper Feed Motor Flat Cable162
- Fuser Gear 64R/36R164
- Toner Sensor PCB ASSY (Only for Models with Toner Box)165
- Front Cover Sensor166
- Eject Sensor PCB ASSY167
- Registration Front/Rear Actuator Holder ASSY169
- Paper Feed Roller ASSY / Paper Feed Sensor PCB ASSY172
Chapter 4 Adjusting and Updating Settings as Required after Parts Replacement173
If You Replace the Main Pcb Assy173
- Setting by Spec174
- Installing Firmware (Sub Firmware and Main Firmware)176
  - Checking Firmware Version176
  - Installing Firmware177
- Setting Serial Number and Entering Adjusted Value of Laser Unit178
If You Replace the Low-Voltage Power Supply Pcb Assy181
- Reset Irregular Power Supply Detection Counter of the Low-Voltage Power Supply PCB181
If You Replace the Laser Unit182
- Entering Adjusted Value of Laser Unit183
Chapter 5 Service Functions185
Maintenance Mode185
- How to Enter Maintenance Mode185
  - Method of Entering Maintenance Mode for Service Personnel185
  - Method of Entering End-User Accessible Maintenance Mode186
- List of Maintenance Mode Functions187
  - List of Maintenance Mode Functions for LCD Models187
  - List of Maintenance Mode Functions Using [Go] (LED Models)188
- Details of Maintenance Mode Functions for LCD Models190
- Details of Maintenance Mode Functions Using [Go] (LED Models)226
Other Service Functions236
- Print Printer Settings236
- Drum Cleaning238
- Resetting Drum Counter240
- Change Active/Inactive Setting for Quiet Mode (LED Models Only)240
- Change Active/Inactive Setting for Auto Power down Mode (LED Models Only)241
- Change Active/Inactive Setting for Eco Mode (LED Models Only)241
- Change Active/Inactive Setting for Toner Save Mode (LED Models Only)241
- Change Continue/Stop Mode for Toner Cartridge (LED Models Only)242
Chapter 6 Wiring Diagram243
Chapter 7 Periodical Maintenance244
Periodical Replacement Parts244
Appendix 1 Serial Numbering System245
Appendix 2 Deleting User Setting Information246
Appendix 3 Installing the Maintenance Printer Driver247

Brother HL-L2370DWXL Service Manual

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Brand	Brother
Model	HL-L2370DWXL
Category	Printer
Language	English