Brother HL-2290/2295D/2590DN/2595DW/B2000D/ B2050DN/B2080DW/L2310D/L2312D/ L2325DW/L2330D/L2331D/L2335D Service Manual

Present Service Manual cover models:
Brother HL-2290/HL-2295D/HL-2590DN/HL-2595DW/HL-B2000D/
HL-B2050DN/HL-B2080DW/HL-L2310D/HL-L2312D/
HL-L2325DW/HL-L2330D/HL-L2331D/HL-L2335D/
HL-L2336D/HL-L2350DW/HL-L2351DW/HL-L2352DW/
HL-L2357DW/HL-L2370DN/HL-L2370DW(XL)/
HL-L2371DN/HL-L2372DN/HL-L2375DW/HL-L2376DW/
HL-L2385DW/HL-L2386DW.

This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your Brother.
You can print, zoom or read any diagram, picture or page from this manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Brother photocopier.
To see what contain, please read table of contents:

SAFETY INFORMATION
CHAPTER 1. SUPPLEMENTAL SPECIFICATIONS
1. GENERAL
2. NETWORK CONNECTIVITY
3. SERVICE INFORMATION
4. SUPPLIES

CHAPTER 2. ERROR INDICATIONS AND TROUBLESHOOTING
1. INTRODUCTION
1.1 Precautions
1.2 Checks before Commencing Troubleshooting
2. OVERVIEW
2.1 Cross-section Drawing
2.2 Paper Feeding
2.3 Operation of Each Part and Location of Parts
2.4 Block Diagram
2.5 Main Components
3. ERROR INDICATIONS
3.1 Error Codes
3.2 Error Message
3.2.1 LCD models
3.2.2 LED Display (LED Models)
4. TROUBLESHOOTING
4.1 Error Cause and Remedy
4.2 Troubleshooting for Paper Feeding Problems
4.2.1 No paper feeding from paper tray
4.2.2 No paper feeding from MP tray
4.2.3 No paper feeding from manual feed slot
4.2.4 Multiple sheets of paper are fed
4.2.5 Paper becomes wrinkled
4.2.6 Paper is fed at an angle
4.2.7 Paper curls
4.2.8 Unable to perform 2-sided printing
4.2.9 Paper jam
4.3 Troubleshooting for Image Defects
4.3.1 Image defect examples
4.3.2 Troubleshooting image defect
4.4 Troubleshooting for Software Problems
4.4.1 Unable to receive data
4.5 Troubleshooting for Network Problems
4.5.1 Cannot make a print through network connection
4.5.2 Cannot connect to access point
4.6 Troubleshooting for Control Panel Problems
4.6.1 Nothing is displayed on the LCD
4.6.2 Nothing is displayed on the LED
4.6.3 Unable to perform panel operation
4.7 Troubleshooting for Toner Cartridge and Drum Unit Problems
4.7.1 New toner not detected
4.7.2 Toner cartridge not detected
4.7.3 Toner replacement message displayed on LCD is not cleared
4.7.4 Drum error
4.7.5 Drum replacement message displayed on LCD is not cleared
4.8 Troubleshooting for Fuser Unit Problems
4.8.1 Fuser unit failure
4.9 Troubleshooting for Laser Unit Problems
4.9.1 Laser unit failure
4.10 Troubleshooting for PCB Problems
4.10.1 Main PCB failure
4.10.2 Full memory
4.11 Troubleshooting for Other Problems
4.11.1 Cannot make print
4.11.2 Cannot update firmware
4.11.3 “Paper Low” message does not disappear
4.11.4 Message indicating that the report is full does not disappear
4.11.5 Paper tray cannot be recognized

CHAPTER 3. DISASSEMBLY/REASSEMBLY
1. SAFETY PRECAUTIONS
2. PACKING
3. SCREW CATALOGUE
4. SCREW TORQUE LIST
5. LUBRICATION
6. OVERVIEW OF GEARS
7. HARNESS ROUTING
8. DISASSEMBLY FLOW CHART
9. DISASSEMBLY PROCEDURE
9.1 Preparation
9.2 Back cover
9.3 Outer chute ASSY
9.4 Front cover ASSY / Support flap
9.5 Side cover R
9.6 Fuser cover
9.7 Inner chute ASSY
9.8 Side cover L
9.9 Top cover ASSY
9.10 Fuser unit
9.11 Low-voltage power supply PCB ASSY
9.12 New toner sensor PCB ASSY
9.13 HVPS flat cable / High-voltage power supply PCB ASSY
9.14 Fan
9.15 Relay PCB ASSY (For toner box models and MP models) / Toner box new PCB ASSY (For models with toner box)
9.16 Laser unit flat cable / Laser unit
9.17 Filter
9.18 Wireless LAN PCB (Only for wireless network models)
9.19 Roller holder ASSY
9.20 Main PCB ASSY
9.21 T1 clutch / Registration clutch
9.22 Frame L unit
9.23 Paper feed motor / Paper feed motor flat cable
9.24 Fuser gear 64R/36R
9.25 Toner sensor PCB ASSY (Only for models with Toner box)
9.26 Front cover sensor
9.27 Eject sensor PCB ASSY
9.28 Registration front/rear actuator holder ASSY
9.29 Paper feed roller ASSY / Paper feed sensor PCB ASSY

CHAPTER 4. ADJUSTING AND UPDATING SETTINGS AS
REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY
1.1 Setting by Spec
1.2 Installing Firmware (Sub firmware and main firmware)
1.2.1 Checking firmware version
1.2.2 Installing firmware
1.3 Setting Serial Number and Entering Adjusted Value of Laser Unit
2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY
2.1 Reset Irregular Power Supply Detection Counter of the Low-voltage Power Supply PCB
3. IF YOU REPLACE THE LASER UNIT
3.1 Entering Adjusted Value of Laser Unit

CHAPTER 5. SERVICE FUNCTIONS
1. MAINTENANCE MODE
1.1 How to Enter Maintenance Mode
1.1.1 Method of entering maintenance mode for service personnel
1.1.2 Method of entering end-user accessible maintenance mode
1.2 List of Maintenance Mode Functions
1.2.1 List of maintenance mode functions for LCD models
1.2.2 List of maintenance mode functions using [Go] (LED models)
1.3 Details of Maintenance Mode Functions for LCD Models
1.3.1 Initialize EEPROM parameters (Function code 01, 91)
1.3.2 Transition to shipping state (Function code 03)
1.3.3 Monochrome print quality test pattern (Function code 09)
1.3.4 Set worker switches (WSW) and
print worker switch setting data (Function code 10, 11)
1.3.5 Check LCD operation (Function code 12)
1.3.6 Check control panel key operation (Function code 13)
1.3.7 Display software version (Function code 25)
1.3.8 Check sensor operation (Function code 32)
1.3.9 Display LAN connection status (Function code 33)
1.3.10 Change USB No. return value / Adjust left-end print position /
Adjust upper-end print position /
Change ON/OFF setting for lower case compensation /
Change ON/OFF setting for fixation strength improvement (Function code 45)
1.3.11 Check toner cartridge (Models with cartridge sensor only) (Function code 57)
1.3.12 Continuous print test (Function code 67)
1.3.13 Print frame pattern (single-side printing) (Function code 69)
1.3.14 Print frame pattern (duplex printing) (Function code 70)
1.3.15 Print test pattern (Function code 71)
1.3.16 Setting by spec (Function code 74)
1.3.17 Print maintenance information (Function code 77)
1.3.18 Check fan operation (Function code 78)
1.3.19 Display machine log information (Function code 80)
1.3.20 Display machine error code (Function code 82)
1.3.21 Reset irregular power supply detection counter of low-voltage power supply PCB (Function code 88)
1.3.22 Quit maintenance mode (Function code 99)
1.4 Details of Maintenance Mode Functions Using [Go] (LED models)
1.4.1 Test printing
1.4.2 Change USB No. return value
1.4.3 Factory reset / Settings reset
1.4.4 Engine error ignore mode
1.4.5 Check sensor operation
1.4.6 Print continuous lattice pattern
1.4.7 Check RAM
1.4.8 Change ON/OFF setting for duplex printing
1.4.9 Change A4/Letter setting for paper size
1.4.10 Maintenance printing
1.4.11 Print maintenance data and frame pattern
1.4.12 Resetting to factory shipping state
1.4.13 Change Ready LED light intensity in sleep mode
1.4.14 Reset irregular power supply detection counter of low-voltage power supply PCB
1.4.15 Firmware installing mode
1.4.16 Ready state of maintenance mode for service personnel
2. OTHER SERVICE FUNCTIONS
2.1 Print Printer Settings
2.2 Drum Cleaning
2.3 Resetting Drum Counter
2.4 Change Active/Inactive Setting for Quiet Mode (LED models only)
2.5 Change Active/Inactive Setting for Auto Power Down Mode (LED models only)
2.6 Change Active/Inactive Setting for Eco Mode (LED models only)
2.7 Change Active/Inactive Setting for Toner Save Mode (LED models only)
2.8 Change Continue/Stop Mode for Toner Cartridge (LED models only)

CHAPTER 6. WIRING DIAGRAM
1. WIRING DIAGRAM

CHAPTER 7. PERIODICAL MAINTENANCE
1. PERIODICAL REPLACEMENT PARTS

APPENDIX 1 SERIAL NUMBERING SYSTEM
APPENDIX 2 DELETING USER SETTING INFORMATION
APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER

Brother HL-2290 HL-2295D HL-2590DN HL-2595DW HL-B2000D HL-B2050DN HL-B2080DW HL-L2310D HL-L2312D HL-
L2325DW HL-L2330D HL-L2331D HL-L2335D HL-L2336D HL-L2350DW HL-L2351DW HL-L2352DW HL-L2357DW HL-L2370DN HL-L2370DW(XL) HL-L2371DN HL-L2372DN HL-L2375DW HL-L2376DW HL-L2385DW HL-L2386DW HL2290 HL2295D HL2590DN HL2595DW HLB2000D HLB2050DN HLB2080DW HLL2310D HLL2312D HL
L2325DW HLL2330D HLL2331D HLL2335D HLL2336D HLL2350DW HLL2351DW HLL2352DW HLL2357DW HLL2370DN HLL2370DW(XL) HLL2371DN HLL2372DN HLL2375DW HLL2376DW HLL2385DW HLL2386DW B2000D B2050DN B2080DW L2310D L2312D L2325DW L2330D L2331D L2335D L2336D L2350DW L2351DW L2352DW L2357DW L2370DN L2370DW(XL) L2371DN L2372DN L2375DW L2376DW L2385DW L2386DW