Brother HL-3140CW/3142CW/3150CDN/3150CDW/3152CDW/3170CDW/3172CDW Service Manual and Parts List Manual

Service Manual and Parts List Manual Brother HL-3140CW/3142CW/3150CDN/3150CDW/3152CDW/3170CDW/3172CDW;
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 Service Manual and Parts List 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 HL-3140CW/3142CW/3150CDN/3150CDW/3152CDW/3170CDW/3172CDW.
To see what contain, please read table of contents:

SAFETY INFORMATION

CHAPTER 1) SPECIFICATIONS
1. SPECIFICATIONS LIST
1.1 General
1.2 Network Connectivity
1.3 Service Information
1.4 Supplies
1.5 Paper
1.5.1 Paper handling
1.5.2 Media specifications
1.5.3 Type and size of paper
1.6 Printable Area

CHAPTER 2) ERROR INDICATION AND TROUBLESHOOTING
1. INTRODUCTION
1.1 Precautions
1.2 Initial Check
2. OVERVIEW
2.1 Cross-section Drawing
2.2 Paper Feeding
2.3 Operation of Each Part
2.4 Block Diagram
2.5 Components
3. ERROR INDICATIONS
3.1 Error Codes
3.2 Error Message
4. TROUBLESHOOTING
4.1 Error Cause and Remedy
4.2 Paper Feeding Problems
4.2.1 No paper feeding from paper tray
4.2.2 No paper feeding from the manual feed slot
4.2.3 Double feeding
4.2.4 Wrinkles on paper
4.2.5 Paper inclines diagonally
4.2.6 Curl of paper
4.2.7 Unable to perform 2-sided printing
4.2.8 Paper jam
4.3 Image Defect Troubleshooting
4.3.1 Image defect examples
4.3.2 Troubleshooting image defect
4.4 Software Setting Problems
4.4.1 Cannot print data
4.5 Network Problems
4.5.1 Cannot make a print through network connection
4.6 Troubleshooting of the Control Panel
4.6.1 Nothing is displayed on the LCD
4.6.2 No LED indication
4.6.3 Unable to perform panel operation
4.7 Troubleshooting of the Toner Cartridge and Drum Unit
4.7.1 New toner not detected
4.7.2 Cartridge error (Toner cartridge not detected)
4.7.3 Toner low
(Even though a new toner cartridge is set, Toner low warning remains)
4.7.4 Drum error
4.7.5 Drum unit replacement
(Even though drum counter is reset, “Replace Drum” warning remains.)
4.8 Troubleshooting of the Fuser Unit
4.8.1 Fuser unit failure
4.9 Troubleshooting of the LED ASSY
4.9.1 LED ASSY failure
4.10 Troubleshooting on the PCB
4.10.1 Main PCB failure
4.10.2 Full memory
4.10.3 Print overrun
4.10.4 High-voltage power supply PCB failure
4.10.5 Low-voltage power supply PCB failure
4.11 Others Problems
4.11.1 The machine is not turned ON
4.11.2 Main fan not rotate
4.11.3 Top cover unit open
4.11.4 Back cover open
4.11.5 Unusual noise generated from the machine
4.11.6 Memory related failure
4.11.7 Printing related failure

CHAPTER 3) DISASSEMBLY AND ASSEMBLY
1. SAFETY PRECAUTIONS
2. PACKING
3. SCREW CATALOGUE
4. SCREW TORQUE LIST
5. LUBRICATION
6. HARNESS ROUTING
7. DISASSEMBLY FLOW
8. DISASSEMBLY PROCEDURE
8.1 Lift Gear 46/Gear Z23M10Z14M75/Gear Z19M10
8.2 Support Flap
8.3 Back Cover ASSY
8.4 Fuser Cover ASSY
8.5 Fuser Unit
8.6 Registration Mark L PCB ASSY/Registration Mark R PCB ASSY
8.7 Side Cover L
8.8 Side Cover R
8.9 Manual Feed Slot Cover ASSY
8.10 Back Cover Lower
8.11 Duplex Tray/Duplex Tray Side Guide (2-sided Printing Model Only)
8.12 Damper Stopper
8.13 Flat Cable Cover/Holder Hook/LED ASSY
8.14 Z Spring L
8.15 Paper Stack Lever
8.16 TC Lock Arm Guide
8.17 Sub Frame ASSY
8.18 Panel PCB ASSY
8.19 Rubber Key ASSY
8.20 Diffusion Film/LCD
8.21 LED Control Flat Cable
8.22 LED Flat Cable
8.23 LED Control PCB ASSY
8.24 External Temperature/Humidity Sensor PCB ASSY
8.25 Wireless LAN Cap/Wireless LAN PCB ASSY/Spacer Sponge
8.26 Main PCB ASSY
8.27 Develop Release Clutch
8.28 Process Drive Unit
8.29 Fuser Drive Gear Z25
8.30 Registration Clutch
8.31 Paper Feed Clutch
8.32 Main Drive Unit
8.33 Roller Holder ASSY
8.34 Paper Feed Unit
8.35 Damper R ASSY
8.36 Damper L ASSY
8.37 Cooling Roller Spring L/Paper Eject ASSY
8.38 Back Cover Upper
8.39 Exit Roller Bushing/Eject Roller ASSY
8.40 Back Cover Sensor Harness ASSY
8.41 Eject Sensor PCB ASSY
8.42 High-voltage Power Supply PCB ASSY/HVPS Flat Cable
8.43 Main Fan
8.44 Develop Release Sensor PCB ASSY
8.45 Low-voltage Power Supply PCB ASSY

CHAPTER 4) ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT
1. IF YOU REPLACE THE MAIN PCB ASSY
1.1 Installing the Firmware (Sub Firmware (GDI or PCL/PS), Main Firmware)
1.1.1 Checking firmware version
1.1.2 Installing the firmware
1.2 Initialization of EEPROM of Main PCB ASSY (Function code 01)
1.3 Setting by Country (Function code 74)
1.4 Setting the Serial Number (Function code 80)
1.5 Motor Reset (Function code 57)
1.6 Continuous Adjustments of Density and Registration Sensors
(Function code 73)
2. IF YOU REPLACE THE REGISTRATION MARK L PCB ASSY AND REGISTRATION MARK R PCB ASSY
2.1 Continuous Adjustments of Density and Registration Sensors (Function code 73)
3. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY 4-6
3.1 Reset of Irregular Power Supply Detection Counter
4. IF YOU REPLACE THE PROCESS DRIVE UNIT
4.1 Motor Reset (Function code 57)
5. IF YOU REPLACE THE LED ASSY OR TOP COVER ASSY
5.1 Sensitivity Adjustment of Density Sensor (Function code 72)
5.2 Developing Bias Voltage Correction (Function code 83)
5.3 Adjustment of Color Registration (Adjustment of Inter-color Position Alignment)
without Registration Sensor Calibration (Function code 66)
6. IF YOU REPLACE THE FUSER UNIT/PF KIT 1
6.1 Counter Reset after Fuser Unit/PF Kit 1 Replacement (Function code 88)

CHAPTER 5) SERVICE FUNCTIONS
1. MAINTENANCE MODE
1.1 How to Enter the Maintenance Mode
1.2 How to Enter the End User-accessible Maintenance Mode
1.3 List of Maintenance-mode Functions
1.4 Detailed Description of Maintenance-mode Functions
1.4.1 EEPROM parameter initialization (Function code 01, 91)
1.4.2 Monochrome image quality test pattern (Function code 09)
1.4.3 Worker switch (WSW) setting and printout (Function code 10, 11)
1.4.4 Operational check of LCD (Function code 12)
1.4.5 Operational check of control panel button (Function code 13)
1.4.6 Software version check (Function code 25)
1.4.7 “One Push Demo” setting (Function code 28)
1.4.8 Operational check of sensors (Function code 32)
1.4.9 LAN connection status display (Function code 33)
1.4.10 EEPROM Dump Print (Function code 40)
1.4.11 Changing return value of USB No./Switching Dither Pattern/ Adjusting left-end print start position on second side in duplex printing (2-sided printing model only) (Function code 45)
1.4.12 Motor reset (Function code 57)
1.4.13 Adjustment of color registration (Adjustment of inter-color position alignment) (Function code 66)
1.4.14 Print test (Function code 67)
1.4.15 LED test pattern print (Function code 68)
1.4.16 Frame pattern print (One-sided) (Function code 69)
1.4.17 Frame pattern print (Two-sided) (Function code 70)
1.4.18 Color test pattern (Function code 71)
1.4.19 Sensitivity adjustment of density sensor (Function code 72)
1.4.20 Continuous adjustments of density and registration sensor (Function code 73)
1.4.21 Setting by country (Function code 74)
1.4.22 Printout of maintenance information (Function code 77)
1.4.23 Operational check of fans (Function code 78)
1.4.24 Display of device log information (Function code 80)
1.4.25 Display of device error codes (Function code 82)
1.4.26 Developing bias voltage correction (Function code 83)
1.4.27 Counter reset after fuser unit/PF kit 1 replacement (Function code 88)
1.4.28 Exit from the maintenance mode (Function code 99)
2. OTHER SERVICE FUNCTIONS
2.1 Service Function Menus Enabled by Pressing Button (s) When Turning
the Machine ON
2.2 Toner Manual Reset Function
2.3 Parts Life Reset Function
2.4 Printout of Printer Settings
2.5 Deletion of User Setting Information, etc
2.6 How to Recover from Errors of the Fuser Unit
2.7 Switching of Return Value of USB No./Support for Banding
2.8 Deep Sleep Function

CHAPTER 6) WIRING DIAGRAM
1. WIRING DIAGRAM

CHAPTER 7) PERIODICAL MAINTENANCE
1. PRECAUTIONS
2. PERIODICAL REPLACEMENT PARTS
2.1 Procedures to Replace Periodical Replacement Parts
2.1.1 PF Kit 1
2.1.2 Fuser Unit

APPENDIX 1 SERIAL NUMBERING SYSTEM
APPENDIX 2 DELETION OF USER SETTING INFORMATION, ETC.
APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER

and Parts List Manual.

HL-3140CW HL-3142CW HL-3150CDN HL-3150CDW HL-3152CDW HL-3170CDW HL-3172CDW HL3140CW HL3142CW HL3150CDN HL3150CDW HL3152CDW HL3170CDW HL3172CDW HL CDW