Service manual
Table Of Contents
- HL-2140/2150N/2170W SERVICE MANUAL
- PREFACE
- TABLE OF CONTENTS
- REGULATION
- SAFETY INFORMATION
- CHAPTER 1 TROUBLESHOOTING
- CHAPTER 2 PERIODICAL MAINTENANCE
- CHAPTER 3 DISASSEMBLY AND ASSEMBLY
- 1. SAFETY PRECAUTIONS
- 2. PACKING
- 3. SCREW TORQUE LIST
- 4. LUBRICATION
- 5. OVERVIEW OF GEARS
- 6. HARNESS ROUTING
- 7. DISASSEMBLY FLOW
- 8. DISASSEMBLY PROCEDURE
- 8.1 PAPER TRAY UNIT / SEPARATION PAD ASSY
- 8.2 FRONT COVER ASSY / SW KEY
- 8.3 BACK COVER / OUTER CHUTE ASSY
- 8.4 FUSER COVER ASSY
- 8.5 INNER CHUTE ASSY
- 8.6 FUSER UNIT
- 8.7 SIDE COVER R ASSY
- 8.8 CORNER COVER
- 8.9 SIDE COVER L ASSY
- 8.10 ROLLER HOLDER ASSY
- 8.11 WIRELESS LAN PCB ASSY (only HL-2170W)
- 8.12 MAIN SHIELD COVER PLATE
- 8.13 MAIN PCB ASSY
- 8.14 TOP COVER ASSY
- 8.15 SW SUPPORTER
- 8.16 PANEL PCB ASSY
- 8.17 HIGH-VOLTAGE PS PCB ASSY
- 8.18 NEW TONER SENSOR HARNESS ASSY
- 8.19 FILTER ASSY
- 8.20 LASER UNIT
- 8.21 FAN MOTOR 60 UNIT / COVER SENSOR HARNESS ASSY / TONER LED PCB ASSY
- 8.22 LVPS
- 8.23 REGISTRATION FRONT SENSOR PCB ASSY
- 8.24 REGISTRATION REAR SENSOR PCB ASSY
- 8.25 DRIVE SUB ASSY
- 8.26 DEV JOINT / DEV GEAR JOINT/53R / REGISTRATION PENDULUM GEAR SPRING
- 8.27 TONER SENSOR PCB UNIT ASSY
- 8.28 REGISTRATION SOLENOID / T1 SOLENOID
- 8.29 MAIN SHIELD PLATE / EJECT SENSOR PCB ASSY
- 8.30 RUBBER FOOT
- 8.31 MAIN FRAME L ASSY
- CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT
- CHAPTER 5 SERVICE SUPPORT SOFTWARE
- CHAPTER 6 CIRCUIT DIAGRAMS, WIRING DIAGRAM
- APPENDIX 1 SERIAL NUMBERING SYSTEM
- APPENDIX 2 SCREW CATALOGUE
- APPENDIX 3 DELETION OF PERSONAL INFORMATION
- APPENDIX 4 REFERENCES
- APPENDIX 5 GLOSSARY

3-3
Confidential
3. SCREW TORQUE LIST
Location of screw Screw type Q’ty
Tightening torque
N m (kgf · cm)
KEY STOPPER Taptite cup B M3x8 2 0.4±0.05 (4±0.5)
INNER CHUTE ASSY Taptite bind B M4x12 2 0.6±0.1 (6±1)
FUSER UNIT
Taptite pan (washer) B
M4x14
20.8±0.1 (8±1)
SIDE COVER R ASSY Taptite bind B M4x12 2 0.8±0.1 (8±1)
CORNER COVER Taptite bind B M4x12 1 0.8±0.1 (8±1)
SIDE COVER L ASSY Taptite bind B M4x12 2 0.8±0.1 (8±1)
MAIN SHIELD COVER PLATE Taptite cup S M3x6 SR
2
0.5±0.05 (5±0.5)
Left side
Taptite cup S M3x6 SR
1
0.8±0.05 (8±0.5)
Right side
MAIN PCB ASSY Taptite cup S M3x6 SR 4(5)* 0.6±0.1 (6±1)
TOP COVER ASSY Taptite bind B M4x12 2 0.8±0.1 (8±1)
PANEL PCB ASSY Taptite cup B M3x8 1 0.5±0.1 (5±1)
HIGH-VOLTAGE PS PCB ASSY Taptite cup S M3x6 SR 2 0.8±0.05 (8±0.5)
Taptite bind B M4x12 2 0.8±0.05 (8±0.5)
LASER UNIT Taptite cup S M3x6 SR
4(2)*
0.8±0.05 (8±0.5)
Left side of Main
frame
Taptite pan (S/P washer) S
M3x8 0(2)*
0.8±0.05 (8±0.5)
Right side of Main
frame
AIR DUCT Taptite cup S M3x6 SR 2 0.8±0.05 (8±0.5)
LV SHIELD PLATE COVER Screw pan (S/P washer)
M3.5x6
10.5±0.05 (5±0.5)
Taptite cup S M3x6 SR 2 0.5±0.05 (5±0.5)
SW HOLDER Taptite bind B M4x12 1 0.8±0.1 (8±1)
INLET HARNESS ASSY Screw pan (S/P washer)
M3.5x6
10.5±0.05 (5±0.5)
Taptite flat B M3x10 2
0.45
±
0.05 (4.5
±
0.5)
PS PCB UNIT Taptite cup S M3x6 SR 2 0.5±0.05 (5±0.5)
LV SHIELD PLATE 2 Taptite bind B M4x12 2 0.8±0.1 (8±1)
Taptite cup S M3x6 SR
1
0.6±0.1 (6±1)
Back Side
Taptite cup S M3x6 SR
1
0.5±0.05 (5±0.5)
Front chute
ground plate side
ACTUATOR HOLDER ASSY Taptite bind B M3x10 2 0.5±0.1 (5±1)
REGISTRATION FRONT SENSOR
PCB ASSY
Taptite bind B M3x10
10.5±0.1 (5±1)
REAR ACTUATOR HOLDER ASSY Taptite bind B M3x10 2 0.5±0.1 (5±1)
REGISTRATION REAR SENSOR
PCB ASSY
Taptite bind B M3x10
10.5±0.1 (5±1)