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

5-15
Confidential
■ Page 3, 4
These pages include various network settings information of the machine.
18) Sleep Mode Indication (OFF/Dimmed)
This is to select whether the Ready LED is turned off completely or lit in blue with low
light intensity during the Sleep mode. Whenever you switch this mode, the setting is
changed over from the present one to the other. When you take your finger off from the
SW supporter, the Ready LED is lit in 100% light intensity or low light intensity
according to the setting so that you can verify the present setting.
19) Sleep Mode Setting (ON/OFF)
This is to allow you to turn on and off the sleep mode of the machine. The default
setting is ON. The machine automatically goes back to the waiting Service mode state
after the operation is completed.
20) Developer Roller Counter Reset 1 (For the starter toner cartridge)
21) Developer Roller Counter Reset 2 (For the standard toner cartridge)
22) Developer Roller Counter Reset 3 (For the high-capacity toner cartridge)
Since print density is likely to become darker as toner is getting older, the developing
bias is lowered by degrees according to the number of prints so that an almost fixed
density can be maintained from the start of the use of brand-new toner to the end of it.
The value of the developing bias is printed on the maintenance sheet. The developing
bias is a parameter which depends on the developing assembly, so it needs to be reset
when the developing assembly is replaced. At that time, the developing roller counter
reading is also reset. This mode is to enable to execute these operations (equivalent to
those done when the developing assembly is replaced) manually from the service
mode.
HL-2150N/2170W Page 3: Wired Network Information
HL-2170W LAN: Wired Enable setting = ON, LAN: WLAN Enable setting = ON
Page 3: Wired Network Information
Page 4: Wireless Network Information
LAN: Wired Enable setting = ON, LAN: WLAN Enable setting = OFF
Page 3: Wired Network Information
Page 4: Not Available
LAN: Wired Enable setting = OFF, LAN: WLAN Enable setting = ON
Page 3: Wireless Network Information
Page 4: Not Available
LAN: Wired Enable setting = OFF, LAN: WLAN Enable setting = OFF
Page 3&4: Not Available