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Confidential
3.8.3 The USB direct interface does not work (Error code CA, etc)
<User Check>
- Check if the data is supported device.
- Replace the USB flash memory and check if the interface works.
- Turn OFF and ON the power.
- Reduce the data in the USB flash memory.
3.8.4 The room temperature is high or low
<User Check>
- Adjust the room temperature to 10 °C to 30 °C.
- Check if the exhaust opening is blocked.
3.8.5 Paper is not fed from the specified tray
<User Check>
- Specify the tray correctly.
- Check the printer driver setting.
Step
Cause
Remedy
1
Harness connection failure of
USB host relay PCB ASSY
Check the harness connection of the USB
host relay PCB ASSY and reconnect it.
2
USB host relay PCB ASSY
failure
Replace the USB host relay PCB ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Internal temperature
thermistor failure
Replace the Internal temperature thermistor.
2
External temperature/
humidity sensor failure
Replace the high-voltage power supply PCB
ASSY.
3
Main PCB failure
Replace the main PCB ASSY.
Step
Cause
Remedy
1
Malfunction of firmware
Upload the latest firmware.
2
Main PCB failure
Replace the main PCB ASSY.
Summary of Contents for HL-4140CN
Page 19: ...Confidential CHAPTER 1 SPECIFICATIONS ...
Page 29: ...Confidential CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING ...
Page 145: ...Confidential CHAPTER 3 DISASSEMBLY AND ASSEMBLY ...
Page 169: ...3 21 Confidential 8 DISASSEMBLY FLOW Disassembly Re Assembly second ...
Page 296: ...Confidential CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 311: ...Confidential CHAPTER 5 SERVICE FUNCTIONS ...
Page 336: ...5 23 Confidential Inter color position alignment adjustment chart Fig 5 8 ...
Page 343: ...5 30 Confidential Fig 5 11 ...
Page 345: ...5 32 Confidential Fig 5 12 First side Second side ...
Page 347: ...5 34 Confidential Color test pattern Fig 5 13 MCYK Y C K M YCMK_ _A ...
Page 354: ...5 41 Confidential Maintenance information Fig 5 14 ...
Page 382: ...Confidential CHAPTER 6 CIRCUIT DIAGRAMS WIRING DIAGRAM ...
Page 384: ...6 1 Confidential 1 CIRCUIT DIAGRAMS High voltage Power Supply PCB Circuit Diagram 1 3 ...
Page 385: ...6 2 Confidential High voltage Power Supply PCB Circuit Diagram 2 3 ...
Page 386: ...6 3 Confidential High voltage Power Supply PCB Circuit Diagram 3 3 ...
Page 387: ...6 4 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Page 388: ...6 5 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Page 389: ...6 6 Confidential 2 WIRING DIAGRAM Wiring Diagram ...
Page 390: ...Confidential CHAPTER 7 PERIODICAL MAINTENANCE ...
Page 424: ...Confidential APPENDIX 1 SERIAL NUMBERING SYSTEM ...
Page 428: ...Confidential APPENDIX 3 INSTALLING THE MAINTENANCE DRIVER ...
Page 432: ...App 3 4 Confidential 10 Alert warning message appears click Continue Anyway to proceed ...