Confidential
1-54
Downward fogging of solid color
User Check
- Toner may be empty. Replace the toner cartridge with a new one.
Step
Cause
Check
Result
Remedy
1 Transfer
HVPS
PCB failure
Is the problem solved after
replacing the transfer
HVPS PCB ASSY?
Yes
Replace the transfer
HVPS PCB ASSY.
2 Charge
HVPS
PCB failure
Is the problem solved after
replacing the charge HVPS
PCB ASSY?
Yes
Replace the charge
HVPS PCB ASSY.
3
Engine PCB
failure
Is the problem solved after
replacing the engine PCB
ASSY?
Yes
Replace the engine
PCB ASSY.
Horizontal lines
User Check
- The paper tray ground terminal provided in the machine body
may be dirty. Clean the contact with a dry cloth.
Step
Cause
Check
Result
Remedy
1
Dirt on charged
electrode
Are the electrodes on the
drum unit and machine
body dirty?
Yes
Clean both electrodes
2
Paper tray ground
terminal provided
in machine body
Is the paper tray ground
terminal bent, which is
provided in the machine
body?
Yes
Correct bending of
paper tray ground
terminal.
Ghost
User Check
- Check the machine’s environment, conditions such as high humidity may
cause this situation to occur.
- Check that the appropriate media type is selected in the printer driver.
- Replace the drum unit with a new one.
Step
Cause
Check
Result
Remedy
1 Transfer
HVPS
PCB failure
Is the problem solved after
replacing the transfer
HVPS PCB ASSY?
Yes
Replace the transfer
HVPS PCB ASSY.
2 Charge
HVPS
PCB failure
Is the problem solved after
replacing the charge HVPS
PCB ASSY?
Yes
Replace the charge
HVPS PCB ASSY.
3
Engine PCB
failure
Is the problem solved after
replacing the engine PCB
ASSY?
Yes
Replace the engine
PCB ASSY.
Содержание HL-4040CN
Страница 265: ...Confidential 4 7 11 Alert warning message of WHQL appears Click Continue Anyway to proceed ...
Страница 320: ...Confidential 6 12 Charge High voltage Power Supply PCB Circuit Diagram 1 4 ...
Страница 321: ...Confidential 6 13 Charge High voltage Power Supply PCB Circuit Diagram 2 4 ...
Страница 322: ...Confidential 6 14 Charge High voltage Power Supply PCB Circuit Diagram 3 4 ...
Страница 323: ...Confidential 6 15 Charge High voltage Power Supply PCB Circuit Diagram 4 4 ...
Страница 324: ...Confidential 6 16 Transfer High voltage Power Supply PCB Circuit Diagram 1 2 ...
Страница 325: ...Confidential 6 17 Transfer High voltage Power Supply PCB Circuit Diagram 2 2 ...
Страница 326: ...Confidential 6 18 Low voltage Power Supply PCB Circuit Diagram 100V ...
Страница 327: ...Confidential 6 19 Low voltage Power Supply PCB Circuit Diagram 200V ...