1-25
Confidential
■
Poor fixing
■
Completely blank
User Check
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
Step
Cause
Check
Result
Remedy
1
High pressure of
pressure roller in
the fuser unit
Is the problem solved by
changing the position of
the pressure roller?
Yes
Change the position of the
pressure roller.
(Refer to
)
2
Fuser unit failure
Is the problem solved
after replacing the fuser
unit?
Yes
Replace the fuser unit.
3
Low-voltage
power supply
PCB failure
Is the problem solved
after replacing the PS
PCB unit?
Yes
Replace the PS PCB unit.
4
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
5
Main PCB failure
Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
User Check
• Replace the drum unit with a new one.
• Replace the toner cartridge with a new one.
Step
Cause
Check
Result
Remedy
1
Developing bias
voltage
conduction
failure
Are the electrodes on
the drum unit and
machine body dirty?
Yes
Clean both electrodes.
(Refer to
)
2
Scanner harness
of the laser unit
connection
failure
Is the scanner harness
of the laser unit
connected securely?
No
Reconnect the scanner
harness of the laser unit.
3
Laser unit failure
Is the problem solved
after replacing the laser
unit?
Yes
Replace the laser unit.
4
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
5
Main PCB failure
Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
Содержание HL-2150N
Страница 56: ...2 2 Confidential 2 PERIODICAL PEPLACEMENT PARTS There are no parts to be replaced periodically ...
Страница 97: ...3 41 Confidential 8 19 FILTER ASSY 1 Remove the Filter ASSY from the Main body Fig 3 35 Filter ASSY ...
Страница 127: ...3 71 Confidential 8 30 RUBBER FOOT 1 Remove the two Rubber feet from the Main body Fig 3 66 Rubber foot ...
Страница 142: ...4 10 Confidential Serial label Drive sub ASSY Drive sub ASSY Serial label Serial label Laser unit 2 to 10mm ...
Страница 167: ...6 5 Confidential High voltage Power Supply PCB Circuit Diagram ...
Страница 168: ...6 6 Confidential Low voltage Power Supply PCB Circuit Diagram 100V ...
Страница 169: ...6 7 Confidential Low voltage Power Supply PCB Circuit Diagram 200V ...
Страница 170: ...6 8 Confidential Wiring Diagram ...