3-69
Confidential
■ Dirt on the back of paper
<User Check>
- Replace the waste toner box with a new one.
- Replace the belt unit with a new one.
Step Cause Check
Result
Remedy
1 Fuser unit dirty Is the pressure roller
dirty?
Yes Print approximate 10
pages.
Is the fuser unit dirty? No Replace the fuser unit.
2 Dirt in the paper
feed system
Is the paper tray or feed
system on the drum unit
dirty with toner?
Yes Wipe dirt off.
3 Waste toner
sensor failure
Is the waste toner box
full of toner?
Yes Replace the waste toner
sensor.
4 HVPS control PCB
failure
Is the problem solved
after replacing the HVPS
control PCB ASSY?
Yes Replace the HVPS
control PCB ASSY.
5 High-voltage power
supply PCB failure
Is the problem solved
after replacing the
high-voltage power
supply PCB ASSY?
Yes Replace the
high-voltage power
supply PCB ASSY.
To Next Page
Loading...
