4. Troubleshooting
4.7.13. Stain on the paper back side
A. Typical faulty images
B. Troubleshooting procedure
Step
Section
Check item
Result Action
1
Transfer Roller Assy
Is the transfer roller dirty or worn out?
Yes
Clean or replace the Transfer roller
Assembly.
2
Is there any stain caused by a poor
cleaning, etc. on the transfer belt?
Yes
Clean the transfer belt.
If the problem persists, replace ITB unit.
(Refer to 3.2.2.6.)
3
ITB Unit
Is the transfer belt cleaning blade in
proper contact with the transfer belt?
Yes
Take off the transfer belt and check if
the transfer belt cleaning blade pressure
spring and the pressure hook are installed
properly.
(Refer to 3.2.2.6.)
4
Are the fuser belt and pressure roller
dirty?
Yes
Clean the fuser belt and pressure roller.
5
Fuser Unit
Check the pressure roller surface is
damaged or scratched.
Yes
Replace Fuser unit.
(Refer to 3.2.2.5.)
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