3800C

[2plicata]

Hello these days I have on the verso of my copies some traces on the paper, like black or oil...

any idea ?

I need also to do too many times a manual adjustment for the shifting of color

thanks

[Cipher]

Fuser oil has been known to leak over the black PCU which can make things pretty messy.
The colour reg problem is probably related to ITB requiring a service but leaking oil would also cause a problem there as well.

[2plicata]

solution could be changing fuser oil ... ?

[Cipher]

You need to confirm if it is a oil leak or not by taking out the fuser, black PCU and ITB unit.

If there's oil everywhere it's a clean up and damage assessment job.

[2plicata]

I change black PCU, it works Thanks