bizhub C252 black copy

[backspace]

Any Idea

[ni311]

How many copies does the machine have? How many copies did you make with the actual black imaging unit? From the attachment, the black unit need to be replaced.

[backspace]

IU210K

There is new IU210K. I try change and transfer belt, HV1 and look for contact. change PWB-M and nothing. Always same.
Machine have about 150000 copies.

[copytechman]

Make sure that the drum gnd tab (top dead center near front of drum unit) is solidly contacting the frame. Had a c250 do stuff like that and had to reform the contact on the iu.

Regards!
A.