Hi guys

I have a C6000 in the field that appears to have a light image on the front side of the image. It is mostly noticeable in black, but I guess if you try hard enough you could see it in other colours. The customer does a lot of 12x18/13x19 so it has become a problem that they cannot work around anymore.

Within the last 3 months there was a total PM done on the machine - this includes:

4 drums
P-kit refurb
Dev restarts
ITB refurb (primary roller units, secondary inner roller, belt, etc)
Fuser PM (both)
Secondary outer transfer roller replaced
Primary corona units replaced

About 2 months ago, the black developer unexpectedly failed...the machine was printing a lot of black only and it appeared to have exhausted itself. We replaced with new dev, all seemed okay density-wise.

Still seems to have a light section at the front.

I have swapped lasers without the cyan unit but no change.

See attached...

The PG5 black was at max density! In person it looks pretty chalky to me.

C6000 CQ.pdf

Any ideas?

Cheers