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alfpanasonic
07-12-2007, 09:36 PM
I have a bizhub c252 that make yellow copies (background) every cycle of copies. The original have all colors possible.

In test print, in gradation adjust is the same.

Any idea?

ebm
07-13-2007, 01:45 AM
Does the image show wavy lines along with the background? Had a machine with a wavy magenta background pattern. Needed to replace the HV1 assembly to repair. :eek: Hope this helps. :)

alfpanasonic
07-13-2007, 09:43 AM
No, is a solid yellow background.
I'm going to chech HV1.

Thanks

alfpanasonic
07-18-2007, 08:25 PM
it's laser yellow

Thank's everyone

Scott_Lewis
07-19-2007, 03:14 AM
it's laser yellow

Thank's everyone

Thanks for letting us know what the solution was.

Are you saying the write unit caused this somehow?

alfpanasonic
07-19-2007, 07:20 PM
Yes
I change the laser yellow with the magenta and the background yellow change to magenta.

In this moment I'm waiting for the laser unit (4 laser, because i must change all the lasers

alfpanasonic
07-27-2007, 06:49 PM
Today (27/6/2007) we change laser's and was everything ok :D

TonerMonkey
08-04-2007, 02:59 AM
A bit late on this one but I've had this before - sorry Alf I'll try and be quicker next time !!!!!!:)

Bizhub
08-05-2007, 10:27 AM
I would only fit one write unit and keep the other three for spares.
Dont replace all four like KM recommend, you just don't need to.

Juggy
04-01-2008, 07:58 AM
Hi,
I did face the same problem. The machine will produce all the colors properly with Full edge to edge Yellow background. The problem was PWB-A. Try and swop the PWB-A with a working machine and isolate the problem. Good luck

alfpanasonic
04-01-2008, 06:23 PM
This problem is solved?

Anything else?

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