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jrf
03-21-2011, 07:22 PM
9002This C253 started banding and then produced complete background, I have attached a sample. I have changed image units, black print unit, hv board and PWB assembly but still no luck. I would appreciate any help.
Thank you

fishleg
03-21-2011, 07:27 PM
Curious that a test print out the machine or copy ?

jrf
03-21-2011, 07:34 PM
This is a test print fishleg

jonw
03-21-2011, 08:04 PM
what happens when you do a gradation adlustment ?

acusso1234
03-21-2011, 08:25 PM
Did you tried a inizialization and a complete calibration?

jrf
03-22-2011, 10:51 AM
can not complete gradiation because it gives a test pattern scanning error

Zeldaman
03-22-2011, 12:55 PM
Hi there!
I think acusso is right. Your sample looks like the older color-bizhubs when there was made a mistake in the installation-procedure.
try to make a complete set-up all after the installationmanual.
Greetings....

Mercutio Norway
03-22-2011, 12:55 PM
I've seen this before, experienced it on a Bizhub C353.
Try change the Printer Control Board. If my memory isn't playing me a trick I had some success with that one.

Best of luck!

After careful re-thinking... My memory was playing a trick on me.
Soz!

jrf
03-22-2011, 07:15 PM
Ya waiting on boards now, ill let you know the solution as soon as i sort it.
Thanks for help

jrf
03-29-2011, 06:42 PM
Just to update you on this one, The MFPB board was the cause of problem,
Thanks for all your help

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