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ogaliandy
09-10-2012, 08:06 AM
Bizhub c 220 showing error p 21 and the yellow colour giving half blank even after changing the yellow imaging unit and yellow drum, and after cleaning the PH unit and IDC sensor, has anyone seen such a problem

kingarthur
09-10-2012, 09:03 AM
i'd swap the yellow ph unit with the one next to it & see what happens, but i'd suspect something blocking the ph unit

EarthKmTech
09-10-2012, 09:59 AM
i'd swap the yellow ph unit with the one next to it & see what happens, but i'd suspect something blocking the ph unit

cant do that, c220/280/360 uses a one piece laser unit.

there have been issues with HV boards on this series machine too, more diagnosis and a print sample is required to make an educated guess.

AjitN
09-11-2012, 05:11 AM
Bizhub c 220 showing error p 21 and the yellow colour giving half blank even after changing the yellow imaging unit and yellow drum, and after cleaning the PH unit and IDC sensor, has anyone seen such a problem

PH Unit Glass Cleanning rod has come out from Cleanning mechanism. You can feel if rod is very loose compare to other three colors.

Hope this helps

JustManuals
09-11-2012, 03:45 PM
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ogaliandy
09-12-2012, 01:27 PM
Hi,

Thanks for the feedback, i will scan the print out and attach,

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