hello guys recently i have been to customers with this model machine that says when they make copies they get parts of the copies missing, upon inspection of the drum i see some light film of toner on the drum after warm up, its not on the entire drum its just like a part off the drum that i see the toner, it seems to me that the drum is not being charged/discharged properly after warm up, i am not sure what to think could cause it at this point,i even got another drum and tried it but, after a couple 100+ of copies it seems to come back, could this be High voltage Pwb? hopfully someone has this experience or a possible solution, godblesshave a great day.
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