Greetings all, I have this problem: the RICOH MP C3000 Multifunction is a problem in the printing and copying features vertical bands blurry, it seems that the original glass stained with oil, I changed the drum unit black belt of transfer, the unit of the merger, (I thought it would be a problem of condensation on damp rooms, can it be?, and how can you fix?) and the transfer roller, but the problem is not resolved, has anyone had experience this defect?
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