I have a NP6412 that is printing blank copies. The drum only has 1000 copies on it but is 5 years old. It was given to a friend and I don't know the origin of the machine. I think it's either the drum or the exposure lamp. Any body have any suggestions before I spend money on a new drum?
If copies are totally blank then it most likely is not the drum. It is transfer to the drum. A charge wire is most likely the cause of these type symptoms. Not easy to do if you never have before. Exposure lamps being bad give a solid black copy symptom so I am pretty sure thats not it either. You have a charge corona inside that is probably what your issue is. If you know someone who is a tech they might restring it for you as a favor or take the unit to a local dealer to see how much they would charge to restring.
Hope that helps
TankMurdock
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