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I have seen the acoustic foam on the registration solenoid get sticky and cause varying registration remove it clean plate good put a piece of electrical tape in its place

I know this sounds odd but it will work remove the affected dv units and shake the bleep out of them,, when you put them back in, the machine will start to add toner and copy quality will improve...

How about the mita dc 4090 dusting pig

I have had this same issue I also changaed the dvs and it did fix the problem but I also had this issue and ran drum refresh a few times the quality improved tremendously and have not had a recall on...

Yes the machine was unplugged and turned off before I started the cleaning. I did reload the firmware, but the issue happened before I loaded current firmware. A new symptom that I am now seeing is...

I removed all the drums and devs in the machine to vacuum them when I put everything back in, the machine throws a c7903 code. I swapped the magenta drum unit to a different spot still get the same...