I received a call from a customer for intermittent blank pages after a drum install. I thought maybe the contacts needed cleaning or possibly not making contact. I went out there cleaned all the contacts and made sure they were not arcing. I noticed when the MFP prints out blank pages it makes a noise on the bottom right twords the back as it prints out the blank pages. This issue did not happen until they installed the new drum unit. Could this issue be a defective drum unit? Or could it be something in the drive section?
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