Hi there. I have a Charis Pro c5100 which keeps backing up waste toner under the cleaning brush every 2000-3000 pages. The waste auger is clear, there is no blockage in the waste system of any kind, the cleaning unit is turning ok yet the seal below the brush fills up and drops on the prints.
This only started about 2 months ago & the machine is 16 months old- been ok till now. All PM items are within life, firmware is up to date & Ricoh haven't heard of any problem.
The cleaning unit is driven by the same motor as the PTR and the paper transport which we have ruled out as there is no jitter or print quality defect. The prints are not overtoned. There are no SC codes logged.
Any help appreciated.
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