Hi Bill 98261,
Thank you for using the Support Forum.Please take a look at the Imaging unit installation instructions found under documentation on the support page for your machine. Please consider contacting your support centre for further assistance.
See photo 1. The spacing indicates that it may caused by toner on one of the rollers in the imaging unit. Photo 2 shows the magenta toner on the transfer belt. The left side in this view corresponds to the right side of the printed page. Photo 3 shows toner debris from all colors behind the imaging unit. I don't know if this amount of toner debris is normal.
Do I have any other option than to replace the imaging unit? I know the imaging unit is intended to be replaced and not serviced. I would be willing to give it a go if I had teardown & reassembly instructions, since I have nothing to lose but time. I have a toner vacuum and I will vacuum out the area behind the imaging unit before installing a repaired or replaced imaging unit.
Any thoughts or guidance appreciated.