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Replaced toner cart, turned the drive gears by hand, cleaned/reseated connectors and sensors. I've ordered a hopper unit for one of the machines and will see how that goes.

I'd start with a genuine Canon drum and toner.

Hi Has anyone else has problems with this. We've had 4 of these machines give the same error code intermittently. It's related to rotation error of the black toner bottle. The manual suggests...

Just joined the other day after Googling a for a solution, found it here. So thanks. Everyday's a school day.

I'd say the exit flag is missing still.

I work on both machines. They are in different markets, the 7000 being more heavy duty and should go longer between visits. If you already work on 5000 it's a similar layout though.

I agree about the software but just check the ITB wire connectors theres 4 of them in the area where the belt sits.