[Error Code] Canon ir adv c 5051 e020-0201

[doktor]

I have a big problem which I can't solve. The error occurs when printing large color areas.
I changed:
-Developing Assembly
-Patch Sensor Unit
-Drum
-Toner
-Toner Buffer Unit
-Patt. read shutter ASS'Y
Any help welcome, because I ran out of ideas.

[bobburnsreb]

Re: Canon ir adv c 5051 e020-0201

Maybe the developer drive as described in the attached.