Re: Sharp 5070 c4-20, f2-49
Hi
I've had 3 CR4 machines now with C4-20 and in all cases I discovered the Black developer unit to be seized or very tight. Take the front cover off the developer unit ( it's always been the black dev unit for me but suggest checking all), You will see a bearing on the end of the MG roller situated in a white plastic collar. Remove this and clean / replace as required. Depending on damage caused, you may need to replace the MG roller too. Some of you may decide to replace entire unit and of course, this is your call.
Toner or developer I believe is falling through a vent situated directly above this bearing and working in to the bearing. The metalic quality is then causing extreme wear to end of MG roller which if left will eventually sieze the unit thus causing C4-20.
I hope this helps
3.jpg 6.jpg 4.jpg 5.jpg
Hi
I've had 3 CR4 machines now with C4-20 and in all cases I discovered the Black developer unit to be seized or very tight. Take the front cover off the developer unit ( it's always been the black dev unit for me but suggest checking all), You will see a bearing on the end of the MG roller situated in a white plastic collar. Remove this and clean / replace as required. Depending on damage caused, you may need to replace the MG roller too. Some of you may decide to replace entire unit and of course, this is your call.
Toner or developer I believe is falling through a vent situated directly above this bearing and working in to the bearing. The metalic quality is then causing extreme wear to end of MG roller which if left will eventually sieze the unit thus causing C4-20.
I hope this helps
3.jpg 6.jpg 4.jpg 5.jpg
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