Originally Posted by
mckinley
there are a number of things that can cause CF20 - Dev drive clutches worn ( Colour ) / contaminated, gears in revolver unit, teeth broken on revolver unit ( usually due to toner not being fitted correctly ) , Dev worn / missing ( Colour ) , Colour Auto Toner Sensor reference patch ( grey ) stained ( must only ever be blown clean & never touched with anything or it's destroyed ) , revolver motor worn out , revolover motor driver board fault.... that's a few of the possible causes.
To be honest, if you were struggling to get the belt unit out, CF20 is going to be a pain for you.
We are condemning these on a regular basis now as the termination date is approaching & parts will be hard to come by.
Ps the paper is only jammed because the machine is throwing a call for service as the colour kicks in & that's stopping your machine in it's tracks.
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