sorry I mis spoke, you have to go in service mode and check the retraction sensor, not the motor
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According to the book, if the retraction/engagement mechanism wasn't moving properly you'd be getting C2152 codes all over the place. Its the code that box throws when the retraction sensor doesnt get triggered in a timely manner. Not to say something else isn't broken tho and allowing the "mechanism" and sensor to work properly but no actual engagement of the 3 colour 1st transfer rollers. (assumes alot!)
Regards! A
Edit: also running say 20 black copies then 20 full colour copies (not auto colour) and back and forth like that will force the machine to engage/retract colour transfer rollers. If you don't get any c2152 codes after doing that a bunch of times then IMHO its pretty safe to say the retraction sensor (and associated mechanisms) are indeed working and you MAY have a different issue.Comment
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I'm thinking a motor is out or not running. All image units have been swapped out. 3 different transfer belts have been put in. All with the same issue of not printing color.Comment
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Again according to the book there are c-codes for drum and dev drive motors on that model, however a quick inspection of the book leaves me to wonder if you have an led head failure of some sort since I didnt on quick inspection find any sort of failure codes for them. Possibly a faulty icp or something that controls the 3 colour led heads? I don't know for sure but if the machines only throwing P-codes and no C-codes then I'd maybe start there somehow.
Regards!
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