Color Qube 9201, 94-354 fault

[Exok]

Finally solved this one after many hours of troubleshooting.

The code is "Drum Belt Slipping" fault.

First I inspected the drum drive belt. It was the old black belt and it was frayed. I removed the belt, cleaned the drum pulley and the motor. I cleaned the new green belt and installed it. The machine would go through the whole warm up, print the 2 cleaning sheets then jam when printing the config sheet. When you checked the fault code, you would get no jam code just the 94-354 fault.

The Edoc has you run a diagnostic program in service mode (704 or something, i dont recall the number off the top of my head). The result was "Drum encoder out of range". This leads you to the drum encoder or the drum drive board.

Replaced the drum encoder. Same result. Replaced the drum drive pwb, same result.

Replaced the drum drive motor, same result.

At this point I was running out of options. The edoc also suggested the power supply and IME pwb. I ordered both.

Installed the power supply and TADA! That was it. The machine is now running like a charm. That was the last thing I suspected but it was easier to get to than the IME.

[seansbar]

Re: Color Qube 9201, 94-354 fault

Interesting.

I had a 9303 that was "printing slow." Sure enough, I get there and its slow. Prints 2 pages, ejects them, runs, prints 2 pages, ejects....
Look in history there is one 94-354 and its from a week ago. Now I was there 2 weeks ago for something else and had the rear cover off, and nothing was out of order and it had a green belt, so I dismissed the belt. I run threw the edoc, and some eureka hits, nothing is making a difference. But, at my wits end, I finally looked at the belt and saw it was crumbling unlike any of the black ones have. cleaned it up and new belt. Now its running at top speed.

Interesting.