c652

[stacyrf]

Hello all, I have a C652 that I'm having a problem with the duplex. The paper comes into the duplexer and crashes before it gets to the first sensor. I have removed the covers and watched it, the duplex motor does not turn. I have installed that duplex on another machine and it works fine. I have replaced the driver board for the machine, no change. I can see that the motor gets a signal but just hums for about a second. I've tried new firmware. I've cursed at it. I ran screaming around the room (that helped a little). Any input would be appreciated. Thanks

[Mr Spock]

Re: c652

Replace the paper feed transport pwb. This is located rear of machine at the bottom behind the metal plate. This controls most of the paper transport motors and sensors.

[stacyrf]

Re: c652

Thanks Spock but I've already changed that out. Was the first thing I did.

[EarthKmTech]

Re: c652

does the duplex unit even connect to that board ? sorry don't have my manual at the moment.

I'd be guessing the prcb would be the next thing to try regardless after a thorough check for damaged wiring / connectors.

[NRTech]

Have you tried replacing the motor? They got a lot of heat from the fuser, also check the white gear that hangs down above the fuser, these wear and contribute to duplex issues.

[stacyrf]

Re: c652

Ok I swapped the prcb with a known good one, that did not help, and as far as the motor, I took the whole duplex and placed it on another machine and it worked fine.

[RRodgers]

Re: c652

Right above the there is a couple of white gears. check those.

stupid auto correct!!!!! there = Fuser (but you knew what I ment)

[stacyrf]

Re: c652

Those are brand new Rogers, The paper reverses, and crashes at the nip of the duplex. The motor on the duplex hums for a second but does not turn, like it's getting a signal to turn both ways if you know what I mean. I have swapped the duplex to another machine and it works fine there.

[stacyrf]

Re: c652

OK I got it. Some brilliant technician had put a C650 duplexer on my C652. I want to thank you guys for the responses and thank the super nice tech that shoved a day long monkey wrench into my machine.