MPC5000 WITH SC548

[CraiginAK]

Tried replacing the sensors that monitor rotation of fuser, IH board, and fuser/exit unit drive motor. Going to try IOB board today. Before this code for bit of history we replaced the IH unit behind the fuser for a SC582, not sure if relevant but figured I mention. Went about a month after fixing SC582 till getting the SC548's. It will reset and run about half a day. Any suggestions ?

[sandmanmac]

Re: MPC5000 WITH SC548

This Parts & Service Manual can now be purchased for $14.77 and downloaded immediately from:

A sight for sore eyes! Who'd have thunk I'd miss this as much as I did?
Welcome back Paul!

[CraiginAK]

Re: MPC5000 WITH SC548

I have all the manuals so that definitely won't help unless I print it out place it under copier and start it on fire. Come on I know you guys can help, I have faith.

[imaginemoko]

Re: MPC5000 WITH SC548

have you try sir to replce the fuser unit itself? i assume that you have stable power source from a volatge regulator.

[Gamut]

Re: MPC5000 WITH SC548

There was a Firmware update for this.

Also machine side wiring loom going to fuser can wear causing connection issues.

[Oze]

Re: MPC5000 WITH SC548

There was a Firmware update for this.

Also machine side wiring loom going to fuser can wear causing connection issues.

Agreed Gamut....and maybe swapping in a new fuser for testing couldn't hurt...you can modify a printer unit to keep it cheap.

[CraiginAK]

Re: MPC5000 WITH SC548

So did try a fuser same code was back in few hours. What I didn't know was looks like nobody has ever updated firmware so will try that, but why it took 5years for it to finally become problem don't know but will try anyway.

[1nevster]

Re: MPC5000 WITH SC548

Also note that the plastic retaining arms front and back that hold the fuser in, wear, causing the fuser not to be held "home" properly.

[ewizzy]

Re: MPC5000 WITH SC548

Tried replacing the sensors that monitor rotation of fuser, IH board, and fuser/exit unit drive motor. Going to try IOB board today. Before this code for bit of history we replaced the IH unit behind the fuser for a SC582, not sure if relevant but figured I mention. Went about a month after fixing SC582 till getting the SC548's. It will reset and run about half a day. Any suggestions ?

Does the machine try to release the lpr pressure a couple of times after copying? You can hear the lpr gearing cranking in and out usually once after copying ends. If it does it a couple of times after finishing copying, then its likely that the sensor bracket on the machine for the lpr position sensor is bent. It only needs to be 1mm out of position and it will cause sc548.
It usually happens when customers push the fuser in after removing jams. Somehow customers don't seem to be able to push fusers or doors evenly.

Hope this helps

[imaginemoko]

Re: MPC5000 WITH SC548

best of luck Sir. see attachment.

[slimslob]

Re: MPC5000 WITH SC548

Check for a bushing in the exit section stuck to the shaft. This usually causes an exit jam when the gear round out and the roller does not turn. If the gear does not round out, it will stall the fusing/exit motor and give SC 548.

[CraiginAK]

Re: MPC5000 WITH SC548

Thanks for all the good information going go and check all that stuff. I knew you guys would come up with some good stuff !