MPC 4500

[PoonKing5000]

Could anyone give me the part numbers for the 2 sensors inside the machine that get knocked out of place that read the SC549 code?

Thanks
Andy

[zyqwiz]

The modified number is AW020190 (To further ensure the sensor stays fixed in place)

Anyone sensible would make the gap wider so it doesn't get knocked off in the first place!

[Copierdocisleofman]

I was getting alot of these errors on this machine, they were also complaining of jamming in the fuser but there were no jams logged in the SMC.
The problem was with the bridge unit internal tray cover magnets not being strong enough and when the soleniod was firing it was knocking the cover open for a split second and causing a jam but there was no jam logged.
I changed the magnets and the jamming problem and the SC code went away.
Probably my customer being overly heavy handed taking the fuser in and out!!! Something to look into though.

[CableGuy]

	Quote:			Originally Posted by Copierdocisleofman
	I was getting alot of these errors on this machine, they were also complaining of jamming in the fuser but there were no jams logged in the SMC. The problem was with the bridge unit internal tray cover magnets not being strong enough and when the soleniod was firing it was knocking the cover open for a split second and causing a jam but there was no jam logged. I changed the magnets and the jamming problem and the SC code went away. Probably my customer being overly heavy handed taking the fuser in and out!!! Something to look into though.

I have seen this previously. Watched a customer shove their hand in the output tray to pick up copies and knock the bidge unit and the machine jammed. No jam logged, but for a fraction of a second it showed 'cover open'. I also believe this leads to the SC548/9 codes when the cutomers handle the fuser unit incorrectly, whilst removing the paper. I only have this problem on machines with the finishing options on, i.e. bridge unit.

[zyqwiz]

On the bridge unit, its the switches that are dodgy - 2x AW500023

[Copierdocisleofman]

Never had a dodgy sensor on one of these machines pretty sure they have modified the magnet catches.

[Rtech]

	Quote:			Originally Posted by knobby
	Anyone seeing sc 548 and 549 frequently on mpc 4500s seem to be getting a lot only on a few machines ... Cheers Gaz

try to change the ferrite roller

[Jonesy-5150]

Some time ago, I noticed a thread about using a fusing unit for SPC811DN color printer in a MPC 4500. Apparently you need to switch a wire in the connector to get it to work in the MPC 4500. Anyone out there have this info?

[abenford]

There are 2 sensors that when the fuser is pushed back into the copier the fuser hits them These 2 sensors have been modified so that they are wider apart. I had 6 copiers with sc548 and sc549 i changed the sensors and heh presto all fixed

[mabawser]

	Quote:			Originally Posted by knobby
	Anyone seeing sc 548 and 549 frequently on mpc 4500s seem to be getting a lot only on a few machines ... Cheers Gaz

Intermittent SC549 code can be caused by a broken gear in the fuser drive section. Unfortunatly since I heard about the write up on the fault I've not been back to this fault but it might be worth a check. It only effects mpc3500/4500 and not the 2500/300 type machines.

Any feed back on this would be helpful as, as I said I've not done it yet.

cheers(see attachment)