mp 6500 intermittent sc541

[kopikat]

Hi all,

I know if you have a few of this model you have come across this error.

Word from ricoh is replace thermistors, upgrade firmware, try the new brackets,
Anyone
(same as old, well make no difference) oh yeh i almost forgot increase cleaning web on timing

to keep the ufr "cleaner". got an answer cheers.

Eamo.

[TonerMunkeh]

Re: mp 6500 intermittent sc541

That is basically the answer. Update the thermistors to part numbers AW10 0131 and 0132 and fit the modified brackets and thermostats. That should sort you out.

[kopikat]

Re: mp 6500 intermittent sc541

Yeh done all that still. Comes in from time to time

Have about 50 of this model in the field

Never happens on some of them weird !!

Thanks for your reply.

[xordi69]

Re: mp 6500 intermittent sc541

put all timer settings to 60 minutes

[rthonpm]

Re: mp 6500 intermittent sc541

Poor voltage/amperage can also cause this. I had a few of these that weren't getting enough amps from the wall thanks to a few too many devices running from the same circuit.

Check your power...

[lydell1087]

Re: mp 6500 intermittent sc541

If are you using non OEM heat rollers this could cause a problem also.

[Max]

Re: mp 6500 intermittent sc541

paper in the power connector of fusing unit? or possibly power connector arcking out?

[NeoMatrix]

Re: mp 6500 intermittent sc541

Make sure that you have not accidentially swapped the Blue, Green or White plugs on the rear end of fuser unit. (easy to do after a rebuild)
If you do make this wiring mistake the fuser unit will turn on the wrong heater lamp at the wrong time and the thermistor heater timing will be in error.

There is also a mod bulletin for the thermistor mounting frames for the MP7001 similar.

[daveyt]

Re: mp 6500 intermittent sc541

We had the same problem, replaced the therms, and the mod bracket, even replaced the whole fuser. It usually happened on monday mornings, after machine had been in stand-by over the weekend. And usually in winter when it was cold. So we turned, "AOF"- off in user tools. This ment that it will never go into "power save". So no heat up failures. But then you have to set in SP mode,(I can't remember at the mo which ones) for the fuser to rotate at certain intervals, to prevent flat spots on the press roller.