Customer says the machine will power off by itself. I have checked and disable auto power off setting. Customer says this is not the problem.

I have not seen this happen, but customer says machine will automatically throw the main switch to off position at random times through out the day.

I suspect this is probably a relay problem, but the main switch actually throwing itself to off position?????

Any input appreciated from any Ricoh/ Savin techs out there.

TIA