RICOH MP6001 542 AND 552

[irokkas]

Hello to everyone.At first there was a 542 code,so i check the thermostats and the thermistors and i notice that the lamp was dead.I changed the lamp and after that i had a 552 code.I changed the thermistors but the machine keeps giving me 552.I have change the hot roller and the firmwares are up to date.If anyone have a thought i would like to hear it.Thanks in advance for your responses.

[GIUBOSS]

check the two thermostats near the thermistors, usually they must be lightly beaten to make them pick up again

[fshead]

I would also change them if they are the old style wide ones..fairly cheap to buy.

[irokkas]

change the thermostats and there was no result.Tried a fuser unit from another copier and it worked fine.I checked the new lamp and was faulty!!!Changed it and everything works fine.Thank you for your suggestions.

[MIGUELMARCHENA]

well look at youthis has happened to me several times although not in this model,
I have not worked it, and in some occasions, I have done everything, and nothing some things done check the current of the site, the shot is wrong.
clear the fuser counters, all .
5810 and 7807
scrape contacts, all.I hope someone serves them
Cheers

[eccelobo]

Sometimes there is low voltage and causes these codes. Check the wall tension.