Sc556 I have a Ricoh ap3800c showing Error Code SC556. I have switched on /off with no change Sandy Chamberlain in a previous answer says that there is a loose pressure roller thermistor, or a loose connection or replacing the fusing unit. I put a fusing unit from a working machine but the error remains. Can it be fixed?

This is most likely a fuser issue. If you have a spare laying around, I would suggest replacing your fuser. If you have a contract with Ricoh, I would suggest placing a service call for them to come out and look at the machine.

ressure roller fusing lamp temperature fluctuation The pressure roller temperature changes by ±20°C or more in one second. This occurs three times in one minute or two consecutive times.

Causes

• Loose connection of the pressure roller thermistor • Loose connection between the fusing unit and main frame

Remedy

1. Check if the fusing unit is properly set and connected to the main frame. 2. Check if the pressure roller thermistor connector is firmly connected. 3. Replace the fusing unit.




Ricoh Aficio AP3850C Error Codes
http://www.copytechnet.com/forums/ricoh-savin-gestetner-lanier/34525-ricoh-aficio-cl7000-sc-556-error-code.html

https://printcopy.info/?mod=erc&brand=Ricoh&model=SP210SU&code=SC556

https://printcopy.info/?l=en&mod=erc&brand=Ricoh&model=Aficio%20AP3850C&code=SC556

Assuming Ricoh

https://printcopy.info/?l=en&mod=erc&brand=Ricoh&model=Aficio%20AP3850C&code=SC556

Ricoh Aficio AP3850C Error Codes

Do what it says and call service.

And how about error code SC553?i try log in test mode and use program clear mermory.the machine still code SC553

SC 556 Pressure roller fusing lamp temperature fluctuation
The pressure roller
temperature changes by
±20°C or more in one second.
This occurs three times in one
minute or two consecutive
times.
• Loose connection of
the pressure roller
thermistor 1. Check if the fusing unit is properly set
and connected to the main frame.
• Loose connection 2. Check if the pressure roller thermistor
connector is firmly connected.
between the fusing
unit and main frame

3. Replace the fusing unit.