Question about Ricoh Aficio AP3800C Laser Printer

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Ricoh 3800c error code SC555

Upon boot up I am getting this error code SC555, power off and on.  Did that and still getting the same message. What is the error and how can it be fixed.

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  • ricohguy May 11, 2010

    is this machine just a printer or does it have a scanner on top too?



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Fuser related -- call tech to reset --- thermistors

Posted on May 05, 2009

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This means the pressure roler thermistor is out of position or defective. Take out the fuser, the thermistor is a little pad that sits against the lower roller. Check that it is clean and that it is touching the roller, this fault is telling you that the press roller heat lamp stayed active for 100 seconds and the code is produced to prevent damage to the machine. I hope this helps.

Posted on May 14, 2009


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Fusing lamp overheat error (rear)
555 A
After the fusing
temperature reaches the
target temperature, the
fusing lamp does not turn
off for 20 consecutive
?? Fusing thermistor defective or out of
?? Power supply board defective

u need a servise engineer to reset/fix it

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Upon boot up, it doesn't complete, screen goes black, then message firmware error appears.

  • Do an NVRAM reset. Press and hold 6, 7, 8 upon boot up.
  • Boot up printer without network cable, fax line and options, see if error comes up.
  • Get the exact error message.

If problem continues, printer will probably require service. Contact Lexmark technical support(under warranty) or local authorized service provider for professional assistance.

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Ricoh 3800c Error code sc555

SC 555 Pressure roller
fusing lamp

When the fusing unit is not
running in the Ready condition,
the pressure roller fusing lamp
keeps ON with full power for
100 consecutive seconds.

Replace the fusing unit.

Dec 01, 2008 | Ricoh Aficio AP3800C Laser Printer

1 Answer


SC555 is a fuser error there are a few possabilities that could have caused this..

1 You have a peice of paper trapped in the fuser unit(the heated rollers)
2 The fuser unit is not fully home
3 The thermistor/fuser lamp has a malfunction

Fusing unit SCs displayed on the operation
panel. The machine is disabled. The user
cannot reset the SC.
Turn the main power switch off
then on before entering SP mode.
Reset the SC (push "EXECUTE"
with SP5-810), then turn the main off then on again

Jun 26, 2008 | Ricoh Office Equipment & Supplies

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