Ricoh Aficio MP201SPF Service Manual page 195

No.
Definition
Transfer roller leak error (negative electrode)
402 B
The feedback voltage of the
transfer roller is insufficient.
Main motor error
The main motor does not reach its
operation speed within 0.7 second.
500 B
Or, the main motor remains out of
its operation speed for 0.7 second
after reaching the operation speed.
Fusing thermistor open error
The fusing temperature remains
541 A
lower than the specified
temperature by 20 degrees Celsius.
Fusing temperature warm-up error
The fusing temperature rises 7
degrees or less in two seconds;
542 A
and this continues 5 times
consecutively. Or, the fusing
temperature is not detected within
25 or 35 seconds.
SM
Symptom
6-7
Possible Cause
Defective high voltage supply
board
Loose connection of the PCU
Incorrect installation of the
transfer unit or the separation
unit
Defective transfer roller
Overload
Defective main motor
Defective thermistor
Incorrect installation of the
thermistor
Defective power supply unit
Loose connectors
Defective thermistor
Incorrect installation of the
thermistor
Defective fusing lamp
Defective power supply unit
SC Tables
D115/D116