Ricoh M080 Service Manual page 152

Service Call Conditions
Main motor error
The machine does not detect a main
motor lock signal within 700 ms after
the main motor started to rotate.
-or-
The machine detects a main motor lock
signal within 500 ms after the main
500 B
motor started to rotate, after that, the
main motor lock signal does not detect
within 200ms.
-or-
The machine does not detect a main
motor lock signal within 200 ms after
the main motor switched off.
Fusing thermistor error
The fusing temperature did not rise
higher than 20°C within 10 sec. after
the main motor switched off.
541 A
-or-
The fusing temperature was detected
lower than 0
power relay switched on.
Fusing temperature warm-up error
Just before reaching warm-up
542 A
temperature, the fusing temperature
did not rise above 80°C within 15.5 sec.
after the power relay switched on.
M080
o
C for over 1 sec. after the
2-4
Main motor defective
Mechanical overload on the
drive mechanism
Thermistor disconnected,
defective
Fusing lamp disconnected,
defective
Fuse blown
Power supply board defective
Fusing unit connected
improperly
Thermistor defective
Fusing lamp open
Fusing thermostat open
Power supply board Defective
Defective connection of the
fusing unit
SM Appendix