Ricoh M118, Service Manual

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Service Call Conditions
M118/M119 6-4 SM

Overload of

Torque load overload

Defective main motor

Disconnect or defective motor harness
1. Turn the machine's main power off, and then on.
2. Check or replace the main motor if the torque load is normal.
3. Replace the motor harness.
530
Exhaust fun Error
The FAN lock signal – High for 10 seconds, after the fan motor started to rotate.

Disconnected or defective motor harness.
1. Turn the machine's main power off, and then on.
541
Fuser thermistor error
The thermistor output is less than 0°C for 5 seconds after the fusing lamp turns
ON.

Disconnected or defective thermistor

Disconnected or defective fusing lamp
1. Check the harness connection of the thermistor.
2. Replace the fusing unit.

Execute "Engine Maintenance Menu" to recover the machine after
completing the recovery procedure. Otherwise, the machine continues to

issue this SC code and cannot be operated.
542
Fuser reload error
This SC is issued if one of following conditions occurs:
The fusing temperature rises 8°C or less in 1.5 seconds; and this continues 5
times consecutively.
-or-
The fusing temperature has not reached 45°C within 9 seconds (after the fusing
lamp comes ON while the machine is warming-up).
-or-
The fusing unit does not attain reload temperature within 35 s. (normal
temperature) or 65 s (lower temperature – the thermistor output is less than 18°C)
after the fusing temperature control starts.