Ricoh 406460 service manual Issue this SC code and cannot be operated

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6. Troubleshooting

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

5411. 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.

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).

542-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.

•Defective or deformed thermistor

•Incorrect power supply input at the main power socket

1. Defective fusing lamp

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