Appendix: Troubleshooting Guide
25
power-on or after the cover is closed.
Disconnected or defective harness
Defective agitator motor
1. Check or replace the harness.
2. Replace the agitator motor.
ITB (Image Transfer Belt) Unit Set Error
The TM sensor does not detect the reflection from the ITB.
490
No ITB unit in the machine
Dirty TM sensor
1. Check the installation of the ITB unit.
2. Clean the TM sensor.
SC 5xx (Motor and Fusing Error)
Transport/Fusing Motor Error
The LOCK signal error is detected when the EGB monitors the transport/fusing
motor state. (This monitoring is done immediately after power-on, when the motor
starts rotating, and immediately after the motor stops.)
500
Disconnected or defective motor harness.
Motor slips due to excessive load
1. Check the harness from the transport/fusing motor. Replace it if
necessary.
LSU Fan Motor Error
A LOCK signal is not detected for more than ten seconds while the motor START
signal is on and if this error occurs twice consecutively, this SC is issued.
530
Disconnected or defective motor harness.
Defective LSU fan motor
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