Description: Agitator Motor Error The agitator motor error is detected twice for 10 msec during the initialization at power-on or after the cover is closed.
Causes: • Disconnected or defective harness • Defective agitator motor
Remedy: 1. Check or replace the harness. 2. Replace the agitator motor.
Code: 490
Description: ITB (Image Transfer Belt) Unit Set Error The TM sensor does not detect the reflection from the ITB.
Causes: • No ITB unit in the machine • Dirty TM sensor
Remedy: 1. Check the installation of the ITB unit. 2. Clean the TM sensor.
Code: 500
Description: 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.)
Causes: • Disconnected or defective motor harness. • Motor slips due to excessive load
Remedy: 1. Check the harness from the transport/fusing motor. Replace it if necessary.
Code: 530
Description: 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.
Causes: • Disconnected or defective motor harness. • Defective LSU fan motor
Remedy: 1. Check or replace the motor harness. 2. Replace the LSU fan motor.
Code: 531
Description: Fusing 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.
Causes: • Disconnected or defective motor harness. • Defective LSU fan motor
Remedy: 1. Check or replace the motor harness. 2. Replace the fusing fan motor.
Code: 541
Description: Thermistor Error The thermistor output is less than 0°C for 7 seconds.
Remedy: Defective harness connection 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.