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: 1. Check the harness connection of the thermistor. 2. Replace the fusing unit. • Execute "Engine Maintenance Menu" to recover the printer after completing the recovery procedure. Otherwise, the printer continues to issue this SC code and cannot be operated.
Code: 542
Description: Print Ready Temperature Error The heating roller temperature increase during a set time is not correct. The fusing temperature does not reach the print ready temperature within a set time after the fusing lamp has turned on.
Causes: Defective thermistor. Incorrect power supply input at the main power socket. Defective fusing lamp.
Remedy: 1. Check the voltage of the wall outlet. 2. Replace the fusing unit 3. Replace the fusing lamp. • Execute "Engine Maintenance Menu" to recover the printer after completing the recovery procedure. Otherwise, the printer continues to issue this SC code and cannot be operated.