• Defective agitator motor
1. Check or replace the harness.
2. Replace the agitator motor.
490
ITB (Image Transfer Belt) Unit Set Error
The TM sensor does not detect the reflection from the ITB.
• 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)
500
Main Motor Error
The LOCK signal error is detected when the EGB monitors the main motor state. (This monitoring
is done immediately after power-on, when the motor starts rotating, and immediately after the
motor stops.)
• Disconnected or defective motor harness.
• Motor slips due to excessive load
1. Check the harness from the main motor. Replace it if necessary.
530
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.
• Disconnected or defective motor harness.
• Defective LSU fan motor
1. Check or replace the motor harness.
2. Replace the LSU fan motor.
531
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.
Service Call Conditions
105
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