1. Check the harness from the color drum motor. Replace it if necessary.
SC 4xx (Image Transfer and Transfer Error)
400
Process Control Error
This SC is issued if the process control adjustment fails 5 times consecutively after AIO
replacement.
• Defective contact at the terminal between the machine and AIO.
• Dirty TM sensor
1. Check the contact of the terminal and re-install the AIO.
2. Clean the TM sensor.
445
ITB (Image Transfer Belt) Unit: Home Position Error
The ITB contact sensor does not detect the home position of the ITB for 5 seconds after the ITB
unit initialization has been done.
ITB (Image Transfer Belt) Unit: Contact Position Error
The ITB contact sensor does not detect the contact position of the ITB for 5 seconds after the ITB
unit has moved to the contact position.
ITB (Image Transfer Belt) Unit: No-contact Position Error
The ITB contact sensor does not detect the home position of the ITB for 5 seconds after the ITB
unit has moved to no-contact position.
• Defective ITB contact motor
• Defective ITB contact sensor
• Defective ITB unit
1. Replace the ITB contact motor.
2. Replace the ITB contact sensor.
3. Replace the ITB unit.
480
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.
• Disconnected or defective harness
4. Troubleshooting
104
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