Kyocera PE-MF2 Service Manual page 144

3. Appendix: Troubleshooting Guide
Color drum motor error
The LOCK signal error is detected when the EGB monitors the color drum motor state. (This
monitoring is done immediately after power-on, when the motor starts rotating, and immediately
after the motor stops.)
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• Disconnected or defective motor harness.
• Motor slips due to excessive load
1. Check the harness from the color drum motor. Replace it if necessary.
3
SC 4xx (Image Transfer and Transfer Error)
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
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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.
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