Samsung CLX-8640 series Service Manual page 368

4. Troubleshooting
• If the motor operation is abnormal, check the motor connection. If the connection is OK, replace the
motor(JC93–00301A) from the duplex unit.
4) Check if the duplex jam sensor actuator is assembled correctly. If the photo interruptor is defective, replace
it(0604–001415).
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