Samsung MULTIXPRESS CLX-9251 Series Service Manual page 257

Check the motor operation.
a) If the motor is not operational,
• Check the signal and power with the DVM.
• If the checked result is normal, replace the motor(JC31-00123B).
• If the checked result is abnormal, check the following.
- If 24V power is not generated, replace the SMPS board
-
If the control signal is abnormal, replace the main board(JC92–02429A).
b) If the motor is operational,
• Check the Pin Num 8. If the value is abnormal, replace the main board. If the value is normal, replace
the harness.
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(JC44-00100A (220V) / JC44-00093A
4. Troubleshooting
(110V)).
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