Samsung MultiXpress X4 Series Service Manual page 419

► Error Code
H2–6719 / H2–6720 / H2–6721 / H2–6722
► Error message
Finisher Failure: #H2-67xx. Check finisher
► Symptom
Front tamper unit failed to leave home position during initializing. (H2-6719)
Front tamper unit failed to reach home position during initializing. (H2-6720)
Front tamper unit failed to leave home position during printing. (H2-6721)
Front tamper unit failed to reach home position during printing. (H2-6722)
► Troubleshooting method
1) If there is jammed paper on the paper path, removing paper manually. Open and close finisher stapler door or jam
cover to check if finisher executes initialization process. If component still doesn't go back to home position and
error does not disappear, follow the instructions below:
2) Does the front jogger home sensor work well?
a) Make sure the sensor harness is connected well to the front jogger home sensor.
b) Make sure the sensor harness is connected well to the finisher main board.
c) Replace the front jogger home sensor.
d) Replace the finisher main board.
3) Does the front jogger motor work well?
a) Make sure the front jogger motor cable is connected well to the motor connector.
b) Make sure the front jogger motor cable is connected well to the finisher main board.
c) Replace the front jogger motor.
d) Replace the finisher main board.
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4. Troubleshooting
4-169