Samsung MultiXpress K4 Series, Service Manual

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4. Troubleshooting
► Error Code
H2–6511 / H2–6512
► Error message
Finisher Failure: #H2-651x. Check finisher. Call for service if the problem persists
► Symptom
Stacker Motor fault has occurred during initializing. (H2-6511)
Stacker Motor Fault has occurred during printing. (H2-6512)
► Troubleshooting method
1) If there is jammed paper on the Main Tray, removing paper manually. Open and close finisher stapler door or jam
cover to check if finisher executes initialization process. If Main Tray still doesn’t go back to home position and
error does not disappear, follow the instructions below:
2) Does main tray position sensor work well?
a) Make sure main tray position sensor cable is connected well to the sensor connector.
b) Make sure main tray position sensor cable is connected well to the main board connector.
c) Check the main tray position sensor.
d) Check the finisher main board.
3) Does finisher Main Tray motor(Stacker motor) work well?
a) Make sure finisher Main Tray motor cable is connected well to the motor connector.
b) Make sure finisher Main Tray motor cable is connected well to the main board connector.
c) Replace the finisher Main Tray motor.
d) If you need, replace the finisher main board.
4) Does finisher Main Tray motor gear set work well?
a) Make sure gear set can rotate smoothly.
b) Make sure each gear is not broken.
c) Replace the gear set. ( JC81-07637A / JC81-07636A )
5) Check if any debris existed. Please make sure to remove any debris.
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