Service manual

4. Alignment and Troubleshooting

Service Manual

ML-551x / 651x series

4-78

Samsung Electronics

 Code

H2-1760

H2-1A80

 Error message

Finisher Failure: #H2-1760. Check ﬁ nisher

Finisher Failure: #H2-1A80. Check ﬁ nisher

 Symptom / Cause

Stacker Unit is not working.

Stacker Level sensor, Stack Full sensor, Stacker Motor Harness Connection not well or damaged, Main Board

damaged.

 Troubleshooting method

1. Check the Main Board Harness Connection.

2. Check the Stacker Level Sensor’s Harness

Connection and Actuator’s operation & its Spring

behind the wall.

3. Check the Stacker Motor Harness Connection

and operation.

4. Check the Stack Full Sensor Connection and

operation.

5. If the same problem happens after checking 1~3,

Replace the Finisher main board.

6. If the same problem happens after checking 4,

replace the Finisher harnesses.