Service manual

4. Alignment and Troubleshooting

Service Manual

ML-551x / 651x series

4-75

Samsung Electronics

 Code

H2-1730

H2-1731

 Error message

Finisher Failure: #H2-1730. Check ﬁ nisher

Finisher Failure: #H2-1731. Check ﬁ nisher

 Symptom / Cause

Support Finger (Extension Tray) is not working well.

Support Finger Home Sensor, Support Finger Motor Harness Connection not well or damaged, Main Board

damaged

 Troubleshooting method

1. Check the Main Board Harness Connection.

2. Check the Finisher Support Finger Home

Sensor’s Harness Connection.

3. Check the Finisher Support Finger Motor’s

Harness Connection and operation.

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

Replace the Finisher main board.

5. If the same problem happens after checking 4,

Replace the Finisher harnesses.