Samsung ML-451 Series Service Manual page 180

4. Alignment and Troubleshooting
► Error Code
H2–1A50
► Error message
Error: #H2-1A50 / Finisher Failure: #H2-1A50. Check finisher
► Symptom
Interface Cable Connection not well or Interface Cable(Harness) damaged, Main Board damaged.
► Troubleshooting method
1) Check if Mounting Part is not damaged
- Male part in Finisher
- Female part in IOT
2) Check the Main Board Harness Connection.
3) If the same problem happens after checking 1~2, Replace the Finisher main board.
4) If the same problem happens after checking 3, Replace the Finisher harnesses.
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