Samsung ML-451 Series Service Manual page 197

► Error Code
H2-4A32
H2-4A35
H2-4A38
H2-4A3C
► Error message
Mailbox bin 1 full / Too much paper in bin 1. Remove printed paper
Mailbox bin 2 full / Too much paper in bin 2. Remove printed paper
Mailbox bin 3 full / Too much paper in bin 3. Remove printed paper
Mailbox bin 4 full / Too much paper in bin 4. Remove printed paper
► Symptom
Mailbox Full detecting sensor damaged, harness connection loose or damaged, Main Board is damaged.
► Troubleshooting method
1) Check the Bin's Full Sensor Connection and Actuator's operation.
2) Check Main Board Harness connection.
3) If the same problem happens after checking 1~2, replace the mailbox main board.
4) If the same problem happens after checking 3, replace the mailbox harnesses.
► Error Code
H2-4A50
► Error message
Error: #H2-4A50 / Mainbox Failure: #H2-4A50. Check mailbox
► Symptom
A communication problem has occurred at mailbox.
► Troubleshooting method
1) Check the connection between machine and mailbox.
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4. Alignment and Troubleshooting
4-96