Service manual

4. Alignment and Troubleshooting
Service Manual
ML-551x / 651x series
4-88
Samsung Electronics
 Code
H2-4102
 Error message
Paper jam inside of mailbox. Remove paper
 Symptom / Cause
Initialization started with Jammed paper covering Mailbox Entrance Sensor.
Paper exists covering Mailbox Entrance Sensor. Or Mailbox Entrance Sensor Damaged or harness connection not
well. Or Mailbox Main Board damaged.
 Troubleshooting method
1. Check if there is a jammed paper inside Mailbox.
2. Check Mailbox Main Board Harness connection.
3. Check Mailbox Entrance operation & harness
connection.
4. If the same problem happens after checking 1~3,
replace the mailbox main board.
5. If the same problem happens after checking 4,
replace the mailbox harnesses.