Samsung SL-X7600GX Service Manual page 461

► Error Code
U3–3122
► Error message
Documents are inserted incorrectly. After open the scanner`s door, put it again. Call for service if the problem persists
► Symptom
DSDF pick up module has the problem.
► Troubleshooting method
1) Open and close the DSDF cover. Check if the error message is disappeared.
2) Open the DSDF cover. Push and release the pick up module. Check if the pick up module returns the original
position.
• Check if the spring is deformed. If the spring is defective, replace it.
3) Check If the regi sensor is OK, check the scan sensor and scan actuator. If their operation is abnormal, replace
the defective part.
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4. Troubleshooting
4-210