Samsung SL-X7600GX Service Manual page 460

4. Troubleshooting
► Error Code
U3–3111 / U3–3113 / U3–3114 / U3–3211 / U3–3213 / U3–3214
► Error message
Original paper jam inside of scanner
► Symptom
Jam has occurred inside the DSDF unit.
► Troubleshooting method
1) Find and remove the jammed paper.
2) If this error occurs continually, remove 4 screws and the upper cover.
3) Check the Pick-up Position Sensor(0604–001393) and Pick-up Feed Sensor(0604–001381) connection.
4) Check if the black sheet from the bottom of the pick up feed sensor is attached properly. If it is contaminated, clean it.
5) If the sensor is defective, replace it.
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