Samsung SL-X7600GX Service Manual page 448

4. Troubleshooting
► Error Code
U1–2115
► Error message
Fuser Unit Failure: #U1-2115. Turn off then on.
► Symptom
The pressure control unit(Cam unit)of the fuser is abnormal.
► Troubleshooting method
1) Turn the machine off then open the side cover.
2) Remove and re-install the fuser unit, then turn the machine on.
3) If the problem persists, check the following :
a) When the side-cover closes, check if the operation sound of the pressure control unit occurs.
b) Check if the parts of the pressure control unit are abnormal.
- Check if the shape of the CAM-REAR is broken.
- Check if there are abnormal parts of the pressure control unit.
c) Check if the fuser-motor is abnormal via SVC mode.
4) If the problem persists, replace the Fuser unit.
5) If the problem persists, replace the pressure control unit or cam-motor or main board.
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