Service manual

4. Alignment and Troubleshooting
Service Manual
ML-551x / 651x series
4-57
Samsung Electronics
 Code
C6-1110
C6-1120
 Error message
Replace with new fuser unit
Replace with new fuser unit
 Symptom / Cause
The fuser unit is at the end of its life.
 Troubleshooting method
1. Remove the Rear cover and Duplex unit.
Replace the fuser unit after removing 4 screws.
2. Tighten 4 screws. Assemble the Rear Cover and Duplex Unit.
 Code
C7-1110
C7-1120
 Error message
Waste toner container is almost full. Replace with new one
Waste toner container is almost full. Replace with new one
 Symptom / Cause
The waste toner container is full.
 Troubleshooting method
Replace the waste toner container with new one.
 Code
C7-1310
 Error message
Install waste toner container.
 Symptom / Cause
The waste toner container is full.
 Troubleshooting method
Install the waste toner container.
If the waste toner container is already installed, remove and reinstall it.