Service manual

4. Alignment and Troubleshooting
Service Manual
ML-551x / 651x series
4-55
Samsung Electronics
 Code
C3-1110
C3-1120
C3-1140
 Error message
Prepare new imaging unit
Replace with new imaging unit
Replace with new imaging unit
 Symptom / Cause
The remaining life of the imaging unit is less than 10% of its life.
The remaining life of the imaging unit is less than 0% of its life.
 Troubleshooting method
Prepare the new imaging unit.
 Code
C3-1320
C3-1330
C3-1411
C3-1412
 Error message
Imaging Unit Failure #C3-1320: Install IMG. unit.
Imaging Unit Failure #C3-1330: Install IMG. unit.
Imaging unit is not installed. Install the unit.
Did not supply enough toner. Reinstall Toner
 Symptom / Cause
1. The imaging unit is not installed.
2. The imaging unit is not installed properly.
 Troubleshooting method
1. Install the samsung genuine imaging unit.
2. If the imaging unit is already installed, check the following.
a. Reinstall the toner cartridge and imaging unit.
b. Check If the CRUM contact is normal.
c. After reinstallation, turn the machine off then on.