Service manual

4. Alignment and Troubleshooting
Service Manual
ML-551x / 651x series
4-53
Samsung Electronics
 Code
C1-1311
C1-1412
C1-1413
C3-1312
C3-1315
 Error message
Toner Failure: #C1-1311: Install toner again
Did not supply enough toner. Reinstall it
Shake toner cartridge and then install.
Imaging Unit Failure #C3-1312: Install IMG. unit.
Imaging Unit Failure #C3-1315: Install IMG. unit.
 Symptom / Cause
The imaging unit does not get enough toner from the toner cartridge.
1. The toner cartridge shutter does not work normally.
2. The imaging unit shutter does not work normally.
3. The toner cartridge seal is not removed.
4. The toner cartridge is not installed properly.
5. The toner is consumed quickly due to a defective image (Background etc.)
 Troubleshooting method
1. Turn the machine off then on.
2. Remove the toner cartridge.
Thoroughly roll the cartridge fi ve or six times to distribute the toner evenly inside the cartridge.
And reinstall the toner cartridge.
3. Try to print out the sample page more than 20 pages.
4. Check the toner cartridge.
- Check if the toner supply shutter between the toner cartridge and the imaging unit works normally.
- Remove the seal. Check if the auger rotates normally.
- Reinstall the toner cartridge.
5. Replace the toner cartridge. Print out the sample page.
6. Check if the toner supply motor works normally.