Samsung ProXpress M453x series Service Manual page 141

► Error Code
C3–1512
► Error message
Imaging unit is not compatible. Check users guide.
► Symptom
Imaging unit is not compatible.
► Troubleshooting method
1) Open the front cover.
2) Remove and reinstall the imaging unit.
3) Close the front cover.
4) If the problem persists, replace the imaging unit with new one.
► Error Code
C3–1712
► Error message
Imaging unit Failure: #C3-1712. Call for service.
► Symptom
The data of CRUM is not detected.
► Troubleshooting method
1) Open the front cover.
2) Remove the imaging unit check that its modular jack is contaminated or deformed.
3) If it is defective, replace it with new one.
4) Close the front cover.
► Error Code
C6–1120
► Error message
Replace with new fuser unit
► Symptom
Fuser unit is at the end of its life.
► Troubleshooting method
1) Turn the machine off.
2) Open and remove the rear cover.
3) Remove the fuser
4) Close the rear cover.
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unit(JC91–01177A (220V) / JC91–01176A (110V)) and replace it with new one.
4. Troubleshooting
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