Error Code
C3–1312
► Error message
Imaging Unit Failure: #C3-1312. Install imaging unit again
► Symptom
Toner supply is inefficient or abnormal.
► Troubleshooting method
1) Turn the machine off. Open the front cover
2) Remove the toner cartridge. Shake the toner cartridge horizontally to distribute the toner evenly inside the cartridge.
3) If the problem persists, check the follows.
a) Check if the Toner Supply Drive Unit(JC93–00436A) is defective.
(Refer to 3.3.15. Toner Supply Drive Unit)
b) Check if the Toner Duct Drive Unit(JC93–00451A) is defective.
(Refer to 3.3.14. Toner Duct Drive Unit)
4) If the problem persists, replace the toner cartridge.
5) If the problem persists, replace the drum unit.
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