Samsung ProXpress M456x Series Service Manual page 176

4. Troubleshooting
► Error Code
C1–1512
► Error message
Toner cartridge is not compatible. Check users guide.
► Symptom
Toner cartridge is not compatible.
► Troubleshooting method
1) Open the front cover. Remove the toner cartridge.
2) Check if the label information of the toner cartridge is same with the machine's one. (ex. /SEE)
3) If label information is different from the machine or the toner cartridge is not a samsung genuine, replace it with
a new one.
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