Samsung MultiXpress K4 Series Service Manual page 401

► Error Code
S2–1211
S2–2311
► Error message
Engine System Failure: #S2-1211. Turn off then on
Engine System Failure: #S2-2311. Turn off then on
► Symptom
The main board is defective.
► Troubleshooting method
1) Turn the machine off then on.
2) If the problem persists, turn the machine off again.
3) Replace the main board(JC92-02746A).
4) Turn the machine on.
► Error Code
S2-3321
► Error message
Supplying and mixing toner to developer unit. Please wait...
► Symptom
Toner supply is insufficient.
► Troubleshooting method
1) Machine will execute the toner supply job. Please wait until error message will be disappeared.
2) If the problem persists, check the toner supply drive unit.
3) If the problem persists, replace the toner cartridge.
► Error Code
S2-3421
► Error message
Calibrating image density. Please wait...
► Symptom
Machine is on TC calibration.
► Troubleshooting method
1) Machine will execute the toner calibration job. Please wait until error message will be disappeared.
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4. Troubleshooting
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