Msok Failure: #S1-2510. Call For Service & Change Msok; Msok Failure: #S1-2521. Call For Service; Ppm Data Is Incorrect. Call For Service & Change Msok; Engine System Failure: #S2-1211. Turn Off Then On - Samsung MultiXpress M537x series Service Manual

4. Troubleshooting
► Error Code
S1–2510
S1–2521
S1–2523
S1–2530
► Error message
MSOK Failure: #S1-2510. Call for service & Change MSOK

MSOK Failure: #S1-2521. Call for service

PPM data is incorrect. Call for service & change MSOK

Engine System Failure: #S2-1211. Turn off then on

► Symptom
MSOK is defective. / MSOK data is wrong.
► Troubleshooting method
1) Turn the machine off and on.
2) If the problem persists, turn the machine off again.
3) Remove the rear cover.
4) Check if the MSOK is inserted correctly. Remove and reinstall it.
5) If the problem persists, contact the tech support team.
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