Samsung MultiXpress K7 Series Service Manual page 408

4. Troubleshooting
► Error Code
S4–3131
► Error message
There has been a problem with fax modem card(Line 1). Install again. Call for service if the problem persists
► Symptom
1st Fax card is not installed properly. / Fax card is defective.
► Troubleshooting method
1) Remove and reinstall the 1st fax card.
2) If the 1st fax card is defective, replace it.
► Error Code
S4–3132
► Error message
There has been a problem with fax modem card(Line 1). Install again. Call for service if the problem persists
► Symptom
2nd Fax card is not installed properly. / Fax card is defective.
► Troubleshooting method
1) Remove and reinstall the 2nd fax card.
2) If the 2nd fax card is defective, replace it.
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