Samsung MultiXpress K4 Series Service Manual page 406

4. Troubleshooting
ii) Check USB cable state between main board and OPE.
iii) Replace the main board with new one.
iv) Replace the OPE board with new one.
► Error Code
S6–3122
► Error message
Network cable is disconnected. Check it.
► Symptom
Network cable is disconnected.
► Troubleshooting method
1) Check if the green LED of the network port is on.
2) If not, unplug and reconnect the network cable.
3) If the problem persists, replace the main board(JC92-02746A).
(Refer to 3.3.7 Main Board)
► Error Code
S6–3123
S6–3128
► Error message
This IP address conflicts with that of other system. Check it.
802.1x authentication failed. Please Contact the System Administrator.
► Symptom
Network error. (IP address conflicts with that of another system. / Communication error / There is no response when
checking the ping test.)
► Troubleshooting method
• Change the machine's IP address.
1) Select "Machine Setup" on the touch screen.
2) Select "Networking Setting".
3) "Log-In".
4) Select "TCP/IP".
5) Select the proper item for your machine.
6) Select "IP Setting".
7) Select the proper item for your machine.
8) Change the IP address.
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