Samsung MultiXpress K4 Series Service Manual page 313

A3 mono copier
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► Error Code
A3–3210
A3–3211
A3–3212
► Error message
Sensor Failure: #A3-3210. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3211. Turn off then on. Call for service if the problem persists
Sensor Failure: #A3-3212. Turn off then on. Call for service if the problem persists
► Symptom
Inner temperature sensor is defective.
► Troubleshooting method
A3–3210 : Inner temperature sensor value is abnormal.
A3–3211 : Inner temperature sensor is in short status.
A3–3212 : Inner temperature sensor is in open status.
1) Open the side cover. Check the inner temperature sensor connection.
If the connection is OK, replace the photo sensor (1404-001417).
2) If the sensor is normal, replace the main board(JC92-02746A).
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4. Troubleshooting
4-78

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