Error #U1-2330 Turn Off Then; Error #U1-2331 Turn Off Then; Error #U1-2333 Turn Off Then; Error #U1-2334 Turn Off Then - Samsung Xpress M288 Series Service Manual

4. Alignment and Troubleshooting
► Error Code
U1–2330
U1–2331
U1–2333
U1–2334
U1–2340
► Error message
Error #U1-2330 Turn off then on
Error #U1-2331 Turn off then on
Error #U1-2333 Turn off then on
Error #U1-2334 Turn off then on
Error #U1-2340 Turn off then on
► Symptom
The temperature control of fuser unit is abnormal. (Low Heat Error or Over Heat Error)
► Troubleshooting method
1) Turn the machine off. Re-install the fuser unit. Then turn the machine on. Is the error message is disappeared?
2) If the problem persists, turn the machine off and remove the fuser unit.
a) Check if the fuser connector is connected properly.
b) Check if the input voltage is normal.
c) Check if the thermistor is twisted or contaminated.
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