Samsung SCX 3205 Service Manual page 100

● Code :
U1-2131
● Symptom / Cause :
The Fuser is being diagnosed for Low Heat Error.
● Troubleshooting method :
1. Turn the machine off and turn it on again.
2. Check the following :
A. Check the power voltage of the fuser unit. (110V, 220V)
B. Check if the Heat lamp is broken.
C. Check if the AC connection of Heat lamp is disconnected or contaminated.
D. Check if the thermostat is blown.
E. Check if there is any jammed paper in fuser unit.
F. Check if the power voltage is normal. (Is the voltage during the operation ±10% of the rated voltage?)
3. If the problem persists, replace the fuser unit.
4. If the problem persists after replacing the fuser unit, replace the engine board or SMPS.
● Replacement part
Service Manual
Alignment and Troubleshooting
● Error message :
Fuser Unit Failure #U1-2131 : Turn off then on.
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