Xerox machine reports only a few kinds of thermal fixing errors, one is that thermal fixing can't rotate, and the other is that the sensor detects insufficient temperature.

Sensor errors are often reported, especially in the American version of the machine. Actually, it's not a big problem You just need to remove the fixture and clean it, and 90% of it will be solved. The probability of sensor failure is very small, I have only encountered it once. The problem is that disassembly is a bit difficult.