This is a code for the fuser, which indicates a very serious overheating condition. Your machine has something _seriously_ wrong with it, and should be looked at by a service technician.
SC544 - Fusing overheat error 2
A fusing temperature of over 251°C is detected by the fusing temperature monitor circuit in the SBCU board.
Potential Causes:
• Fusing thermistor defective
• Power supply board defective
• SBCU board defective
Press total clear Yellow key, 107, and press and hold clear stop key orange key more than 3 sec this reset the call condition.
But what
says to femaster he is correct.
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