Konica-Minolta Di151

Error Code:

Code: C0520
Description: Abnormally high fusing temperature
The temperature detected by the Thermistor remains higher than 240 °C for a continuous 50 ms period while fusing temperature control is in progress.
Remedy: 1 Thermistor installed at the correct position. NO Correct. 2 Thermistor contaminated. YES Clean. 3 The circuit across CN1-1 and 2 on the Fusing Unit side is shorted as checked with CN1 disconnected. YES Change Thermistor. NO Change Master Board. Change Power Supply Board.

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