Konica-Minolta bizhub 654e

Error Code:

Code: C392A
Description: Heating roller temperature sensor/4 contamination (Center of the heating roller) While checking the contamination on the heating roller temperature sensor/4, detected temperature of the heating roller thermistor/1 exceeded the detected temperature of the heating roller temperature sensor/4 for over the predetermined value for the predetermined period of time.
Causes: • Fusing unit • Heating roller temperature sensor/4 (TEMS4) • Heating roller thermistor/1 (TH1) • IH power supply (IHPU) • DC power supply (DCPU) • Printer control board (PRCB)
Remedy: 1 Wipe the TEMS4 clean of dirt if any. <Cleaning procedure> • Clear away a dirt or a foreign object on the sensor with a cotton swab. • When a dirt is left even if you cleaned the sensor by above procedure, clear away a dirt or a foreign object on the sensor using a cotton swab dampened with the alcohol. And, wipe off the sensor with a dry cotton swab afterwards. 2 Check the TEMS4 for installed position and proper connector connection. 3 Check the TH1 for installed position and proper connector connection. 4 Check the connection of the fusing unit. 5 Check the fusing unit, IHPU, PRCB and DCPU for proper connection and correct or change as necessary. 6 Replace the fusing unit 7 Replace PRCB

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