Error codes konica minolta

Code: C3722, C3725, C3726
Description:
• C3722: Fusing abnormally high temperature detection (Edge of the heating roller) • C3725: Fusing abnormally high temperature detection (Middle of the heating roller) • C3726: Fusing abnormally high temperature detection (Center of the heating roller)
• C3722: Detected temperature of the heating roller temperature sensor/2 (TEMS2) goes beyond a given temperature for a given period of time consecutively.• C3725: Detected temperature of the heating roller temperature sensor/1 (TEMS1) goes beyond a given temperature for a given period of time consecutively. • C3726: Detected temperature of the heating roller temperature sensor/3 (TEMS3) goes beyond a given temperature for a given period of time consecutively.
Causes:
• Fusing unit • C3725: Heating roller temperature sensor/1 (TEMS1) • C3722: Heating roller temperature sensor/2 (TEMS2) • C3726: Heating roller temperature sensor/3 (TEMS3) • IH power supply unit (IHPU) • MFP board (MFPB)
Remedy:
1. Check the fusing unit for correct installation (whether it is secured in position). 2. Check the open/close operation of the upper right door. 3. Check the connector between TEMS1, TEMS2, TEMS3-relay CN512-MFPB CN31E for proper connection and correct as necessary. 4. Check the connector between IHPU CN6-MFPB CN26E for proper connection and correct as necessary. 5. Replace the fusing unit. 6. Replace IHPU. 7. Replace MFPB.