Konica-Minolta Di2510

Error Code:

Code: C0520
Description: High Fuser Temperature Failure (Main)
• The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature above 240C when the Power Switch is set to ON. • The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature above 240C when the Power Switch is set to ON.
Remedy: 1 Check that the Fusing Roller Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary. 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary. 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary. 4 Check the operation of the Fusing Roller Thermistor. Remove CN80 (4P), and then check that the resistance across CN80-2 and -3 on the Thermistor is infinity. 5 Check the operation of the Fusing Roller Sub Thermistor. Remove CN81 (4P), and then check that the resistance across CN81-2 and -3 on the Thermistor is infinity. 6 Check the continuity of the Fusing Roller Heater Lamp. Correct or replace as necessary. 7 Check the continuity of the Fusing Roller Sub Heater Lamp. Correct or replace as necessary. 8 Replace PU1. 9 Replace PWB-A.

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