Code :

Code: 923.11
Description: Fuser over temperature. Fuser page count between 100,000 and 199,999.
Causes: • Short in the thermistor circuit. • Noisy thermistor signal • Fuser is actually overheating due to hardware faults.
Remedy: See 923.01

Code: 923.21
Description: Fuser over temperature. Fuser page count between 200,000 and 299,999.
Causes: • Short in the thermistor circuit. • Noisy thermistor signal • Fuser is actually overheating due to hardware faults.
Remedy: See 923.01

Code: 923.31
Description: Fuser over temperature. Fuser page count between 300,000 and 399,999.
Causes: • Short in the thermistor circuit. • Noisy thermistor signal • Fuser is actually overheating due to hardware faults.
Remedy: See 923.01

Code: 923.41
Description: Fuser over temperature. Fuser page count between 400,000 and 499,999.
Causes: • Short in the thermistor circuit. • Noisy thermistor signal • Fuser is actually overheating due to hardware faults.
Remedy: See 923.01

Code: 923.51
Description: Fuser over temperature. Fuser page count stopped at 500,000 to preserve data.
Causes: • Short in the thermistor circuit. • Noisy thermistor signal • Fuser is actually overheating due to hardware faults.
Remedy: See 923.01

Code: 923.91
Description: Fuser over temperature. Fuser page count not available.
Causes: • Short in the thermistor circuit. • Noisy thermistor signal • Fuser is actually overheating due to hardware faults.
Remedy: See 923.01

Code: 924.01
Description: Open thermistor check failure. Fuser page count between 0 and 99,999.
Causes: • Noisy thermistor signal. • Intermittent connection. • Thermistor cable not connected or thermistor actually open.
Remedy: 1 Fuser assembly Fuser to system board cable Check the thermistor cable for correct installation to J5 on the fuser card. If installed correctly, check for correct installation of J10 on the system board. If all cables are installed correctly, go to step 2. 2 Fuser top cover assembly (thermistor/thermistor cable assembly) Turn the printer off and disconnect the thermistor cable from J5 on the fuser board. Measure the resistance between the two pins on the thermistor cable, if the resistance measures infinity (open circuit), replace the fuser top cover assembly. 3 Fuser to system board cable. System board Fuser assembly Reconnect the thermistor cable to J5 on the fuser board. Disconnect the fuser to system board cable from J10 on the system board and measure the resistance between J10-3 and J10-4 on the cable. If the resistance measures infinity (open circuit) check the continuity of pins 3 and 4 of the cable. If correct, replace the fuser assembly. See “Fuser assembly removal”. If incorrect, replace the fuser to system board cable. Note: If the error code still displays, replace the system board. See “System board and inner shield removal —model 500S".

Code: 924.11
Description: Open thermistor check failure. Fuser page count between 100,000 and 199,999.
Causes: • Noisy thermistor signal. • Intermittent connection. • Thermistor cable not connected or thermistor actually open.
Remedy: See 924.01