Lexmark X642e Service Manual page 66

7002-xxx
Service error codes (9xx.xx) (continued)
Error Sub
Display text
code codes
923 .51 Fuser over temperature.
Fuser page count
stopped at 500,000 to
preserve data.
923 .91 Fuser over temperature.
Fuser page count not
available.
924 .01 Open thermistor check
failure. Fuser page
count between 0 and
99,999.
924 .11 Open thermistor check
failure. Fuser page
count between 100,000
and 199,999.
924 .21 Open thermistor check
failure. Fuser page
count between 200,000
and 299,999.
924 .31 Open thermistor check
failure. Fuser page
count between 300,000
and 399,999.
924 .41 Open thermistor check
failure. Fuser page
count between 400,000
and 499,999.
924 .51 Open thermistor check
failure. Fuser page
count over 500,000.
924 .91 Open thermistor check
failure. Fuser page
count not available.
925 .01 Lamp detection
performed and found
error. Fuser page count
between 0 and 99,999.
925 .02 Too hot to do lamp
detection and NVRAM
bit indicates previous
wrong lamp detected.
Fuser page count
between 0 and 99,999.
2-28
Service Manual
Description
• Short in the thermistor circuit.
• Noisy thermistor signal
• Fuser is actually overheating
due to hardware faults.
• Short in the thermistor circuit.
• Noisy thermistor signal
• Fuser is actually overheating
due to hardware faults.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• Noisy thermistor signal.
• Intermittent connection.
• Thermistor cable not connected
or thermistor actually open.
• 115 V lamp in 220 V printer.
• Lamp has excessive wattage.
Attempting to POR machine after
receiving a 925.01.
Action
Go to "923.xx—Hot fuser service
check" on page 2-135.
Go to "923.xx—Hot fuser service
check" on page 2-135.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "924.xx—Hot fuser service
check" on page 2-136.
Go to "925.xx—Hot fuser service
check" on page 2-137.
Go to "925.xx—Hot fuser service
check" on page 2-137.