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