Diagnostic information 2-15
920 .92 Hot roll fell too far below
desired temperature
while printing. Fuser
page count not
available.
• Bad thermistor, circuit, or cabling.
• Noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Excessive load on the fuser.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
Go to “920.xx—Cold fuser
service check” on page 2-87.
920 .93 Hot roll too cool while
checking for slope
change. Fuser page
count not available.
• Bad thermistor, circuit, or cabling.
• Noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Excessive load on the fuser.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
Go to “920.xx—Cold fuser
service check” on page 2-87.
920 .94 Hot roll too cool when
heating to desired
temperature after slope
change. Fuser page
count not available.
• Bad thermistor, circuit, or cabling.
• Noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Excessive load on the fuser.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
Go to “920.xx—Cold fuser
service check” on page 2-87.
920 .96 Fuser is not increasing
in temperature even
though the lamp has
been on for an extended
time. Fuser page count
not available.
• Fuser is not receiving AC power.
• Poor supply line voltage.
Go to “920.xx—Cold fuser
service check” on page 2-87.
920 .97 Fuser has been below
the desired temperature
for too long while media
is in the nip. Fuser page
count not available.
• Bad thermistor, circuit, or cabling.
• Very noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Excessive load on the fuser.
• Low voltage or incorrect lamp.
• Abrupt change in temperatures that
has disrupted control.
Go to “920.xx—Cold fuser
service check” on page 2-87.
922 .02 Hot roll took too long to
reach the beginning
lamp detection
temperature. Fuser
page count between 0
and 99,999.
• Low wattage or incorrect lamp.
• Bad thermistor, circuit, or cabling.
• Fuser not receiving sufficient AC
power.
• Poor supply line voltage.
Go to “922.xx—Cold fuser
check” on page 2-89.
Service error codes (9xx.xx) (continued)
Error
code
Sub
codes
Display text Description Action
