Lexmark X642e Service Manual page 56

7002-xxx
Service error codes (9xx.xx) (continued)
Error Sub
Display text
code codes
920 .31 Under temperature
during steady state
control. Fuser page
count between 300,000
and 399,999.
920 .32 Hot roll fell too far below
desired temperature
while printing. Fuser
page count between
300,000 and 399,999.
920 .33 Hot roll too cool while
checking for slope
change. Fuser page
count between 300,000
and 399,999.
920 .34 Hot roll too cool when
heating to desired
temperature after slope
change. Fuser page
count between 300,000
and 399,999.
920 .36 Fuser is not increasing
in temperature even
though the lamp has
been on for an extended
time. Fuser page count
between 300,000 and
399,999.
920 .37 Fuser has been below
the desired temperature
for too long while media
is in the nip. Fuser page
count between 300,000
and 399,999.
2-18
Service Manual
Description
• Bad thermistor, circuit, or
cabling.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
• Bad thermistor, circuit, or
cabling.
• Noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
• Bad thermistor, circuit, or
cabling.
• Noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
• Bad thermistor, circuit, or
cabling.
• Noisy thermistor signal.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
• Fuser is not receiving AC power.
• Poor supply line voltage.
• 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.
• Incorrect hot roll.
• Abrupt change in temperatures
that has disrupted control.
Action
Go to "920.xx—Cold fuser service
check" on page 2-132.
Go to "920.xx—Cold fuser service
check" on page 2-132.
Go to "920.xx—Cold fuser service
check" on page 2-132.
Go to "920.xx—Cold fuser service
check" on page 2-132.
Go to "920.xx—Cold fuser service
check" on page 2-132.
Go to "920.xx—Cold fuser service
check" on page 2-132.