Lexmark X642e Service Manual page 53

Service error codes (9xx.xx) (continued)
Error Sub
Display text
code codes
920 .01 Hot roll took too long to
heat up after
transitioning to new
enhanced mode
(standby control only.
Fuser page count
between 0 and 99,999.
920 .02 Hot roll fell too far below
the desired temperature
while in standby. Fuser
page between 0 and
99,999.
920 .03 Hot roll too cool when
checking for slope
change in standby.
Fuser page count
between 0 and 99,999.
920 .04 Hot roll too cool when
heating to desired
temperature after slope
change (standby control
only). Fuser page count
between 0 and 99,999.
920 .06 Fuser is not increasing
in temperature even
though the lamp has
been on for an extended
time. Fuser page count
between 0 and 99,999.
920. .07 Fuser has been below
the desired temperature
for too long while media
is in the nip. Fuser page
count between 0 and
99,999.
Description
• Bad thermistor, circuit or cabling.
• Fuser not receiving sufficient AC
power.
• Poor supply line voltage.
• Low wattage or incorrect lamp.
• Incorrect hot roll.
• Bad thermistor, circuit or cabling.
• Fuser not receiving sufficient AC
power.
• Poor supply line voltage.
• Low wattage or incorrect lamp.
• Incorrect hot roll.
• Bad thermistor, circuit or cabling.
• Fuser not receiving sufficient AC
power.
• Poor supply line voltage.
• Low wattage or incorrect lamp.
• Incorrect hot roll.
• Bad thermistor, circuit or cabling.
• Fuser not receiving sufficient AC
power.
• Poor supply line voltage.
• Low wattage 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.
• Abrupt change in temperature
that has disrupted control.
• Incorrect hot roll.
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.
Diagnostic information
7002-xxx
2-15