Dell 5310n - Workgroup Laser Printer B/W Service Manual page 53

Service error codes (9xx.xx) (continued)
Error Sub
Description
code codes
920 .22 Hot roll fell too far below
the desired temperature
while printing. Fuser
page count between
200,000 and 299,999.
920 .23 Hot roll too cool while
checking for slope
change. Fuser page
count between 200,000
and 299,999.
920 .24 Hot roll too cool when
heating to desired
temperature after slope
change. Fuser page
count between 200,000
and 299,999.
920 .26 Fuser is not increasing
in temperature even
though the lamp has
been on for an extended
tim. Fuser page count
between 200,000 and
299,999.
920 .27 Fuser has been below
the desired temperature
for too long while media
is in the nip. Fuser page
count between 200,000
and 299,999.
920 .31 Under temperature
during steady state
control. Fuser page
count between 300,000
and 399,999.
Possible causes
• 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 temperature that
has disrupted control.
• Bad thermistor, circuit, or cabling.
• Fuser not receiving AC power.
• Poor supply line voltage.
• Low voltage or incorrect lamp.
• Incorrect hot roll.
Action
Go to
"920.xx—Cold fuser
service check" on page 2-87.
Go to
"920.xx—Cold fuser
service check" on page 2-87.
Go to
"920.xx—Cold fuser
service check" on page 2-87.
Go to
"920.xx—Cold fuser
service check" on page 2-87.
Go to
"920.xx—Cold fuser
service check" on page 2-87.
Go to
"920.xx—Cold fuser
service check" on page 2-87.
Diagnostic information
2-11