Toshiba e-STUDIO500P Service Manual page 51

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