Toshiba e-STUDIO500P Service Manual page 50

Service error codes (9xx.xx) (continued)
Error Sub
Display text
code codes
92 .52 Hot roll fell too far below
desired temperature
while printing. Fuser
page count more than
500,000.
920 .53 Hot roll too cool while
checking for slope
change. Fuser page
count more than
500,000.
920 .54 Hot roll too cool when
heating to desired
temperature after slope
change. Fuser page
count more than
500,000.
920 .56 Fuser is not increasing
in temperature even
though the lamp has
been on for an extended
time. Fuser count more
than 500,000.
920 .57 Fuser has been below
the desired temperature
for too long while media
is in the nip. Fuser page
count more than
500,000.
920 .91 Hot roll took too long to
heat up after
transitioning to new
enhanced mode. Fuser
page count not
available.
2-14
Service Manual
Description
• 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.
• 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.