Brother HL-5440D Service Manual page 60

Press [Go] and
LED
[Cancel]
simultaneously once
Press [Go] and
[Cancel]
simultaneously twice
The center thermistor of the fuser
unit has not reached the specified
temperature within the specified
time.
The center thermistor of the fuser
unit has not reached the specified
temperature within the specified
time.
The center thermistor of the fuser
unit detected a temperature higher
than the specified value.
After the heat unit was heated
normally, the center thermistor of
the fuser unit detected a
temperature lower than the
specified value.
The center thermistor of the fuser
unit detected that the heat unit was
not heated.
The center thermistor or the side
thermistor of the fuser unit
detected a temperature error.
2-24
Type of problem
Error Refer
codes to:
6A00 2-37
6B00 2-37
6C00 2-37
6D00 2-37
6E00 2-37
6F00 2-37
Confidential