Brother HL-1110 Service Manual page 23

LED
Press the
When error
button
occurs:
once
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Flashes
every 0.5
seconds
Press the
button
twice
After the heat unit was heated normally,
the center thermistor of the fuser unit
detected a temperature lower than the
3 5
specified value.
The center thermistor of the fuser unit
detected a temperature higher than the
specified value.
3 6
The center thermistor of the fuser unit
has not reached the specified
temperature within the specified time.
3 7
Detected "Heater 100% heated"
continuously within the specified time
while printing.
3 10
DRAM failure in the main PCB
4 2
Write error in the NVRAM of the main
PCB
4 3
Read error in the NVRAM of the main
PCB
4 4
BUS error in the NVRAM of the main
PCB
4 5
1-11
Type of problem
Refer
to:
4.5.1
4.5.1
4.5.1
4.5.1
4.7.4
4.7.4
4.7.4
4.7.4
Confidential