Brother DCP-8110DN Service Manual page 108

Error code DD00
Print Unable DD
Turn the power off and then back on again.
Fuser unit error (except error codes 6A00 to 6F00, 7600, 7800, DE00, and E200)
<User Check>
• Turn OFF the power switch. After several seconds, turn ON the power again and check
that this error is reset.
Step
Connection failure of the center
1 or side thermistor harness of
the fuser unit
Connection failure of the heater
2
harness of the fuser unit
Connection failure of the eject
3
sensor PCB harness
Connection failure of the low-
4 voltage power supply PCB
harness
Eject sensor PCB failure
5
Low-voltage power supply PCB
6
failure
7 Fuser unit failure
8 Main PCB failure
Error code DE00
Print Unable DE
Turn the power off and then back on again.
When the center thermistor of the fuser unit is higher than the idle temperature, the side
thermistor detected a temperature lower than the specified temperature.
<User Check>
• Turn OFF the power switch. After several seconds, turn ON the power again and check
that this error is reset.
Step
Connection failure of the side
1 thermistor harness of the fuser
unit
Connection failure of the eject
2
sensor PCB harness
Eject sensor PCB failure
3
4 Fuser unit failure
5 Main PCB failure
Cause
Check the connection of the center or side
thermistor harness of the fuser unit, and
reconnect it if necessary.
Check the connection of the heater harness of
the fuser unit, and reconnect it if necessary.
Check the connection of the eject sensor PCB
harness, and reconnect it if necessary.
Check the connection of the low-voltage power
supply PCB harness, and reconnect it if
necessary.
Refer to
(function code: 32)" in Chapter 5
sensor operation. If the sensor operation is
faulty, replace the eject sensor PCB ASSY.
Replace the low-voltage power supply PCB
ASSY.
Replace the fuser unit.
Replace the main PCB ASSY.
Cause
Check the connection of the side thermistor
harness of the fuser unit, and reconnect it if
necessary.
Check the connection of the eject sensor PCB
harness, and reconnect it if necessary.
Refer to
(function code: 32)" in Chapter 5
sensor operation. If the sensor operation is
faulty, replace the eject sensor PCB ASSY.
Replace the fuser unit.
Replace the main PCB ASSY.
2-63
Remedy
"1.3.10 Check sensor operation
Remedy
"1.3.10 Check sensor operation
to check the
to check the
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