Brother DCP-7055 Service Manual page 79

■ Error code 6C
Print Unable 6C
Turn the power off and then back on again.
Fuser unit error. (The center thermistor does not detect 60 °C within the specified time.)
■ Error code 6D
Print Unable 6D
Turn the power off and then back on again.
Fuser unit error. (The center thermistor does not detect 60 °C within the specified time.)
Step
Fuser unit connector connection
1
failure
2 Fuser unit failure
Low voltage power supply PCB
3
failure
Paper eject sensor PCB failure
4
5 Main PCB failure
■ Error code 6E
This error does not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
Print Unable 6E
Turn the power off and then back on again.
Error, which cannot be specified, occurs.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
Cause
Cause
2-42
Remedy
Check the connector connection of the
fuser unit and reconnect it.
Replace the fuser unit.
Replace the low voltage power supply PCB
ASSY.
Replace the paper eject sensor PCB
ASSY.
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
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