Brother DCP-8085DN Service Manual page 111

■ Error code F9
Machine Error F9
Maintenance mode 74 Non-decision
Step
Turn the power off, when the
Maintenance mode 74
1
"PARAMETER INIT" is in
progress.
2 Main PCB failure
■ Error code FF
Unusable Device
Remove the Device. Turn the power off and back on again.
Excess current to WLAN PCB error
Step
1 WLAN PCB failure
2 Main PCB failure
Cause
Cause
3-39
Remedy
Implement the Maintenance mode 74
again.
Replace the main PCB ASSY.
Remedy
Replace the WLAN PCB.
Replace the main PCB ASSY.
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