Brother DCP-7080 Service Manual page 78

 Error code 6A00
Drum !
Slide the Green tab on Drum Unit.
Detected discharge that may be attributable to dirty corona wire on the drum unit.
<User Check>
• Slide the green tab of the drum unit to left and right for two to three times to clean the
corona wire.
• Clean the terminal of the drum unit.
• Replace the drum unit.
Step
Dirt on the high-voltage power
1
supply PCB terminal
High voltage electrodes
2
attachment failure
High-voltage power supply PCB
3
failure
Main PCB failure
4
 Electrodes location of the toner cartridge and drum unit
 Electrodes location of the machine
Cause
Clean the electrodes of the machine.
Check if the problem disappears after pressing
each electrode. If not, reattach the electrodes.
Replace the high-voltage power supply PCB
ASSY.
Replace the main PCB ASSY.
Fig. 2-8
Fig. 2-9
2-43
Remedy
Side surface of
drum unit
Bottom surface of
drum unit
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