Brother MFC-9340CDW - Page 94

2-55
Confidential
■ Error code 6A00
Electric discharge that may be caused by dirt on the corona wire of the drum unit was
detected.
<User Check>
- Clean the corona wire by sliding the green tab of each drum unit for all four colors several
times.
- Clean the drum unit. (Refer to fig. 2-8 (P2-51))
- Replace the drum unit.
Drum !
Slide the Green tab on Drum Unit.
Step Cause Remedy
1 Dirt on the GRID terminals of
the main body
Clean the GRID terminals of the main
body. (Refer to fig. 2-7 (P2-50))
2 Dirt on the terminal of the
high-voltage power supply PCB
Clean the terminal of the high-voltage
power supply PCB.
3 High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.