Brother MFC-9340CDW Service Manual

2-57
Confidential
■ Error code 6B0A
GRID current failure was detected in a state other than immediately after power was turned
ON or the joint cover ASSY was closed.
<User Check>
- Re-insert the drum unit.
- Clean the GRID terminals of the drum unit. (Refer to fig. 2-8 (P2-51))
- Clean the corona wire by sliding the green tab of each drum unit for all four colors several
times.
■ Error code 6E00
The develop release sensor detected the develop roller disengagement or engagement
failure.
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.
Toner Error
One or more Toner Cartridges are not detected. Pull out and reinsert all 4
Toner Cartridges.
Step Cause Remedy
1 Develop release sensor harness
connection failure
Check the develop release sensor
harness connection and reconnect it.
2 High-voltage power supply PCB
harness connection failure
Check the high-voltage power supply PCB
harness connection and reconnect it.
3 Develop release sensor failure Replace the develop release sensor PCB
ASSY.
4 Misalignment of develop clutch
cam
Check the develop clutch cam position
and re-assemble it.
5 Develop release clutch failure Replace the develop release clutch.
6 High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
7 Main PCB failure Replace the main PCB ASSY.

Brother MFC-9340CDW Specifications

Printing Specifications

print speed (black)	up to 23 ppm
print speed (color)	up to 23 ppm
print resolution	up to 600 x 2400 dpi
automatic duplex printing	Yes

Copying Specifications

copy speed (black)	up to 23 cpm
copy speed (color)	up to 23 cpm
copy resolution	600 x 600 dpi
copy reduction/enlargement	25% - 400% in 1% increments

Scanning Specifications

scanner type	Color Flatbed with ADF
document glass size	8.5” x 11.7”
scan resolution (optical)	1200 x 2400 dpi
scan resolution (interpolated)	19200 x 19200 dpi

Fax Specifications

fax modem	33.6k bps
fax page memory	up to 500 pages
speed dial locations	200

Memory and Interfaces

memory (standard/max)	192MB / 192MB
standard interfaces	Wireless 802.11b/g/n, Ethernet, Hi-Speed USB 2.0
usb direct interface	Yes

Supplies and Accessories

black toner cartridge yield	2, 500 pages
cyan toner cartridge yield (standard)	1, 400 pages
magenta toner cartridge yield (standard)	1, 400 pages
yellow toner cartridge yield (standard)	1, 400 pages
cyan toner cartridge yield (high capacity)	2, 200 pages
magenta toner cartridge yield (high capacity)	2, 200 pages
yellow toner cartridge yield (high capacity)	2, 200 pages
drum unit yield	15, 000 pages
belt unit yield	50, 000 pages
waste toner box yield	50, 000 pages
multi-purpose paper	Letter, 500 sheets