Brother MFC-9340CDW Service Manual

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Confidential
■ Error code 6801
The internal temperature sensor detected a temperature higher than the specified value.
<User Check>
- Decrease the room temperature.
- Place the machine away from a heater.
■ Error code 6901
Some fuser unit errors occurred at power-ON or upon recovery from sleep mode.
Error code 6902
After the error was detected at the fuser unit, power was turned ON again and the error is
being checked. (If power is turned OFF and ON after error code 6901 occurred, this code is
displayed for about 15 minutes.)
Cooling Down
Wait for a while
Step Cause Remedy
1 Internal temperature sensor
harness connection failure
Check the internal temperature sensor
harness connection and reconnect it.
2 Eject sensor PCB harness
connection failure
Check the eject sensor PCB harness
connection and reconnect it.
3 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
4 Main PCB failure Replace the main PCB ASSY.
Fuser Error
Turn the power off, then on again. Leave the machine for 15 min.
Self-Diagnostic
Will Automatically Restart within 15 minutes.
Step Cause Remedy
1 Each harness connection failure
of the fuser unit
Check each harnesses connection of the
fuser unit and reconnect them.
2 Eject sensor PCB harness
connection failure
Check the eject sensor PCB harness
connection and reconnect it.
3 Fuser unit failure Replace the fuser unit.
4 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
5 Low-voltage power supply PCB
failure
Replace the low-voltage power supply
PCB ASSY.
6 Main PCB failure Replace the main PCB ASSY.
Note:
Turn the power OFF. After checking that the fuser unit has cooled down, turn the power ON
again. After the machine is left as it is for about 10 minutes, this problem may be resolved.

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