Brother MFC-9340CDW Service Manual

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Confidential
■ Error code 050A
The center thermistor or side thermistor of the fuser unit detected some temperature error in
the hardware.
Error code 050B
When the temperature of the center thermistor of the fuser unit is lower than the idle
temperature, the side thermistor of the fuser unit detected a temperature higher than the
specified value.
Error code 050C
When the temperature of the center thermistor of the fuser unit is higher than the idle
temperature, the side thermistor of the fuser unit detected a temperature lower than the
specified value.
<User Check>
- Turn the power OFF and ON again after several seconds to check if the error code
disappears.
Print Unable 05
Turn the power off and then back on again.
Print Unable 05
Turn the power off and then back on again.
Print Unable 05
Turn the power off and then back on again.
Step Cause Remedy
1 Connection failure of the center
or side thermistor harness of the
fuser unit
Check the harness connection of the
center or side thermistor of the fuser unit
and reconnect them.
2 Connection failure of the heater
harness of the fuser unit
Check the harness connection of the
heater of the fuser unit and reconnect it.
3 Harness connection failure of the
eject sensor PCB
Check the harness connection of the eject
sensor PCB and reconnect it.
4 Harness connection failure of the
low-voltage power supply PCB
Check the harness connection of the
low-voltage power supply PCB and
reconnect it.
5 Eject sensor PCB failure Replace the eject sensor PCB ASSY.
6 Fuser unit failure Replace the fuser unit.
7 Low-voltage power supply PCB
failure
Replace the low-voltage power supply
PCB ASSY.
8 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