Brother MFC-9340CDW Service Manual

2-83
Confidential
4.2.2 No paper feeding from the manual feed slot
<User Check>
- Check if the paper is loaded into the manual feed slot correctly.
- Check that multiple sheets of paper are not loaded in the manual feed slot.
- Check if the thickness of the paper is 60 to 163 g/m
2
.
- Check whether a paper tray is selected mistakenly as the setting of printer driver.
4.2.3 Double feeding
<User Check>
- Check if the paper is loaded into the paper tray correctly.
- Check that too much paper is not loaded in the paper tray.
- Turn back the paper loaded in the paper tray or change the orientation of the paper by 180
°.
- Check if the thickness of the paper is 60 to 105 g/m
2
.
- Shuffle the papers and reload them into the paper tray.
Step Cause Remedy
1 Coming off of manual feed
actuator.
Re-assemble the manual feed actuator.
2 Main motor harness connection
failure
Check the main motor harness
connection and reconnect it.
3 Registration front/rear/manual
feed sensor PCB harness
connection failure
Check the registration front/rear/manual
feed sensor PCB harness connection and
reconnect it.
4 Registration clutch failure Replace the registration clutch.
5 Paper feed unit failure Replace the paper feed unit.
6 Main motor failure Replace the process drive 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.
Step Cause Remedy
1 Separation pad or separation
roller worn out
Replace the PF kit 1.

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