Brother MFC-9340CDW Service Manual

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Confidential
4.11 Document Feeding Problems
4.11.1 No feeding
<User Check>
- Load the document all the way, and check that the LCD display is changed.
- Check whether the number of loaded documents exceed 35.
- Check whether the ADF cover is properly closed.
4.11.2 Double feeding
<User Check>
- Check whether paper thinner than 64 g/m
2
is used as document.
Step Cause Remedy
1 Coming off of document
detection actuator
Re-assemble the document detection
actuator.
2 Coming off of ADF cover
actuator
Re-assemble the ADF cover actuator.
3 ADF motor harness
connection failure
Check the ADF motor harness connection
and reconnect it.
4 ADF cover/document
detection sensor PCB
harness connection failure
Check the ADF cover/document detection
sensor PCB harness connection and
reconnect it.
5 Document separate roller
failure
Replace the document separate roller ASSY.
6 ADF cover/document
detection sensor failure
Replace the ADF cover/document detection
sensor PCB ASSY.
7 ADF motor failure Replace the ADF motor ASSY.
8 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1 ADF separation pad worn out Replace the ADF separation pad.

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