Brother MFC-9340CDW Service Manual

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Confidential
■ Error code 4500
Printable pages set for the fuser unit has reached the upper limit. (Printing is not stopped.)
■ Error code 4700
The waste toner sensor detected that the waste toner box is almost full.
Error code 4800
After the waste toner sensor detected that the waste toner box was almost full, pages more
than the specified number have been printed.
<User Check>
- Replace the waste toner box.
Replace Parts
Fuser Unit
Step Cause Remedy
1 Main PCB failure if the error code
remains after replacing with a
new fuser unit and resetting the
fuser unit counter
Replace the main PCB ASSY.
Replace Parts
WT Box End Soon
Replace WT Box
Replace the Waste Toner Box inside the machine. To get to it, remove all the
Drums & Toners then remove the Belt Unit.
Step Cause Remedy
1 Dirt on the contact of waste toner
sensor in high-voltage power
supply PCB
Clean the contact in the high-voltage
power supply PCB.
2 High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
3 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