Brother MFC-9340CDW Service Manual

Confidential
2.3 Operation of Each Part ............................................................................................... 2-9
2.4 Block Diagram .......................................................................................................... 2-10
2.5 Components ............................................................................................................. 2-11
3. ERROR INDICATIONS.............................................................................2-12
3.1 Error Codes .............................................................................................................. 2-12
3.2 Error Message .......................................................................................................... 2-24
3.3 Communications Error Code .................................................................................... 2-30
4. TROUBLESHOOTING .............................................................................2-34
4.1 Error Cause and Remedy......................................................................................... 2-34
4.2 Paper Feeding Problems.......................................................................................... 2-82
4.2.1 No paper feeding from paper tray.................................................................... 2-82
4.2.2 No paper feeding from the manual feed slot ................................................... 2-83
4.2.3 Double feeding ................................................................................................ 2-83
4.2.4 Wrinkles on paper............................................................................................ 2-84
4.2.5 Paper inclines diagonally................................................................................. 2-84
4.2.6 Curl of paper .................................................................................................... 2-85
4.2.7 Unable to perform 2-sided printing ..................................................................2-85
4.2.8 Paper jam ........................................................................................................2-86
4.3 Image Defect Troubleshooting.................................................................................. 2-88
4.3.1 Image defect examples ................................................................................... 2-88
4.3.2 Troubleshooting image defect ......................................................................... 2-89
4.4 Software Setting Problems ..................................................................................... 2-103
4.4.1 Cannot print data ........................................................................................... 2-103
4.5 Network Problems .................................................................................................. 2-104
4.5.1 Cannot make a print through network connection ......................................... 2-104
4.6 Troubleshooting of the Control Panel ..................................................................... 2-105
4.6.1 Nothing is displayed on the LCD. ..................................................................2-105
4.6.2 Unable to perform panel operation ................................................................ 2-105
4.6.3 Lamp malfunction .......................................................................................... 2-105
4.6.4 The touch panel does not work ..................................................................... 2-106
4.7 Troubleshooting of the Toner Cartridge and Drum Unit .......................................... 2-107
4.7.1 New toner not detected ................................................................................. 2-107
4.7.2 Cartridge error (Toner cartridge not detected) ............................................... 2-107
4.7.3 Toner low
(Even though a new toner cartridge is set, Toner low warning remains) ....... 2-107
4.7.4 Drum error ..................................................................................................... 2-108
4.7.5 Drum unit replacement
(Even though drum counter is reset, "Replace Drum" warning remains.)...... 2-108

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