Brother MFC-9140CDN Service Manual

2-94
Confidential
■ Vertical streaks
Fig. 2-13
<User Check>
- Clean the corona wire of each drum unit for all four
colors.
- Return the cleaning tab of the corona wire to the
position.
- This symptom might stop occurring after making
several prints.
- Refer to the User’s guide and remove the dirt on the
exposure drum using a cotton swab.
- Replace the drum unit or toner cartridge with a new
one.
- Clean the LED ASSY.
- Open the joint cover ASSY and the back cover, and
leave them for 30 minutes or longer to draw moist air
and prevent condensation.
Step Cause Remedy
1 Dirt in the paper feed system Wipe dirt off.
2 FG wires and FG plate
installation failure (Grounding
is not performed properly)
Retighten the screws that hold the FG wires
and FG plate.
Repair the bend of the tray ground spring of
the paper tray.
3 LED ASSY failure Replace the LED ASSY.
4 Scratch and dirt on fuser unit Replace the fuser unit.
Note:
If the machine continuously prints the same pattern including vertical streaks in particular,
black vertical streaks may appear on the paper since the electrostatic performance of the
exposure drum is decreased temporally.
Tray ground spring
Paper tray
<Bottom of paper tray>

Brother MFC-9140CDN Specifications

General

Print technology	LED
Maximum resolution	600 x 2400 DPI
Economical printing	Yes
Duplex printing mode	Auto
Warm-up time (from sleep mode)	24 s
Time to first page (black, normal)	16 s
Print speed (black, normal quality, A4/US Letter)	22 ppm
Duplex print speed (black, normal quality, A4/US Letter)	3.5 ppm
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
N-in-1 copy function (N=)	2, 4, 9, 16, 25
Time to first copy (black, normal)	19 s
Time to first copy (color, normal)	22 s
Copy speed (black, normal quality, A4)	22 cpm
Scan to	E-mail, E-mail Server, File, FTP, Image, OCR
Scan drivers	ICA, ISIS, TWAIN, WIA
Scanner type	Flatbed & ADF scanner
Film scanning	No
Grayscale levels	256
Input color depth	48 bit
Maximum scan area	216 x 356 mm
Output color depth	24 bit
Image formats supported	JPG, PNG, TIF
Maximum scan resolution	19200 x 19200 DPI
Document formats supported	PDF
Optical scanning resolution	1200 x 2400 DPI
Faxing	Color faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax coding methods	JBIG, MH, MMR (Fax coding method), MR
Fax transmission speed	2 sec/page
Fax speed dialing (max numbers)	200
Printing colors	Black, Cyan, Magenta, Yellow
Maximum duty cycle	- pages per month
Recommended duty cycle	300 - 1500 pages per month
Number of print cartridges	4
Page description languages	BR-Script 3, PCL 6
Paper input type	Paper tray
Total input capacity	250 sheets
Total output capacity	100 sheets
Auto document feeder (ADF) input capacity	35 sheets
Custom media width	76.2 - 215.9 mm
Custom media length	116 - 355.6 mm
Paper tray media types	Glossy paper, Heavy paper, Labels, Plain paper, Pre-Printed, Recycled paper, Thin paper
Paper tray media weight	60 - 105 g/m²
Non-ISO print media sizes	Legal
ISO A-series sizes (A0...A9)	A4, A5, A6
JIS B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Auto Document Feeder (ADF) media weight	64 - 90 g/m²
Display	TFT
Control type	Touch
Product color	Black, White
Display diagonal	3.7 \
Market positioning	Business
Standard interfaces	Ethernet, USB 2.0
Wi-Fi	-
Cabling technology	10/100Base-T(X)
Security algorithms	HTTPS, SSL/TLS
Ethernet LAN data rates	10, 100 Mbit/s
Mobile printing technologies	Apple AirPrint, Google Cloud Print
Sound power level (standby)	33 dB
Sound pressure level (printing)	53 dB
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (off)	0.05 W
Power consumption (standby)	70 W
Power consumption (PowerSave)	7.5 W
Power consumption (average operating)	380 W
Package depth	534 mm
Package width	602 mm
Package height	565 mm
Package weight	27900 g
Mac operating systems supported	Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion
Server operating systems supported	Windows Server 2003, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 x64, Windows Server 2012
Sustainability certificates	Nordic Swan Ecolabel, Blue Angel, ENERGY STAR

Weight and Dimensions

Depth	483 mm
Width	410 mm