Brother MFC-9140CDN Service Manual

3-1
Confidential
CHAPTER 3 DISASSEMBLY AND
ASSEMBLY
1. SAFETY PRECAUTIONS
To avoid creating secondary problems by mishandling, follow the warnings and precautions
below during maintenance work.
Note:
- Be careful not to lose screws, washers, or other parts removed.
- Be sure to apply grease to the gears and applicable positions specified in this chapter.
- When using soldering irons or other heat-generating tools, take care not to accidentally
damage parts such as wires, PCBs and covers.
- Static electricity charged in your body may damage electronic parts. When transporting
PCBs, be sure to wrap them in conductive sheets.
- When replacing the PCB and all the other related parts, put on a grounding wrist band and
perform the job on a static mat. Also take care not to touch the conductor sections on the
flat cables or on the wire harness.
- After disconnecting flat cables, check that each cable is not damaged at its end or
shortcircuited.
- When connecting flat cables, do not insert them at an angle. After insertion, check that the
cables are not at an angle.
- When connecting or disconnecting cable harness, hold the connector body, not the cables.
If the connector has a lock, release the connector lock first to release it.
- After a repair, check not only the repaired portion but also handling of harnesses. Also
check that other related portions are functioning properly before operational checks.
- Violently closing the joint cover without mounting the toner cartridge and the drum unit can
damage this main body.
- After an assembly, recommend the operation of "dielectric strength voltage check" and
"continuity check".
- There must be no damage in the insulation sheet.
WARNING
Some parts inside the machine are extremely hot immediately after the machine is used.
When opening the joint cover ASSY or back cover to access any parts inside the machine,
never touch the shaded parts shown in the following figures.

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