Brother MFC-J3940DW Product Safety Guide

(Models with the fax function only)
Use caution when installing or modifying telephone lines. Never touch telephone wires or
terminals that are not insulated unless the telephone line has been unplugged from the wall
socket.
Never install telephone wiring during a thunderstorm. Never install a telephone wall socket in
a location that is wet or may become wet, for example, near a refrigerator or other appliance
that produces condensation.
Power Cord Safety:
• (Not available for Taiwan) This product is equipped with an earthed plug. This plug will only
fit into an earthed electrical socket. This is a safety feature. If you are unable to insert the
plug into the socket, ask your electrician to replace your obsolete socket. DO NOT attempt
to defeat the purpose of the earthed plug.
• DO NOT allow anything to rest on the power cord.
• DO NOT place this product where others might step on the cord.
• DO NOT place this product in a position where the cord is stretched or strained, as it may
become worn or frayed.
• DO NOT use the product or handle the cord if the cord has become worn or frayed. If
unplugging your product, DO NOT touch the damaged/frayed part.
• DO NOT pull on the middle of the AC power cord; pulling on the middle may cause the cord
to separate from the plug. Doing this might cause an electrical shock.
• DO NOT use any undesignated cables (or optional devices). Doing so may cause a fire or
injuries. Installation must be performed correctly according to the Quick Setup Guide.
• Brother strongly recommends that you DO NOT use any type of extension cord.
• This product should be positioned so that nothing pinches or constricts the power cord.
• DO NOT use cables that do not meet the cable specifications described in the Online User's
Guide: Specifications. Doing so may cause a fire or injuries.
• If the power cord is provided with this product, use ONLY the provided cord. Installation
must be performed correctly as described in the Quick Setup Guide.
CAUTION
Wait until pages have exited the product before picking them up. Failure to do this may cause
injury to your fingers by trapping them inside the machine.
DO NOT put your hand or any foreign objects into the ink insertion slot. Doing this may cause
injury.
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Brother MFC-J3940DW Specifications

General

Card reader integrated	No
Sound power level (printing)	65.4 dB
Sound pressure level (printing)	50 dB
Scan to	E-mail, E-mail Server, FTP, File, Image, OCR, USB
Scan drivers	SANE, TWAIN, WIA
Scanner type	ADF scanner
Duplex scanning	Yes
Grayscale levels	256
Input color depth	48 bit
Output color depth	24 bit
Input grayscale depth	16 bit
Output grayscale depth	8 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
N-up printing	2, 4, 9, 16
Print technology	Inkjet
Maximum resolution	4800 x 1200 DPI
Duplex printing mode	Auto/Manual
Print speed (ISO/IEC 24734) mono	28 ipm
Print speed (ISO/IEC 24734) color	21 ipm
Time to first page (black, normal)	4.4 s
Time to first page (color, normal)	4.6 s
Print speed (black, normal quality, A4/US Letter)	- ppm
Display	LCD
Control type	Buttons, Touch
Product color	Gray
Display diagonal	3.5 \
Market positioning	Home & office
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technology	10/100Base-T(X)
Security algorithms	802.1x RADIUS, APOP, SMTP-AUTH, SNMPv3, SSL/TLS
Ethernet LAN data rates	10, 100 Mbit/s
Mobile printing technologies	Apple AirPrint, Brother iPrint & Scan, Google Cloud Print, Mopria Print Service
Printing colors	Black, Cyan, Magenta, Yellow
Duplex functions	Copy, Fax, Print, Scan
Maximum duty cycle	- pages per month
Number of print cartridges	4
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	999 copies
N-in-1 copy function (N=)	2, 4
Time to first copy (black, normal)	5 s
Time to first copy (color, normal)	6 s
Package depth	561 mm
Package width	681 mm
Package height	493 mm
Package weight	26600 g
Quantity per pack	1 pc(s)
Paper input type	Paper tray
Total input capacity	650 sheets
Paper tray 1 input capacity	250 sheets
Multi-Purpose tray input capacity	100 sheets
Auto document feeder (ADF) input capacity	50 sheets
Cables included	Phone
Faxing	Color faxing
Fax memory	150 pages
Modem speed	33.6 Kbit/s
Fax forwarding to	E-mail, Fax, PC
Fax speed dialing (max numbers)	150
AC input voltage	220 - 240 V
Power consumption (off)	0.03 W
Power consumption (sleep)	0.9 W
Power consumption (copying)	29 W
Power consumption (standby)	6 W
Envelopes sizes	Com-10, DL, Monarch
Photo paper sizes	9x13, 10x15, 13x18 cm
Custom media width	105 - 297 mm
Custom media length	148 - 431.8 mm
Paper tray media types	Coated paper, Envelopes, Glossy paper, Photo paper, Plain paper, Recycled paper
ISO A-series sizes (A0...A9)	A3, A4, A5, A6
Maximum ISO A-series paper size	A3
Multi-Purpose Tray media weight	64 - 220 g/m²
Auto Document Feeder (ADF) media weight	64 - 120 g/m²
Mac operating systems supported	Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 10.9 Mavericks, Mac OS X 11.0 Big Sur
Other operating systems supported	ChromeOS
Server operating systems supported	Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
Windows operating systems supported	Windows 10, Windows 7, Windows 8, Windows 8.1

Weight and Dimensions

Depth	477 mm
Width	576 mm
Height	375 mm