Brother MFC-J3940DW User Manual

Reset the Network Settings to Factory Default ................................................................................ 325
Security .............................................................................................................................................. 326
Before Using Network Security Features ................................................................................................... 327
Configure Certificates for Device Security ................................................................................................. 328
Supported Security Certificate Features .......................................................................................... 329
Step by Step Guide for Creating and Installing a Certificate ............................................................ 330
Create a Self-signed Certificate ....................................................................................................... 331
Create CSR and Install a Certificate from a Certificate Authority (CA) ............................................ 332
Import and Export the Certificate and Private Key ........................................................................... 336
Import and Export a CA Certificate................................................................................................... 339
Manage Multiple Certificates ............................................................................................................ 342
Use SSL/TLS ............................................................................................................................................. 343
Introduction to SSL/TLS ................................................................................................................... 344
Manage Your Network Machine Securely Using SSL/TLS............................................................... 347
Print Documents Securely Using SSL/TLS ...................................................................................... 352
Use SNMPv3.............................................................................................................................................. 354
Manage Your Network Machine Securely Using SNMPv3 ............................................................... 355
Use IPsec................................................................................................................................................... 357
Introduction to IPsec......................................................................................................................... 358
Configure IPsec Using Web Based Management ............................................................................ 359
Configure an IPsec Address Template Using Web Based Management ......................................... 361
Configure an IPsec Template Using Web Based Management ....................................................... 363
Use IEEE 802.1x Authentication for a Wired or a Wireless Network ......................................................... 371
What Is IEEE 802.1x Authentication? .............................................................................................. 372
Configure IEEE 802.1x Authentication for a Wired or a Wireless Network Using Web Based
Management (Web Browser)............................................................................................................ 373
IEEE 802.1x Authentication Methods............................................................................................... 375
Use Secure Function Lock 3.0 ................................................................................................................... 376
Before Using Secure Function Lock 3.0........................................................................................... 377
Configure Secure Function Lock 3.0 Using Web Based Management ............................................ 378
Scan Using Secure Function Lock 3.0 ............................................................................................. 379
Configure Public Mode for Secure Function Lock 3.0 ...................................................................... 380
Additional Secure Function Lock 3.0 Features................................................................................. 381
Register an External IC Card Reader............................................................................................... 382
Send or Receive an Email Securely........................................................................................................... 383
Configure Email Sending or Receiving Using Web Based Management......................................... 384
Send an Email with User Authentication .......................................................................................... 385
Send or Receive an Email Securely Using SSL/TLS ....................................................................... 386
Administrator..................................................................................................................................... 387
Network Features....................................................................................................................................... 388
Security Features ....................................................................................................................................... 389
Network Security .............................................................................................................................. 390
User Authentication .......................................................................................................................... 392
Brother Management Tools ........................................................................................................................ 393
Mobile Connect ................................................................................................................................. 394
AirPrint ....................................................................................................................................................... 395
AirPrint Overview.............................................................................................................................. 396
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iv

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