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Brother MFC-J3940DW User Manual

Brother MFC-J3940DW
575 pages
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Difficulties Suggestions
If you are using a telephone answering machine (External TAD mode) on the
same line as the Brother machine, make sure your answering machine is set up
correctly.
See Related Information: Connect an External TAD.
1. Connect the external TAD as shown in the following topic:
See Related Information: External TAD (Telephone Answering Device).
2. Set your answering machine to answer in one or two rings.
3. Record the outgoing message on your answering machine.
Record five seconds of silence at the beginning of your outgoing message.
Limit your speaking to 20 seconds.
End your outgoing message with your Remote Activation Code for people
sending manual faxes. For example: “After the beep, leave a message or
press *51 and Start to send a fax.”
4. Set your answering machine to answer calls.
5. Set your Brother machine’s Receive Mode to External TAD.
See Related Information: Choose the Correct Receive Mode.
Make sure your Brother machine’s Fax Detect feature is turned On. Fax Detect is
a feature that allows you to receive a fax even if you answered the call on an
external or extension telephone.
See Related Information: Set Fax Detect.
If you often get transmission errors due to possible interference on the telephone
line or if you are using a VoIP system, try changing the Compatibility setting to
Basic (for VoIP).
See Related Information: Telephone Line Interference/VoIP.
Sending Faxes
Difficulties
Suggestions
Cannot send a fax. Check all line cord connections. Make sure the telephone line cord is plugged
into the telephone wall socket and the LINE socket of the machine. Make sure
your machine has a dial tone by pressing the Hook button in Fax mode. If you
subscribe to DSL or VoIP services, contact your service provider for connection
instructions.
If you are using a VoIP system, try changing the VoIP setting to Basic (for VoIP).
This will lower modem speed and turn off Error Correction Mode (ECM).
See Related Information: Telephone Line Interference/VoIP.
Print the Transmission Verification Report and check for an error.
See Related Information: Print Reports.
Contact your administrator to check your Secure Function Lock Settings.
Ask the other party to check that the receiving machine has paper.
Poor sending quality. Try changing your resolution to Fine or S.Fine. Make a copy to check your
machine’s scanner operation. If the copy quality is poor, clean the scanner.
See Related Information: Clean the Scanner.
Transmission Verification Report
says RESULT:NG.
There is probably temporary noise or static on the line. Try sending the fax again.
If you are sending a PC-Fax message and get RESULT:NG on the Transmission
Verification Report, your machine may be out of memory.
To free up extra memory, you can turn off Fax Storage, print fax messages in
memory or cancel a delayed fax.
If the problem continues, ask the telephone company to check your telephone
line.
See Related Information: Turn Off Memory Receive.
See Related Information: Print a Fax Stored in the Machine's Memory.
447

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Brother MFC-J3940DW Specifications

General IconGeneral
Card reader integratedNo
Sound power level (printing)65.4 dB
Sound pressure level (printing)50 dB
Scan toE-mail, E-mail Server, FTP, File, Image, OCR, USB
Scan driversSANE, TWAIN, WIA
Scanner typeADF scanner
Duplex scanningYes
Grayscale levels256
Input color depth48 bit
Output color depth24 bit
Input grayscale depth16 bit
Output grayscale depth8 bit
Maximum scan resolution19200 x 19200 DPI
Optical scanning resolution1200 x 2400 DPI
N-up printing2, 4, 9, 16
Print technologyInkjet
Maximum resolution4800 x 1200 DPI
Duplex printing modeAuto/Manual
Print speed (ISO/IEC 24734) mono28 ipm
Print speed (ISO/IEC 24734) color21 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
DisplayLCD
Control typeButtons, Touch
Product colorGray
Display diagonal3.5 \
Market positioningHome & office
Wi-Fi standards802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Cabling technology10/100Base-T(X)
Security algorithms802.1x RADIUS, APOP, SMTP-AUTH, SNMPv3, SSL/TLS
Ethernet LAN data rates10, 100 Mbit/s
Mobile printing technologiesApple AirPrint, Brother iPrint & Scan, Google Cloud Print, Mopria Print Service
Printing colorsBlack, Cyan, Magenta, Yellow
Duplex functionsCopy, Fax, Print, Scan
Maximum duty cycle- pages per month
Number of print cartridges4
Copier resize25 - 400 %
Maximum copy resolution600 x 600 DPI
Maximum number of copies999 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 depth561 mm
Package width681 mm
Package height493 mm
Package weight26600 g
Quantity per pack1 pc(s)
Paper input typePaper tray
Total input capacity650 sheets
Paper tray 1 input capacity250 sheets
Multi-Purpose tray input capacity100 sheets
Auto document feeder (ADF) input capacity50 sheets
Cables includedPhone
FaxingColor faxing
Fax memory150 pages
Modem speed33.6 Kbit/s
Fax forwarding toE-mail, Fax, PC
Fax speed dialing (max numbers)150
AC input voltage220 - 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 sizesCom-10, DL, Monarch
Photo paper sizes9x13, 10x15, 13x18 cm
Custom media width105 - 297 mm
Custom media length148 - 431.8 mm
Paper tray media typesCoated 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 sizeA3
Multi-Purpose Tray media weight64 - 220 g/m²
Auto Document Feeder (ADF) media weight64 - 120 g/m²
Mac operating systems supportedMac 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 supportedChromeOS
Server operating systems supportedWindows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
Windows operating systems supportedWindows 10, Windows 7, Windows 8, Windows 8.1
Weight and Dimensions IconWeight and Dimensions
Depth477 mm
Width576 mm
Height375 mm

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