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Specifications

General Specifications

Printer Type

Inkjet

Print Head
Mono

Piezo with 420 nozzles x 1

Colour

Piezo with 420 nozzles x 3

Memory Capacity
  • 256 MB

LCD (liquid crystal display) *1
  • MFC-J3540DW

    2.7 in. (67.5 mm) TFT Colour Touchscreen LCD

  • MFC-J3940DW

    3.5 in. (87.6 mm) TFT Colour Touchscreen LCD

Power Source

AC 220 to 240 V 50/60 Hz

Power Consumption *2

  • MFC-J3540DW

    Copying *3: Approx. 29 W

    Ready *4: Approx. 5 W

    Sleep *4: Approx. 0.9 W

    Power Off *4 *5: Approx. 0.03 W

  • MFC-J3940DW

    Copying *3: Approx. 29 W

    Ready *4: Approx. 5.5 W

    Sleep *4: Approx. 0.9 W

    Power Off *4 *5: Approx. 0.03 W

Dimensions
  • MFC-J3540DW

    image

  • MFC-J3940DW

    image

Weights
  • MFC-J3540DW

    19.8 kg

  • MFC-J3940DW

    23.4 kg

Noise Level
Sound Pressure *6
Operating
  • Printing

    50.0 dB (A) (Approx.)

  • Copying (using the scanner glass)

    51.5 dB (A) (Approx.)

Temperature
Operating

10 to 35°C

Best Print Quality

20 to 33°C

Humidity
Operating

20 to 80% (without condensation)

Best Print Quality

20 to 80% (without condensation)

Automatic Document Feeder (ADF)

Up to 50 pages

Paper: 80 gsm

*1
Measured diagonally.
*2
Measured when the machine is connected to the USB interface. Power consumption varies slightly depending on the usage environment or part wear.
*3
When using ADF, single-sided printing and scanning, resolution: standard / document: ISO/IEC 24712 printed pattern.
*4
Measured according to IEC 62301 Edition 2.0.
*5
Even when the machine is turned off, it will automatically turn itself on periodically for print head maintenance, and then turn itself off.
*6
Noise depends on printing conditions.

Document Size Specifications

Document Size
ADF Width

105 to 297 mm

ADF Length *1

148 to 431.8 mm

Scanner Glass Width

Max. 297 mm

Scanner Glass Length

Max. 431.8 mm

*1
Up to 900 mm when using the long paper function.

Print Media Specifications

Paper Input Paper Tray #1 Paper Type *1

Plain Paper, Inkjet Paper (coated paper), Glossy Paper, Recycled Paper

Paper Size

(Landscape)

A4, Letter, Executive, B5 (JIS)

(Portrait)

A3, Ledger, B4 (JIS), Legal, Mexico Legal, India Legal, Folio, A5, B6 (JIS), A6, Envelopes (C5, Com-10, DL, Monarch), Photo (10 x 15 cm), Photo L (9 x 13 cm), Photo 2L (13 x 18 cm), Index card (13 x 20 cm), 16K (195 x 270 mm)

Maximum Paper Capacity

Up to 250 sheets of 80 gsm plain paper

Paper Tray #2

(MFC-J3940DW)

Paper Type

Plain Paper, Recycled Paper

Paper Size

(Landscape)

A4, Letter

(Portrait)

A3, Ledger, B4 (JIS), Legal, Mexico Legal, India Legal, Folio

Maximum Paper Capacity

Up to 250 sheets of 80 gsm plain paper

Multi-purpose tray (MP tray) *2

(MFC-J3940DW)

Paper Type *1

Plain Paper, Inkjet Paper (coated paper), Glossy Paper, Recycled Paper

Paper Size / Maximum Paper Capacity

(Landscape)

A4, Letter, Executive, B5 (JIS)

(Portrait)

A3, Ledger, B4 (JIS), Legal, Mexico Legal, India Legal, Folio, A5, B6 (JIS), A6, Envelopes (C5, Com-10, DL, Monarch), Photo (10 x 15 cm), Photo L (9 x 13 cm), Photo 2L (13 x 18 cm), Index card (13 x 20 cm), 16K (195 x 270 mm)

Up to 100 sheets of 80 gsm Plain Paper

Long Paper (Width: 88.9 - 297 mm / Height: 431.9 - 1200 mm)

Up to 1 sheet

Manual Feed Slot

(MFC-J3540DW)
Paper Type *1

Plain Paper, Inkjet Paper (coated paper), Glossy Paper, Recycled Paper

Paper Size

(Landscape)

A4, Letter, Executive, B5 (JIS)

(Portrait)

A3, Ledger, B4 (JIS), Legal, Mexico Legal, India Legal, Folio, A5, B6 (JIS), A6, Envelopes (C5, Com-10, DL, Monarch), Photo (10 x 15 cm), Photo L (9 x 13 cm), Photo 2L (13 x 18 cm), Index card (13 x 20 cm), 16K (195 x 270 mm)

Maximum Paper Capacity

Up to 1 sheet

Paper Output *1
  • Up to A4/Letter size paper

    Up to 100 sheets of 80 gsm Plain Paper (face up print delivery to the output paper tray)

  • Over A4/Letter size paper

    Up to 50 sheets of 80 gsm Plain Paper (face up print delivery to the output paper tray)

*1
For glossy paper, remove any printed pages from the output paper tray immediately to avoid smudging.
*2
We recommend using the MP tray for glossy paper.

Fax Specifications

Compatibility
  • ITU-T Super Group 3

Modem Speed
  • Automatic Fallback: 33,600 bps

Scanning Width

(Single-sided document)

288 mm (A3)

Scanning Width and Length

(2-sided document)

(MFC-J3940DW)

Width: 288 mm (A3) (ADF)

Length: 425.8 mm (ADF)

Printing Width

291 mm (A3)

Greyscale

Monochrome: 8 bit (256 levels)

Colour: 24 bit (8 bit per colour/ 256 levels)

Resolution

(Horizontal)

203 dpi

Resolution

(Vertical)

Standard:

98 dpi (Mono)

196 dpi (Colour)

Fine:

196 dpi (Mono)

196 dpi (Colour)

Superfine:

392 dpi (Mono)

Photo:

196 dpi (Mono)

Address Book

100 names x 2 numbers or Email addresses

Groups

Up to 6

Broadcasting

250 (200 Address Book/50 Manual Dial)

Automatic Redial

3 times at 5 minute intervals

Memory Transmission

Up to 150 pages *1

Out of Paper Reception

Up to 150 pages *1

*1
‘Pages’ refers to the ‘ITU-T Test Chart #1’ (a typical business letter, Standard resolution, MMR code).

Copy Specifications

Colour/Monochrome

Yes/Yes

Copy Width

291 mm *1

Multiple Copies

Stacks/Sorts up to 999 pages

Enlarge/Reduce

25% to 400% (in increments of 1%)

Resolution

Prints up to 1200 × 4800 dpi

Automatic 2-sided

(MFC-J3940DW)

Paper Type

Plain Paper, Recycled Paper

Paper Size

A3, Ledger, Legal, Mexico Legal, India Legal, Folio, A4, A5, Letter

*1
When copying on A3 size paper.

USB Flash Drive Specifications

Compatible Media

USB Flash drive *1

JPEG Print
Resolution

Up to 1200 x 4800 dpi

Paper Type

Plain Paper, Inkjet Paper (coated paper), Glossy Paper, Recycled Paper

Paper Size

A4, Letter, A3, Ledger, Photo (10 x 15 cm), Photo 2L (13 x 18 cm)

File Format

JPEG (Progressive JPEG format is not supported)

Scan to Media
File Format

JPEG, PDF (Colour, Grey)

TIFF, PDF (Monochrome)

*1
USB Flash drive is not included. Full-Speed USB 2.0. USB Mass Storage standard. Supported formats: FAT12/FAT16/FAT32/exFAT

Scanner Specifications

Colour/Monochrome

Yes/Yes

TWAIN Compliant

Yes

(Windows 7 SP1 / Windows 8.1 / Windows 10)

WIA Compliant

Yes

(Windows 7 SP1 / Windows 8.1 / Windows 10)

Colour Depth

48 bit colour processing (Input)

24 bit colour processing (Output)

Greyscale

16 bit colour processing (Input)

8 bit colour processing (Output)

Resolution

Up to 19200 × 19200 dpi (interpolated) *1

Up to 1200 × 2400 dpi (optical) (from Scanner Glass)

Up to 600 × 600 dpi (optical) (from ADF)

Scanning Width and Length

(Single-sided document)

(Scanner Glass)

Width: Up to 295 mm

Length: Up to 429.8 mm

(ADF)

Width: Up to 295 mm

Length: Up to 429.8 mm

Scanning Width and Length

(2-sided document)

(MFC-J3940DW)

Width: Up to 295 mm (ADF)

Length: Up to 429.8 mm (ADF)

*1
Maximum 1200 × 1200 dpi scanning with the WIA driver in Windows 7 SP1, Windows 8.1 and Windows 10 (resolutions up to 19200 × 19200 dpi can be selected using the scanner utility).

Printer Specifications

Resolution

Up to 1200 × 4800 dpi *1

Printing Width *2

291 mm

Borderless *3: 297 mm

Borderless

A4, Letter, A3, Ledger, A6, Photo (10 x 15 cm), Photo L (9 x 13 cm), Photo 2L (13 x 18 cm), Index card (13 x 20 cm)

Automatic 2-sided
Paper Type

Plain Paper, Recycled Paper

Paper Size

A3, Ledger, B4 (JIS), Legal, Mexico Legal, India Legal, Folio, A4, A5, Letter, Executive, B5 (JIS), B6 (JIS), 16K (195 x 270 mm)

Print Speed

See your model's page on your local Brother website.

*1
Data is based on Brother lab test results and may vary from actual due to usage environment and settings. Best print resolution 1200x4800 (measured with print quality set to best mode and media selected as glossy photo paper)
*2
When printing on A3 size paper.
*3
When the Borderless feature is set to On.

Interface Specifications

USB *1 *2

Use a USB 2.0 interface cable that is no longer than 2 m.

LAN

Use an Ethernet UTP cable category 5 or greater.

Wireless LAN

IEEE 802.11a/b/g/n (Infrastructure)

IEEE 802.11a/g/n (Wi-Fi Direct)

NFC

(MFC-J3940DW)

Yes

*1
Your machine has a USB 2.0 Hi-Speed interface. The machine can also be connected to a computer that has a USB 1.1 interface.
*2
Third party USB ports are not supported.

Network Specifications

image

You can connect your machine to a network for Network Printing, Network Scanning, PC-Fax Send, and PC-Fax Receive (Windows only).

Network Security (Wired)

APOP, SMTP-AUTH, SSL/TLS (IPPS, HTTPS, FTPS, SMTP, POP3, IMAP4), SNMP v3, 802.1x (EAP-MD5, EAP-FAST, PEAP, EAP-TLS, EAP-TTLS), Kerberos, IPsec

Network Security (Wireless)

APOP, SMTP-AUTH, SSL/TLS (IPPS, HTTPS, FTPS, SMTP, POP3, IMAP4), SNMP v3, 802.1x (EAP-FAST, PEAP, EAP-TLS, EAP-TTLS), Kerberos, IPsec

Wireless Network Security *1

WEP 64/128 bit, WPA-PSK (TKIP/AES), WPA2-PSK (TKIP/AES), WPA3-SAE (AES)

Wireless Setup Support Utility WPS

Yes

*1
Wi-Fi Direct supports WPA2-PSK (AES) only.

Computer Requirements Specifications

Supported Operating Systems And Software Functions

Computer Platform & Operating System Version PC Interface Processor Hard Disk Space to Install *1

USB *2

Wired LAN WLAN (Wi-Fi) For Drivers For Applications (Including Drivers)

Windows Operating System

Windows 7 SP1 *3 *4 *5

Windows 8.1 *3 *4

Printing

PC Fax *6

Scanning

32 bit (x86) or 64 bit (x64) processor

650 MB

1.3 GB

Windows 10 Home *3 *4

Windows 10 Pro *3 *4

Windows 10 Education *3 *4

Windows 10 Enterprise *3 *4

Windows Server 2008 *5

 

Printing

Scanning

Printing

50 MB

N/A

Windows Server 2008 R2 *5

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

Windows Server 2019

64 bit (x64) processor

Mac Operating System

 *7

macOS v10.14.6

macOS v10.15.x

macOS v11

Printing

PC-Fax (Send) *6 *8

Scanning

64 bit processor

N/A

550 MB

*1
An Internet connection is required to install the software if the Brother installation disc is not supplied.
*2
Third party USB ports are not supported.
*3
For WIA, 1200 x 1200 resolution. Brother Scanner Utility enables enhancing the resolution up to 19200 x 19200 dpi.
*4
Nuance™ PaperPort™ 14SE supports Windows 7 SP1, Windows 8.1, Windows 10 Home, Windows 10 Pro, Windows 10 Education and Windows 10 Enterprise.
*5
Windows 7 SP1 / Windows Server 2008 / Windows Server 2008 R2 supported by Extend Security Updates until Jan 10, 2023.
*6
PC-Fax supports black and white only.
*7

Mac OS Disclaimer

AirPrint capable: Printing or scanning via macOS requires the use of AirPrint. Mac drivers are not provided for this machine.

*8
AirPrint only.

For the latest driver updates, go to your model's Downloads page at support.brother.com.

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