MFC-J3940DW Inkjet Printer

Description

General

• Functions: Print, Scan, Copy, Fax

• Type: Inkjet (A3-capable multifunction)

• Display: 3.5″ (87.6 mm) color touchscreen LCD

• Memory: 256 MB

• Dimensions: 576 × 477 × 375 mm (W × D × H)

• Weight: Approx. 23.4 kg

Print

• Speed (ISO): Up to 28 ipm (Mono and Color)

• First Page Out Time: ~4.4 s (Mono), ~4.6 s (Color)

• Revision (Draft Mode): Up to 35 ppm (Mono), 27 ppm (Color) in fast mode

• Resolution: Up to 1,200 × 4,800 dpi

• Borderless Printing: Supported for sizes including A3, A4, A6, Letter, and various photo formats

• Duplex Printing: Automatic two-sided printing up to A3

Paper Handling

• Trays:

  • Tray 1: 250 sheets

  • Tray 2: 250 sheets

  • Multipurpose Tray: 100 sheets

  • Total Standard Capacity: Up to 600 sheets

• ADF: 50-sheet capacity for scanning and copying

• Output Tray: Up to 100 A4/Letter sheets; 50 sheets for larger formats

• Supported Media: A3, A4, Letter, Ledger, Legal (Indian/Mexico), Folio, Executive, B4–B6 (region-dependent), A5–A6, photo paper, index cards, envelopes

• Custom Sizes: Supported up to 1,200 mm in length via multipurpose tray

Scan & Copy

• Copy:

  • Supports mono and color

  • Up to 999 copies per job

  • Zoom: 25%–400% (1% increments)

• Copy Resolution: Up to 1,200 × 4,800 dpi

• Scan (Flatbed): Up to 1,200 × 2,400 dpi

• ADF Scanning: 600 × 600 dpi

• Interpolated Scanning: Up to 19,200 × 19,200 dpi (Windows only)

Fax

• Modem: Super G3 (33.6 kbps)

• Transmission/Reception Memory: Up to 150 pages each

• PC Fax: Send and receive via network or USB (mono only for receiving on Mac)

Connectivity

• Interfaces:

  • USB 2.0

  • Ethernet (LAN)

  • Wi‑Fi (802.11 b/g/n) with infrastructure and Wi-Fi Direct

  • NFC (available in some regions)

• Mobile Printing: Brother iPrint&Scan, Brother Mobile Connect, AirPrint, Mopria, Google Cloud Print

• Security: WEP, WPA‑PSK (TKIP/AES), WPA2‑PSK, WPA3‑SAE; WPS setup supported

Ink & Efficiency

• Ink System: InkBenefit high-yield cartridges

• Estimated Yields:

  • Standard: ~550 pages per color (B/C/M/Y), ~550 pages Black

  • High-Yield: ~3,000 pages Black; ~1,500 pages each for C/M/Y

Power & Noise

• Power Consumption:

  • Printing: ~29 W

  • Ready: ~5.5 W

  • Sleep: ~0.9 W

  • Power Off: ~0.03 W

• Noise Level: ~50 dB(A) during operation

• Operating Conditions: 10–35°C (best at 20–33°C); Humidity 20–80% (non-condensing)