DS-640

Specifications

General Specifications

Memory Capacity
Standard

DSmobile DS-640: 128 MB

DSmobile DS-740D: 256 MB

DSmobile DS-940DW: 512 MB

Power Source

DSmobile DS-640/DSmobile DS-740D: USB bus-power

DSmobile DS-940DW: USB bus-power/rechargeable Li-ion battery

Approx. Power Consumption *1
Scanning

DSmobile DS-640: 2.3 W

DSmobile DS-740D: 2.9 W

DSmobile DS-940DW:

  • 4.4 W (Wi-Fi Mode)
  • 3.6 W (USB Mode)

Ready

DSmobile DS-640: 1.3 W

DSmobile DS-740D: 1.4 W

DSmobile DS-940DW *2:

  • 2.2 W (Wi-Fi Mode)
  • 1.5 W (USB Mode)

Power Down

DSmobile DS-640: 0.01 W

DSmobile DS-740D: 0.01 W

DSmobile DS-940DW *2: 0.11 W

Dimensions

DSmobile DS-640:

image

DSmobile DS-740D:

image

DSmobile DS-940DW:

image

Approx. Weights

DSmobile DS-640: 466 g

DSmobile DS-740D: 646 g

DSmobile DS-940DW: 699 g

Temperature
Operating

5°C to 35°C *3

Storage

-20°C to 60°C

Humidity
Operating

20% to 80%

Storage

10% to 90%

*1
Measured when the machine is connected to the USB interface.
*2
(DSmobile DS-940DW) Measured when the rechargeable Li-ion battery is fully charged.
*3
(DSmobile DS-940DW) Charging stops when the temperature of the specifications is exceeded.

Document Specifications

Paper Type
Photo, Paper, Card (embossed), Business Card, Receipt
Document Size

DSmobile DS-640:

  • 86.4 mm x 50.8 mm to 1828.8 mm x 215.9 mm

DSmobile DS-740D/DSmobile DS-940DW:

  • Single-sided Scan

    86.4 mm x 50.8 mm to 1828.8 mm x 215.9 mm

  • 2-sided Scan

    86.4 mm x 50.8 mm to 406.48 mm x 215.9 mm

  • Output Guide

    105 mm x 74 mm to 297 mm x 215.9 mm

Scanner Specifications

Colour/Monochrome

Yes/Yes

TWAIN Compliant
Windows

Windows 7 (SP1) / Windows 8.1 / Windows 10

Windows Server 2012 / Windows Server 2012 R2 / Windows Server 2016 / Windows Server 2019

WIA Compliant
Windows

Windows 7 (SP1) / Windows 8.1 / Windows 10

ICA Compliant
Mac

macOS v10.12.x / v10.13.x / v10.14.x *1

Colour Depth
Input

48 bit colour processing

Output

24 bit colour processing

Resolution
Interpolated

Up to 1200 x 1200 dpi

Optical

Up to 600 x 600 dpi

Scanning Width

Up to 215.9 mm

Greyscale

256 levels

Max. Speed

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

*1
For the latest macOS driver updates, visit support.brother.com.

Rechargeable Li-ion Battery (DSmobile DS-940DW)

Charging Time
2.6 hours
Continuous Standby Time
10 minutes (when the Auto Power Off feature is active)
Scannable Number of Sheets (WLAN ON)
200 sheets
Scannable Number of Sheets (WLAN OFF)
320 sheets
image
  • The numbers described in the Rechargeable Li-ion Battery table may differ depending on the documents scanned and on environmental factors, such as temperature and the charging and discharging method.
  • For longer battery life, turn the scanner off when you are not using it.

Interface Specifications

USB

USB 3.0 *1

Use a USB 3.0 cable (Standard A/Micro B) or USB 2.0 interface cable (Standard A/Micro B) that is no more than 2.0 metres long.

Memory Card

(DSmobile DS-940DW)

microSD memory card: 2 GB - 32 GB

Wireless LAN

(DSmobile DS-940DW)

IEEE 802.11b/g/n

*1

Your machine has a USB 3.0 interface. The machine can also be connected to a computer that has a USB 2.0 interface.

Third-party USB ports are not supported.

Network Specifications (DSmobile DS-940DW)

Wireless Network Security

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

Setup Support Utility

WPS

WLAN Assistant

Supported Protocols and Security Features (DSmobile DS-940DW)

Protocol (IPv4)

DHCP, APIPA (Auto IP), WINS/NetBIOS, DNS Resolver, mDNS, SNMPv1/v2c, ICMP, Web Services (Scan), HTTP/HTTPS server, LLMNR responder, SNTP Client

Protocol (IPv6)

RA, DNS Resolver, mDNS, LLMNR responder, Web Services (Scan), SNTP Client, HTTP/HTTPS server, ICMPv6

Network Security (Wireless)

SSL/TLS (HTTPS)

Wireless Certification

Wi-Fi Certification Mark License (WPA™/WPA2™ - Personal), Wi-Fi Protected Setup™ (WPS) Identifier Mark License