Introduction

Full-spectrum security
Lexmark's comprehensive approach to product security is a design and engineering mandate across our entire product portfolio. Our security features help to keep your information safe - in the document, on the device, over the network and at all points in between.

Compact and durable
Compact and lightweight, the CS431dw fits almost anywhere. But its steel frame and long-life imaging components mean that it’s also built to last.

Colour you can count on
Get rich, vibrant colour in seconds with Lexmark’s unique Unison™ toner. And easy-to-change Extra High Yield replacement cartridges give you more printing and less downtime.

Save paper, save energy
Automatic two-sided printing is standard, along with built-in energy-saving modes that help to support ratings of EPEAT® Silver and ENERGY STAR® certified. The Lexmark Cartridge Collection Programme (LCCP) and Lexmark Equipment Collection Programme (LECP) minimise waste and support recycling (availability varies by country).

Interact with ease
A 2.8 inch colour touch screen enables convenient interaction with essential system functions and task information, whilst built-in cloud connectors let you securely access files from popular cloud services Box, DropBox, Google Drive and Microsoft OneDrive.

Classic connections, wireless convenience
In addition to Gigabit Ethernet and USB connectivity, dual-band Wi-Fi makes it fast and easy for mobile users to get output via the Lexmark Mobile Print app, as well as Google Cloud Print, Mopria® and AirPrint technologies. And the Lexmark Mobile Assistant app simplifies wireless configuration.

Printing

Duplex printing mode

Auto

Print resolution colour

600 x 600 DPI

Print speed (colour, normal quality, A4/US Letter)

24.7 ppm

Colour

Y

Print technology

Laser

Duplex printing

Y

Maximum resolution

600 x 600 DPI

Print speed (black, normal quality, A4/US Letter)

24.7 ppm

Warm-up time

11 s

Time to first page (black, normal)

10.9 s

Time to first page (colour, normal)

11 s

Features

Maximum duty cycle

75000 pages per month

Recommended duty cycle

750 - 5000 pages per month

Printing colours

Black, Cyan, Magenta, Yellow

Number of print cartridges

4

Page description languages

PCL 5, PCL 6, PCLm, PostScript 3

Country of origin

China

Input & output capacity

Total number of input trays

1

Total input capacity

250 sheets

Total output capacity

100 sheets

Maximum input capacity

750 sheets

Maximum output capacity

100 sheets

Paper handling

Maximum ISO A-series paper size

A4

Paper tray media types

Card stock, Envelopes, Glossy paper, Plain paper

ISO A-series sizes (A0...A9)

A4, A5, A6

Non-ISO print media sizes

Executive, Folio

JIS B-series sizes (B0...B9)

B5

Envelopes sizes

7 3/4, 9, 10, B5, C5, DL

Ports & interfaces

Direct printing

N

USB port

Y

USB 2.0 ports quantity

1

USB connector

USB Type-B

Network

Wi-Fi

Y

Ethernet LAN

Y

Ethernet LAN data rates

10,100,1000 Mbit/s

Wi-Fi standards

Wi-Fi 5 (802.11ac)

Security algorithms

HTTPS, IPSec, LEAP, MD5, MSCHAPv2, PEAP, SNMPv3, TLS

Management protocols

DHCP, APIPA (AutoIP), BOOTP, RARP, mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL5/TLS), SMTP, Finger

Performance

Internal memory

512 MB

Maximum internal memory

512 MB

Built-in processor

Y

Sound pressure level (printing)

53 dB

Sound pressure level (duplex printing)

53 dB

Sound power level (standby)

14 dB

Design

Market positioning

Home & office

Product colour

Black, White

Built-in display

Y

Display

LCD

Display diagonal

7.11 cm (2.8")

Control type

Touch

Power

Power consumption (printing)

400 W

Power consumption (ready)

17 W

Power consumption (standby)

1.2 W

Energy Star Typical Electricity Consumption (TEC)

0.36 kWh/week

System requirements

Windows operating systems supported

Windows 10, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 8.1

Linux operating systems supported

Y

Server operating systems supported

Windows Server 2016

Other operating systems supported

Y

Operational conditions

Operating temperature (T-T)

10 - 32 °C

Operating relative humidity (H-H)

8 - 80%

Operating altitude

0 - 3048 m

Sustainability

Sustainability certificates

ENERGY STAR

Weight & dimensions

Width

411.2 mm

Depth

394.1 mm

Height

243.7 mm

Weight

16.1 kg

Packaging data

Package width

332 mm

Package depth

556 mm

Package height

519 mm

Package weight

19.1 kg

Packaging content

Cartridge(s) included

Y

Included cartridge capacity (black)

1500 pages

Included cartridge capacity (CMY)

1500 pages

Power cord included

Y