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.

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
Take command of printing, copying, faxing and automatic two-sided scanning with a 7,2-cm colour touch screen. It not only supports convenient interaction with essential system functions and task information, it also includes built-in cloud connectors to help you to save scans to and retrieve 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.

Compact and durable
Compact and lightweight, the CX431adw 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.

Specification

Certificates
Certification	ENERGY STAR, ICES-003 Class B, BSMI Class B, US FDA, UL 60950-1, FCC Class B, cUL CAN/CSA-C22.2 60950-1, CB EN/IEC 60950-1, CB EN/IEC 60825-1, CE DoC (EN 62301 Class B, EN 62311, CE EN/IEC 60950-1, CE EN/IEC 60825-1, EN 61000-3, EN 55022 Class B, EN 55024, UL), EFTA (CE), KCC, CCC, CECP, CEL, C-tick DoC, UL-AR, KC mark, UL GS mark, UCRF, EC 1275, DE-UZ 205, CNS-13438/14336, Wi-Fi CERTIFIED, China Green Product (CGP)
Copying
Duplex copying	Yes
Copying	Colour copying
Maximum copy resolution	600 x 600 DPI
Copy speed (black, normal quality, A4)	24.7 cpm
Copy speed (colour, normal quality, A4)	24.7 cpm
Time to first copy (black, normal)	12.1 s
Time to first copy (colour, normal)	13.3 s
Copier resize	25 - 400%
Design
Product colour	Black, White
Control type	Touch
Display diagonal	7.11 cm (2.8")
Display	LCD
Built-in display	Yes
Fax
Duplex faxing	Yes
Fax transmission speed	3 sec/page
Modem speed	0.032 Kbit/s
Features
Recommended duty cycle	750 - 5000 pages per month
Maximum duty cycle	75000 pages per month
Duplex functions	Print
Number of print cartridges	4
Printing colours	Black, Cyan, Magenta, Yellow
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
Auto document feeder (ADF)	Yes
Auto document feeder (ADF) input capacity	50 sheets
Auto document feeder (ADF) output capacity	50 sheets
Maximum input capacity	750 sheets
Maximum output capacity	100 sheets
Network
Wi-Fi	Yes
Ethernet LAN	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s
Wi-Fi standards	Wi-Fi 5 (802.11ac)
Security algorithms	IPSec, LEAP, MD5, MSCHAPv2, PEAP, SNMPv3, TLS, TTLS
Mobile printing technologies	Apple AirPrint
Operational conditions
Operating altitude	0 - 3048 m
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	8 - 80%
Packaging content
Cartridge(s) included	Yes
Included cartridge capacity (black)	1500 pages
Included cartridge capacity (CMY)	1500 pages
Cables included	AC
Packaging data
Package depth	556 mm
Package height	519 mm
Package weight	22.7 kg
Package width	440 mm
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
JIS B-series sizes (B0...B9)	B5
Envelopes sizes	9, 10, B5, C5, DL
Performance
Maximum internal memory	1024 MB
Card reader integrated	No
Internal memory	1024 MB
Built-in processor	Yes
Processor frequency	1000 MHz
Processor cores	2
Sound pressure level (printing)	52 dB
Sound pressure level (duplex printing)	52 dB
Ports & interfaces
Direct printing	Yes
USB port	Yes
USB connector	USB Type-A / USB Type-B
USB 2.0 ports quantity	2
Power
Energy Star Typical Electricity Consumption (TEC)	0.37 kWh/week
Power consumption (sleep)	1.3 W
Power consumption (ready)	17.5 W
Power consumption (scanning)	21 W
Power consumption (copying)	395 W
Power consumption (printing)	400 W
Power consumption (average operating)	400 W
Printing
Duplex printing mode	Auto
Print resolution colour	600 x 600 DPI
Print resolution black	600 x 600 DPI
Print technology	Laser
Printing	Colour printing
Duplex printing	Yes
Maximum resolution	600 x 600 DPI
Print speed (black, normal quality, A4/US Letter)	24.7 ppm
Print speed (colour, normal quality, A4/US Letter)	24.7 ppm
Print speed (black, draft quality, A4/US Letter)	24.7 ppm
Warm-up time	11 s
Time to first page (black, normal)	10.8 s
Time to first page (colour, normal)	11 s
Scanning
Duplex scanning	Yes
Scanning	Colour scanning
Optical scanning resolution (black)	600 x 600 ppi
Optical scanning resolution (colour)	600 x 600 ppi
Maximum scan area	216 x 356 mm
Scanner type	Flatbed & ADF scanner
Scan technology	CIS
Scan to	E-mail, FTP, PC, USB
Image formats supported	JPEG, JPG, TIFF
Document formats supported	PDF
Sustainability
Sustainability certificates	ENERGY STAR
System requirements
Other operating systems supported	Yes
Linux operating systems supported	Yes
Windows operating systems supported	Windows 10, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 8.1, Windows 8.1 x64
Weight & dimensions
Weight	19.4 kg
Height	344.4 mm
Depth	394.1 mm
Width	411.2 mm

Features

Laser Colour printing

600 x 600 DPI

Printing colours: Black, Cyan, Magenta, Yellow

A4 24.7 ppm

Colour copying Colour scanning

Apple AirPrint

Direct printing

USB port Wi-Fi Ethernet LAN

Internal memory: 1024 MB Built-in processor 1000 MHz

19.4 kg