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 keep your information safe—in the document, on the device, over the network, and at all points in between.

Connectivity central
In addition to Ethernet and USB, built-in Wi-Fi makes it easy for mobile users to get output via the Lexmark Mobile Print app, as well as Mopria®, AirPrint and Google Cloud Print. And the Lexmark Mobile Assistant app simplifies wireless configuration.

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

Versatility that fits
Measuring just 13.3 inches high x 16.2 inches wide x 14.4 inches deep (339 mm high x 411 mm wide x 366 mm deep), the business-class MX431adw fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move.

Interact with ease
Take command of printing, copying, faxing, and automatic two-sided scanning with a 2.8-inch (7.2 cm) color touch screen. It not only supports convenient interaction with essential system functions and task information, but includes built-in cloud connectors to help you save scans to and retrieve files from popular cloud services Box, DropBox, Google Drive, and Microsoft OneDrive.

Print more, stop less
In addition to a first page as fast as 5.9 seconds and output up to 42 pages per minute*, available Extra High Yield Unison™ toner provides up to 20,000 pages** of output, while an optional paper tray increases total input capacity up to 900 sheets for more printing and less downtime. And with its steel frame and lifetime fuser, the MX431adw is built to last.

General Specs
Part # 29S0500
Print Technology
Monochrome Laser
Function
Copying
Color Scanning
Printing
Network Scanning
Faxing
Workgroup Size
Small Workgroup
Display
2.8 inch (7.2 cm) LCD touch panel
Media Sizes Supported
A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Letter, Statement, Executive, Universal, DL Envelope, Folio, 10 Envelope
Included Paper Handling
100-Sheet Multipurpose Feeder, Integrated Duplex, 150-Sheet Output Bin, 250-Sheet Input
Standard Ports
USB Compatible with USB 2.0 Specification (Type B), Ethernet 10/100BaseTX (RJ-45)
Size (in. - H x W x D)
13.3 x 16.2 x 14.4 in.
Weight (lb.)
28.2 lb.
Packaged Size ( - výška x šířka x hloubka )
38,5 x 41,35 x 45,75 cm
Packaged Weight (lb.)
32.41 lb.
Copying
Copy Speed
Up to:
Black: 42 cpm1 (Letter)
Copy Speed Duplex
Up to:
Black: 18 spm1 (Letter)
Time to First Copy
As fast as:
Black: 5.9 seconds
Reduce / Enlarge Range
25 - 400 %
Faxing
Modem Speed
ITU T.30, V.34 Half-Duplex, 33.6 Kbps
Fax Transmission Speed
< 3 seconds per page
Printing
Print Speed
Up to:
Black: 42 ppm1 (Letter)
Print Speed Duplex
Up to:
Black: 18 spm1 (Letter)
Time to First Page
As fast as:
Black: 5.9 seconds
Print Resolution
Black: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi
Duplex
2-sided:
Integrated Duplex
Printable Area
0.2 inches of the top, bottom, right and left edges (within)
Scanning
Scanner Type / ADF Scan
Flatbed scanner with ADF
DADF (single pass Duplex)
Scan Area
8.5 x 14 inches (Maximum)
A4/Ltr Simplex Scan Speed
Up to:
Black: 46 / 48 sides per minute
Color: 20 / 21 sides per minute
A4/Ltr Duplex Scan Speed
Up to:
Black: 92 / 96 sides per minute
Color: 40 / 42 sides per minute
Scan Technology
CIS
Optical Scanning Resolution
up to 600 X 600 ppi (color)
Scan File Formats
Send as:
TIFF, PDF, JPEG, JPG
Scan Destinations
e-mail, USB or Network connected computer, FTP
ADF
50-Sheet Automatic Document Feeder
ADF Paper Input Capacity / ADF Paper Output Capacity
Up to: 50 pages 20 lb or 75 gsm bond
Up to: 50 pages 20 lb or 75 gsm bond
Paper Handling
Media Types Supported
Paper Labels, Card Stock, Plain Paper, Envelopes, Refer to the Paper & Specialty Media Guide
Finishing Option
No
Number of Paper Inputs
Standard: 2
Maximum: 3
Paper Input Capacity
Standard: 350 pages 20 lb or 75 gsm bond
Maximum: 900 pages 20 lb or 75 gsm bond
350 pages 20 lb or 75 gsm bond
Paper Output Capacity
Up to:
Standard: 150 pages 20 lb or 75 gsm bond
Maximum: 150 pages 20 lb or 75 gsm bond
Paper Weight Range Supported
lb.:
16 - 32 lb. (Standard Tray)
16 - 58 lb. (Multipurpose Feeder)
Optional Paper Handling
550-Sheet Tray
Recommended Monthly Page Volume
800 - 8000 pages2
Maximum Monthly Duty Cycle
Up to:
80000 pages per month3
Cartridges & Imaging
Laser Cartridge Yields
up to:
3,0004-page Cartridge
15,0004-page High Yield Cartridge
20,0004-page Black Extra High Yield Cartridge
Imaging Unit Estimated Yield
Up to:
40000 pages, based on 3 average letter/A4-size pages per print job and ~ 5% coverage5
Cartridge(s) Shipping with Product
3,0004-page Black Return Program Toner Cartridge
Replacement Cartridges:
Product functions only with replacement cartridges designed for use in a specific geographical region. See www.lexmark.com/regions for more details.
Hardware
Processor Speed
Dual Core, 1.0 GHz
Memory
Standard: 512 MB
Maximum: 512 MB
Hard Disk
Not Available
Printer Languages
Standard:
PCL 5c Emulation, PCL 5e Emulation, PCL 6 Emulation, PostScript 3 Emulation, Direct Image
Fonts and Symbol Sets
2 PCL bitmap fonts, For more information, refer to the Technical Reference., 89 scalable PostScript fonts, 3 of 9 scalable PCL 5e fonts in Narrow, Regular and Wide, 89 scalable PCL fonts
Touch Screen Display
Yes
Connectivity
Direct USB
Yes
Ethernet Network
Yes
Wireless
Yes
Network Protocol Support
TCP/IP IPv6, IPSEC w/ IPv4, IPSEC w/ IPv6, TCP/IP IPv4, ICMP, TCP, IGMP, UDP, 802.1x
Network Printing Methods
LPR/LPD, Microsoft Web Services WSD, FTP, TFTP, Enhanced IP (Port 9400), IPP 1.0, 1.1, 2.0 (Internet Printing Protocol)
Network Management Protocols
DHCP, BOOTP, RARP, mDNS, IGMP, WINS, DDNS, SNMPv3, SNMPv1, SNMPv2c, Telnet, NTP, ICMP, HTTP, DNS, ARP, HTTPs (SSL6/TLS), SMTP, Finger
Network Security
SNMPv3, 802.1x Authentication: MD5, MSCHAPv2, LEAP, PEAP, TLS, TTLS
Supported Operating Systems
Microsoft Windows Operating Systems Supported
Windows 10, Windows 8.1, Windows 8, Windows 8 x64, Windows 7 x64, Windows 8.1 x64, Windows 7
Apple Operating Systems Supported
Support is provided through AirPrint and AirScan only
Linux Operating Systems Supported