Lexmark MX431adw – multifunction printer – B/W


Get output up to 42 pages per minute*, plus double-side automatic scanning, copying, faxing, touch-screen convenience and Wi-Fi, all in the compact Lexmark MX431adw.

12 in stock



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.

What’s In the Box

  • Lexmark MX431adw multifunction laser printer
  • Setup guide or sheet (network and local attachment)
  • Software and documentation CD
  • Up to 40,000 pages** return program imaging unit
  • Up to 3,000 pages* return program toner cartridge
  • Stability sheet and safety sheet or booklet
  • Statement of limited warranty / guarantee
  • Power cord(s)


Device Type Multifunction printer
Fax Type Plain paper
Bundled Services 1 year Advanced Exchange Service
Printing Technology Laser – monochrome
Monthly Duty Cycle (max) 80000 pages
Recommended Monthly Volume 800 – 8000 pages
Display Diagonal Size 2.8″
Display Features Touch screen
Connection Availability Yes
Interface USB 2.0, LAN, Wi-Fi
Office Machine Features Scan to e-mail, scan to network, scan to FTP, scan to PC, scan to box, scan to Dropbox


Standard Memory 512 MB
Max Supported Memory 512 MB


Max Copying Speed Up to 38 ppm
Preset Enlargements 400%
Preset Reductions 25%
Automatic Duplexing Yes


Max Printing Resolution Up to 600 x 600 dpi
Max Printing Speed Up to 40 ppm
Image Enhancement Technology 2400 IQ
First Print Out Time B/W 5.9 sec


Scan Element CIS
Automatic Duplexing Yes
Optical Resolution 600 x 600 dpi

Fax Machine:

Compatibility Super G3
Max Transmission Speed 33.6 Kbps

Document & Media Handling:

Max Original Size 8.5 in x 14 in
Original Type Sheets
Document Feeder Capacity 50 sheets
Max Media Size A4/Legal
Supported Media Type Envelopes, plain paper, labels, card stock
Supported Media Sizes (List of supported sizes)
Supported Envelope Sizes (List of supported sizes)
Standard Media Capacity 350 sheets
Max Media Capacity 900 sheets
Bypass Feeder Capacity 100 sheets
Output Trays Capacity 150 sheets
Document & Media Handling Details (Details of various feeders and trays)
Speed Details (Details of printing, scanning, and copying speeds)


Interfaces 1 x USB 2.0 – 4 pin USB Type B <br> 1 x LAN – RJ-45


Power Consumption Operational 530 Watt
Power Consumption Sleep 0.8 Watt


First Copy Out Time B/W 5.9 sec
Consumables Included 1 x toner cartridge (black) – up to 3000 pages ISO/IEC 19752 <br> 1 x imaging unit – up to 40000 pages

Environmental Standards:

EPEAT Compliant EPEAT Silver
ENERGY STAR Certified Yes

Manufacturer Warranty:

Service & Support Limited warranty – 1 year – response time: next business day

Dimensions & Weight:

Width 16.2 in
Depth 14.4 in
Height 13.3 in
Weight 28.22 lbs

Dimensions & Weight (Shipping):

Shipping Width 16.5 in
Shipping Depth 18.3 in
Shipping Height 15.2 in
Shipping Weight 32.41 lbs

Environmental Parameters:

Sound Emission 14 dBA (idle) / 53 dBA (operating)
Min Operating Temperature 50 °F
Max Operating Temperature 89.6 °F
Humidity Range Operating 8 – 80%