Lexmark MX431adn Mono Multifunction Laser Printer

Experience powerful performance and compact design with the Lexmark MX431adn. This multifunction printer delivers up to 40 pages per minute*, plus double-sided automatic scanning, copying, faxing, and intuitive touch-screen convenience—making it the ideal choice for any small workgroup or business environment.

Full-Spectrum Security

Lexmark’s comprehensive approach to product security is built into every device. Advanced security features help keep your information safe—whether in the document, on the device, over the network, or at every point in between.

Easy Interaction

Take command of your workflow with a vibrant 7.2 cm colour touch screen. Easily print, copy, fax, and scan two-sided documents. Built-in cloud connectors let you save scans to and retrieve files from popular cloud services such as Box, Dropbox, Google Drive, and Microsoft OneDrive.

Versatility That Fits

Measuring just 339 mm (H) x 411 mm (W) x 366 mm (D), the MX431adn fits almost anywhere. Its compact size and lightweight design make it easy to set up and move as your workspace demands.

Print More, Stop Less

Enjoy a first page as fast as 5.9 seconds and output up to 40 pages per minute*. Optional Extra High Yield Unison™ toner provides up to 20,000 pages** of output, while an optional paper tray increases total input capacity to up to 900 sheets. With its durable steel frame and lifetime fuser, the MX431adn is built to last.

Save Paper, Save Energy

Automatic two-sided printing is standard, along with built-in energy-saving modes that help support EPEAT® Silver and ENERGY STAR® certification.

What’s in the Box?

• Lexmark MX431adn multifunction laser printer
• Up to 3,000 pages* starter return program toner cartridge
• Up to 40,000 pages** return program imaging unit
• Software and documentation CD
• Stability sheet and safety sheet/booklet
• Setup guide (network and local attachment)
• Statement of limited warranty / guarantee
• Power cord(s)

*Average continuous cartridge yield in one-sided (simplex) mode 3,000 standard pages. Declared yield value in accordance with ISO/IEC 19752. Actual yield will vary based on usage and environmental conditions. For more info, visit lexmark.com/yields. Ethernet, USB, or parallel cable not included. Box contents may vary by country/reseller. Subject to change without notice.

Key Specifications

• Print Technology: Monochrome Laser
• Functions: Print, Copy, Scan (Colour), Fax, Network Scan
• Display: 7.2 cm LCD touch panel
• Supported Media Sizes: A6, Oficio, A4, A5, Letter, Legal, Envelopes, Executive, Universal, DL Envelope, Folio, JIS-B5, and more
• Standard Paper Handling: 100-sheet multipurpose feeder, integrated duplex, 250-sheet input, 150-sheet output bin
• Standard Ports: Gigabit Ethernet (10/100/1000), USB 2.0 (Type B)
• Dimensions (H x W x D): 339 x 411 x 366 mm
• Weight: 12.8 kg
• Copy Speed: Up to 39 cpm (A4), Duplex: Up to 18 spm (A4)
• Print Speed: Up to 40 ppm (A4), Duplex: Up to 18 spm (A4)
• First Page Out: As fast as 5.9 seconds
• Print Resolution: 2400 IQ (2400 x 600 dpi), 600 x 600 dpi
• Scanning Bit Depth: at least 24-bit
• Levels of Grayscale: at least 256
• Scan Resolution:600 x 1200 dpi or better
• Recommended Monthly Page Volume: 800-8,000 pages
• Maximum Monthly Duty Cycle: Up to 80,000 pages
• ADF Capacity: 50 sheets
• Power Consumption: 0.1W (Hibernate), 0.9W (Sleep), 580W (Printing)
• Operating Environment: 8-80% RH, 10-32°C, up to 2896m altitude
• Certifications: ENERGY STAR®, EPEAT® Silver, Mopria Certified, and more
• Warranty: 1-Year Onsite Service, Next Business Day

Operating System Compatibility

• Microsoft Windows: Windows 11, 10, 8.1, 8, 7, Server 2022/2019/2016/2012(R2)
• Apple macOS: Via AirPrint and AirScan
• Android: Via Mopria® Print Service and Mopria Scan
• Linux: Ubuntu, Fedora, Debian, SUSE, Red Hat, OpenSUSE, and more
• Citrix and Novell: Supported

Regional Supplies Information

Lexmark printers are region-locked to accept cartridges specific to your country or region, helping to prevent counterfeit and grey market supplies. If you move to another region, contact Lexmark support to reset your printer for the new location. Learn more about Lexmark regional supplies.

ISO Standards Compliance

Print and copy speeds are measured in accordance with ISO/IEC 24734 and 24735 (ESAT). Yield figures adhere to ISO/IEC 19752. For more details, visit lexmark.com/ISOspeeds and lexmark.com/yields.

This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit. (https://www.openssl.org/)

Why Choose Genuine Lexmark Supplies?

Only genuine Lexmark supplies are designed to work perfectly with your Lexmark printer, ensuring optimal performance, reliability, and print quality. Genuine supplies also support free toner recycling through the Lexmark Cartridge Collection Program (LCCP).

* Print and copy speeds measured in accordance with ISO/IEC 24734 and ISO/IEC 24735 (ESAT).
** Average continuous mono declared yield in one-sided (simplex) mode of up to this number of pages in accordance with ISO/IEC 19752. Actual yield will vary depending on usage and other factors.
† “Recommended Monthly Page Volume” is a range that helps customers evaluate Lexmark products based on typical monthly usage. Lexmark recommends keeping usage within this range for optimal performance.
All information is subject to change without notice. Lexmark is not liable for any errors or omissions.