Light, compact, and fast, the MS431dw supports output up to 42 [40] pages per minute*, wired and wireless connectivity. Print more, stop less In addition to a first page as fast as 5.9 seconds and output up to 40 [38] pages per minute*, available Extra High Yield Unison™ toner provides up to 20,000 pages** of output. Add an optional paper tray that increases total input capacity up to 900 sheets for more printing and less downtime. 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. Flexible connectivity 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). Hands-off durability With its steel frame and lifetime fuser, the MS431dw is built to last. Output that fits Measuring just 8.7 inches high x 14.5 inches wide x 14.3 inches deep (222 mm high x 368 mm wide x 363 mm deep), the business-class MS431dw fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move. Print Technology Black & White Laser Printer Workgroup Size Small Workgroup Display 2-line All Points Addressable (APA) monochrome LCD display Media Sizes Supported A6, Oficio, 7 3/4 Envelope, 9 Envelope, JIS-B5, A4, Legal, A5, Letter, B5 Envelope, Statement, C5 Envelope, 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 (mm - H x W x D) 222 x 368 x 363 mm Weight 9.3 kg Packaged Size (mm - H x W x D) 280 x 410 x 420 mm Packaged Weight, kg 10.52 kg Printing Print Speed Up to: Black: 40 ppm1 (A4) Print Speed Duplex Up to: Black: 18 spm1 (A4) 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 metric: 5.0 mm of the top, bottom, right and left edges (within) 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 75 gsm bond Maximum: 900 pages 75 gsm bond 350 pages 75 gsm bond Paper Output Capacity Up to: Standard: 150 pages 75 gsm bond Maximum: 150 pages 75 gsm bond Paper Weight Range Supported gsm: 60 - 120 gsm (Standard Tray) 60 - 217 gsm (Multipurpose Feeder) Optional Paper Handling 550-Sheet Lockable Tray, 550-Sheet Tray Recommended Monthly Page Volume 800 - 8000 pages2 Maximum Monthly Duty Cycle Up to: 80000 pages per month3 OEM code: 29S0134