Monochrome Laser. Duplex (2-sided) Printing: Integrated Duplex. Print Speed: Up to 40 ppm. Recommended Monthly Page Volume: 800 - 8,000 Pages. Light, compact and fast, the MS431dn supports output of up to 40 pages per minute, multiple connectivity options and an optional 550-sheet paper tray.. Print more, stop less. In addition to a first page as fast as 5.9 seconds and output of up to 40 pages per minute, optional Extra High Yield Unison™ toner provides up to 20,000 pages of output. Add an optional paper tray that increases total input capacity by up to 900 sheets for more printing and less downtime.. Solid performance, flexible connectivity. Get your first page as fast as 5.9 seconds, and power through challenging jobs with a 1-GHz dual-core processor and 256 MB of memory. Connect via USB or Ethernet to give your whole team access.. 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.. Hands-off durability. With its steel frame and lifetime fuser, the MS431dn is built to last.. 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).. Output that fits. Measuring just 222 mm high x 368 mm wide x 366 mm deep, the business-class MS431dn fits almost anywhere. Its compact size and light weight make it easy to set up and easy to move.. Printing. Time to first page (black, normal). 5.9 s. Print speed (black, normal quality, A4/US Letter). 40 ppm. Maximum resolution. 600 x 600 DPI. Duplex printing mode. Auto. Duplex printing. Yes. Print technology. Las

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