Lexmark MFP Mono Laser Printer MX431adw - Built with the essential features small workgroups need, the MX431adw multifunction supports output up to 42  pages per minute, plus double-side automatic scanning, copying and faxing. Light and compact, it fits almost anywhere and lets you connect via USB, Ethernet and Wi-Fi. The 2.8-inch (7.2 cm) color touch screen includes built-in cloud connectivity to enhance workflow. Standard two-sided printing saves paper, while Lexmark full-spectrum security helps protect your network and proprietary information. Add an optional 550-sheet paper tray or available Extra High Yield Unison toner offering up to 20,000 pages of output for longer print runs and greater media flexibility. Print Resolution (Default) 600x600; Print Resolution (Max) 2400 Image Quality.