The Work Force Pro WP-4595 DNF network-ready 4-in-1 with fax & double-sided printing. Designed to suit the modern office, both inside & out, this is the ultimate professional tool. It offers a 50% lower cost per page & faster printing for those small print jobs, compared to the top 10 best-selling colour lasers. & when printing double-sided it’s twice as fast as the nearest leading competitor. 16ppm Mono Print 256MB RAM 11ppm Colour Print USB (Universal Serial Bus) & Network Windows & Mac 4800 x 1200 dpi Print 250 Sheet Input Tray 33.6 Kbps Fax 80 Sheet Multi-Purpose Tray Automatic Double Sided Printing 333 M Hz Processor 2.5" Colour Screen