The Lexmark MX510 Multifunction Printer delivers consistent printing & is faster & more reliable than ever. With 1200 x 1200dpi resolution this machine will provide crisp images & graphics. Faster processing is enabled using the machines's 512MB of memory (which is upgradable to 2.5GB) & a Dual Core 800 M Hz processor. Print, Copy, Scan & Fax with a print speed of up to 42 pages a minute in mono & in colour & achieve a first page out time of 6.5 seconds. This Lexmark MX510 Printer is easy to use & control your jobs with it's 4.3 inch colour touchscreen display. Print direct from a USB (Universal Serial Bus) stick with a port on the front of the machine. Double Sided printing & Network connectivity are standard as well as noise, paper & energy saving functions which include Eco mode, hibernate & quiet modes. Print direct from your mobile device using Lexmark mobile printing app.