The ultimate wireless all-in-one, the WorkForce Pro WP-4540 is twice the speed of competitive inkjets and gives you the World's Fastest auto two-sided print speeds, automatic two-sided copying/scanning/faxing, and professional quality output while getting up to 50% lower printing costs vs. color laser.  Boasting two-sided print speeds of 9.2 ISO ppm (black) and 7.1 ISO ppm (color), this ultra efficient all-in-one features a 580-sheet paper capacity and convenient 5.8" touch panel. Use the 30-page two-sided Auto Document Feeder to quickly copy, scan or fax one- or two-sided documents. Built-in wireless networking makes it easy to share your all-in-one printer with others. And a 20,000-page duty cycle gives you added peace of mind. Best of all, the WP-4540 offers low hassle, extra large, easy to install cartridges, with a high yield of 2400 pages black and 1,200 pages color.