Compact Monochrome Laser Printer with Wireless Networking and Duplex. Prints up to 27ppm; Automatic duplex for two-sided printing; Wireless 802.11b/g, Ethernet and Hi-Speed USB 2.0 interfaces; Up to 2400 x 600 dpi print resolution; Adjustable, 250-sheet capacity paper tray for letter or legal size paper; Straight-through paper path via manual feed slot for thicker media; Toner Save mode for less critical business documents. Supplies TN420, TN450, DR420 and BP60MPLTR