Brother 36-Roll Paper Prints up to 32ppm monochrome output Automatic duplex printing for two-sided documents Built-in Wireless and Ethernet network interfaces - Flexible networking. Built-in wireless 802.11b/g and wired Ethernet network capabilities allow you to share this printer with multiple users on your network. Eliminate extra cables and conveniently place your printer with wireless networking (Broadband access and 802.11g router is required). Up to 1200 x 1200 dpi resolution Straight-through paper path via multi-purpose tray for printing envelopes and thicker media