WIRELESS COLOR LASER DUPLEX Printer, Copier, Fax, and Scanner 9.3cm Touch Screen LCD , full automatic duplex system. * 512 MB memory. * USB2, LAN, WLAN and WiFi. * Printing: 2400x600 dpi, 31 ppm single-sided, 14 ppm duplex, 250-sheet paper tray, 50-sheet ADF. * Copy: 1200x600 dpi copy resolution, 1200 x 2400 dpi scan resolution. * Fax: 33600 bps. * Duplex scanning speed: 56 fps. * Scanning: Email, File, FTP, USB. * Brother iPrint & Scan, Brother Android print service, Google Cloud Print 2.0, Mopria, AirPrint. * Supplies: DR421CL, TN421 / 423/426 BK, C, M, Y, BU330CL, WT320CL