Printing:Ink Tank System; Maximum print/media size:A3+ (330 mm); Print resolution (in DPI):1440x5760; Printer interface:USB, network, Wi-Fi; Maximum print speed (A4 per min):28; Automatic double-sided printing (Duplex); Standard paper tray number:3; Maximum paper tray number:3; Scanner type:flat; Scanner resolution (in DPI):1200; Automatic document feeder