Document scanner feeder scanner a3 scanner scan technology ccd scan format a3 scan resolution 600 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 50 pagesmin automatic document feed 250 sheets document feeder automatic colour depth 48 bit light source led controls touch screen compatible operating systems windows 8 windows 7 windows vista windows xp windows 81 windows 81 windows 8 windows 8 windows 10 power consu