Document scanner feeder scanner scan technology cis scan format a4 supported document size 216 x 914 mm scan resolution 600 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 30 pagesmin automatic document feed 50 sheets document feeder automatic colour depth 48 bit light source led functions duplex scanning compatible operating systems windows 7 windows vista windows xp mac os x windows 10 windows 8 windows 81 power