Flat bed scanner a3 scanner scan technology ccd scan format a3 supported document size 305 x 432 mm scan resolution 1 600 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 5 pagesmin colour depth 48 bit opening angle 90 backwards light source white cold cathode tube controls scan buttons compatible operating systems windows 8 windows 7 windows vista windows xp windows 2000 windows 81 windows 81 windows 8 windows 8 w