Photo scanner flat bed scanner a3 scanner scan technology ccd scan format a3 supported document size 310 x 437 mm scan resolution 2 400 dpi interface usb 20 position of connectivity ports 1x usb rear file formats jpeg tiff pdf colour depth 48 bit opening angle 90 backwards light source cold cathode number of keys 2 compatible operating systems windows 8 windows 7 windows vista windows xp mac os x windows 81 windows 81 windows 8 windows 8 windo