Flat bed scanner document scanner scan technology cis scan format a4 supported document size 216 x 297 mm scan resolution 2 400 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 4 pagesmin file formats jpeg pdf png tiff colour depth 48 bit opening angle 90 backwards area of use home use light source led tri colour rgb functions scan to cloud auto scan number of keys 4 compatible operating systems windows 7 wind