Document scanner flat bed scanner photo scanner scan technology cis scan format a4 supported document size 216 x 297 mm scan resolution 4 800 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 5 pagesmin file formats jpeg tiff pdf colour depth 48 bit opening angle 90 backwards areas of use home use office light source white led functions dust removal scan to cloud number of keys 4 compatible operating systems wind