Flat bed scanner scan technology ccd scan format a4 supported document size 210 x 297 mm scan areas 6x4 5 6x6 6x7 6x8 6x9 6x12 6x22 scan resolution 6 400 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 43 pagesmin colour depth 48 bit opening angle 90 backwards light source readyscan led technology functions digital ice dust removal grain reduction scan to cloud number of keys 4 compatible operating systems wind