Document scanner feeder scanner flat bed scanner scan format a4 supported document size 216 x 3048 mm scan resolution 600 dpi interface usb 20 max scan speed 25 pagesmin automatic document feed 50 sheets weight of paper 52 127 gm colour depth 24 bit scan documents documents area of use office light source led tri colour rgb functions duplex scanning compatible operating systems windows 10 windows 81 windows 8 windows 7 windows vista power