Document scanner portable scanner feeder scanner scan technology cis scan format a4 supported document size 216 x 297 mm scan resolution 600 dpi interface usb 20 max scan speed 8 pagesmin automatic document feed 1 sheets document feeder automatic light source led tri colour rgb functions scan to cloud scan to smartphone compatible operating systems windows 8 windows 7 windows vista windows xp mac os x windows 81 windows 81 windows 8 windows 8 w