Flat bed scanner document scanner a3 scanner scan technology cis scan format a3 supported document size 297 x 432 mm scan resolution 600 dpi interface usb 20 max scan speed 24 pagesmin automatic document feed 200 sheets document feeder automatic colour depth 24 bit light source led controls scan buttons compatible operating systems windows 8 windows 7 windows vista windows xp windows 81 windows 81 windows 8 windows 8 windows 10 colour multico