Document scanner feeder scanner a3 scanner scan technology ccd scan format a3 supported document size 305 x 4064 mm scan resolution 600 dpi interface usb 20 max scan speed 80 pagesmin automatic document feed 250 sheets document feeder automatic colour depth 48 bit light source led controls scan buttons compatible operating systems windows 8 windows 7 windows vista windows xp linux windows 81 windows 81 windows 8 windows 8 windows 10 power co