Document scanner feeder scanner scan technology ccd scan format a4 supported document size 216 x 2540 mm scan resolution 600 dpi interface usb 20 max scan speed 80 pagesmin automatic document feed 100 sheets document feeder automatic colour depth 48 bit functions duplex scanning controls scan buttons compatible operating systems windows 8 windows 7 windows vista windows xp windows 2000 windows 81 windows 81 windows 8 windows 8 windows 10 colo