Document scanner feeder scanner scan technology cis scan format a4 supported document size 215 x 355 mm scan resolution 600 dpi interface usb 20 max scan speed 15 pagesmin automatic document feed 20 sheets document feeder automatic colour depth 24 bit functions duplex scanning scan to cloud compatible operating systems windows 8 windows 7 windows vista windows xp mac os x windows 81 windows 81 windows 8 windows 8 windows 10 colour black max