Document scanner feeder scanner flat bed scanner scan format a4 supported document size 297 x 2997 mm scan resolution 600 dpi interface usb 20 max scan speed 30 pagesmin automatic document feed 75 sheets document feeder automatic colour depth 24 bit functions duplex scanning compatible operating systems windows 7 windows vista windows xp windows 81 windows 8 windows 10 power consumption in use 30 watt colours gray blue software included nuance