Document scanner feeder scanner scan technologies cmos cis scan format a4 supported document size 216 x 355 mm scan resolution 600 dpi interfaces usb 30 ethernet 10100 wi fi max scan speed 40 pagesmin automatic document feed 50 sheets weight of paper 34 413 gm document feeder automatic light source led functions ultrasonic double feed detection dual stream scanning controls scan buttons compatible operating systems windows 8 windows 7 windows