Document scanner scan technology ccd scan format a3 supported document size 297 x 420 mm scan resolution 600 dpi interface usb 20 position of connectivity ports 1x usb rear max scan speed 100 pagesmin automatic document feed 500 sheets weight of paper 20 209 gm document feeder automatic colour depth 24 bit area of use office light source white led functions duplex scanning slant correction ultrasonic double feed detection auto page size and col