Document scanner feeder scanner a3 scanner duplex 32 mb ram scan technology cis scan format a3 supported document size 297 x 420 mm scan resolution 600 dpi interface usb 20 max scan speed 80 pagesmin automatic document feed 300 sheets document feeder automatic colour depth 24 bit scan documents documents functions duplex scanning power supply ac adapter colour gray internal memory 32 mb width 474 mm depth 329 mm height 585 mm dimensio