scanner type : sheetfed, one pass duplex a4 colour scanner optical resolution : 600 x 600 dpi output resolution : 75, 100, 150, 200, 240, 300, 400 & 600dpi scanning speed (a4, 200dpi): mono/col : simplex 40ppm, duplex 80ipm scanning method : sheet through, duplex scanning paper supply: face down load , paper out: face down eject photoelectric device : 3 lines colour ccd light source : white led max eff scan area : document size: plastic card (in portrait scanning only), a4, a5, a6, b5, business card, letter, legal and custom sizes (can set for up to 5 different paper types), a3 and b4 size supported with carrier sheet max size: 216 x 914.4 mm , min size: 53.5 x 73.7 mm input tray : 75 sheets (based on 75g/m2 paper) paper weight auto: 50-130g/m2 , manual: 45-200g/m2 pixel depth : in: 16 bits / pixel, out: 1, 8 bits / pixel colour : 24 bits external interface : usb2.0 (type-b standard connector) x 1 supp platforms : usb2.0 high-speed : ms win 2000 pro/ xp (home ed/ pro/ pro x64)/ windows vista ; mac os x 10.3.9 or later net dimensions : 303mm w x 202mm d x 213mm h net weight : approx 5kg