type : desktop sheetfed scanner contact image sensor (cmos) speed: 25ppm (simplex), 50ipm (duplex) b&w on a4/ltr, portrate 13ppm (simplex), 18ipm (duplex) 24 bit col res :(dpi) 600x600, 400x400, 300x300, 240x240, 200x200, 150x150, 100x100 greyscale : 256 level i/face : hi-speed usb 2.0 paper handling : automatic or manual feeding i/p : 5mm stack or 50 sheets of 80gsm dimensions : (wxdxh) 302 x 171 x 81 mm ; weight : 1.9 kg media size : width: 53 - 216 mm ; length:70-355.5mm sw : isis/twain driver, captureperfect & adobe acrobat software * auto-shading for exceptional image quality * vivid colour reproduction with 3d colour correction * portable, space-saving design * straight-path paper feeding for smooth card scanning * scan documents up to a3 size with folio mode