Image Sensor A4 Color Contact ImageSensor                      
Number of sensor 5136dots(1st~5104 dotsavailable)                      
Resolution              Low resolution:300*300dpi(default)                      
               High resolution:600*600dpi                      
Maximum scanning speed for A4 sizedocument             ColorHigh resolution: 13Seconds                      
  Mono High resolution: 6.0Seconds                      
  Color Low resolution: 3.0Seconds                      
  Mono Low resolution: 2.0Seconds                      
Capacity (based on 1GB microSD card.Scan A4 size file,the quantityof scans varies depending on the contentcomplexity             600dpicolor: 220Photos(Min.)                      
  600dpi mono: 290Photos(Min.)         
  300dpi color: 780Photps(Min.)                      
  300dpi mono: 1280Photos(Min.)                      
Scan width8.27"                                   
Scanlength 300DPI:50"(Max),600DPI:25"(Max)                      
Fileformat JPEG                      
LCD  Scanning statusdisplay                      
Auto Power Off 3Minutes                      
USB port  USB 2.0 highspeed                      
External memory MicroSDCard                      
Standard Battery 2*AA alkalinebatteries                      
Computer system minimumrequirement                                   
Operating System Windows 7/Vista/XP and Mac OS 10.4 orabove(direct plug-in,driver installation not required)