Image Sensor A4 ColorContact Image Sensor 
Number ofsensor 5136dots(1st~5104 dots available) 
Resolution              Low resolution:300*300 dpi(default)  
 High resolution:600*600dpi   
Maximum scanning speed for A4size document
Color High resolution: 13Seconds    
  Mono High resolution: 6.0Seconds
  Color Low resolution: 3.0Seconds
  Mono Low resolution: 2.0Seconds   
Capacity (based on 1GB microSDcard.Scan A4 size file,the quantity of scans varies depending onthe content complexity   
600dpi color: 220Photos(Min.) 
  600dpi mono: 290Photos(Min.) 
  300dpi color: 780Photps(Min.) 
  300dpi mono: 1280Photos(Min.) Scan width 8.27"
Scanlength 300DPI:50"(Max),600DPI:25"(Max) 
File format JPEG
LCD  Scanning statusdisplay
Auto Power Off 3Minutes
USB port  USB 2.0 highspeed
External memory MicroSDCard
Standard Battery 2*AAalkaline batteries     
Computer system minimumrequirement  
Operating System Windows7/Vista/XP and Mac OS 10.4 or above(direct plug-in,driverinstallation not required)