1. You may access following link to download the later driver.
ftp://cs0712:pen0712@ftp.penpower.com.tw/cs/Color_driver(731).zip

2. Please try to Decompress the attached zip file and use copy and past this folder to under C:\Windows\Temp\

3. Please go“ Start ”->”computer”-> right click ”properties”

4. Please Choose ”Device Manager”

5. Please find ”Other devices”-> at ”600 dpi USB Scanner” right click and choose ”update driver software”

6. Please Choose ”Browse my computer for driver software”

7. Please click ”Browse”button-> choose the path ”C:\Windows\Temp\Color_driver(731)”-> and then click ”next”

8. Color driver installation complete.

9. Please check first if the calibration is working.