You may need to uninstall and then reinstall your scanner software to solve certain problems or if you upgrade your operating system.
Windows 7 and Vista: Click the start button and select Control Panel.
Windows XP: Click Start and select Control Panel.
Windows 7 and Vista: Click Uninstall a program from the Programs category.
Windows XP: Double-click the Add or Remove Programs icon.
Windows 7: Click Uninstall/Change.
Windows Vista: Click Uninstall/Change, and then click Continue in the User Account Control window.
Windows XP: Click Change/Remove.
In some cases, a message may appear to prompt you to restart your computer. If so, make sure I want to restart my computer now is selected and click Finish.
Double-click the Applications folder in your Mac OS X hard drive, select the application you want to uninstall, and then drag it to the Trash icon.
To uninstall EPSON Scan, launch the installer from the software CD that came with your scanner. In the pull-down menu, choose Uninstall to remove the driver.