When an error occurs, the scanner cancels operating and the Error and Ready lights indicate the error type.
Make sure your scanner’s AC adapter is securely connected to the scanner and a working electrical outlet.
Make sure the electrical outlet works. If necessary, test it by plugging in another electrical device and turn it on.
Make sure the scanning software is not running.
Make sure the Power Off Timer is set. For more details, see Power Off Timer Setting.
This behavior is expected. This product will enter sleep mode after a period of time. This setting can not be changed.
Make sure the scanner is turned on.
Turn off the scanner and computer, then check the interface cable connection between them to make sure it is secure.
Use the USB cable that came with your scanner or that is indicated in USB Interface.
Connect the scanner directly to the computer’s USB port or through one USB hub only. The scanner may not work properly when connected to the computer through more than one USB hub.
Make sure your computer supports USB.
If you are using any TWAIN-compliant program, such as Adobe Photoshop Elements, make sure that the correct scanner is selected as the Scanner or Source setting.
If you upgraded your computer’s operating system, you need to reinstall Epson Scan. Uninstall Epson Scan as described in Uninstalling Your Scanning Software, then reinstall it as described in the Start Here sheet.
For Windows only:
Make sure your scanner’s name appears under Imaging device without a (?) or an exclamation (!) mark in the Device Manager window. If the scanner’s name appears with one of these marks or as an Unknown device, uninstall Epson Scan as described in Uninstalling Your Scanning Software, then reinstall it as described in the Start Here sheet.
Make sure Epson Scan is installed correctly.
Windows Vista and XP: Click the Events tab in your scanner’s Properties window and make sure Take no action is not selected. Also, make sure the Start Button is selected in the Select an event list box, and Start this program is selected.
Mac OS X: Make sure you are logged on as the user who installed the scanner software. Other users must first start Epson Scanner Monitor in the Applications folder and then press the Start button to scan.