If you have tried all of the solutions and have not solved the problem, initialize the application settings by using Epson Scan 2 Utility.
Epson Scan 2 Utility is one of the applications supplied with the scanner software.
Start Epson Scan 2 Utility.
Select the Other tab.
Click Reset.
If initialization does not solve the problem, uninstall and re-install the scanner driver (Epson Scan 2).