Each scanner button opens a pre-selected program when you press it. The default programs they open and the default actions they perform are described in the table below.
You can assign any of the scanner buttons to open a program in the Epson Event Manager to make scanning your projects even quicker.
Windows 8: Navigate to the Apps screen > Event Manager.
Windows 7/Vista/XP: Select the start button or Start > Programs or All Programs > Epson Software > Event Manager.
Mac OS X: Select Applications > Epson Software, and double-click the Event Manager icon.
You see the Button Settings tab in Epson Event Manager.
Now whenever you press the button you assigned, the action you selected opens.