Fujitsu fi-7300NX Operator's Manual page 72

From the [Select an event] drop-down list, select a button.
The following buttons can be selected:
● [Scan Button]/[Send to 01] to [Send to 50]
Select a button to use for scanning.
The buttons displayed in the button list are in the same order as the buttons displayed in the touch screen.
For details about the buttons displayed in the touch screen, refer to
6
Select an image scanning application to be launched when the button is pressed.
Operations on the Scanner (page
72
How to Perform a Basic Scan
74).