Dell Rugged 7220 User Manual page 20

Steps
1. Download and install any external scanner such as 123Scan Utility.
2. Open the scanner and wait for the drivers to update.
3. After the drivers are updated, go to the Data view tab, and select the
required scanner.
The detailed information about the scanner is displayed.
4. To check if your scanner is working, click the Flash/Beep scanner.
You can hear a beep sound from the scanner.
5. Go to Rugged Control Center, and check for the barcode scanner in
the Settings section.
RCC User Guide│ 20