When reading barcodes, if the type of barcode to be read is predetermined, you can improve the reading accuracy by narrowing down the type of barcode to be read with the symbology filter settings.
Symbology Filter settings can be set on the following screen.
Symbology filter settings on the Reader screen
When scanning barcodes with the camera and screen scan, open the settings screen from the 
“Filter settings” button.
See 6.2.1 Symbology filter for the setting method.
Symbology filter settings on the Settings screen
Use the “Symbology Filter” menu in the “Symbol” section of the app settings screen to change and save settings.
See 6.2.1 Symbology filter for the setting method.