When my scan is successful, the output is missing numbers? (characters)

A: Please turn on the system bit and the transfer bit (The text uses the opening of UPC-A as an example).

1. Go to Keyboardemulator App.
2. Touch Settings> UPC-A> open Send check digit and SysChar+Data.
3. Once completed, you can test in the App Content test box.

Figure 3- 13 Scan all characters