
Some ASCII characters may be missing as this depends on the type of keyboard: these are
generally particular characters relative to the various national symbologies. In this case:
• The first 4 characters (Shift, Alt, Ctrl, and Backspace) can only be substituted with
keys not used, or substituted with each other.
• characters can be substituted with other single symbols (e.g. "SPACE") even if not
included in the barcode set used.
• characters can be substituted with others corresponding to your keyboard.
The device signals the end of the procedure with 2 beeps indicating the keys have been
registered.
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