Honeywell Voyager 1200g User Manual page 133

For example, you may have set your device to the data format you saved as
Data Format 3. You can switch to Data Format 1 for a single button press
by scanning the following Single Scan-Data Format 1 bar code. The next
bar code that is scanned uses Data Format 1, then reverts back to Data
Format 3.
Single Scan-Primary
Data Format
Single Scan-Data Format 1
Single Scan-Data Format 2
Single Scan-Data Format 3
6 - 11