Code 39 start / stop characters, Code 39 check character, Code 39 -4 – HandHeld Entertainment Document Reader 4800dr User Manual
Page 52: Code 39, Code 39 start/stop characters

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4800dr Barcode Guide
Code 39
< Default All Code 39 Settings >
Code 39
Code 39 Start/Stop Characters
Start/Stop characters identify the leading and trailing ends of the barcode. You may either transmit, or not transmit Start/Stop
characters. Default = Don’t Transmit.
Code 39 Check Character
No Check Character indicates that the document reader reads and transmits barcode data with or without a check character.
When Check Character is set to Validate, but Don’t Transmit, the unit only reads Code 39 barcodes printed with a check
character, but will not transmit the check character with the scanned data.
When Check Character is set to Validate and Transmit, the document reader only reads Code 39 barcodes printed with a check
character, and will transmit this character at the end of the scanned data. Default = No Check Character.
* On
Off
Transmit
* Don’t Transmit
Validate, but Don’t Transmit
* No Check Character
Validate and Transmit