3.5 CODE 25-STANDARD 25
3.6 CODE 39
3.6.1 Enable/Disable Code 39
3.6.2 START/STOP Output
3.6.3 Checksum Verification
It is not enforced to include the checksum character in the Code 39 data. If checksum
character is included, it should be the last character of the barcode data. Checksum
character is a calculate value bases on all of the data, and is used to check the data is
correct or not.
Thus, if the scanner is set to "Do Not Verify", the scanner will output all the barcode data.
If the scanner is set to "Verify without Output Checksum Character", the scanner will
check the data bases on the last character of the barcode data. If the check passes, the
scanner will output the data without the checksum character; if the check does not passes,
the scanner will display read failure.
If the scanner is set to "Verify with Output Checksum Character", the scanner will check
the data bases on the last character of the barcode data. If the check passes, the scanner
will output the data with the checksum character; if the check does not pass, the scanner
will display read failure.