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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", and the scanner will
output all the barcode data.
If the scanner is set to "Verify without Output Checksum Character",
and 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 not passes, the
scanner will display read failure.
If the scanner is set to "Verify with Output Checksum Character",
and the scanner will check the data bases on the last character of
the barcode data. If the check pass, the scanner will output the data
with the checksum character; if the check not pass, the scanner will
display read failure.
Verify without Output Checksum Character
*Do Not Verify
Verify with Output Checksum Character
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