Checksum

Bar Code Checksum— The application uses checksum handling for bar code types where checksums are optional (Codabar, Code 39, and Interleaved 2 of 5). "Bar Code Checksum" does not change the checksum handling rules for bar code types where checksums are mandatory or checksums are never used.

For bar code types where the checksum is mandatory, checksum handling is always performed. Likewise, for bar code types where there is never a checksum, checksum handling is never performed.

Checksum handling— Returns the data if the checksum (the last character) is valid. The checksum character is not part of the returned bar code value.