After you set the "MSI with Two-digit Checksum" function, the scanner will take the last two
digits of the data as the checksum and won't be able to recognize MSI without checksum or
with only 1 digit checksum.
After you set the "Transmit MSI Checksum" function, the scanner will take the last one or two
digit(s) of the regular data as the checksum. The default setting is "Transmit MSI Checksum".
After you set the "Do not Transmit MSI Checksum" function, the scanner will no longer
transmit MSI checksum.