The checksum is remainder on division by 103.įor example, if you are encoding the string ABCD1234 in symbol set A then the checksum values will be:.Add on the value of the start character.Multiply the value of each character by it’s position in the barcode (indexed from 1). The CODE A, B and C symbols latch all following characters to the specified symbol set where as SHIFT A and SHIFT B just change the interpretation of the next character. Start character (start A, start B or start C) (3 bars)Ĭhecksum character – calculated from the data characters (3 bars)
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