GS1-128 Specify the data of 2 to 255 digits. The start codes (CODE A, CODE B, CODE C) and the stop code are added automatically. ‘()’ is the delimiter for the application identifiers. (printed as the HRI character, but not encoded.) A symbol character FNC1, that is described after the start code, is automatically added. When ‘*’ is specified, a check digit is automatically calculated, and replaced with ‘*.’ 2 digits of consecutive numbers must be specified as the application identifier. If it is not specified correctly, an error occurs. When ‘(01)’ is specified as the application identifier, the 14th digit becomes a check digit, however, it is not proved when the check digit is specified.
When the 14th digit is ‘*,’ the check digit is auto- matically calculated, and replaced with ‘*.’ A special character is indicated by combining ‘{‘ and the next character. When the character right after ‘{‘ is not any of the following, an error occurs. 168 Control Character ASCII HRI Character Control Character (00h ~ 1Fh, 7Fh) Space is printed. FNC1 {1 Space is printed. FNC3 {3 Space is printed. ‘{’ {{ ‘{‘ is printed. ‘(’ {( ‘(‘ is printed. ‘)’ {) ‘)‘ is printed. ‘*’ {* ‘*‘ is printed. Left parenthesis for the application identifier ( ‘(‘ is printed. Right parenthesis for the application identifier ) ‘)‘ is printed. Check digit position * Check digit is printed.