c: Control flag

Bit 0 = Check digit

0:The printer does not add A check digit.

1:The printer adds A check digit.

Bit 1 = Human readable character (HRC)

0:The printer adds the HRC.

1:The printer does not add the HRC.

Bit 2 = Position of flag character (for EAN-13 and UPC-A only)

0:Center

1:Under

Bits 3−7 = Not used

Barcode data

Barcode data corresponds to the barcode symbology. The data number of each barcode type is constant. The barcode is printed only if the following valid characters are set.

Barcode type

Number of valid

Number of valid

 

characters 1 (HEX)

characters 2 (HEX)

 

 

 

EAN-13

0D

0C

EAN-8

8

7

Interleaved 2 of 5

2 to FF

2 to FF

UPC-A

0C

0B

UPC-E

0C or 8

0B or 7

Code 39

1 to FF

1 to FF

Code 128

2 to FF

2 to FF

POSTNET

6 or 0A or 0C

5 or 9 or 0B

 

 

 

Number of valid characters 1: Control flag c b0=0

Number of valid characters 2: Control flag c b0=1

B-4Printer Commands and Character Tables