CognitiveTPG A776 ColorPOS, Programming Manual

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Chapter 5: Programming commands 97
A776-PG00001 D 07/13 A776 (B780) Programming Guide
Print bar code
First Variation Second Variation
ASCII
GS k m d1…dk NUL GS k m n d1…dn
Hexadecimal 1D 6B m d1…dk 00 1D 6B m n d1…dn
Decimal
29 107 m d1 dk 0 29 107 m n d1…dn
(0 = End of command)
Selects the bar code type and prints a bar code for the ASCII characters entered. If the width of the bar code exceeds
one line, the bar code is not printed.
There are two variations to this command. The first variation uses a NUL character to terminate the string; the second
uses a length byte at the beginning of the string.
The check digit is calculated for UPC and JAN (EAN) codes if it is not sent from the host computer.
Six-character zero-suppressed UPC-E tags are generated from full 11 or 12 characters sent from the host computer
according to standard UPC-E rules. Start/stop characters are added for code 39 if they are not included.
Rotated barcodes set with small modules (select bar code width command 1D 77 n , with n = 1 or 2) and PDF 417
barcodes in any orientation are printed at low speed, for better readability.
Exceptions
The command is only valid at the beginning of a line.
Illegal data cancels the command.
Values:
First variation: String terminated with NUL character. Length k is not specified in command string; it depends on the
bar code being printed.
m Bar code d1...dk length
0 UPC-A 48-57 (decimal) Fixed length: 11,12
30-39 (ASCII numerals)
1 UPC-E 48–57 Fixed length: 11, 12
30-39
2 JAN13 (EAN) 48–57 Fixed length: 12, 13
30-39
3 JAN8 (EAN) 48–57 Fixed length: 7, 8
30-39
4 Code 39 48–57, 65–90 (decimal), 32, 36, 37, Variable length
43, 45, 46, 47 (decimal)
d1 = dk = 42 (start/stop code is supplied by printer if necessary)
30-39 (ASCII numerals), 41-5A (ASCII alphabet)
20, 24, 25, 2B, 2D, 2E, 2F (ASCII special characters)
d1=dk=2A (start/stop code is supplied by printer if necessary)
5 Interleaved 2 of 5 48–57 Variable length (even number)
30-39
6 Codabar 65–68, start code 48–57, 36, 43, 45, 46, 47, 58 Variable length
41-44, start code 30-39, 24, 2B, 2D, 2E, 2F, 3A
10 PDF 417 1–255 Variable length, maximum 1000 characters
01-FF
Continued . . .