CognitiveTPG A798 Manual de Instruções descarregar pdf (Página 84)

Chapter 4: Programming Commands84

Revision C 12/09

A798-PG00001C

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 rst variation uses a NUL character to terminate the string; the second uses

a length byte at the beginning of the string to compensate for the code 128 bar code, which can accept a NUL character as

part of the data. With the second variation, the length of byte is specied at the beginning of the string.

Bar codes can be aligned left, center, or right using the align positions command (1B 61).

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 specied in command string; it depends on the bar

code being printed.

m Bar code d1...dk length

0 UPC-A 48–57 (ASCII numerals) Fixed length: 11, 12

1 UPC-E 48–57 Fixed length: 11, 12

2 JAN13 (EAN) 48–57 Fixed length: 12, 13

3 JAN8 (EAN) 48–57 Fixed length: 7, 8

4 Code 39 48- 57, 65- 90 (ASCII alphabet), 32, 36, 37, Variable length

43, 45, 46, 47 (ASCII special characters)

d1 = dk = 42 (start/stop code is supplied

by printer if necessary)

5 Interleaved 2 of 5 48–57 Variable length (even number)

6 Codabar 65–68, start code 48–57, 36, 43, 45, 46, 47, 58 Variable length

10 PDF 417 32–255 Variable length

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 120 121

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CognitiveTPG A798 Manual de Instruções Página 84