Appendix F Barcode Quick Reference

1. Introduction

The barcode print facility is available in all three emulations.

2. Programming

There are three escape sequences to print barcodes

-The first sequence is to define the Barcode Header. The type of barcode as well as all parameters are selected by a header. The header does not affect any parameters outside the barcode application and remains valid until another header is transmitted or the printer is turned off. This can be done at any time but before barcode printing.

The header has the following format:

 

ESC [ ; P2 ; P3 ; P4 ; P5 ; P6 ; P7 8 z

Note: 8 = Space

-In step two, the ESC-sequence "Set Mode Barcode (SMBC)" starts the barcode printing.

ESC [ ? 0 h

-Finally, the ESC-sequence "Reset Mode Barcode (RMBC)" will stop printing.

ESC [ ? 0 l

Note: Between SMBC and RMBC are only printable characters tolerated (no CR or LF).

2.1Barcode Header

 

 

 

 

 

 

Format

Function/Parameter

Hex Code

 

 

 

 

 

BH

Barcode Header

1B

5B

3B P2 3B P3 3B P4

 

P2 = Barcode type;

3B P5 3B P6 3B P7 20 7A

 

P3 = Height of barcode;

 

 

 

 

P4

= Width of thin bars;

 

 

 

 

P5

= Width of thin gaps;

 

 

 

 

P6

= Ratio width to height;

 

 

 

 

P7

= Uni/Bidirectional printing

 

 

 

SMBC

Start of Barcode

1B

5B

3F 30 68

RMBC

Stop Barcode

1B

5B

3F 30 6C

 

 

 

 

 

 

F-1

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