Bar Codes; Qr Code Overview; Select Model For Qr Code; Set Size For Qr Code Module - CognitiveTPG A798 Programming Manual

Revision D 10/13

Bar codes

These commands format and print bar codes and are described in order of their hexadecimal codes.
These commands describe operation for 80mm paper. If the printer supports 82.5mm paper, the dot spacing is the same but
there are 640 printable dots rather than the 576 printable dots on 80mm paper.

QR code Overview

QR code is a 2-dimensional matrix symbology consisting of an array of nomimally square modules arranged in an overall
square pattern using the QR symbology. A unique pattern at three of the symbol's four corners assists in determining the
bar code size, position, and rotation.
A series of five commands are required to create and print QR codes.

1. Select model for QR code

2. Set the size for QR module
3. Select error correction level
4. Store symbol data
5. Print symbol data
The details of each command are described below.
Note: The settings for model, size of module, and error correction level are effective until the printer is reset, or the power
is turned off.
Select model for QR code
ASCII GS ( k EOT NUL 1 A n1 n2
Hexadecimal
1D 28 6B 04 00 31 41 n1 n2
Decimal 29 40 107 4 0 49 65 n1 n2
Value of n1:
31h = Selects model 1
32h = Selects model 2 (default)
Value of n2: 00h (default)
This command specifies the original version (m = 1), or the enhanced form of the symbology (m = 2). Model 2 is the
recommended model.

Set size for QR code module

ASCII
GS ( k ETX NUL 1 C n
Hexadecimal 1D 28 6B 03 00 31 43 n
Decimal
29 40 107 3 49 67 n
Value of n: 01h ≤ n ≤ 10h
Default: 03h
This command sets the number of encoded data bytes, including carriage returns and line feeds.
Chapter 4: Programming Commands
1D 28 6B 04 00 31 41 n1 n2
1D 28 6B 03 00 31 43 n
1D 28 6B 03 00 31 45 n
1D 28 6B qL qH 31 50 30 f1...fk
1D 28 6B 03 00 31 51 30
A798-PG00001D
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