CognitiveTPG A760 - Manual (Page 105)

A760 User Guide: Programming Supplement
Chapter 4: Programming commands
105 Revision F January 2010
Sample symbol description:
Each PDF 417 symbol consists of 3 to 90 stacked rows surrounded on all four sides by a quiet
zone. Each row contains:
�����
�����
�����
�����
�����
�����
�
�
�
�
�
�������������
������������������
����������
��������������
����������
�������������������
����������
������������
1 Leading quiet zone
2 Start pattern
3 Left row indicator characters (code words)
4 One to thirty data characters (code words)
5 Right row indicator character (code words)
6 Stop pattern
7 Trailing quiet zone
The number of characters in a row and number of rows can
be adjusted to vary the symbol’s overall aspect ratio to best
fit an available space.
Each row has a left and right row indicator with a data
region between. The left-most character in the top row of
the data region is the total number of characters in the data
region, excluding error correction characters. Characters
within the data region are designed to be read from left to
right, starting on the top row, immediately after the length-
defining character. The maximum characters in the data
region are 928.
Related Information:
The “Set bar code width” command (1D 77 n) affects the
x dimension and row height for PDF 417.
n value x dimension row height
2 2 7
3 3 10
4 4 13
5 5 17
6 6 20
Select bar code width
ASCII GS w n
Hexadecimal 1D 77 n
Decimal
29 119 n
Value of n: 2, 3, 4, 5, 6
Default: 3 for receipt; 2 for slip
Sets the bar code width to n dots.
Formulas
n/8 mm (n/203 inch) for receipt.
n/5.7 mm (n/144 inch) for slip.