59
CHAPTER 7: Advanced Features
7.5 Printing Bar Codes
7.5.1 T
HE
C
OMMAND
L
INE
Using the HPIIISi Twinax Card’s “bar code” feature, the bar codes in Table
7-1 can be easily printed.
Table 7-1. Printable Bar Codes
Type
Bar Code
1
Code 3 of 9
2
Code 128
3
Interleaved 2 of 5
4
POSTNET
5
UPC A
6
EAN 8
7
EAN 13
To print any of these bar codes, use the following format:
¬B<type>,<height>,<width>,
<hr>,<chkd>,<ast>,<data>¬B
The bar-code command string must contain all of these parameters, even if
the parameter is irrelevant for the type of bar code being printed. For
example, POSTNET comes in only one size, so any height or width
specifications are ignored. But the parameters for height and width must
be included anyway.
The following paragraphs describe each of the components of the bar-code
command string:
¬B
:
Identifies the string as a bar-code command string. ¬B must be placed at
the beginning and at the end of the string.
<type>
:
Specifies the bar-code type according to Table 7-1.
<height>
:
Specifies the height of the bar code. Height is expressed in whole-number
multiples of 2.5 mm (approximately
1
⁄
10
"), from 1 (2.5 mm) to 9 (22.5 mm).
Height values are ignored if the POSTNET bar code is being printed, since
POSTNET uses one standard height. However, a valid value (1 to 9) must
be entered for the height parameter to ensure that the bar-code command
string is complete.
