Intermec Trakker T2090, User Manual

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Configuration Command Reference
6-11
6
Code 39
Purpose: Enables or disables decoding of Code 39 symbology. Code 39 is discrete,
variable length, and self-checking. The character set is uppercase A to Z, 0 to 9,
dollar sign ($), period (.), slash (/), percent (%), space ( ), plus (+), and
minus (-). The maximum character length for a label is 23 characters.
The computer decodes three types of ASCII:
• Code 39 non-full ASCII
• Code 39 full ASCII
• Code 39 mixed-full ASCII
Code 39 non-full ASCII Non-full ASCII uses a one-character encoding scheme.
For example, you encode the data “SAMPLE” as follows:
*SAMPLE*
*SAMPLE*
This label decodes as SAMPLE.
Code 39 full ASCII
Full ASCII uses a two-character encoding scheme to extend
the character set to 128 characters. You use the dollar sign ($), slash (/), percent
(%), or plus (+) followed by an uppercase letter to represent one of the
characters in the extended set. You must encode lowercase letters as a plus sign
(+) followed by their uppercase equivalents. For a list of ASCII characters and
their Code 39 representations, see the “Full ASCII Charts” in Appendix C.
Use Code 39 full ASCII to enter ASCII control characters or lowercase
characters as data. You should also enable Code 39 full ASCII to use ASCII
command characters.
For example, you encode the data “sample” in Code 39 full ASCII as follows:
*+S+A+M+P+L+E*
*+S+A+M+P+L+E*
In Code 39 non-full ASCII, this label decodes as +S+A+M+P+L+E. In Code 39
full ASCII, this label decodes as sample.
Code 39 mixed-full ASCII Use mixed-full ASCII when printers encode the same
label two different ways. For example, if you have a bar code with the data
$%a, some printers encode the data as follows:
*/D/E+A*
*/D/E+A*