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Chapter 4 Postnet Barcodes
Parameters In POSTNET
When used with POSTNET barcodes, some parameters function differently
than when used with other barcodes. These parameters are as follows:

^IBARC,POSTNET,B,98032^

The Below (B) parameter adds human-readable characters below the
barcode, but unlike other barcodes, does not reduce the he ight of POSTNET
codes.

^IBARC,POSTNET,E,98032^-

Normally, using the Embedded (E) parameter reduces the height of the
barcode. However, because of POSTNET barcodes’ height requirements,
characters that would normally be embedded are instead pri nted below the
barcode, as if the B parameter were used.

^IBARC,POSTNET,N,98032-1122^-

Hyphens are ignored in POSTNET barcodes. Illegal characters (not digits or
hyphens) are printed as zeros.

^IBARC,POSTNET,R1:4,N,98032^-

The required ratio for POSTNET barcodes is 1:4 (bar:gap), but m ay be
modified using the Ratio (R) parameter. Ratios other than 1:4, however, do
not meet the United States Postal Service specifications for POSTNET
barcodes.
AIAG Barcodes
The AIAG barcode style is used by the automotive industr u. It is actually a
Code 39 style with no check digit and is encoded accord ing to the AIAG
specification.
Example: The Graphics Pass,
^M0505000^IFONTS,S,10^IBARC,AIAG,E,AIAG BAR CODE
^G^- prints: