User`s guide

STANDARD PRINTER COMMANDS
Copyright © 2006, Cognitive. 31
bytes
Number of encoded data bytes, including
carriage returns and line feeds. Macro
PDF functions are invoked if this value
exceeds 3072 (see comments).
T
Optional; produces a truncated bar code
(the right row indicator and stop bar are
replaced by a single width bar).
M
Optional; enables Macro PDF functions
(see comments).
data
Data to be encoded.
NOTE: The number of bytes specified must
exactly equal the number of bytes in the
data that follows. The printer may not
execute other commands following the
BARCODE PDF417 command if the byte
value is incorrect.
Comments PDF417 bar codes never have human-readable
subtext.
All dimensions specified in the command are in dots.
The starting position of the bar code block is
normally its upper left corner, but the JUSTIFY
command can right justify or center justify PDF417
codes. Place the proper JUSTIFY command before
the BARCODE PDF417 or BARCODER PDF417
command that plots the bar code you wish to justify.
Macro PDF functions provide command
enhancements useful for handling large amounts of
data. Macro PDF can create a distributed
representation of files that are too large for a single
PDF417 bar code block. An M before the data will
invoke macro PDF, or the printer will invoke it
automatically if the supplied data will not fit in a
single PDF417 symbol. With macro PDF in effect,
you may add the following optional parameters
before the data: