IntelliTech Intellibar M412, Справочное руководство

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Section 10
HP PCL Macro Commands and
Programming Hints
Your printer uses several commands during a typical print operation. During some opera-
tions the same print routine may be repeated several times. PCL provides a macro feature
so you can reduce the number of commands sent to the printer. A macro is a collection of
escape sequences, control codes, and data downloaded to the printer that can be initiated
through a single command.
*
CREATING A MACRO
Each macro needs a unique identification (ID) number that must be assigned before you de-
fine the macro. If you assign an existing macro's number to a new macro, the existing mac-
ro is overwritten in the user memory as you define the new macro. All subsequent macro
operations are performed by using the macro ID number.
You create a macro in three steps.

first, send an escape sequence to the printer that indicates the start of a macro def-
inition.

second, send the escape codes, control codes, and data that you want in the mac-
ro. These items must be sent in the intended order of execution.

third, send an escape code to the printer that indicates the end of the macro defi-
nition.
CONTROLLING A MACRO
Macros are stored in user memory. Depending on the amount of memory available in the
IntelliBar M Series, up to 32 macros can be stored simultaneously.
You can use three different ways to invoke a macro:

execute

call

overlay.