ida 812-1x MIO Operator’s Guide
Function Selection via the Line
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7. Function Selection via the Line
NOTE:
This section is a brief description of how to set up the
interface from the line with FSL Functions. The
section is primarily intended for users who are already
familiar with i-data products.
The guidelines in this section are very basic. For
further details on the supported FSL functions, please
see "ida 812-1x PCL Platform, Programmer's Guide",
Document No. D62026. In the Programmer's Guide you
will find an extensive description of the FSL Functions
with notes, comments and examples.
FSL Functions are special commands in the data stream that set up
the interface card and consequently the printer to function in a
specific way.
The ida 812-1x MIO interface card is pre-programmed
and ready to operate. The factory default setup will
meet the demands of most host systems and users,
and special programming is therefore normally not
required.
However, special circumstances may require changes in the
programming of the interface. This is done in accordance with the
guidelines in this section.
For a full list of supported FSL Functions, please see Appendix A.

7.1. The Escape Character

When you send FSL Functions via the data stream, these functions
must be "separated" from the data stream, so that they will not be
printed. For this you need to define an Escape (ESC) Character.
The ESC Character tells the interface that the characters following
the ESC Character in the data stream are to be regarded as a
command. The end of the command is signalled with the ESC
Character again.