Special Printer Variables    ICR (3172)

Use PKILL^%ZISP to kill printer-specific Device
Handler variables. All output variables defined by the PSET^%ZISP entry point
are killed.

Use PSET^%ZISP to define a set of variables that
toggle special printer modes. The corresponding fields in the TERMINAL TYPE
file entry for the terminal type in question must be correctly set up,
however; that is where PSET^%ZISP retrieves its output values.  To toggle a
printer mode with one of PSET^%ZISP's output variables, write the variable to
the printer using indirection, as follows: D PSET^%ZISP W @IOBARON