Lexmark T430 Technical Reference page 240

firstside
indicates whether the current imaging area is on the front side of the page.
front side is currently being imaged
back side is currently being imaged
Error: stackoverflow
fontnonzerowinding
sets the winding rule for Type 1 fonts. No query operation is performed since the
winding rule is reset to
value can be:
non-zero winding used by the interpreter
even or odd winding rule used by interpreter
Error: stackoverflow
hardwareiomode
queries the user default setting of the
returns the value of the Parallel Protocol, either Standard or Fastbytes. An
value is returned on the stack:
Parallel Fastbytes Off (Standard)
Parallel Fastbytes On (Fastbytes)
Error: stackoverflow
idlefonts
supports compatibility with the IBM LaserPrinters 4019, 4029, and 4039. It is
parsed and returns a mark on the stack.
Error: stackoverflow
4-26
at the beginning of each print job. The boolean
Parallel Protocol
PostScript
menu item. This operator