HP PCL/PJL reference - Printer Job Language Technical Reference Manual

EN Environment Commands 6-37
• IPARM : port — This optional parameter is used to set
port-specific variables. The HP LaserJet 4PJ is the only printer
which supports port-specific variables.
• IPARM : port — This option must be used when setting
port-specific variables. Valid values for port for the HP
LaserJet 4PJ printer are SERIAL and PARALLEL.
• variable = value — This parameter sets one of the
environment variables to the specified value. For example, the
@PJL DEFAULT RESOLUTION = 600 command sets the
default resolution to 600 dots per inch. See Appendix A for a
list of variables and values for each printer. If you need a more
detailed description of a particular variable, see the
“Environment Variables” section earlier in this chapter.
Note The supported variables and range of values for each variable may
not be the same in all HP LaserJet printer models. See Appendix A
for a list of the variables and range of values for each PJL printer. You
can also obtain valid variables and the range of values for each
variable by sending the INFO VARIABLES command to request this
information directly from the printer.
Parameters:
Comments:
The DEFAULT command enables you to specify default values for
either general variables, which are used by all personalities, or
personality-specific variables. All personality-specific variables, such
as the default PCL symbol set or the PostScript-specific variable
Parameter Variable Names
personality PCL ESCP
POSTSCRIPT (Other personalities may also
be supported)
port PARALLEL Supported on LaserJet 4PJ
only
SERIAL
variable Valid variables for each printer are listed in
Appendix A.
value Appropriate values for each variable are also listed
in Appendix A.