HP Color LaserJet 5500 Technical Reference Manual page 95

Syntax:
@PJL DEFAULT [LPARM : personality |
IPARM : port ] variable = v alue [<CR>]<LF>
LPARM : personality — This optional parameter is
used to set personality-specific environment variables.
PCL is a valid personality. Other personalities, such as
PostScript, can be added as hardware options. Use the
INFO CONFIG command to request the range of values
for all personalities installed in a particular printer.
LPARM : personality — This option must be used
when setting personality-specific variables.
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.
Environment Commands 6-33