HP 5100tn Printer Job Language - Technical Reference Manual - Page 105

The IPARM : port 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 SET RESOLUTION = 600 command sets the current resolution to 600 dots per inch. See the table below for all valid variables and values. If you require a more detailed description of a particular variable, see the "Environment Variables" section earlier in this chapter. Note The permissible environment 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 valid variables and the range of values for each variable, or send the INFO VARIABLES command to request this information directly from the printer. Parameters: Parameter personality port variable value Variable Names PCL ESCP POSTSCRIPT Other personalities may be supported PARALLEL SERIAL Supported on LaserJet 4PJ only Valid variables for each printer are listed in Appendix A. Appropriate values for each variable are also listed in Appendix A. Environment Commands 6-43