HP 5100tn Printer Job Language - Technical Reference Manual - Page 117

DINQUIRE Command The DINQUIRE command is used to obtain the default value of a specified PJL environment variable. Use the DINQUIRE command to find the User Default Environment setting for any environment variable, including read-only variables. Syntax: @PJL DINQUIRE [LPARM : personality | ~IPARM : port] variable [] Response Syntax: @PJL DINQUIRE [LPARM:personality | ~IPARM:port] variable value LPARM : personality - This optional parameter is used to inquire about printer language-specific environment variables. For example, you can use this option to request the default PCL pitch setting. PCL is a valid personality. Other personalities, such as POSTSCRIPT, can be added as hardware options. Use the @PJL INFO CONFIG command to request the personalities installed in a particular printer. 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. 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 - This parameter specifies the environment variable about which you are inquiring. For example, the DINQUIRE DENSITY command requests the default toner density setting. See Appendix A for a list of valid variables for each printer. If you require a more detailed description of a particular variable, see the "Environment Variables" section in Chapter 6. Status Readback Commands 7-9