Determining printer defaults

When JES starts a printer, JCL in the PSF startup procedure establishes libraries. The initial parameters for the printer are set up from Infoprint Server Printer Inventory or the startup procedure. These parameters become the default values for the system. For an explanation of the JCL in the startup procedure, the Printer Inventory, and a general description of how PSF selects resources, see PSF for z/OS: Customization.