The Network Print Facility uses the functional subsystem interface (FSI) to communicate with MVS™ JES. The NPF functional subsystem (FSS) writer processes each job on the JES output queue by JES output class, forms, and destination information. The DEST, CLASS, and FORMS parameters are used to create the record key for the routing file in JES implementations and, therefore, play an important role in determining where to print JES output.

The basic concepts for JES output processing are explained in Network Print Facility interfaces with JES. Operating the Network Print Facility provides additional information for defining the NPF FSS writer and tailoring it to your particular installation.

Be sure to see Checklist of the NPF tasks for JES users to verify that you have covered all the JES planning and customization tasks.