@steveinbuffalo First take a look at Which PostScript driver to use in Windows? - #4 by rijkr
The PostScript “%%For” tag holds the workstation session user id. This user id might be authenticated by a forced login to a Single Sign-On Domain or is just a local user of a device in a Peer to Peer Network context. Depending on which context you’re in, you can either mark the corresponding Queue of your SavaPage Printer as trusted or untrusted. Note: Queue /raw is reserved for Raw Printer Port 9100 (JetDirect).