HP's out-of-the-box instructions are terrible and assume your printer might not be on your network. Any JetDirect-enabled HP printer requires no local process/s

HP's out-of-the-box instructions are terrible and assume your printer might not be on your network. Any JetDirect-enabled HP printer requires no local process/service on your workstations or other devices. You just throw PS/PCL at port 9100, or maybe IPP at 631, and install a reasonably-recent PPD for your printer's model line (this is the point of installing hplip from your distro). There isn't a driver per-se as the OS is responsible for creating the postscript and/or PCL from your document, just as it would for making a PDF. If you can't install a PPD you can just manually set the capabilities (duplex, highest PS version, resolution, tray sizes) in the native print UI, like for a mobile device