David Musgrave looks at Troubleshooting Named Printers Issues. Just a hint, this is not a 3 step plan. David does a deep dive into Named Printers troubleshooting.
Troubleshooting Named Printers Issues – Developing for Dynamics GP
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.