Administration Guide : Output print queues : The print queues summary

The print queues summary
Once you have started print spooling services, they will run until you stop them manually or they are interrupted by some abnormal system event. They will also begin automatically when you reboot the server. The Print Queues, Summary page provides a list of all print queues managed by Xinet.
Note: AppleTalk printer queues display an Update Font List option, which when engaged will update the PPD for the queue with fonts currently loaded in the printer. It’s a good option to use whenever you see reports about missing/wrong fonts.