This policy setting allows you to determine whether Word, PowerPoint, or Excel validates its connection with a printer before attempting to use it in the Print tab in Backstage View.
If you enable this policy setting, Word, PowerPoint, and Excel do not validate printers before using them. If invalid data is returned from the printer, then Word, PowerPoint, and Excel still attempt to use the data, which can result in the application failing.
If you disable or do not configure this policy setting, Word, PowerPoint, and Excel validate printers before using them in the Print tab in Backstage View. If validation fails, the printer is disabled.