Removing Printer That Is No Longer Required from List of Printers
Printer that is no longer in use can be removed from the list of printers.
Before removing printer, remove the cable connecting the printer and PC.
You cannot remove the printer if not logged in as the administrator. For information about an administrative
user, refer to the user's manual for the macOS.
1. Open System Preferences, and select Printers & Scanners
2. Delete printer from list of printers
Select the printer you wish to remove from the list of printers and click -.
Click Delete Printer when the confirmation message appears.