To add a new printer, follow these steps:
- Search "Managed Software Updates" from the Apple Spotlight Menu
- Click Optional Software after the update check is complete
- Scroll to or select the printer you're looking for from the list, and check the box next to it
- Click Update Software List
- Click Update Now. You can choose to log out, but it's usually not necessary.
Managed Software Update has all the brains behind it to ensure that the printer gets properly set up with all of the correct options and software.