How do I change the print quality for a Dymo Printer on a Mac when printing barcodes?

Here are instructions on how to improve the Dymo Printer quality if using a Mac Computer:

In a browser, navigate to http://localhost:631/admin/

If you see 'Web interface is Disabled.' open Terminal on the Mac and run type the following into your Terminal and press Enter: cupsctl WebInterface=yes

You can now close out of the Terminal and start over by trying to access the CUPS Administration URL: http://localhost:631/admin/. Click on Manage Printers.

Click on the Dymo printer.

Click on Administration and choose Set Default Options.

Update the Print Quality: Barcodes and Graphics.

Then click Set Default Options. It will ask for a Username and Password. It is the Admin Login for the Mac.