Enabling CUPS Printer Interface for Mac
CUPS is a network printing service used by Mac computers. It allows you to setup your printers on a network, and customise options such as cash drawer setup.
First off, go to http://localhost:631/printers/.
A screen will appear saying 'Web Interface is Disabled'
To enable CUPS:
1. Select and copy 'cupsctl WebInterface=yes'
2. Next, click the magnifying glass in the top right hand corner of your screen and search for 'Terminal'.
3. Once in terminal, paste in 'cupsctl WebInterface=yes' and click enter.
Now you should be able to go to http://localhost:631/printers/ and see your installed printers.
To change settings for your printer or to set up your cash drawer, click the desired printer.
Your username and password for CUPS will be the same as your Mac username and password. You can check your Mac username in System Preferences - Users & Groups.