If you have a printer (for ordinary print, not for braille), it should be set up the same way as for any printer on your Mac. This is normally done through the System Preferences: Printers & Scanners dialog.
Please click on the following link for detailed instructions on setting up your printer in DBT:
Note: This topic refers to your ink printer. For information about setting up your braille embosser, see Global: Embosser Setup.