You learned that your HP printer has fax capabilities, but you need to complete the HP fax setup before you can utilize this feature. Both the HP printer setup and your fax machine setup are simple steps that need to be followed. Sending a fax is similar to sending an email or letter via the mail, with the little distinction that faxes are thought to be more dependable or trustworthy than letters. The HP printer can be configured to fax over a standard landline connection.