You can send faxes by specifying a line and entering fax numbers from the printer’s control panel.
The basic method for sending faxes is the same as for standard faxing.
Place the originals.
Select Fax on the home screen on the printer's control panel.
Select the recipients to send the fax to on the Recipient tab.
To enter fax numbers manually, select Keypad, and then select Select Line. Select Sending and Receiving or Sending Only in Transmission Setting By Line. You cannot send faxes when you select a line that is set to receive faxes only. Note that Select Line is set to G3-Auto by default. Next, enter numbers using the numerical keypad on the LCD screen, and then tap OK to complete.
When Direct Dialing Restrictions in Security Settings is enabled, you can only select fax recipients from the contacts list or the sent fax history. You cannot manually enter a fax number.
Select the Fax Settings tab, and then make settings such as the resolution and the sending method as necessary.
Tap 
to start sending the fax.