Display the User Box screen.
For details on how to display the screen, refer to Here.
Tap [System] - [Memory RX].
Enter the password, and tap [OK].
Select a fax to send, and tap [Send].
Long-tap Fax; you can view the preview image.
Specify the destination.
For details on how to specify a destination, refer to Here.
Specify transmission options as needed.
For details on option settings, refer to Here.
Use the Start key to start transmission.