Canon MX390 series Online Manual page 35

3. Use the button to select Fax settings, then press the OK button.
4. Use the button to select Security control, then press the OK button.
5. Use the button to select Check RX FAX info, then press the OK button.
6. Use the button to select ON, then press the OK button.
Important
Transmission will be canceled if the machine fails to receive the recipient's fax information or if
the received information does not match the fax/telephone number.