Solution
1. Press [Additional Functions].
2. Press [Left cursor] or [Right cursor] to select [FAX SETTINGS] then press [OK].
3. Press [Left cursor] or [Right cursor] to select [RX SETTINGS] then press [OK].
4. Press [Left cursor] or [Right cursor] to select [MANUAL/AUTO] then press [OK].
5. Press [Left cursor] or [Right cursor] to select [OFF] then press [OK].
6. Press [Stop] to return to standby mode.
