Solution
1. Press [Menu].
2. Press [Left cursor] or [Right cursor] to select [4.FAX SETTINGS], then press [Set] ([OK]).
3. Press [Left cursor] or [Right cursor] to select [3.TX SETTINGS], then press [Set] ([OK]).
4. Press [Left cursor] or [Right cursor] to select [1.ECM TX], then press [Set] ([OK]).
5. Press [Left cursor] or [Right cursor] to select [ON], then press [Set] ([OK]).
6. Press [Stop/Reset] to return to standby mode.
