Solution
1. Press [Menu].
2. Press [Left cursor] or [Right cursor] to select [FAX SETTINGS], and then press [OK].
3. Press [Left cursor] or [Right cursor] to select [USER SETTINGS], and then press [OK].
4. Press [Left cursor] or [Right cursor] to select [TEL LINE SETTINGS], and then press [OK].
5. Press [Left cursor] or [Right cursor] to select [TX START SPEED], and then press [OK].
6. Press [Left cursor] or [Right cursor] to select the transmission speed for all documents you send.
You can select from the following speed:
33600bps/14400bps/9600bps/7200bps/4800bps/2400bps
7. Press [Stop/Reset] to return to the standby display.