Send Start Speed
This mode enables you to change the send start speed. This is useful when there is difficulty initiating the sending of a document.
For information on the optional products required to use this function, see "Optional Products Required for Each Function (imageRUNNER ADVANCE C9280 PRO/C9270 PRO)" or "Optional Products Required for Each Function (imageRUNNER ADVANCE C7270/C7260)."
1.
Press 
(Settings/Registration).
(Settings/Registration).2.
Press [Function Settings] → [Send] → [Fax Settings].
3.
Press [TX Start Speed].
4.
Select the desired start speed → press [OK].
If your document transmission is slow in starting, this may mean that the telephone lines in your area are in poor condition. Select a slower speed. You can select [33600 bps], [14400 bps], [9600 bps], [7200 bps], [4800 bps], or [2400 bps].