Brother MFC-640CW - Manual (Page 58)

3 - 3 SETUP SEND
How to Fax
Color fax transmission
Your machine can send a color fax to machines that support this
feature.
However, color faxes cannot be stored in the memory. When you
send a color fax, the machine will send it in real time (even if Real
Time TX
is set to Off).
Faxing from the ADF
Put the document face down in the ADF.
1
If it is not illuminated in green, press ( Fax ).
2
Load your document.
3
Dial the fax number.
4
Press Black Start or Color Start .
The machine starts scanning the document.
Delayed fax and Polling Transmit features are not available in
color.
To cancel, press Stop/Exit .
If the memory is full, it will be sent in real time.