Brother MFC-640CW - Manual (Page 64)

3 - 9 SETUP SEND
Dual Access (Black & White only)
You can dial a number, and begin scanning the fax into memory—
even when the machine is sending from memory or receiving faxes.
The LCD shows the new job number and available memory.
Your machine normally uses Dual Access. However, to send a
color fax, the machine will send the document in real time (even
if Real Time TX is Off).
The number of pages you can scan into the memory will vary
depending on the data that is printed on them.
If you get an Out of Memory message while scanning the first
page of a fax, press
Stop/Exit to cancel scanning. If you get an
Out of Memory message while scanning a subsequent page,
you can press Black Start to send the pages scanned so far,
or press Stop/Exit to cancel the operation.