Brother INSTAFAX FAX2100M - Manual (Page 123)

V-10. SENDING FAXES WITH THE ECM FEATURE
10. SENDING FAXES WITH THE ECM FEATURE
Error correction mode (ECM) is a means for checking the integrity
of a fax transmission while it is in progress. ECM transmissions are
only possible between two machines which both have the ECM
feature. Also, the feature requires a certain amount of memory in
order to function.
To send a document in ECM mode set the document in the paper
feed.
FAX ENTER FAX NO.
COPY PRESS COPY KEY
MEMORY
CZI ECM
Press the MEMORY/ECM key to light the ECM LED and dial the
number of the destination. You can dial using the number keys or
use one-touch dialing, speed dialing or the Telephone Index.
Finally, press the START key to send the fax. As the document is
sent, the transmitting and receiving machines will constantly check
the transmission. If an error occurs, the erroneous part of the
transmission is automatically ignored and the relevant data re­
transmitted. The ECM LED remains on during transmission to
indicate that the fax is being sent in ECM mode.
If there is not enough machine memory available for ECM to work
properly, or if the receiving fax machine does not have the ECM
feature, the document is sent normally, that is, without any error
correction.In these two cases the ECM LED does not remain on
during the transmission - this indicates that the fax is not being
transmitted in ECM mode.
-
Since the units are constantly checking the data and may have to
retransmit some of the lines, there maybe a slight increase in
transmission time.
V-10-1