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INTRODUCTION
ECM (Error Correction Mode)
The Error Correction Mode (ECM) is a way for the MFC to check a 
fax transmission while it is in progress. If the MFC detects errors 
during fax transmission, if resends the pages of the fax that had an 
error. ECM transmissions are only possible between fax machines 
that both have this feature. If they do, you may send and receive fax 
messages that are continuously being checked by the MFC.
Your MFC must have enough memory for this feature to work.
Connecting the MFC
Connecting an external telephone
Although your MFC does not have a handset, you can connect a 
separate telephone (or telephone answering device) directly to your 
MFC as shown in the diagram below.
Connect the modular plug on the telephoneās line cord to the jack 
labeled EXT. in the back of the MFC. 
Whenever this phone (or TAD) is in use, the LCD shows
Telephone
.