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, it 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
Your MFC is equipped with a handset that you can use as a regular phone. However, you can also connect a separate telephone (or telephone answering device) directly to your MFC.
Connect the telephone’s line cord to the jack labeled EXT. on the back side of the MFC.
When this phone (or TAD) is in use, the LCD shows
Ext. Tel in Use, and, if the fax handset is lifted, an alarm sounds. To disconnect a call on the external phone and switch to the fax, press Hook/Hold.
Extension
Telephone
External
Telephone
Whenever this phone (or TAD) is in use, the LCD shows Ext. Tel In Use.
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