Canon MX870 Series User Manual page 777

> > Sending/Receiving Faxes Using the Operation Panel of the Machine
Advanced Guide
Faxing
Reception of Faxes Using ECM
Transmission/Reception of Faxes Using ECM
This machine is set to send/receive faxes in Error Correction Mode (ECM). If the recipient's fax machine
is compatible with ECM, ECM automatically corrects errors and resends the fax.
Note
If the sender's or recipient's fax machine is not compatible with ECM, the fax will be sent/received
without automatic error correction.
To receive color faxes, make sure that ECM RX is set to ON. For details, see
You can disable ECM transmission/reception. For details, see
Transmission may take longer when ECM is enabled.
> Transmission/
ECM RX .
ECM TX or ECM RX .
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