Enabling ECM Transmission
You can send fax documents using the Error Correction Mode (ECM) when sending without using the Address Book or one-touch buttons.
ECM reduces the effect of system and line errors on documents that occur while sending or receiving with another fax machine that supports ECM.
This mode can be set when the Fax function is available for use. For information on the optional products required to use the Fax function, see "Optional Products Required for Each Function."
IMPORTANT
If you want to transmit using ECM, it is necessary that ECM Transmission be set in both the destination machine and this machine. This function does not operate unless ECM is set in both machines.)
If the other machine does not support ECM, this setting is ignored.
If communication errors occur or the transmission speed appears to be extremely slow, you may be able to speed up transmission time by turning ECM 'Off'.

1.
Press (Settings/Registration).
2.
Press [Function Settings] → [Send] → [Fax Settings].
3.
Press [ECM TX].
4.
Press [On] → [OK].
If you do not want to send fax documents using ECM when sending without using the Address Book or one-touch buttons, press [Off].

IMPORTANT
Even when you set ECM, errors can sometimes occur due to a poor telephone line connection.
If there is trouble with the line, it will take more time to send the documents.
To send using ECM by specifying a destination in the Address Book or a one-touch button, it is necessary to set <ECM TX> to 'On' when registering the destination to the Address Book. (See "Registering a Fax Number.")
» Settings/Registration » Function Settings » Send » Fax Settings » Enabling ECM Transmission
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