Canon MF269dw User Manual page 402

<On>
<Confirm Entered Fax Number>
Select whether to require users to enter the fax number twice when it is entered by using the numeric keys.
Confirming the Entered Fax Number(P. 328)
<Off>
<On>
<Restrict Sequential Broadcast>
Select whether to prohibit sequential broadcasting, a feature that sends faxes to multiple destinations in
succession. Restricting Sequential Broadcasts(P. 328)
<Off>
<Confirm Sequential Broadcast>
<Reject Sequential Broadcast>
<Initialize Default Settings>
Select this option to restore the default fax transmission settings.
<Menu>
<RX Function Settings>
Specify settings for receiving faxes.
<ECM RX>
Enable or disable error correction mode (ECM). ECM checks for fax data errors and corrects them. To reduce
errors on sent faxes, see
<Off>
<On>
● ECM must be enabled on both the machine and the other fax device because error check is
performed on both the sending and receiving devices.
● Even when ECM is enabled, errors may occur due to telephone line conditions.
● It may take a longer time than usual to process data when ECM is enabled because the error check
and corrections are performed while the data is transmitted.
<Menu>
Setting Menu List
<Fax Settings> <TX Function Settings>
<ECM TX>(P. 392) .
<Fax Settings> <RX Function Settings>
<Initialize Default Settings>
<ECM RX>
395
<Yes>
Select <Off> or <On>