Canon i-SENSYS MF729Cx Important Safety Instructions And Installation Manual page 302

Settings
Select the item you want to set, and change the default value.
File settings
<Menu> <Scan Settings>
value of the selected item
Settings
Select the item you want to set, and change the default value.
LINKS
Scanning Documents Directly to USB Memory
Sending Documents as E-mails Directly from the Machine
Sending I-Faxes
Saving Documents Directly to a Shared Folder/FTP Server
Specifying Detailed Settings
Scan Settings
<File Settings> <Change Default Settings>
<Apply>
Select the setting Change the default