Canon imageFORMULA DR-C240 Office Document Scanner - Manual (Page 63)

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When you want to save a scanner driver setting
When you finish configuring a setting, click the [Save] button of [User
Preference] to save the setting.
The saved setting is registered to the list. You can delete a setting
from the list with the [Delete] button, and save or load a configuration
file with the [Back Up] or [Restore] button.