Canon PIXMA MG4200 Series On-Screen Manual page 248

Scanning starts.
Note
Click Cancel to cancel the scan.
When scanning is completed, the image appears as a thumbnail.
Note
Click Save to save scanned images.
Save Dialog (Scan View)
You can set the save location for scanned images on the Advanced Settings tab of the
Preferences dialog displayed by selecting Preferences... from the My Image Garden menu.
See "Preferences Dialog" for details on the setting procedure.
Note