Samsung SCX-5639FR-XAA - Manual (Page 286)

Scan features
126 4. Special features
8 The document is scanned and the image preview appears in
the Preview Pane.
9 Drag the pointer to set the image area to be scanned in the
Preview Pane.
10 Select the option you want.
11 Scan and save your scanned image.
For later use, you can save as your scan settings and add it to
the Job Type drop-down list.
Editing an image with Image Manager
The Image Manager application provides you with menu commands
and tools to edit your scanned image.