Brother MFC-640CW - Manual (Page 136)

ControlCenter2
130
SCAN
10
There are four buttons for the Scan to Image, Scan to OCR, Scan to E-mail and Scan to File applications.
Note
You can configure your machine’s Scan key for each ControlCenter2 button in the Device Button tab.
Image
(example: Apple
®
PreView)
10
The Scan to Image feature allows you to scan an image directly into your graphics application for image
editing. To change the default settings, click the button while holding down the Ctrl key and choose
Software Button.
If you want to scan and then crop a portion of a page after pre-scanning the document, check Show Scanner
Interface box.
Change the other settings, if needed.