Brother MFC-3240C - Manual (Page 160)

8 - 38 USING YOUR MACHINE WITH A MACINTOSH ®
Scan to OCR:
In the General tab
You can enter up to a 30 character name in the Name for Custom
field. This name will appear as the button name.
Select the type of scan from the Scan Action field.
In the Settings tab
You can select Target Application, File Type, OCR Software,
Resolution, Scan Type, Document Size, Brightness and
Contrast settings.