Brother MFC-3240C - Manual (Page 127)

USING YOUR MACHINE WITH A MACINTOSH ® 8 - 5
Choosing printing options
To control special printing features, choose Print Settings in the
Print dialog box. You can change Quality, Media Type,
Color/Grayscale, Paper Thickness, Bi-Directional Printing and
Enhance Normal Printing settings.
See Resolution in Specifications of the User’s Guide.