Brother MFC-9325CW - Manual (Page 138)

Printing and Faxing
130
7
Duplex Printing
7
 Manual duplex
Select Paper Handling.
• (Mac OS X 10.4.11)
Choose Even numbered pages and print, and then choose Odd numbered pages and print.
• (Mac OS X 10.5.x to 10.6.x)
Choose Even Only and print, and then choose Odd Only and print.