Brother MFC-J825DW - Manual (Page 146)

Printing and Faxing
137
8
Advanced settings
8
Click Advanced to configure Layout, Change Data Transfer Mode, Advanced Duplex Settings and
Other Print Options settings.
Mirror Print
8
Check Mirror Print to reverse the data from left to right.
Note
(For Mac OS X 10.4.11 users and Mac OS X 10.5.x users)
Mirror Print is not available when choosing Transparencies as the Media Type.