Brother HL-7050N - Manual (Page 96)

APPLETALK (ETHERTALK) TCP/IP PRINTING 7 - 8
YL4US_FAX2800MFC4800-FM5.5
Macintosh Configuration (OS X v. 10/10.1)
The appropriate PPD file supplied with your printer must be installed.
Insert the CD-ROM into the CD-ROM drive of your computer. Select
the Mac OS X folder. Double click on the PPD_Installer.pkg icon
and follow the on-screen instructions.