Brother HL-4050CDN QuickStart for Mac OS X 10.11+
The Mac Tutorial Shows You Step-by-Step How-to Download and Install the Brother HL-4050CDN Color Laser/LED Printer Driver and Software on Mac OS X 10.12-Sierra/10.11-El-Capitan Unix/BSD Desktop.
Brother Color Laser Printers are fast, flexible and feature-rich. With high-speed, high-quality color laser printing, and flexible connectivity and network capability options, Brother color laser / LED printers are perfect for the home or office environment.

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Download Brother HL-4050CDN Printer Mac OS X Drivers:
Get the HL-4050CDN Series Printer Packages.
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Double-Click on .dmg Brother Archive on the Downloads Folder
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Double-Click on Brother Package icon
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Then simply Follow the Installation Wizard