how to get Brother MFC-L2750DW working with my Mac
How to get Brother MFC-L2750DW to work with my Mac without direct wire hookup
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You didn't say what macOS version is installed on your Mac. That is available at Apple menu > About this Mac.
The Brother MFC-L2750DW supports AirPrint. To use that on a Mac, see: Print documents from your Mac - Apple Support
Also, you can download the Brother iPrint&Scan app from the Mac App Store.