Network diagnostics says can't connect to Brother server

Everything was going fine for years when suddenly my Brother MFC-420CN won't print. It says "printer is offline". Status says "unable to connect to device". No problem with the USB cable. Downloaded and replaced the brother driver, deleted all other printer brands from my Library/Printer folder. Not sure how to get this going again, and need to print tonight in a big way. Anyone have any ideas??

Thanks for the feedback. Apparently, the printer wasn't showing up or was listed, but grayed out, leading you to check the USB cable. Good computing.

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