from web site
Troubleshooting the printer is one of the ways to fix driver unavailable for Brother printer. Press the Windows + R keys to open Run. Type “msdt.exe/id PrinterDiagnostic” in the given field, and click on OK. On the page that shows up, click Next. Wait a moment, then choose the printer you want to fix. After that, click Next. Wait for the system to troubleshoot and provide the fix. Reinstalling the Printer Driver or updating the Windows Operating System are other fixes you can try.
