Update the Driver or Firmware for your Brother machine
I updated my Windows 11 PC through Windows Update and I can no longer Print, Scan or Fax from my PC.
Update your machine's firmware using Brother iPrint&Scan (Android/iOS)
The "Scan to PC" LED indication is on or kind of zebra stripe appears on the machine's display when the machine is turned on.
Updating my machine's firmware using the "Firmware Update" menu or Brother iPrint&Scan results in an error.