My Brother multifunction has been without CYM inks for literally years, which was fine as I printed in only B&W. A recent system update has suddenly made it ref

My Brother multifunction has been without CYM inks for literally years, which was fine as I printed in only B&W. A recent system update has suddenly made it refuse to print anything, including B&W, because one or more color inks are empty, despite the black being 80% full. Brother saw the money on the table and have decided to move towards the dark side.