Same fix for most brands of printers…if cleaning heads doesn’t resolve the problem, try removing the black ink cartridge and after re-inserting it, check to see if the printer recognizes it or not. For some brands, if a printer does not recognize the cartridge, then hold the “stop” button for a few seconds and try again. Holding the stop button help to disable the Cartridge and after you start up again, it will sometimes recognize the ink cartridge. Also check to confirm your printer driver software is current.