my printer is only printing colour and not any black ink. I have changed the black cartridge for a new official HP cartridge and I have gone through the print head clean process 3 times but i am still only recieving prints withouht black ink. I have disconnected the printer from the wifi network and reconnected it. I have tried to copy a black & white document but the printer only prints a blank page. Does anyone know what else I can try? Almost identical to a previous poster except from a Dell laptop and it was fine yesterday.
Desperately need help!