I have a Pixma Canon MG7120 and I am out of all other ink besides black. I have all of the cartridges still in even though they are empty. A prompt comes up asking if i want to cancel print or shop for more ink, but in the instructions of the prompt it says "If you would like to print in just black ink, then hold the STOP button for 5 seconds." I do so and it just continues to print the black and white print.
