When I try to align the print head on my BJC-5000 series printer, a warning indicates that the black cartridge is out of ink. Why?
A bug in the Canon driver software causes this erroneous warning when using the edible inks. The bug may also prevent the printer from printing black after the warning in order to protect the print head. Do not run the print head alignment. If you are at the point where the printer is giving you the warning, unplug the printer for 10 seconds and start over without accepting the request to align.