https://gizmodo.com/judge-rules-hp-must-face-lawsuit-over-disabled-printers-1850742791
I get grief about this at work all the time, someone calls about a color ink cartridge running out asking me how to change to black and white so they can keep printing until the new ink arrives, and I have to explain that HP586 pagewide color printers are dumb and will refuse to print even in black and white if a color cartridge is empty.
Get rekt HP