Hey There, I am Sofia Carter. When using a local cartridge, the hp printer won’t print black. Using a local cartridge or toner does not guarantee quality print. However, if you are using a genuine cartridge, you should consider other factors such as ink level, nozzle clogging, empty cartridge, or paper jamming. Aside from that, double-check your printer's black-and-white settings or set it to default. Finally, if the problem persists, call a printer expert.