Could be the ink cartridge is faulty. I assume you've checked its category number matches that of your printer? Easily done when tired and stressed during purchased, I've bought the wrong cartridge and had to return it.

Remove the cartridge, check underneath where the ink jets are and see if there is any cellophane accidentally left. Is there a small plastic tab on it that should be removed to allow both colour and black ink to flow? The only other thing is to turn off the printer, remove cartridge and replace it, then start the printer again. Sorry I don't know what else to do except get a replacement cartridge.