My printer is not printing black ink. We replaced the ink cartridges and noticed that it isn't doing the automatic alignment that it's supposed to do on it's own after doing so. We also did all the trouble shooting recommended on the HP website like cleaning the printheads, aligning the cartridges, and even cleaning the vents on the cartridges but for some reason it still will not print black. When we print out the print report, it shows every color but black. Any help as soon as possible would be greatly appreciated.