Have you purchased ink that the ink guage in the printer says is half full? -

My printer uses HP 02 cartridges and it says a new one is half full. It is not one of the ones that you by in an economy pack that is deliberately half full either.

Ink level on the 02 is determined by the chip. Contrary to what they want you to believe, printers are not capable of accurately determining the amount of ink left or used up. They are just not that sophisticated, no matter how much you paid for it. The problem is most likely with the chip. It could be corrupted in some way, or perhaps the manufacturer installed the wrong chip on it, maybe the one for the smaller-sized starter black tank? But call customer service anyway. Now that you know how the ink level is determined, you might get a kick out of listening to the song and dance they give you. You might get a new cartridge out of them. I might call them myself, it would be fun to hear them touting the ink-level detecting capabilities of their PhotoSmart printers, and then trying to defend the integrity of their cartridge manufacturing, too.

call customer service Lexmark did that to me