Though I have looked at 100's of posts on this problem, I am yet to see any real feedback on what has been successful.
After installing a new HP black cartridge on my C6180, no black ink!?!? Ink level shows full and I've cleaned the printheads, aligned the printheads, tried a new ink cartridge, did a reset - hard and partial, sang the national anthem, did a jig with a pig and drank 11 bottles of wine.
All to no avail!
The only thing that may work that I've seen is cleaning the printheads over and over again until black returns.
Has anyone achieved success by this method.