Terry
Well-known member
I have an wireless HP 6510 photosmart all in one machine. Recently it developed and odd problem, it simply will not print black. It also does not read new cartridges as full but instead empty. It prints every other color and performs every other function normally. I bought two new black cartridges to try and cleaned the ink level sensors and ink port with alcohol and tried every diagnostic test and setting I know of. I hate to trash it as it is not that old but is out of warranty. Can anyone give some insight before I replace it????