Error message wrong cartridge

Rover,

There in is the problem, these cartridges are not made to be refilled. You are lucky to have got away with this for this long. The most likely scenario is that your printhead has now failed which is why it will not recognise your cartridge.
The first thing you might try is to go out and buy a new cartridge. If this fails, then you will need to replace the print head. In this case, you would be better off calling it quits and getting yourself a new printer.

I am sorry if this is not all that you want to hear, but that is the facts and I would be doing you an injustice to tell you otherwise.

Gremlin11

its not a true fix but I had the same issue. I turned off printer and slightly moved the paper thickness lever over a few inches. I turned it back on and the cartridge error was off. I do get a pop up from my printer program on the computer every time I initiate a print job asking to correct the lever, I click OK and it prints. I know its aRube Goldberg fix but I need this printer every day for work and for now it works.

WRONG CARTRIDGE MESSAGE ON MY PIXMA 780,,,,,SHAKEELS HELP