In the middle of a print I had to my black ink cartridge and simultaneously had a print jam on the edge of the vinyl. After reseting the jam I replaced the black ink. I took the opportunity to shake up the other three ink cartridges. Now the indicator show me the cyan cartridge is empty, however, they are all full. I tried putting a piece of cardboard over the ink pouch but that did not help. My printer is out of warranty. Does anyone have any suggestions?