My printer has a poblem. I have a new black ink cartridge. Its a #50 lexmark Z715 black ink. i removed the protective tape off of it. I put it in the printer. The problem is when I printer something out no ink came out. The ink didnt drop on the paper. It didn't even leave the ink cratridge. How do get the ink to drop on to the paper? Is there a way I can unclog the nozzle or clean it so the ink will come out on to the paper?