My canon printer, iP4300, says that the yellow ink is out, when i is over half full. How can i print?

Every time I try to print, the computer says that the ink is out. Then, i ';replace'; it by opening it and removing it then putting it back in. But, it keeps on saying that the ink is out. How can i trick my printer into thinking there is ink so I can prink?My canon printer, iP4300, says that the yellow ink is out, when i is over half full. How can i print?
Select the option to print in White%26amp;Black