i have just brouhgt my first phot printer. its an epson Stylus R240.
I have four ink cartridges, black, blue, magenta, yellow. On the cartridges there is a very small peice of square plastic covering the ink nossel. i made the assumption that you have to take these off to let the ink flow, but it is proving very difficult to take the small bit of plastic off. So is it meant to stay on there?