Three weeks ago I put in a new capping station. It worked great until I printed about 50 shirts with just black ink. They printed just fine I started printing color shirts again and it would not print yellow or red. It will print black and blue ink. We sucked the air out of the lines and re filled the ink cartridges checked for clogs cleaned the print head as recommended and still no red or yellow. I forced yellow and red through the print head carefully with a syringe and the ink came through. The docking station only has black and blue on it not the 4 bands of colors like normal. Please help!