Why do I keep printing in blue

I have had the HP Photosmart 7660 for many years with no problem. Suddenly every photo is printing very little red or yellow. Mostly everything has a blue green tint. I tried changing the ink. I tried cleaning the print heads. I tried calibrating. I tried every setting I could think of. Finally I purchased a used printer in much better condition than mine was. It is the exact same type of printer and I have the exact same problem. So it is must be a setting that I am doing wrong. But how? What? Where? HELP! I love this printer!