HP Photosmart P1100

Hey guys, see if you can help me with this- every time I start it up to print something (in color), I have to clean the print cartridges to get a clear picture. If I don't, the picture will have white streaks through it (straight lines). My color cartridge has about 85% left. Can you tell me how to fix it so that I won't have to clean the cartridges before I print color stuff?