If you're printed pictures and photos aren't coming out the way you expected, then something might be wrong with your printer, specifically, the printhead might be dirty and might need to be cleaned. This is an easy troubleshooting step for Epson printers.
Often when printing photos with an ink jet printer, you may see banding or lines across the photo. Most often, this problem can be fixed if you clean your print head. This video provides step-by-step instructions for cleaning your print head and restoring crisp image quality to your photo prints.