Because Epson uses pigment based ink, you have to use paper that also uses pigment based ink. That's why photos printed with and Epson on HP paper don't look good.

Also, if you're using Photoshop, it could be a problem between PS and the printer. I went through this. Look on page 56 of your Epson manual to fix the problem.

As everyone else said, it could be the print heads, so try that first.

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Book Bee Bonnie
Bonnie Covel

I finally found an easy way to print my layouts! Yay me! Heritage Makers