James, this might be a bit late for a response, but maybe not.

That has happened to me several times with both my Epson 2200 and 4880 printers. It is hard to figure out since I normally use profiles for my paper.

First I look to see if I have converted my image to the same profile as my paper profile.

If that does not work, I print out on RGB profile and that usually corrects the problem.

Also, turn off "high speed printing". You should have your image set to your profile, not to sRGB. If you need to default, use RGB for printing. sRGB is only good for web viewing and not the best for prints.