Epson photo R3000 just cant print nice and fine colors, HELP!!!! please

As Phil already said, the Epson Print Preview colors will not be correct unless you are letting the printer manage color. Since you are not using Epson paper, you would not want to do that.

You obviously know how to post print screens from your computer. Please post the print dialog from the program you are printing from as well as the printer driver dialog so hopefully someone here can point you in the right direction.

Matt