My printer will not print in color, only black and white.

I have an Epson NX 420. I have set it up to my laptop, and am able to print off of my computer. But when I go to print a document out of pages, even though it says it is in the color mode it only will print out in Black and White. Is there something I should be downloading? I do know that the printer can and does print in color, because everything works perfectly fine on my Windows computer.