Printer color alignment problem

[Tremorkill]

ok, I own a Epson Stylus CX4200 printer. I installed all the latest drivers, but somethings wrong. Whenever I try to print anything, the three color cartridges don't align properly. Like the blue is a little above the red which is a little above the yellow. it only does this when I try to print something from my computer. If I just use the straight up Copy Machine function from the printer, the colors print fine. I've tried everything that sort of relates to this problem on the epson troubleshoote website. I'm on an iBook G4 with the latest version of OSX. Any help would be greatly appreciated.