Things that will change your colors when printing
1) Different working spaces (Adobe1998, US Swop Coated 1, sRGB, etc.)
2) Rendering Intent (Perceptual, Absolute, etc)
3) Materials (Cast, Cal, Paper, Banner, etc.)
4) Quality Settings (360x720, 720x720, 4 pass, 8 pass, etc.)
5) Profiles...