Last night I made some prints on an Epson 7800. The ones worked in CS5 and printed from CS5 were dead on with color and tonality. I soft-proofed with the correct paper profile, and my NEC monitor is calibrated. And then I printed an image that I had originally worked in LR4 and exported to CS5 for final touches. Again, I soft-proofed in CS5 and used the very same printer driver settings that had worked well for the other prints. The print preview looked good as well. But the print color gamut and tonality were way off, especially the color which was way too red. Since the only variable was the LR4 adjustments, I was wondering if there was something imbedded in that files when exported to CS5 that would have changed the color profile despite its transparency when soft-proofing and in print preview. If so, should I export an LR4 image back to LR4 for printing after CS5 tweaks. Many thanks, all.
Ahh ... I don't think so.
Whatever Lr would embed in the files would be visible in CS5, too.
It is more likely that there is a profile mismatch. In CS5 in >Edit >Color Settings make sure that "ProPhoto RGB" is set as working RGB color space. Also make sure that the warning for profile mismatch is not supressed. Lr works in proPhoto RGB (or more exact a derivative of that) only; so the image is sent to CS5 with proPhoto RGB embedded.