I had Photoshop 7.0 on my PC and printed to an Epson Stylus Photo R1900 with great results.
I purchased a MacBook Pro and tried printing some of the same art prints (transferred via hard drive) using Photoshop CS5 and the same Epson R1900 printer. The prints are very dark!! I switched to 'Printer manages color' on the advice of an Epson technician who said PS is managing color based on 4 ink colors. The Epson has eight colors. I have tried multiple settings, I bought a Color Munki and calibrated my monitor. I still can't get the same quality print that I got using my old PC and version 7.0 of Photoshop. Has anyone else solved this problem yet? I have found numerous comments online about the Epson R1900 printing too DARK!