You can create the RGB-CMYK device link profile by using Color Centro Profiler.
Click [RGB-CMYK Device Link Profile] on [Profile Management] screen.
You can also click the [File] menu - [Profile Type] - [RGB-CMYK Device Link Profile].
Click [New].
A wizard is started and the [Confirmation of procedure] screen is displayed.
Confirm the contents, click [Next].
The Profile Determination screen appears.
Go to Select Profiles.