It provides a LAB graph, nothing more. You can certainly see where the short comings are though. Its helped me to relax a bit in trying to get prints to match exactly. There are certain areas that the printer just cannot get to.
Is there somewhere to go to be able to preview profiles for displays (other than EIZO of course) and printers prior to purchase? Is this something that a forum like LL would endeavor to do, a library of display and printer profiles. That could be helpful, or set unrealistic expectations...
1. There is no such thing as getting prints to match exactly. You are comparing a direct transmission of light with a reflected transmission of light and the two are just different. No amount of colour management will change that fact.
2. You can come a good part of the way to getting a workable matching by making sure that you view your monitor image with softproofing active and "Simulate Paper White" selected in the softproof options.
3. Every paper/printer combination has different characteristics and needs its own custom profile - if even limited to a generic profile for the combination, and given the very large number of such combinations, it isn't reasonable to expect any one source to generate and store a profile for every such combination on the market. And then there are all the displays.........
4.Chromix "ColorThink" ColorThink
is a software package that would enable you to compare profiles - for about USD 400 upward.
5. It is not only the size of the colour gamut which differs between displays and printer/paper combinations but also the shape. A modern Epson printer will print certain hues that are beyond ARGB(98) colour space, and others that are less. Most displays are about sRGB gamut, some nowadays reaching ARGB(98), so printing technology has reached the point where an srGB display will not necessarily show everything the printer will reproduce.