From: "Graeme Gill" <graeme@xxxxxxxxxxxxx> .....
Looking at the gamut shape, my general reaction is that it's not the best separation I've seen from an Epson (is it an older model ? Are there any firmware updates for those things ?). It's not shaped much like a printer gamut, which means that you're not getting everything the colorants are capable of giving, and the black separation has the distinctive "cone" shape that hints at a poor black generation algorithm. Not much you can do about all that though. The black point is rather far from neutral, which perhaps hints why there are issues.
This is a (relatively) recent Epson, the 670, using Epson carts and paper. One unusual thing is that the swatches printed extremely dark, even with the film setting, which I believe uses the least amount of ink. Other than pure white, the brightest patch had a reading of Lab(87,-4,38).
Mike Russell www.curvemeister.com/forum/