Ares, this I believe is the first time you mention colour shifts. I have not heard complaints about that, and I know quite a few Mac OSX users operating Epson professional printers without such complaints
It has been mentioned even on this forum some time ago:http://luminous-landscape.com/forum/index....hl=salmon+color
It's called "salmon color" because the most noticeable shift happens in yellow/orange region. The easiest way to discover if you are affected is to print the first A4 sheet of Bill Atkinson's 1728 target. Since the color patches are sequential, an unwanted shift is immediately recognizable. I've had this problem and solved it by the workaround I've already described. Never heard a word from Epson about it.
Now, the default color profile for Epson LFP has always been "Standard". In ColorSync this is the printer profile with the blue dot next to it.
But with Leopard drivers the default profile has changed to PLPP250. Why? Because this solves the issue? Or because this masks the issue, since PLPP250 is one of the profiles with the larger gamut? It is believed that the color shift is due to an unwanted profile conversion of the already prematched data, so converting to a profile with a larger gamut would have less impact on color appearance.
The aspect of it that is most troubling is your comments on support from Epson. I don't know which of their worldwide branches you are dealing with, but here in North America they're pretty good. They virtually closed down their Canadian operation and
Maybe I'll try to contact them to see if they are interested in my findings.
Just to clarify: I have NOTHING against Epson printers, or Epson itself. I've spent thousand of euros on Epson LFPs and I've been extremely satisfied. I've printed on almost every paper and every canvas on the market, never a problem, the straight paper path is wonderful, never had issues of banding or head strikes, output quality has been (and is) always impeccable.
It's only that Epson support for OSX is lacking, and, at least here in Europe, they are not interested at all in improving it. Just another example: the version of LFP Remote Panel utility available on Epson european web sites is still the original 1.0b wich doesn't work neither with Leopard drivers nor with the latest Tiger drivers. I've had to download the newer version available from Epson USA site. Unfortunately this version doesn't work with Leopard drivers, so for now I have to use the Windows version instead. Note that on european sites the Leopard driver is not a beta one, is presented as final (version 6.11), so we have the driver and not a working LFP Remote Utility. And again, no mention of the problem by Epson. One could waste hours trying to figure out why LFP Remote Utility doesn't communicate with the printer.