Dan, I've not looked at your epl, but I would wonder whether you're not simply observing the inherent limitation of density and choma on this type of material with those inks. That likely dictated the prelimitation of those channels. A "pink" magenta sounds about right for a matte paper, as do a strong yellow (relatvely unaffected by the surface) and a pretty good black (below 20 L*) with matte black ink. A good indication is given by looking at the gamut plot of an RGB profile I saw for that printer on matte proofing paper--fits your description, and those limits were not imposed by your contone driver. If you give us the actual solid lab values you've obtained I'm sure any number of us could tell you if they are normal and expected for such materials with this ink set. Mike
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Message: 1 Date: Sun, 04 Sep 2016 06:33:56 +0000 From: Dan Bergstrom <DanBergstrom@primarycolor.com> To: "colorsync-users@lists.apple.com" <colorsync-users@lists.apple.com> Subject: Epson SC-P20000 Message-ID: <ADB706771A981640A52486D9BF1027389D9B8368@PR1-LATIRV-EX1.primarycolor.lan>
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EFI has no HT driver for this printer. Disappointing. And cyan and magenta channels for all matte black media types have been severely limited. So I'm left with a linearization of an astronomically high yellow b*, very low black L* and a baby blue cyan with pink magenta. Anyone have any insight on this?
thanks
-- Dan Bergstrom | Color Technology and Quality | PRIMARY COLOR ORANGE COUNTY http://www.primarycolor.com | T 949 660 7080 C 949 616 4986
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