Re: Epson INK with the 7500 + 9500
Re: Epson INK with the 7500 + 9500
- Subject: Re: Epson INK with the 7500 + 9500
- From: email@hidden
- Date: Wed, 6 Dec 2000 09:24:28 EST
In a message dated 12/5/00 7:09:29 PM, email@hidden writes:
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Andrew Rodney wrote:
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Profiling these printers (and the 2000P) isn't any special issue. I've
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done
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it with many other products (ProfileMaker Pro, Monaco Profiler, ColorBlind,
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Color Visions ProfilerPro). These products can make very effective profiles.
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The problem is the metamerism of the inks and what that does for your lovely
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profiled prints OUTSIDE of D50 lighting. What makes you think this new
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software will do anything differently?
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Agreed, I have had varying degrees of luck profiling these inks with the
above packages and a spectro... its profiling them with scanner based
packages that is more difficult, and only the ColorVision stuff seems to have
the flexibility to get a good result.
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Hi Richard + Andrew,
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Unfortunately, I am unfamiliar with the Epson 2000. Do you mean the HP2000?
Nope the Epson Stylus 2000p, using the same encapsulated pigmetn inks as the
7500 and 9500...
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I am very sure that the DYE based ink used with the HP is very different
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from the PIGMENT/DYE fast drying ink used with the new 7500/9500 Epsons.
First, the new Epson ink is not a pigment/dye ink, as the MIS archival inks
are, its an *encapsulated* pigment ink, with unique properties (most of them
good, but one of them being a high degree of metamerism). The HP DesignJet
2XXXCP and 3XXXCP series use a more traditional pigmetn ink, with a long
life, a terribly limited gamut (lack of bright colors) and very little
metamerism...
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Seemingly, this INK was specially formulated to enable the EPSON to print
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the rated 6.9 SQM per Hour. In other words it dry's faster. I do also
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believe that it Has certain UV resistance qualities as well.
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Actually its much slower to dry that the dye inks it replaced, but thats a
limitation that needs to be lived with for the longer life exp[ectancy.
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The point I was trying to make was that the ink's, the way they mix, causes
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them to "Separate" when you put more than 180% of a possible 400% down
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on a
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Photo Glossy stock.
This type of ink is problematic on any glossy stock, and gets its best
results of matte or semigloss substrates...
The resulting effect of mixing this type of INK OVER
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180TD is indeed "Metamerism" outside the D50 Light to which you refer along
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with any other lighting condition you can throw at it.
I find the metamerism to be present even in matte samples, and to occur
whether or not such ink limits have been violated... keeping the inks from
mottling, however, is a significant goal with any ink, with or without
metamerism, and having profiling software that allows effective control of
the ink limits is always desirable, especially for CMYK profiles, where
profiles have more direct control over such factors.
C. David Tobie
Design Cooperative
email@hidden