Digital BW, The Print

Well, it's still the Enhanced black for me then. The Cone Museum black 
is way too light for me.

Jerry





Paul Roark wrote:
> Steve,
> 
> 
>>... Eboni K ... swab tests of that, [and] Museum K,...
>>the ebony was just a tad lighter. ...
> 
> 
> It's possible the sample of Eboni I have is an earlier one and that MIS has
> changed the formula a bit.  However, I suspect there might be a different
> reason the inks are not totally identical.
> 
> I think both MIS and Cone might do some final mixing and processing of these
> pigments.  While I suspect the input, raw pigment source is the same, the
> processing -- filtering and mixing to get the desired viscosity, etc. --
> might well be different.
> 
> What I found to be the same was the dmax, the tone of the inks, and the fade
> test results.  I, too, detect some differences -- the Eboni is a hair
> lighter at the 50% spot in black-only printing of the 21-step test file.
> 
> MIS may not be as comfortable with pushing the load up as high as the Museum
> black.  Perhaps such a difference would show up at the 50% patch, even
> though the 100% patch tested out as identical with the X-Rite.  As one
> approaches the dmax point, the amount of pigment needed to get any density
> increase goes exponential.  As an example, I tried double printing the Epson
> Archival black.  With one layer, the dmax was 1.50.  With a second layer --
> twice the ink -- the dmax was 1.52.
> 
> 
>>... for 7k
>>printer owners faced with changing inks: If you take the dampers of
>>the head, apply a syringe w/ bottom fill adapter, and suck out 15ml
>>of ink, you be into the new ink. ...
> 
> 
> I have not gone this far into my 7500.  How easy is it to take off the
> dampers and do this.  I have images of ink all over the place and springs
> flying across the room -- followed by a very expensive service call.
> 
> Paul
> http://www.PaulRoark.com
> 
> 
> 
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