Digital BW, The Print

I just got a comment from a member of the Epson Wide Format group  
that he places a sheet of paper on top of his prints and lets them  
"gasout" and replaces the paper when curls with a fresh piece...if  
understood correctly. I think he does this after spraying but I'm  
still waiting to hear back on that.

Mark


On Jan 9, 2008, at 10:55 PM, Roger wrote:

> Paul, thank you very much. Very helpful.
>
> All,
>
> I am thinking these carbon inks are a solution to a major problem I've
> observed with the UltraChrome inks, to wit, even with UV protective
> glass, a few minutes in sun causes the ink to outgas a haze which
> condenses on the glass. The image changes in a way that resembles
> bronzing. This has happened to me at two different shows (Crested  
> Butte
> and Teton Village) at relatively high altitude, but I took care to  
> make
> sure the sun was only at a glancing angle--didn't seem to help. One
> additional piece of info is that both images were color.
>
> Fortunately, the condensed haze evaporated after the framed print  
> was in
> the dark for a couple of days. These images had been printed for two
> months before they were framed.
>
> 1. Will the glycerin suspension in the Eboni-6 ink cause the same  
> problem?
> 2. Are there 3rd party ink cartridges or CIS systems for the Epson  
> 7600
> that will accomodate the Eboni-6 ink?
> 3. Is it a plausible idea to buy a used 7600 to dedicate to the  
> Eboni-6 ink?
>
> I've got a 4800 using the standard Epson ink and profiles that I'm  
> quite
> pleased with, as long as the images are protected inside and away from
> the sun. I like to do some color printing, but the majority of my work
> is B&W.
>
> Roger
> Palmer Lake, CO
> www.mindseyephoto.com
>
> pr_roark wrote:
> >
> >
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com
> > <mailto:DigitalBlackandWhiteThePrint%40yahoogroups.com>, Roger
> > <user1@...> wrote:
> > >
> > > Paul,
> > >
> > > I'm new to this users list, so here's a couple questions:
> > >
> > > 1. What is BO printing?
> >
> > "Black ink only" printing; ...
> >
> > > 2. On your chart, is the Y axis something like a difference from
> > > expected value in db, or some other unit?
> >
> > The Y axis shows the Lab A and B units. Positive Lab A values
> > indicate red (more of a magenta-red to me), and negative Lab A  
> values
> > indicate green. Positive Lab B values are yellow, negative blue.
>
> whoa! I was way off in the concept!
>
> >
> > Paul
> > www.PaulRoark.com
> >
>
> 



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