QTR-Quadtone RIP

--- In QuadtoneRIP@yahoogroups.com, "Carl Schofield" <list@...> wrote:
>
> I've been working with my wife's Epson 380 printer to see if it
might be worth getting a 1400 
> later on.  So far I've made two profiles for the 380 using the OEM
Claria inks and the prints 
> are surprisingly good.  The first was a BO profile for Harman FBG. 
The second profile (380-
> Claria-EPGPP-2880 for Epson Premium Glossy) that I just added to the
Files>Curves>Epson 
> R380 folder uses a little bit of CMY ink to generate a composite
midtone gray that helps 
> smooth out the midtone grain and improves neutrality.  I would be
interested to know if 
> these profiles will also work with the Epson 1400 printer.


Hi Carl, I tried your curve an PGPP and UPGPP with my R265, it works
well and the test prints are a bit warmer than using just BO, so good.

I notice that there is a visible discontinuity (a step) near the deep
shadows, visible in the graph of the curve in QTR and in a print of a
"circular gradient", like the test images on NorthLight site:

http://www.northlight-images.co.uk/article_pages/black_and_white_test.html

http://www.northlight-images.co.uk/downloadable_1/bw_lin_test_1.zip


Andrea