QTR-Quadtone RIP

Alan

I had described the procedure for matte papers, but the photo paper is
analagous. It seems that, buried deep in your lengthy reply, you are
doing what I would do when printing with QTR, i.e. converting your
image colour space using the ICC profile for your curve (in your case
the generic profile QTR-Gray-Photo) before saving the TIFF for printing.

The process works for me. I do see a small change on the screen
sometimes when I do the conversion. I think that's natural when you
consider that ink/paper would not have the dynamic range of a monitor.
However, you should be able to get as good blacks with QTR as you have
with Paul's curves and the Epson driver. If you're not (with the same
ink/paper/printer), then something is wrong. Possibly the QTR curve
you are using is the culprit.

On another note, although I haven't used UT2, I have used UT7, which
is a similar inkset design. I don't think the K is used when printing
on photo paper. I can see that's true (by looking at the qidf) for
QTR. I am almost certain that it's true for Paul's curves as well.

Tom



--- In QuadtoneRIP@yahoogroups.com, "Alan Ansell" <aansell@...> wrote:
>
> 
>  Hi Tom, thank you for your input. I was kindly referred to some
earlier posts that covered some of this topic. I have gone back and
read some of those also. That has helped to clarify a little more, but 

...

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