QTR-Quadtone RIP

Zisskar

I don't have a R800 so I can't speak from direct experience with that
printer. However, since you are using Windows and QTRgui there is an easy
way to see what inks any QTR curves uses. Select the printing model and then
curve that interests you in one of the curve selection drop down boxes. Then
right click that drop down box. You will see a menu item for Show Curve
Graph. That will show you how the inks are used to create that curve.

In general, QTR can, and often does, use the all or most of inkset offered
by the printer. For example, the 2200 (my printer) the UC curve set
typically has a warm and a cool curve (plus others like sepia and selenium).
The Warm curve usually uses the K and LK inks. The Cool curve uses the K and
LK with the addition LC and LM to create a cool tone. For the Sepia curve
the Y ink is also used. In general, for 2200 UC curves, the L and M inks are
not normally used. The R800 inkset is different than the 2200's, so you
might have to look at some examples to figure out how to use it.

For R800 with Epson inks, you would use the QuadR800 printing model and the
Curves available under it. The QuadR800-NK7 printing model is for use with
the NK7 inkset from Inkjet Mall. The large set of paper options under it I
believe were provide by the ink supplier.

Aside from the effort by Roy and other developers, QTR is largely a communal
do-it-yourself project. The number of curves available reflects the
popularity printer/inkset/paper combination within the Digital BW printing
community. However, QTR does provide the means to create the curves you need
yourself, with some effort and other resources. So, no, there aren't a lot
of paper/ink options for the R800 with Epson inks - at least not yet. You
might ask on this list or the BW Printing List whether there are others with
this printer who might have curves to share.

As for using the existing EEM with other matte papers, of course you can do
it. You may or may not be happy with the results. If you do try it, you can
use the Shadow and Gamma adjustments in QTR to adjust the results to your
liking. It would have to be a trial and error process though.

Regards

Tom Moore

> -----Original Message-----
> From: QuadtoneRIP@yahoogroups.com [mailto:QuadtoneRIP@yahoogroups.com] On
> Behalf Of zisskar
> Sent: Thursday, May 18, 2006 11:03 AM
> To: QuadtoneRIP@yahoogroups.com
> Subject: [QuadtoneRIP] QTR on Epson R800 with UC inkset
> 
> Hi, I'm new to this. Until now I was using Qimage for color managed
> printing and I wasn't getting consistent results in b/w even with
> customed profiles.
> So, about QTR please answer the following questions.
> _Does QTR make use only of the 2 black inks that the UCinkset has?
> _Which of the 2, both or that depends on the curve being used?
> _For the R800 I can choose between QuadR800 and QuadR800-NK7. What
> exactly NK7 stands for and how can I utilize it?
> _For the QuadR800 model there are, in the latest nersion, only
> UC-EEnhMatte profiles.Can these profiles be used on other matte papers
> or not?
...