QTR-Quadtone RIP

Yes, thanks Tom - I see what you're saying. But you've highlighted the problem that bods like me have - bods who don't have access to high end equipment for making prints - that I have to buy an ink set and then 'fit and forget' and hope that it comes out okay.

The moment I fitted the SG inks (no, there's no recommended workflow. You simply do as you suggest - set the render intent in Photoshop and set the paper/print res in the Epson driver and turn off ICC management. Thing is it made a fine job of the first B&W photo I printed. But the results are not consistent.
The idea of the SG set is exactly as you say - to combine all the five colour inks (they really are drab. The yellow is almost grey) to produce neutral grays. The reason I was interested in doing it in QTR is because rather than have an 'off' print using the standard driver and then apply a curve to try to fix it, I wanted to test the ink limits. I've been told (and have seen to some extent) that these printers when used with standard settings put down too much ink. So my colours may be off not because they can't produce neutral greys, but because the Epson driver is putting down too much ink. However much fiddling it might take, once I find a benchmark with QTR, I can then have total control over deliberate casts. I can then decide whether that suffices for my needs or whether to move up to 'better' full grey ink sets.
At the moment I want to try everything and see what works best. Even just your gray profiles installed on my system are a huge boon in Photoshop.

-- 
  Alan Ansell
  aansell@...

----- Original message -----
From: "Roy Harrington" <roy@...>
To: QuadtoneRIP@yahoogroups.com
Date: Fri, 30 Mar 2007 15:31:56 -0700
Subject: Re: [QuadtoneRIP] Re: Newbie help: Create New Ink/Paper profile in QuadtoneRIP

Alan,
As Tom has mentioned the inks were pretty tailored for the Epson color driver.
(you mentioned someone had recommended them -- did they also recommend
a workflow/driver for using them?)
You could use QTR for them but I think you'll be using the light color inks to
simulate the gray tones of the image. This would involve some trial to get the
"neutral" that you want. One way to do this is create 3 curves -- C,M,Y and
blend them with the QTR printing blend sliders. All this is a little
more involved
to get a neutral tone balance.
Other approaches are 1) to use Print Fix Pro software to create a
color ICC for the
Epson driver, 2) to use the color sliders in the Epson driver for tones.
Without having used the ink set I'm really not sure which will be easiest.
Roy
On 3/30/07, Tom Moore <[1]rtmlists8888@...> wrote:
> Alan
>
> SG is essentially a colour inkset (albeit with reduced gamut) with a
> single black. Since QTR is not a colour RIP, I suspect you might have
> more success with the SG inks using the Epson driver and the Lyson ICC
> profiles. Once you receive Printfix you will be able to create your
> own ICC's for the paper you want to use (again for use with the Epson
> driver).
>
> I could be wrong of course, but with a single black it does not seem
> practical to construct curves in the manner QTR permits with the Epson
> Ultrachrome inkset with 2 or 3 blacks. The other alternative is to
> construct magenta and cyan curves blended with black and then combine
> these curves with yellow to create something near neutral. That sounds
> to me like one would be trying to do manually what a colour RIP would do.
>
> Sorry to sound so negative about your venture. Perhaps someone else
> has discovered a way to do what you want and will chime in. If you do
> decide to continue with QTR and the Lyson SG inks, please keep us
> posted as to your progress.
>
> Tom Moore


References

1. mailto:rtmlists8888%40rogers.com
2. http://groups.yahoo.com/group/QuadtoneRIP/message/4335;_ylc=X3oDMTM1YnJzbGI5BF9TAzk3MzU5NzE0BGdycElkAzE0ODM0MzQ3BGdycHNwSWQDMTcwNTAxOTE4MgRtc2dJZAM0MzQ5BHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTE3NTI5Mzk4MwR0cGNJZAM0MzM1
3. http://groups.yahoo.com/group/QuadtoneRIP/post;_ylc=X3oDMTJxNXYzMXNpBF9TAzk3MzU5NzE0BGdycElkAzE0ODM0MzQ3BGdycHNwSWQDMTcwNTAxOTE4MgRtc2dJZAM0MzQ5BHNlYwNmdHIEc2xrA3JwbHkEc3RpbWUDMTE3NTI5Mzk4Mw--?act=reply&messageNum=4349
4. http://groups.yahoo.com/group/QuadtoneRIP/post;_ylc=X3oDMTJmYW1uZWozBF9TAzk3MzU5NzE0BGdycElkAzE0ODM0MzQ3BGdycHNwSWQDMTcwNTAxOTE4MgRzZWMDZnRyBHNsawNudHBjBHN0aW1lAzExNzUyOTM5ODM-
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6. http://groups.yahoo.com/group/QuadtoneRIP/files;_ylc=X3oDMTJncDdhM202BF9TAzk3MzU5NzE0BGdycElkAzE0ODM0MzQ3BGdycHNwSWQDMTcwNTAxOTE4MgRzZWMDZnRyBHNsawNmaWxlcwRzdGltZQMxMTc1MjkzOTgz
7. http://groups.yahoo.com/group/QuadtoneRIP/photos;_ylc=X3oDMTJmZm1hYnVyBF9TAzk3MzU5NzE0BGdycElkAzE0ODM0MzQ3BGdycHNwSWQDMTcwNTAxOTE4MgRzZWMDZnRyBHNsawNwaG90BHN0aW1lAzExNzUyOTM5ODM-
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9. http://groups.yahoo.com/group/QuadtoneRIP/database;_ylc=X3oDMTJkNXIxYzg2BF9TAzk3MzU5NzE0BGdycElkAzE0ODM0MzQ3BGdycHNwSWQDMTcwNTAxOTE4MgRzZWMDZnRyBHNsawNkYgRzdGltZQMxMTc1MjkzOTgz
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  18. http://docs.yahoo.com/info/terms/
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