QTR-Quadtone RIP

I'm looking at various curves and noticed that the K7-1440-HanPhotoRag
with the Quad2200-NK7 uses all the inks and the linearization values
run from the highest to the lowest.  All the other ink curves run from
the lowest to the highest and use only some of the inks.  I thought
the values must run from lowest to highest.  Also all the NK7 ink
descriptor file aren't available.  Is this a piezography proprietary
thing?

Tom

Tom,

We produce the NK7 curves with a proprietary software system that we built in-house, and 
then make these compatible with QTR, and send them to Roy Harrington. This is why there 
are no descriptor files. Its a different system. But the end effect is making as perfect a set 
of curves as possible.

regards,

Jon Cone


--- In QuadtoneRIP@yahoogroups.com, "Tom Husband" <thusband@s...> wrote:

> I'm looking at various curves and noticed that the K7-1440-HanPhotoRag
> with the Quad2200-NK7 uses all the inks and the linearization values
> run from the highest to the lowest.  All the other ink curves run from
> the lowest to the highest and use only some of the inks.  I thought
> the values must run from lowest to highest.  Also all the NK7 ink
> descriptor file aren't available.  Is this a piezography proprietary
> thing?
> 
> Tom

Excuse the dumb question, but using the NK7 curves, you'd still linearize for your printer, 
right?

Ed

--- In QuadtoneRIP@yahoogroups.com, "piezobw" <piezobw@c...> wrote:
> Tom,
> 
> We produce the NK7 curves with a proprietary software system that we built in-house, 
and 
> then make these compatible with QTR, and send them to Roy Harrington. This is why 
there 
> are no descriptor files. Its a different system. But the end effect is making as perfect a 
set 

> of curves as possible.
> 
> regards,
> 
> Jon Cone

Hi Ed,

Not dumb at all.  I wonder the same thing but if there
are no descriptor files how can it be done?  It seems
to me that the only way would be to create your own
curve, measure the patches for the descriptor file and
then linearize.

Tom

--- edrudolpho <erudolph@...> wrote:


---------------------------------
Excuse the dumb question, but using the NK7 curves,
you'd still linearize for your printer,
right?

Ed

--- In QuadtoneRIP@yahoogroups.com, "piezobw"
<piezobw@c...> wrote:
> Tom,
> 
> We produce the NK7 curves with a proprietary
software system that we built in-house, 
and
> then make these compatible with QTR, and send them
to Roy Harrington. This is why 
there
> are no descriptor files. Its a different system. But
the end effect is making as perfect a 
set
> of curves as possible.
> 
> regards,
> 
> Jon Cone


 
   
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---------------------------------

John,

InkjetMall built a unique profiler for monochromatic inks. Originally
it used it to produce 
the ICC profiles of PiezographyBW ICC. IJM also uses it for the
custom profiles it produces 
for Piezography iQuads customers. It was adapted for use with Roy
Harrington's QuadTone 
RIP. A simple target is printed and measured via a spectrophotometer.
It is a short 
process. The software's internal complexities are not going to be
published at this time. 
The goal in the ICCs, iQuads, and QTR curves is absolute smoothness
of tone through 
crossovers, and dot-less-ness. The results can be plotted against any
reasonable Gamma. 
We are plotting QTR curves against Gamma 2.2. PiezographyBW ICC and
iQuads are 
plotted against the Gamma 1.8. I hope that this is enough information
to satisfy your 
curiosity.

regards,

Jon Cone
InkjetMall

--- In QuadtoneRIP@yahoogroups.com, "John Moody" <moodymz3@y...>
wrote:
> The curves from inkjetmall were not created with Roy's
software, so no
> descriptor files exist.  The channel crossovers are very smooth,
something
> you don't get using the QTR curve generation tools.  I'm
patiently waiting
> for information on how those curves were created, as I would like
to create
> curves with similar smooth crossovers.
> 
> Best regards,
> John Moody
> 
> -----Original Message-----
> From: QuadtoneRIP@yahoogroups.com [mailto:Quadto
neRIP@yahoogroups.com]On

> Behalf Of Tom Husband
> Sent: Tuesday, October 04, 2005 2:07 PM
> To: QuadtoneRIP@yahoogroups.com
> Subject: Re: [QuadtoneRIP] Re: NK7 Ink
> 
> Hi Ed,
> 
> Not dumb at all.  I wonder the same thing but if there
> are no descriptor files how can it be done?  It seems
> to me that the only way would be to create your own
> curve, measure the patches for the descriptor file and
> then linearize.
> 
> Tom
> 
> --- edrudolpho <erudolph@p...> wrote:
> 
> 
> ---------------------------------
> Excuse the dumb question, but using the NK7 curves,
> you'd still linearize for your printer,
> right?
> 
> Ed
> 
> --- In QuadtoneRIP@yahoogroups.com, "piezobw"
> <piezobw@c...> wrote:
> > Tom,
> >
> > We produce the NK7 curves with a proprietary
> software system that we built in-house,
> and
> > then make these compatible with QTR, and send them
> to Roy Harrington. This is why
> there
> > are no descriptor files. Its a different system. But
> the end effect is making as perfect a
> set
> > of curves as possible.
> >
> > regards,
> >
> > Jon Cone
> 
>

Jon, in other words, it isn't part of the NK7 process to linearize your printer, e.g., a 2200.  
Is that right?

Ed

-- In QuadtoneRIP@yahoogroups.com, "piezobw" <piezobw@c...> wrote:
> John,
> 
> InkjetMall built a unique profiler for monochromatic inks.... snip... I hope that this is 
enough information
> to satisfy your 
> curiosity.
> 
> regards,
> 
> Jon Cone
> InkjetMall

snip
> > 
> > --- edrudolpho <erudolph@p...> wrote:
Excuse the dumb question, but using the NK7 curves,

> > you'd still linearize for your printer,
> > right?
> > 
> > Ed
> >

--- In QuadtoneRIP@yahoogroups.com, "edrudolpho" <erudolph@p...> wrote:
> Jon, in other words, it isn't part of the NK7 process to linearize your printer, e.g., a 
2200.  
> Is that right?
> 
> Ed


Its an out of the box experience with our profiles... give it a try!

Unless your printers is a distant cousin to what the 2200 is supposed to be you will have 
success from the go. So download the latest version as our profiles are built-in and print!

regards,

Jon