QTR-Quadtone RIP

Paulo.
With some thought on this, it occured to me that you are correct but
only under the circumstance that you were to use Roy's Create-ICC
program to make special profiles using the epson driver. That would
mean that you would need to make your own curves for each ink set and
paper and so on. Or use the profiles from someone else with the same
printer,inks and paper. You might look at Paul Roark's web site for
information on that process.
 I think it would only be by chance that you could use one of the
generic profiles such as Graymatt.icc directly with the Epson driver
and get acceptable prints. You can test this easily when you finish
calibrating QTR for one setup with your machine and ink and paper. If
you print the edited image both ways I believe you will see the
difference immediately.
 I know that it does not work that way with my setup as I am using a
variable tone inkset, and printing from the Epson driver via print
preview or by directly converting to the graymaatt.icc would give only
a single tone and will not be linearised the same way as QTR was
calibrated.

Regards
Duane


--- In QuadtoneRIP@yahoogroups.com, Paulo Baptista
<paulo.baptista@...> wrote:
>
> Hi Duane,
> 
> >  I think that they amount to the same actions although I don't know
> >that printing via the Epson driver using the matt.icc or photo.icc in
> >print preview would give the same result as would using QTR to do the
> >printing after converting to one or the other.
> 


> I believe that when we select a print space in "Print with Preview"
we're 
> still in Photoshop (and therefore not yet using the printer's
driver), and 
> PS will then convert the file to the selected profile before sending
it to 
> the printer's driver (Epson or QTR/Gimp, in that case),  which (I
think) 
> amounts to the same effect than converting the image before going to
"Print 
> with Preview". So I think we can safely use the Print with Preview
feature 
> and still benefit from QTR's capabilities.
> 

> Regards,
> Paulo
>