QTR-Quadtone RIP

On 12/05/2011 05:35 AM, bgphoto100 wrote:
> Thanks for your input.
>
> I am currently running with cmyk inks out of the printers left side
> and cleaning ink on the right. You are correct about running a rip. I
> am currently using the colorburst rip for color and that is working
> out pretty well. Colors are extremely close on my final substrate.
> The inks I am running are from Graphics One and I am satisfied at
> this point. I had looked at the Sawgrass ink and found it to be
> expensive and heard of clogging issues from others.
>
> I am attempting to build a black and white setup with Quadtone RIP
> but had some questions regarding the ink characterization since I am
> only running cmyk. All the characterization and curve information
> deals with additional light colors whether they are light blacks or
> light cyan/magenta. Without them how do I properly create an ink
> characterization and curve for a neutral black and white print?
>
> --- In QuadtoneRIP@yahoogroups.com, "mrjimbo"<mrjimbo@...>  wrote:

Mix the black ink with cleaning ink to get grey inks for the side you 
run with cleaning inks right now? Together with the black already 
available you have 5 channels, 3 probably would be enough. QTR to create 
the partitioning + linearisation, it will be more difficult to get that 
done with Colorburst. The mixing might show a warmer than neutral grey 
range that can be compensated with the color inks available.

-- 
Met vriendelijke groeten,   Ernst
http://www.pigment-print.com/spectralplots/spectrumviz_1.htm

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