Digital BW, The Print

--- "ccolbertbw" <ccolbert@u...> wrote:
>   Remember that this is using QTR and gimp-print. The 
>   final files produced by Roy's calibration procedure 
>   just tell the driver how much ink to put out for each 
>   pixel value. These are just text files, so, it is easy 
>   enough to just replace all values with zero for all 
>   inks except the one of interest. 

Aha. Fiendishly clever. So one could produce profiles called,
"JustC", "JustY", "JustM", "JustK", and so on, which direct 
QTR to use the one ink, then print a grayscale ramp.

I also see your point that running a calibration pretending 
there is only 1 ink is a good quick method.

I need to spend some time doing some basic exercises, such as
setting up a curve file that prints each ink, another that prints 
them all just like the Epson driver, etc, before I understand 
this completely. I know that's somewhat academic--I could just 
start printing with the curves I have now, having corrected the
constant in the code. But I would like to understand how this all
works a little better.

Thanks, that was helpful.

-david