Digital BW, The Print

Paul,
I do not have a Piezo test strip and I wouldn't know how to get it. My plan
is to print a patch of each of the FS inks, put on the same piece of paper
something as a color reference and have it all scanned. Do you think this
approach can be precise enough? After all, all I need is the density of each
of the three grays relative to the black ink, so I can cope with scanner
inconsistency as long as the introduced variation is linear (i.e. equally
applies to each of the inks, and not to one more than to others). I hope
what I wrote makes sense, the idea is clear in my mind but I'm afraid my
english is not good enough :-)
 
Alessandro Pardi

-----Original Message-----
From: Paul Roark [mailto:paul.roark@...]


>I'm going to undertake the same task in the next days (I've just received
>the inks), with the following idea:

>1) Find out the actual density of the four FS inks (according to Paul Roark
>they should be very close to K = 100%, C = 84%, M = 38%, Y = 27%, which are
>the measured Piezo densities).

Those values are what I get on MY scanner.  I think the measured "densities"
are going to vary depending on your hardware.  The gamma settings are not
consistent among the scanners.  You need an actual Piezo test strip to use
as a standard.  You then measure that and use the reading you get with your
equipment to match the Piezo or other ink density.

So, eliminate the variables by using a standard test strip that is printed
and measured by the same equipment that will be used on the new inks.




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