Hello Geert,
I split your question into two parts.
1. Photo Printers:
Indemendent of printing technology, amount of used colors and so on,
a photo printer is a device that outputs images in photo quality.
There for you can use papers with the look and feel of a classic
photo (high glossy, semi matt, etc.).
A photo printer delivers printouts without visible dots and should
use color pigments for long life archivation.
The color gamut on photo paper should be simular or larger as a
classic photo print.
It doesn't matter if the technology uses CMYK, CcMmYKk or what ever.
2. Colors of an Inkjet Printer:
CMYK and CcMmYKk is the same from the point of colormanagement.
The use of a full color like C together with a light color c is only
to eleminate visible dots.
For example, to print 20% Cyan with a CMYK device, the printer output
are a few little points of C on the white paper.
If you are printing a big area of 20% Cyan you will see the dots.
With a CcMmYKy device, light cyan or a combination of C and c will be
used to print this color.
More ink is used to print and you will see no dots.
The combination of C anc, M and m, K and k is done by the printer
driver (or RIP software) and you don't have to care about this by
making an ICC profile.
Regards,
Clemens Beisch
http://colorxact.net
