[argyllcms] Printer: CMYK or CcMmYK or ...

Hi,

A more general question on printers: if you look at the wide range of printer 
models these days, you find printers with 4 colors (CMYK), 6 colors (CcMmYk) 
or even 8 or more colors (???).

At the same time, all of these models claim to be "photo" printers. So I start 
to wonder about the value of more than 4 basic colors. Do these 6-color or 8-
color printers really have a larger gamut than the 4-color versions ?

And also, suppose i use argyllcms to profile these printers. As far as I 
understand argyll only profiles CMYK (4 primaries) and not 6 or more 
primaries. I am told that if the printer is "well behaved", this is no 
problem. But would I then still have any benifit from the additional color 
cartridges ? I mean, if more than 4 primaries would potentially give me a 
larger gamut (my first question), would the fact that argyll only works with 4 
primaries not be the limiting factor in the output chain ?

I hope I make some sense here...

Thanks,

Geert

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