[argyllcms] Re: Profile Epson printer: Eye-one Photo LT or Design LT ?

On Tue, 2008-01-29 at 14:21 +0100, Geert Janssens wrote:
> Hi,
> 
> I am currently looking around to buy an X-rite Eye-one spectrometer. Based on 
> the feedback I got from this list, I have been looking for the Photo LT 
> edition.
> 
> I noticed there is also a more expensive edition, Design LT. The difference 
> seems to be that the Design LT can be used for profiling CYMK printers 
> (in "limited mode" whatever that may mean, while the Photo LT would only be 
> useable for RGB printers (also in "limited mode"). Is this a limitation of 
> the included spectrometer, or just the software bundled with it ? And what is 
> meant with this "limited mode" ?
> 
> I am asking because I don't know which one I should buy for my printer. My 
> Epson Stylus Photo 950 is a 6-color inkjet printer (Cyan, Light-Cyan, 
> Magenta, Light-Magenta, Yellow and Black). I would assume then that the 
> printer is a CMYK printer.

I am willing to bet it is an RGB inkjet printer.  My Epson 1280 is and
as far as I know all the commonly available inkjet printers expect RGB.
Of course at some point that has to be converted to the colors of the
inks, but you can ignore that part of the process.

In any case, I had no trouble profiling my 1280 with the Eye One Pro.

> 
> Also, I believe I read in the Argyll CMS documentation that what really 
> matters is the  Driver's color space, whether the driver expects CMYK or RGB 
> input. Or did I misunderstand ?
> 
> I am using the Gutenprint drivers on linux for my printer. And I think this 
> driver works in the CMYK color space, because I can tweak various cmyk 
> density options in the advanced driver settings. But I don't know for sure. 
> Anyone else know this ?

You are doing exactly what I have been doing.  I also use gutenprint.

> 
> One more question here. The Argyll documentation mentions that it can only 
> profile three color CMYK, but my printer appears to use five. Does that mean 
> I can't profile this printer with Argyll ?

No it doesn't.

> 
> Thank you,
> 
> Geert Janssens

Might I recommend again that you read a book like Real World Color
Management by Fraser, et. al.   It explains many of these matters, in
particular why most inkjet printers should be regarded as RGB printers.

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