Datacolor User to User Support Group.

David Miller,

I am aware that you print targets out "Same As Source" without a profile and that is what 
we have been doing with all our many tests.

If you followed the earlier correspondence, I had written:  

"Should there be such a differemce between the generic Museo profile provided by Crane 
and the one I am making?"

C. David had suggested that: 

 "To check the printed gamut, open the 225 patch single page target from the PFP Targets 
folder, assign your workingspace, to it, and print to the Crane profile. That will show you 
what max colors the Crane profile can manage. Do the same with the PFP profile, and 
check the primary patches in that. If Crane is getting colors beyond PFP's, then there is 
definitely something amiss."


Trying the exercise C. David had suggested yielded results not quite similar.  Somewhat 
similar gamuts but different patches printed quite differently.   The canned Crane profile 
was made with THEIR 9800.  I am still trying to figure whether we have an erradic 9800.  

It's quite a learning curve to get the best possible.

thanks,

Bill






--- In colorvision_group@yahoogroups.com, David Miller <dm2363@...> wrote:

> You -don't- print targets through a profile. (It's physically possible,
> but this is not how you use a target, or the purpose of printing a target).
> And likewise, since you're not printing through a profile, there is no
> rendering intent to affect things.
> 
> The target is meant to be printed -without- a profile; with all color
> management disabled. When printed this way, the target print represents
> the uncalibrated (unprofiled) state of the printer, and what you get, and
> measure, should be based only on:
> 
> - The printer you've used
> 
> - The inks in that printer
> 
> - The print quality and media setting that you've chosen in the driver
> 
> When you print the target this way on Museo Max, on the 9800, what you get
> will represent the darkest black and the most saturated primaries that will
> be possible to achieve on that combination of printer, paper, print quality
> setting and driver media setting. This is -before- profiling.
> 
> If the target print, this way, gives you a weak black, and/or muddy primaries,
> there's nothing any profile can do to fix that. You can't boost what isn't
> there to begin with, and the target, printed as described above, shows you
> everything that's "there" to begin with.
> 
> If there are problems getting a "good" print of the target this way, then
> the only wy that this can be "fixed" or "improved" is by adjusting the print
> quality and media settings, directly in the printer driver (in this case,
> the 9800 driver).
> 
> 
> -- 
> David Miller
> Senior Software Developer, Digital Color Solutions
> ColorVision
>