Datacolor User to User Support Group.

Hi,

I have an EpsonR1800 and Spyder3Print3.5b9. For the step "Print Quality 
Check" the Software prints 6 columns of RGBCMYK. Does the software 
print the columns from each individual cartridge or is it printing 
generated colors that are produced from a combination of cartridges? I 
am asking because I am trying to measure the ink color from each 
cartridge and this would be better than what I am doing now (producing 
color blobs by swabbing ink from each cartridge on the paper). Doesn't 
have anything to do with profiling, just an ink experiment that I'm 
conducting.

Thanks,
Bob Schoner

On Nov 11, 2008, at 11:25 PM, rschoner wrote:

> Hi,
>
> I have an EpsonR1800 and Spyder3Print3.5b9. For the step "Print  
> Quality
> Check" the Software prints 6 columns of RGBCMYK. Does the software
> print the columns from each individual cartridge or is it printing
> generated colors that are produced from a combination of cartridges? I
> am asking because I am trying to measure the ink color from each
> cartridge and this would be better than what I am doing now (producing
> color blobs by swabbing ink from each cartridge on the paper). Doesn't
> have anything to do with profiling, just an ink experiment that I'm
> conducting.
>
>

Hi Bob:

It's just printing that image with the colors that you see, just like
any other RGB image you might want to print; it's not doing anything
special or unusual with the cartridges or the driver. There's no
difference between doing this and opening up a duplicate of that
image in Photoshop and printing it from there.

If you print this image with color management turned off in the driver
(just as you'd be setting up the driver underneath if you were going
to be printing a target), then you'll get as much ink as the driver will
give you for those "pure" RGB primary colors, based on your paper type,
output quality/resolution/speed settings.


David Miller
Senior Software Developer, Digital Color Solutions
Datacolor