Datacolor User to User Support Group.

I have two scenarios that I use to print Spyder3Print targets without 
color management.  Please tell me if these are correct:

In Windows XP, printing targets from Spyder3Print 3.5b9 with the HP 
B9180 I would print with Application Managed Colors.  That setting in 
the printer drivers would give me target prints with no color 
management. Using the profile I get a magenta cast in my B&W image 
prints. I used the 225 and B&W calibration targets.  (I can correct 
the cast in the profile using the edit options in Spyder3Print.)  I 
convert the image from Prophoto to Adobe RGB 1998 and use perceptual 
with black point compensation when printing with the profile.  After 
reading posts in the forum I will try saturation without black point 
compensation when I print again using the profile.

If I print the targets from Photoshop CS3 I have the option of 
selecting No Color Management in the Photoshop CS3 Print menu along 
with setting Application Managed Colors in the Printer Driver.  I 
haven't tried this method yet.

In both scenarios I use the paper and paper setting I would use with 
the profile.  Target prints are dried-down for several hours to a 
whole day.  When I print images with the profiles in PSCS3 I use 
application managed colors in the B9180 drivers.

I calibrated the Datacolor 1005 and get readings of L 89+ and A/B 
of1.34/.74 ( A/B could be reversed)

Based on what I read in one the posts on the forum, a magenta cast 
might indicate that color management might not be off when printing a 
target.

Sorry for the lengthy post but reading around the Web is a little 
confusing on color workflows.

Regards

DavidL


--- In colorvision_group@yahoogroups.com, David Miller <dm2363@...> 
wrote:
>
> 
> On Nov 15, 2008, at 7:24 AM, fred_bjorksten wrote:
> 
> > I am another one who would like to check on the device. The 
reason is
> > that I am getting too much magenta into my prints. Various 
efforts to
> > identify the cause have failed. Whites are OK. If I print one of 
the
> > Spyder 3 test charts using the profile I previously made with 
Spyder 3
> > Print, would it be possible to measure with the device a few color
> > chart rectangles (samples) to see if they have the right color?
> >
> >
> >
> 
> If you're getting too much magenta: that implies you're not 
building,
> creating, or using the profiles properly.
> 
> Usually, a printer will have a green cast when it's running
> uncalibrated. The profile will compensate for this by adjusting
> the image more towards magenta when you make the print. The two
> effects (uncalibrated green cast from the printer, plus magenta
> cast coming from the profile to offset this) cancel each other out.
> 
> Magenta cast in your PRINTS through the profile implies that when
> you're printing, your driver is not running with color management
> turned off. So you get the profile adjustment, without the
> uncalibrated driver to balance it off, and the result is a magenta
> print.
> 
> 
> 
> David Miller
> Senior Software Developer, Digital Color Solutions
> Datacolor
>