Datacolor User to User Support Group.

Hello,

 I bought a Spyder3Print to make some custom profiles for our HP
DesignJets.
 Used the 729 patch and extented greys targets.

 The profiles make saturated blues to render as quite purplish
 and inspecting the generated ICC's on ColorSync Utility show that the
gamut is quite small.

 Additionally, only after doing lengthy manual adjustments I'm able to
produce
 truly neutral greys with overall pleasing colors.

 Before manual tweaking the neutral greys and colors has considerable
 cast in the a* axis (green <--> red-magenta.)
 The color of the cast varies with the media; Glossy Photo has ugly
green cast, Matte Canvas has reddish-purple cast.



 I have also a XRite spectro at my disposal, and none of the
 profiles generated with that piece of hardware/software caused
 such weird color casts. Also XRite generated ICC's
 show considerably larger and smoother gamut.


 I like the versatility of Spyder3Print spectro and the controls/fine
 tuning the Spyder3print software allows. Would like to continue using it.



 I have:
 - Always calibrated the spectro using the tile in the holder
 - D65 complying working space for visual inspection/comparison
 - Visually inspected the printed targets for each media (the blues
are in there)
 - Measured A2-size targets for each media two times - in "Measured" mode
 - Carefully looked for any inconsistencies in the measurements




 Anybody gotta clue why I'm getting such erroneous profiles?

 And is it typical that even after 729 patch + grey patch targets the
 neutral greys -- and skintones for example -- have quite considerable
colour cast?

 Am I missing something obvious?


- Richard