Datacolor User to User Support Group.

On Feb 2, 2009, at 2:40 PM, John Broski wrote:

> Thanks for the quick answer, CD!  But there seems to be something  
> else going on.  Here's what I did:
>
> 1. Printed the TIFF targets (225 patch and grayscale) through  
> Photoshop, using the Export Module.  I made sure the TIFFs had no  
> imbedded profile.  In the module, Output Profile was set to "None  
> (No Color Correction)".  All other color settings in module were set  
> to default (zero) positions.  For good measure, I opened the Print  
> With Preview box in Photoshop and set Color Handling to "No Color  
> Management" before opening the module.  (Don't know if that matters.)
>
> 2. Read the patches and built profile in Spyderprint 3 as usual.
>
> 3. Printed thru the module, choosing my new profile as the Output  
> Profile.  No other changes to any setting in module.
>
> Result: Just like before!  (Colors pale and lifeless, especially  
> purples and yellows.)  The profile made thru the module may well be  
> a tiny bit different from the one made thru the driver, but it's not  
> obvious.  The result is still obviously different from the print  
> made thru the driver, though, where colors are fine.
>
> Any other ideas?  Is there perhaps a hidden, low-level profile being  
> associated with the Canon 5100 somewhere else?  Should I delete the  
> printer's "associated profiles" using Windows?  I hear there's an  
> issue with the Canon module not liking Version 4 ICC profiles  
> (though it doesn't sound the same... that crashes the module).  Are  
> the Spyderprint 3 profiles Version 4 or 2?

Here's one more thing to try. Assign (don't convert! just assign) the  
GenericRGB profile to the targets in Photoshop before printing using  
the assign profile menu command. Compare them to your previous  
targets, and see if they are the same. Then, take the profile you  
create, convert in Photoshop from your workingspace, to your printer  
profile using the convert to profile menu command. I'd suggest  
saturation intent and no BPC, but whatever. Then, once its converted  
and ready for printing, assign (again. like with the target, don't  
convert!) the GenericRGB profile. This bit with the generic profile is  
to make sure that some combination of the OS, the driver, and the  
Photoshop version aren't triggering an unintended conversion to  
Generic RGB; if you SAY its already in GenericRGB, then that will save  
you from unintended color conversions, even if this bug is triggered.  
If all this works, then printing again, without the Assign GenericRGB  
step at the end, in case its the conversion in Photoshop in advance of  
printing thats doing the trick for you, not the assign GenericRGB step.

C. David Tobie
Global Product Technology Manager
Digital Imaging & Home Theater
CDTobie@...