Re: OS X ColorSync Utility
Re: OS X ColorSync Utility
- Subject: Re: OS X ColorSync Utility
- From: Dave Camp <email@hidden>
- Date: Tue, 09 Jul 2002 16:33:03 -0700
on 7/9/02 3:43 PM, Chris Murphy at email@hidden wrote:
>
> You cannot avoid ColorSync when printing on OS X. The source document will
>
> eventually be converted to an output space before being handed to the print
>
> driver. Neither the print driver nor the application have a say in this. The
>
> document is color managed all the way.
>
>
That can't be true all of the time. First, from a theoretical standpoint
>
it would make it impossible to print profile targets properly to any
>
printer if everything were always being color managed.
I've asked the engineering mgr of the printing group about this on several
occasions (seemed like an obvious problem to me too), and he confirms there
is no way to print a raw target for the purpose of creating a profile. There
is no pass-through mode.
>
Second, from the experience of actually printing targets with no color
>
adjustment on a couple of Epson printers and one Lexmark printer - I'm
>
able to get the same results as I do in Mac OS 9 with the same settings.
>
So OS X definitely has some means of not doing color management.
I can confirm that the "ColorSync" control on one of those printer modules
does absolutely nothing at all. There is no API available to disable or
otherwise change the ColorSync settings for printing. Those controls can
only change the settings of the internal vendor specific color conversion
algorithms.
When the guy that runs the printing group at Apple tells me that is the way
the printing architecture works (on multiple occasions, from direct
questions), and I confirm it while writing inkjet printer modules, I tend to
believe it's true... :-)
Dave
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