[Openicc] Print Color Pipeline

[Alastair M. Robinson]

Hi,

On 25/01/11 07:28, edmund ronald wrote:

> I believe these are separation issues?  Do they actually affect *local
> printing* which is what CUPS is all about? I mean, if you want a
> special type of inkjet rendering you invoke a profile, but then you
> already need to know a lot about the printer you are using, and if you
> want to print on press you spool the file out from the application, so
> it doesn't go through CUPS anyway?

Well, having control over overprint and knockout can be valuable on 
colour laser printers - I've seen a number of machines where the 
registration between the four colours gets progressively worse as the 
stock thickness increases, so being able to print, for example, a 
pale-blue background *under* some solid black text prevents white 
fringes showing around the text.

Do we want the print system to be able to handle this at all, though, or 
should it be handled application-side?  (In which case for these 
specialist print jobs the application will produce pre-targetted data 
and the data must reach the printer unmolested.)

All the best
--
Alastair M. Robinson