Re: [Gimp-print-devel] Another ink question

[Dave H. <da...@mi...>]

Robert L Krawitz wrote:
> 
>    Date: Tue, 09 May 2000 11:12:23 +0100
>    From: Dave Hill <da...@mi...>
> 
>    Apparently, the black and colour cartridges used simultaneously
>    in the Deskjet 550C and 560C have incompatible chemical makeups,
>    and they should not be mixed at a given print point.
> 
>    On the other hand, the newer ones used in the DJ600 series can
>    be mixed with no ill effects.
> 
>    How would you set the dither knobs to differentiate between
>    these two cases. I think it has to do with "set_black_upper()",
>    and what is the default action.
> 
> The way to handle that is to not pass a black bit vector (pass a NULL)
> if you don't want black ink.  I haven't tested this in a while, but
> that's how it's supposed to work.
> 

Sorry, that's not what I meant. That one works fine for printing in
CMY only.

I meant that you couldn't lay down black and coloured ink on
the same spot with the 500 series, but you can on the 600 series.
But looking at the code, I see that you never put down coloured
ink if black has been put down (using the "dontprint" argument to
print_color()).

Dave


-- 
Dave Hill, Kempston, Bedford UK		da...@mi...
				davehill at users.sourceforge.net
Sicth munce ago, I cutn't evun spel enjuneer, and now I are one!