[Gimp-print-devel] Epson R2880 and R2400

[Robert K. <rl...@al...>]

I'm working on the R2880.  Seems to be a very nice printer.

Based on what I'm seeing, I think the R2400 (and possibly also the
2100/2200) is probably badly mistuned.  It likely isn't printing dark
enough, and it also looks like the best gray is generated with no
composite component at all -- just black, light black, and light light
black.  It's actually harder to spot drops (using a 5x loupe) with
only the grayscale inks than with composite.

The question I have -- and I'd like to get people's opinions on it --
is whether we go back and retune it, which will break any existing
profiles.  There are a few possible options:

1) If we do another 5.2 release (and I'd like to), we update the
   tuning at that time.

2) We update the tuning at the next minor release (5.3), whenever that
   is.

3) We don't update the tuning at all.

4) We add another printer definition for the retuned R2400.

I'm not particularly enamored of either (3) or (4).  (3) permanently
locks us into inferior quality, while (4) just creates confusion.
What I don't know is how disruptive it will be to change tunings
during a stable release series, even if it turns out that the current
settings are grossly inferior and simply can't print dark enough.
Thoughts?

BTW, all of this happens just through changing the XML files -- no
cource code changes, and I don't think that it will even be reflected
in the PPD files.