[Gimp-print-devel] Re: Print stuff

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

   Date: Fri, 21 Jan 2000 08:40:02 +0100
   From: Andy Thaller <th...@ph...>

   Robert L Krawitz wrote:

   > It's really the constants that will probably be wrong for you.  The
   > dithering routines themselves will probably work, unless Canon
   > supports some ridiculous number of levels (dot sizes) of each color.

   Not that I'd know.

You might need to hunt around for documentation.  Canon's making
claims that they have 33 some odd gradations of color, which might
mean 33 different dot sizes, or it might not.

   > The MODEL_6COLOR actually refers to CcMmYK (light cyan and magenta).
   > The routine, however, should work for CcMmYy or CcMmYyK just fine.

   Ah yes, silly me - don't know where I've got that CcMmYy
   from. Meanwhile I've had another look at the documentation and it
   says it's really CcMmYK.

CcMmYy isn't necessarily a silly way to do things...

   Yesterday night I've got my first test-print @ 360x360 dpi and it
   looked quite ok - I'll have to play with the gamma and
   horizontal/vertical offsets but the basics work. I'll let you know
   when there's more.

Great!

   Regarding the 6-color mode: since there are 3 possible modes to
   print in (B&W / CMYK / CcMmYK) it would be good to have a way to
   choose between them.  The canon driver for windows has a pull down
   list for this purpose, but radiobuttons as in the print-plugin seem
   ok to me - there'd just have to be a way to check which mode a
   printer supports. What do you think?

There's already a choice between BW and color.  For now, until we redo
the whole dialog thing, what I'd suggest is having two different
printers, Canon Foobar 3000 (4-color) and Canon Foobar 3000 (Photo) or
some such.

This is obviously not the way we want to go, but it's a way to get
things working quickly.

-- 
Robert Krawitz <rl...@al...>      http://www.tiac.net/users/rlk/

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