Digital BW, The Print

Darin, Error Diffusion is in the same box as the media settings. You
should have error diffusion or half tone dithering to choose from. This
isn't one of the real important settings though. Did you say you were on
a 1280 or 1160? Can't keep track of all the various people. If a 1280, I
don't think there is an error diffusion choice, any more.

> First, a few questions to Jerry:

> I'm using the Adobe 1998 working space (tried others but no effect),
> Heavyweight Matte media setting (also trying others with no effect on
> the problem), file in RGB mode (16 bit sseems a tad better
> perhaps--hard to tell), and "same as source" set.

So far, so good.
 
> However, I have not been able to find anywhere to set error diffusion.
> My print dialog box doesn't seem to have anything related to
> halftoning, nor could I find it anywhere else. Where should I look?

On the page where you set your media settings.
> 
> Also, you ask if I'm using all the inks...if this is a setting, then I
> have no idea where to find it--I didn't realize you could select
> anything but to use all the inks! Maybe you are on to something here.

I meant are you printing with "Color" inks, or just the Black ink? You
should be printing with the color inks, not black only.  There's a radio
button for black and for color.

> Second, a few observations:
> 
> The posterization occurs, by my observation, BEFORE printing. That is,
> you can see it on the screen. In my sample image it is a green band
> suddenly turning orange with a clear, sharp demarcation between the
> two areas where in the grayscale the area shifts from medium gray to
> white smoothly. This problem is worse (both with Paul and Tyler's
> curves) with the warmer curves.

This is normal to see wild colors when using Paul's curves, but there
should NOT be 
any BANDING, just posterization between a couple colors. Orangish for
cool, reddish for cold, green for warm.

> I'm using Tyler's neutral curve now and I've got it 95% eliminated,
> but my prints from the standard Epson inks of the same scan are
> flawless, with rich blacks.

I've not heard of Tyler's curves, do you mean Tyler Boley?

Do you have the new 26 year Epson inks? I used them once before I went
to the Hextone set, and they are great! Didn't fade after 2 months in a
south window, either! (1280 Printer).

Jerry

Can hardly wait for the new 2200 printer, IF the tanks are reasonably
large. Or IF you can get a CIS for it, in case they aren't.