Digital BW, The Print

----- Original Message ----- 
From: "Roy Harrington" <roy@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Friday, June 20, 2003 9:41 AM
Subject: Re: [Digital BW] Off-center prints on Epson 1200


> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Ernst
> Dinkla" <E.Dinkla@c...> wrote:
> >
> >   I'm also going to be sending Clayton a print
> > > from my 7500 (the only one in the exchange I think) that I
> > > made with my QuadToneRIP and a custom created 5 grays
> > > ink set.  It'll be interesting to see how a non-variable
> > dotsize
> > > printer stands up to all the others.
> > >
> > > Roy
> >
> > Roy,
> >
> > As far as I know the 7500 (and 9000,9500,7000) should have
> two
> > droplet sizes at 720 dpi but one on the 1440 dpi setting.
> >
> > Ernst
>
> Ernst,
>
> I'm not completely sure but it seems to me that 1440x720
> and 720x720 have the same single droplet size.
> 720x360 has a larger droplet size but you only get the
> larger size while in that resolution.
>
> So for any one print all the droplets are the same size.
>
> I've deciphered this from looking at tables that control the
> print driver.  So if you have any more definitive info I'd be
> interested to know.  But it may be a moot point since I imagine
> 1440x740 is the most likely resolution for photos anyway.
>
> Roy

Roy,

It is an old tale meanwhile but it was raked up by John
Nollendorfs sometime ago when he wrote me that the 720x720 dpi
setting uses two droplet sizes in the Epson driver. I remember
that Jon Cone asked the early 9000 users on an informal 9000
mailing list (before the 9000/wide format list existed) what they
knew about variable droplet sizes possible for the 9000 models,
that was before Piezography became a name and an application.
Will ask John what it is precisely.

Ernst