Digital BW, The Print

Ernst,

>not so long ago I have seen a message that indicated the
>9600/7600 heads are "heated". I can't find that message anymore
>but I wonder if this is related to what you are writing and the
>problems that I have with Eboni Black in 9000s.

Actually, I've had no problems with my 7500 and Eboni.

The potential separation issue I'd raised is in some test tubes where Eboni
is diluted with standard MIS base.  Whether there is any base available base
that can reliably hold Eboni in suspension is an open question.  Alex found
consistent and obvious precipitation.  So far my tests are inconclusive
(after less then 24 hours, however -- too soon).  If the separation is not
consistent, there may be other factors.

(There are accelerated separation testing procedures that MIS uses that may
be proprietary.  With it's reputation at stake, MIS does not just mix and
sell what I come up with.  There are a number of tests MIS runs before
sticking its neck out.)

At any rate, when I publish an experimental ink formula, it has clearly
worked for me, but there may be open questions/problems that more testing
will reveal.

Paul
http://www.PaulRoark.com
______________________________

----- Original Message -----
From: "Paul Roark" <paul.roark@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Tuesday, September 02, 2003 7:21 AM
Subject: RE: [Digital BW] Re: Latest variable-tone inkset


> I had worked up an Eboni-based, Piezo-compatible inkset that I
thought would
> be aimed at the older printers.  However, some tests indicate
Eboni may not
> be the way to go.  I'll have more on this soon.  (These new
carbon pigs like
> to separate.  PiezoTone selenium is having these problems also,
apparently.
> The complexity of the 2200 interior also hints at the issues.)
>
> So, right now, I'm not sure there is a good replacement for
FS-N.
>
> Paul
> http://www.PaulRoark.com