Digital BW, The Print

Is Ole perhaps printing on HPR SATIN?

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Steve Kale 
<stevekale@b...> wrote:
>
> You must have different ink than what I have.  I've posted here 
measurements
> of both the K and LK ink and they are far from neutral - they're 
very cold,
> about as cold as I would ever go cooling a warm carbon ink set with 
LM and
> LC.  You're getting an L* of 3.7?  I have measured scales of ink 
load and
> never found density to exceed 2.0.  The L* 8.4 I measured below is 
the best
> I've seen but it's not workable.  I'm surprised you are getting such
> different results.  IJC/OPM and QTR use the same driver at their 
core and I
> would not have thought there'd be that much difference simply from 
the 7600
> vs the 2100 - at least not at dMax.
> 
> I think I have a reasonably close to neutral QTR curve now.  It 
required a
> toner curve for adding LM and a different one for adding Y.  A 
painful
> exercise.  I'll post the results when I'm finished.
> 
> These inks will be problematic for anyone looking to use them 
conventionally
> with the Epson driver (ie for colour).  The ink limits in there are 
going to
> cause problems for these inks.  My GG2.2 step wedge on HPR has now 
had a
> couple of days of drying.  Here are the 85, 90, 95 and 100 steps:
> 
> 14.3 1.1 0.6
> 9.9 1.8 0.3
> 8.4 1.7 -0.5
> 9.6 0.8 -0.8
> 
> Note the inversion that occurs due to excess ink limits.  I no 
longer have
> the same printout on EAM but the results will have been much 
worse.  If
> these inks pass the longevity test then a RIP will definitely need 
to be
> considered.  These are cheap for B&W but less so for colour.
> 
> 
> > From: Ole Christian <piezoo@m...>
> > Reply-To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Date: Mon, 16 Jan 2006 00:12:08 +0100
> > To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Subject: [Digital BW] NANOCHROME BO
> > 
> > Greetings, I have been fiddling with the Nanochrome for BW prints.
> > Most of my test have been done using the Bowhaus IJC/OPM software 
on
> > an Epson 9600. I find that the neutrality that both the 
Black/Light
> > Black have in themselves a real benefit. DMAX is also very good. 
On
> > PhotoRag 308 I have measured DMAX very close to 2.4. Nothing I 
have
> > printed with sofar have matched this black level. I am very 
impressed
> > with these inks.
> > 
> > -ole/norway
>