Digital BW, The Print

Carl,

Yup, the K ink is cold. That dooes not bother me in QTR printing.

When you printed BO with these inks on your 4000, what is your 
opinion of the dot structure (dither)? Is it as smooth as the OEM PK? 
I belive the 4000 has one of the smoothest structure, much better in 
BO than 2200, 1280, etc. I have a suspicion that is why the Dmax is 
lower on the 4000. The R220 is rather a coarse machine for BO and 
also for QTR with the inkset up I have used.

I am not quite ready to put these inks (or even just the K) on my 
4000. When you loaded the K on your 4000, did you find issues with 
clogs due to interactions with the PiezoTone inks?

Regards.

Shilesh

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Carl Schofield 
<scho@m...> wrote:
>
> Shilesh,
> 
> You probably noticed that the K ink is also an icy cold blue.  I  
> tried using it for BO printing in the PK slot of my 4000 (other 
slots  
> are using piezotones right now) and got some very nice looking BO  
> prints on Hahnemule Photo Rag Satin (dmax 1.93) with no bronzing 
or  
> GD, but the icy blue hue is just too much for me.  If this cold 
hue  
> of the black inks can be effectively neutralized in QTR then I may  
> switch over to the full inkset.
> 
> Carl
> 
> On Jan 21, 2006, at 1:31 AM, Shilesh Jani wrote:
> 
> > Hello All,
> >
> > This is not about whether these inks are dye, pigment, infused, or
> > not. I am intersted in printing b/w on rag and sometimes RC papers
> > using a single color inkset. I currently use a 4000 with OEM UC 
inks
> > for b/w (90%) and color (10%) prints. My reasons for exploring
> > NanoChromes (1) I just like to play with inks, (2) get better 
Dmax on
> > matte papers, and (3) be rid of the pesky gloss 
differential/bronzing
> > on RC papers.
> >
> > QTR is an awesome tool - thank you Roy Harrington!
> >
> > The challenge posed by the NanoChrome inks is the relatively
> > cool/blue tone of the grey (LK) ink. My experiments are conducted 
on
> > an R220 printer. I filled the LK ink in the redundant C position.
> >
> > In QTR ink configuration, I have been able to neutralize to a 
great
> > extent this problem. For EPSG paper the settings that work are:
> > Default limit = 80%, NO K boost
> > LK Density = 30
> > Y Copy Curve from LK, limit = 6%
> > LC Copy Curve from LK, limit = 2%
> > LM Copy Curve from LK, limit = 20%
> >
> > After linerarization, the prints on EPSG, EPG, and Kirkland papers
> > are, well, stunning! My prefered paper is EPSG. Dmax is in the 2.4
> > range.
> >
> > The fade resistance of these remain unknown, so I am waiting a bit
> > more before loading these inks onto the 4000.
> >
> > Regards.
> >
> > Shilesh
>