Digital BW, The Print

Shilesh,

Dither still looks good on most papers.  Epson Premium Semimatte gave  
me some problems with bad bronzing.  Tried using QTR for that paper  
so I could reduce ink limit, but had to go all the way down to limit  
30 to get rid of bronzing and then took a big dmax hit because of the  
low limit.  Dither seemed coarser on semimatte also (this is a very  
smooth surface so it shows imperfections more readily).  I've only  
had the Nanochrome K loaded for a couple of days but no clogging  
problems so far.

Carl

On Jan 21, 2006, at 1:56 PM, Shilesh Jani wrote:

> 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