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Digital BW, The Print

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NanoChrome QTR Printing

2006-01-21 by Shilesh Jani

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

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