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Digital BW, The Print

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Re: [Digital BW] Suggestion for K7 homebrew needed

2007-08-08 by John Wilton

Hi Paul, the recipe you suggested (K + 3 carbon dilutions, lt c and
lite m) worked wonderfully well, making rich, smooth, dither-free
prints. However, my idea of saving money by flushing out only the
Mediastreet color CMY and leaving the MK, c and m proved to be a
mistake. Flinging, dripping c and/or m on the edges of large prints,
even when cm were not used. Drops of c and/or m forming on the lower
edge of the printhead. After a week or two (and many square feet and
some torn-out hair) waiting to see if it was going to settle down, I
tried some prints with only the Mediastreet color cm channels being
used...no drips. Explanation has to be that some kind of allergic
reaction was causing the Mediastreet color to ooze out in the presence
of MIS carbon being printed. So I purged the Mediastreet ink, and now
have Eboni in K, and MIS flush fluid in cm, and it is printing fine.

Moving on. I really like the carbon tone, and could certainly live
with it as the only tone from this printer. (I also have a 4000-UC and
2200-UT7; and for many decades was perfectly happy with being limited
to 8x10 RC paper in my kitchen darkroom). 

My options seem to be: leave as is; or replace the 2 channels now with
flush fluid with two more dilutions of carbon; or with one more carbon
dilution and a cool toner.

What would you suggest for 2 more carbon dilutions, or one more carbon
plus cool toner? With an ink limit of 100, I now have densities: 
MK 1.60
UT3D-C (dark carbon) 1.31
UT3D-M 0.90
LLLK (LLK:base 1:2) 0.38

(The LLLK is neutral, a little cooler than the dark and light carbons.)

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