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Digital BW, The Print

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K7 coverage was Re: 2400 B&W And Coloration

2005-08-06 by Clayton Jones

Tyler,

>No, we're talking about the same thing, and it's an interesting 
>issue to me...The more partitions and inks you add, the 
>higher the dot count everywhere, in all parts of the scale.
>So, if we allow the probablity of coverage or the lack of it being 
>responsible for the luminousity you prefer in BO prints, then K7, 
>with more coverage than ever before, may just be the least 
>interesting development in mono inkjet printing for you yet!
>I think it will be very interesting to hear what you think of how 
>they look.

Ok, we are talking the same language.  Having examined lots of prints
via exchanges, from just about every system in use, it's obvious that
the coverage is what's responsible for it (and it did cross my mind
when I read about K7).  However, I am interested in K7 for another
reason.

Experiments with the QTR/2K approach has shown that we can have
smoothness and luminance.  It has far better smoothness than BO,
although not quite as smooth as UT7.  It still has good luminance,
although not quite as much as BO (it's full coverage extends further
into the midtones from the dark end, so lower midtones lose some, but
upper midtones and highlights preserve it).  It's an excellent
compromise.  Steve Kar. and Carl S. have produced some outstanding 2K
work.

The big problem with 2K is the color inks required to cool off the LK
to match Eboni (those dastardly colors again!).  You can get a formula
that looks great on one paper but not on another.  That's why I was
trying to dilute Eboni.  What we need is a K/LK pair with the same
tone that will react equally across the different papers.  So my
thinking is that maybe the K7 set will provide that...I will be
watching the reports carefully.

Regards,
Clayton


Info on black and white digital printing at    
http://www.cjcom.net/digiprnarts.htm

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