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Digital BW, The Print

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Re: [Digital BW] Re: How Many Shades of Gray - K7 vs K3?

2011-03-23 by Ernst Dinkla

On 03/23/2011 04:35 AM, shileshjani wrote:

> But when I look up (mis)information online, the posts are replete with the idea that inkjet prints (especially OEM solutions) cannot print even the 256 shades of 8 bit files. Really curious. Is what you just walked me through not widely known, or appreciated?
>
> Shilesh


Shadow detail is often not so nicely divided in separate strokes that 
can be measured with the aperture of a spectrometer. It is the spot 
where high loads of inks next to one another still should be contained 
within their pixel/cell boundaries to create that detail. And bleeding 
of high density inks shifts tone in an area more than bleeding of low 
density inks, there is more density buffered in a black dot than in an 
LLK dot. If shades get lost it is there. On my greyscale steps I added 
high contrast lines but also a boundary with a low tone difference.

An unbalanced quad inkset or an unevenly spread inkload in partioning 
can create an unstable image quality. It may still print all the shades 
but they may not represent the same greyscale value today or tomorrow on 
different sheets of the same paper.


-- 
Met vriendelijke groeten,   Ernst

Try: http://tech.groups.yahoo.com/group/Wide_Inkjet_Printers/

|      Dinkla Grafische Techniek      |
|         www.pigment-print.com        |
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