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Digital BW, The Print

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RE: [Digital BW] Do inkjets dither or not?

2002-08-02 by Austin Franklin

Hi Herb,

> Anthony -- While your "world's cheapest inkjet printer" may have only
> three possible pixel colors, there are lots of color inkjets that
> have only four possible pixel colors (CMYK) and lots more that have
> only six colors (like many of our Epsons).
>
> My understanding is that inkjets do indeed dither to create colors,
> but that the pixels are so small

Dots...not pixels...printers don't print pixels, and there is really no
relationship between the pixels and the dots, that you will be able to see
after a (decent) dither.

> that for all practical purposes we
> can consider them to be "continuous tone" printers

The Piezo system is technically considered "continuous tone", even according
to Jon Cone, who has been in this very business for many many years.  The
accepted term "continuous tone" really means gives the "appearance" of
continuous tone...and I would also add, uses multiple inks, not just black.

So yes, absolutely inkjet printers DO dither, absolutely, unquestionably.
It's like asking if inkjet printers use ink...  They do not use cows though,
despite misinformation to the contrary ;-)

Austin

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