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Digital BW, The Print

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Message

Re: PiezoBW versus piezoBW

2001-09-19 by TerryR

Austin,

Our little string started with your statment as follows:

--- In DigitalBlackandWhiteThePrint@y..., "Austin Franklin" 
<darkroom@i...> wrote:
> It shouldn't be dithering pure black...but...it could be the dot 
density.
> "supposedly" the Piezo driver prints in higher resolution than the 
Epson
> driver.  Also, the printers (don't know which one you are talking 
about, but
> even the 3000) have variable droplet sizes...and that could have 
something
> to do with it too.
> 
> There are many ways to control these printers...and get different 
results.

Based on your statement above, and the fact that most on this list 
print at the maximum dpi setting for their given printer (with the 
exception of maybe the 1280), I took it as you were implying that the 
3000 would have variable droplets available while printing. I think 
that I just didn't understand what you were saying in context to your 
statement (most others probably didn't either). I think we agree that 
the 3000 does not have the variable droplet technology, and the 
droplet size will be predetermined by the dpi setting prior to 
printing. 

My question based on your statement below would be this: 

If you can't vary the droplet size while printing and if the droplet 
is already at its smallest size at the highest dpi setting determined 
prior to starting the print why would you want to change the dot 
size? Was the code you were writing an attempt to emulate the 
variable droplet technology of the newer printers? If so, did you get 
it to work? Or where you just trying to create the "PiezoIcefield?<g>

Terry


--- In DigitalBlackandWhiteThePrint@y..., "Austin Franklin" 
<darkroom@i...> wrote:
> 
> > Austin,
> >
> > Actually it doesn't.
> >
> > What you are referring to is presetting the dot size with your dpi
> > selection from the Epson driver.
> 
> Yes, I know EXACTLY what it does...I've written QUITE a bit of code 
for this
> printer, including an entire set of directly driven head alignment
> utilities...which required very intimate knowledge of exactly how 
the
> printer operates.
> 
> My point was you CAN vary the dot size of the 3000 (the command is 
called
> "Dot Size Command" for that reason ;-), and yes, it has to be 
preset, and
> yes, it is not the same as the "variable droplet technology", all 
of which
> do not mean you can't very the dot size...the point is, you can!

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