Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "Austin Franklin" 
<darkroom@i...> wrote:
> > >No where in the printer command language could I find a 
way to get this
> > >printer to do 2160DPI, which, I believe, Piezo claims it works
> > at.  I asked
> > >in the Piezo group about this, and never got a satisfactory 
explanation.
> > >Now, whether there may be some "secret commands" or 
something, I don't
> > >know,
> > >but I am reasonably familiar with the mechanics of this 
printer, I don't
> > >believe it can do 2160...  It's a claim that has never sat well 
with me.
> >
> > This is connected with Paul's inability to find increased 
resolution on a
> > line test; a line test is black and white only, while the
> > advantages in the
> > Piezo driver are based on using all the color heads to print
> > shades of gray.
> > This allows more grays, more smoothness, more info, but 
not more
> > black and
> > white line pairs. As the Epson printers print smaller and 
smaller
> > dots, this
> > advantage shows less and less, which is why the 3000 and 
7000 are the
> > ultimate models for taking advantage of the Peizo drivers.
> 
> Hi CD,
> 
> I do not see how they are connected.  The print head 
mechanics and carriage
> mechanics are what controls this...and mechanically, I do not 
find a way to
> do 2160...no matter what inks you use.
> 
> Why do you believe the are connected?
> 
> Regards,
> 
> Austin

I entirely agree that there's no way for the Piezo driver to make 
the printer move in a way that it wasn't designed to do.
I've always viewed the 2160dpi number as martketing hype
that loosely translates to "the piezo driver because of the fact
that there are 4 gray inks prints a grayscale image as if the 
printer were capable of the higher 2160dpi"  

Now that epson has printers printing at 2880x720 and we can
also take advantage of multiple grays using the epson driver
most of the Piezo vs Epson Driver comparisons are pretty
hard to differentiate.

Roy