Digital BW, The Print

When I bought the 1200, the buzz was all about the DX3 technology and
3 drop sizes with the 1200 quoted as 6 picoliter. This was in
comparision to the 1270 that had just been brought out with, I
believe, the 4 pico figure. I purchased the 1200 specifically because
it was chipless and I wanted bulk pigment inks. It was some time
before carts and chip resetters were available for the new machines.
At the same time I recall seeing comments that Epson tested new
technology on desktops before carrying it over to new pro models. I've
seen several comments on the 7000/7500 referring to either 11 or 7
pico dots. Never seen anything official though either.

Perhaps Roy has some info in this direction as he has detailed
knowledge of the machines, apparently via manuals for developers.

Regards
Duane
 


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
<paul.roark@...> wrote:
>
> Speaking of dot size for the older machines, I've never found an
official
> rating for the 7500 and its siblings.  Inkjetart.com has a couple of
> statements regarding this generation of printer:
> 
> "[T]he 7500 is a static 8 picoliter droplet size (according to one
Epson rep
> we spoke to at the PMA show)."
> http://www.inkjetart.com/news/archive/IJN_02-20-01.html
> 
> On the other hand they also have an old comparison that mentions a
different
> measurement: "The Epson Pro 5000 printer and the new Epson Pro 9000
> wide-format printer are a different "breed" ... These two printers have
> Epson's Micro Piezo Dual Density Droplet (DX3) Print Technology
which offers
> precise 11-nanogram dot size for remarkably small, clean, sharp dot
> placement, and achieving remarkable photographic clarity."
> http://www.inkjetart.com/news/dot_comp.html
> 
> I'm not sure how the 2 different measures compare.  I'd guess that the
> specific gravity of the ink should be used to equate the 2.  If so, that
> would put the ink at about 1.38.  I've never measured it precisely,
but I
> was of the impression it's about 1.2.
> 
> The name of the head technology suggests it might support a variable
dot,
> but I've never heard that any rip actually accomplishes this.
> 
> Paul
> www.PaulRoark.com 
> 
> 
> 
> 
>