Digital BW, The Print

OK Terry, this is getting too esoteric for me! Or maybe not...

But I can't think how you could control voltage without effecting the dot
size... or did you mean obviously, any Quad driver has the choice of four
densities rather than the one?

Whichever way, this reminded me of something I read recently in an Epson
Stylus pro brochure (covering the whole range)... on Variable Droplet Size
Technology: one image showed a (presumably simulated) 'signal' being applied
to the nozzle. One frequency pattern produced a 5pl drop... a different one
11pl... and a third one 23pl. The third one was actually shown as being the
same signal for the 5pl drop, followed by the same signal for the 11pl drop
size... the image in this case literally showed a tiny drop of ink followed
by a larger one.

It can't be quite that simple... as after all 11pl + 5pl does not equal
23pl!

But it made me think... what would happen if you added one 5pl drop of say
25% ink exactly over a same 5pl drop of 25% ink. Would that enable 'mixing'
of ink and somehow change the ink to a xx% value, without having increased
the dot size? I think we may have covered this before with over-printing
(did not work, as I think Todd??? tested it) - but this would potentially be
mixing ink rather than overlaying it. I don't think you could do it with two
_different_ tone inks.

Nij




> -----Original Message-----
> From: TerryR [mailto:terryr1028@...]
>
> Nij,
>
> I agree 100% with what you said above. What I was trying to say was
> the the density of the ink is being controlled through the voltages
> the driver is applying to the head, IOW it can actually vary the ink
> density for each droplet, kinda like the variable droplet technology
> of the Epson driver.
>
> Terry