Homebrew PCBs

> > Steve wrote:
> > Oh. I guess all desktop inkjets now are Drop
> > On Demand. Maybe not all wide format printers
> > are DOD.

> ST wrote:
> I don't know what that means really, but i've
> heard it mentioned with printers and it seemed
> fitting.

Drop On Demand is the type of modern injket
printer that can fire drops of ink at any time
it likes.  They mainly use thermal inkjet (Canon,
HP ect) which has a little chamber with a heater
in it that boils a tiny amount of ink.  Epson
use a pezio element in there little chamber that
squeezes the ink out without heating it.

The electronics can fire (heat or squeeze) out
a drop when it is needed/demanded - hence drop
on demand.

In archaic inkjet printers the print head would
fire out a constant stream of drops.  It would
then use an electrostatic charge to either direct
these drops out to the paper or back into an
ink collection system for re-use.  The print
heads did not have any tiny tiny little elements
in them - they where just a nozzel being fed by
a pump.

All the AO size inkjets I have ever played with
have been drop on demand.  But then I have a
limited view of them as most of the ones I have
played with have all been HP.

Perhapse some of the ones that use exotic inks
still use drop deflection techonolgy. (and
therefore I had no right calling it archaic :)


and not for the "of on a tangent" part.

We don't realy know if the DoD the first poster
mentioned wasn't "Drink or Die" the software
piracy group that was involved with the 
release of DeCSS and whos members are all
being extradited to california to face the MPAA.

Maybe our new lurker wont be with us that long :D