Re: injet printer mechanism

> > What sort of resolution do the head mechanisms on injet printers have?
> > If the dot pitch is 1200 dpi, does that mean that the head moves in that
> > fine a step?
> >
> No. It moves flying ink with electrostatic field.
>

There are many different inkjet technologies. Ultra high-speed
continuos jet printheads are always on and use electrostatic
deflection to aim the droplets onto the paper or into a recycling
catch tube when nothing is to be printed. These are often used to
print on cartons, address junk mail, etc.

Drop on demand jets use a tiny resistor to boil off the ink and fire
it at the page - they are typically fied aim but often built in arrays
of many jets (like 40 or more). This is more the kind of thing you
find in a desktop inkjet printer.

Of course there are many other related technologies as well.

Chris

--
Christopher C. Stratton, stratton@...
Instrument Maker, Horn Player & Engineer
30 Griswold Street, Cambridge, MA 02138
http://www.mdc.net/~stratton
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