Homebrew PCBs

> I've never bother to have a look at the innards of one. I assume the
technology is
> similar to the LED scanners you can get (Canon LIDE etc); LED chips are
pretty
> small so you can cram a few in there, but 1200 of them per inch is rather
> impressive, especially across 8-11 inches or so. Staggered maybe? Driving
one of
> those would be an 'interesting' challenge, at 8"
> that's 10,000 LEDs (triple for colour?)


Actually, just looking at the spec for the Oki C711 I see 1200 x 600 DPI, so
they're pulling the old scanner trick.  The LED portion is only 600 DPI, so
'only' 5,000 LEDs across.

Tony