Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "otc_friend" <otc_friend@...> wrote:
>
> There is a difference between homebrew and multi-million dollar
business.
> 
> Epson is able to *print*a  20-layer pcb with their inkjet technology.
> If you spent enough money, they print it where you want.
> 
> If you print on aluminium, you probably actual print on the
micrometer thick aluminiumoxide layer.
> 

More likely, the box is painted white with some conventional method,
then inkjet printed. But you barely need 300dpi to print something
like that.

I would not be surprised if they use HP thermal inkjet print heads.