Homebrew PCBs

On Tue, 18 Apr 2006 at 23:54, Robert Hedan top-posted,
(making it difficult to quote, trim & reply in logical order):
>On avril 18 2006 at 23:48  De la part de Steve
> > It shipped with those cartridges installed, they probably
> > drained into the park pads. Pressure changes during shipping
> > tend to force the ink out.
> >
> > However, that doesn't explain the chips reporting empty.
> >
> > Steve Greenfield
>
>No, that's the strange part.  Black, red and yellow were replacement
>cartridges she bought at Staples; those 3 don't work any more.  Blue is
>stock Epson, and that one still works.
>
>Maybe the Staples ink dries/clogs faster?

Or maybe the surface tension is wrong and it falls out of the
cartridge easier: that's one of the problems I have refilling my
thermal inkjet Lexmark.

I know Epson's different head technology but it must still depend
on surface tension in the nozzles to hold the ink in, unless there
is magically good pressure balancing - which, from recent
discussions of CIS, I'm pretty sure there isn't.


Regards, LenW
-- 
   Please trim quotes to minimum for context, then
   reply _below_ or interleave point-by-point replies.