On Thu, Dec 18, 2003 at 06:39:10AM -0500, Herb Chong wrote:
> newer Epson printers track the amount of ink in the cartridge in the
> cartridge itself.
Actually the cartridges don't really sense how much ink is really there.
They just have a simple counter that gets decreased proportionate to how
much ink the printer thinks its using.
Of course, Epson would rather have the cartridge show "empty" when there's
some ink left, instead of running out of ink when it shows "some ink
left". Less nasty surprises for the user that way (and more regular ink
purchases, too...)
One can buy resetters that reset the cartridges to showing "full", which
allows one to print until they are *really* empty - but one still doesn't
know when it will *really* run empty.
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