Homebrew PCBs

I would not be so sure.
The chips on inkjet printers have no relation to reality and the ink
level in the cart. They are just dumb counters that happily count down
to the day when they can defraud some more money out of you.

Look around the web, usually clever people have found a way to reset
or disable those nasty little bugs. For some cartridges you can buy
"auto reset" chips too, but beware, scrupulous sellers have latched
onto the trend and sell those auto reset chips at insane prices.

ST

On Jan 7, 2008 10:39 AM, Derryck Croker <derryck@...> wrote:
> The toner cartridges I've looked at have sensors to detect when the
> toner is low, which is why it's often possible to get a few more pages
> printed by giving the cart. a shake in an attempt to re-cover the
> sensor. That's what I believe, anyway.
>
> So it might be possible to fool the printer by hacking the sensor on
> the empty carts. to report "full".
>
> Or just don't empty the colour carts in the first place!
>
> --
>
> Cheers
>
> Derryck
>