--- In
Homebrew_PCBs@yahoogroups.com, "fenrir_co" <fenrir@...> wrote:
> After much experimenting and the destruction of a C88 I've found that
> refilling in the printer can cause the carts to flood ink into the
> printhead, making you have to run a cleaning cycle anyway to make the
> squeegee clean off the head.
If I hadn't mentioned that before, I'm sorry I didn't. With things as
they are meant to be, the pressure of the ink is as if the level of
the ink is just above the level of the ink spike. But with the plug
pulled from the cartridge, now the pressure of the ink matches the
actual level of the ink in the cartridge. So an overpressure causes
ink to leak out the head.
Same thing happens if there is -any- air leakage around the refill plug.
> On a whole I've found the whole refilling business to be more hassle
> than it's worth, except for the fact that the last run of prints I did
> would have cost $156 taking them to Staples for 39c copies, or near
> $300 in OEM cartridges. If you are /not/ doing massive print runs of
> color copies, it's more trouble than it's worth (buy a Canon IP4200
> which has nice, big ink tanks, or a HP Deskjet that takes 96/97 carts)
That's why I use bulk ink systems in my printers.
BTW, the right auto reset chips should -not- reset to 100%. If they
do, the printer assumes you've slipped new carts in while it was off
and runs a heavy cleaning. The correct chips reset to 99%. No way
around turning the printer off and on again, but that's not so bad, is it?
Steve Greenfield