Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan" 
<stefan_trethan@...> wrote:
>
> Do you know if it is posible to make a spongeless cart from a spongy 
> one?
> I don't really need a CIS, but i need something i can refill easily 
> inside  
> the printer.
> 
> ST
> 

No. The spongeless carts have the air vent specially designed to keep 
enough negative pressure to keep the ink in the cartridge. The sponge 
is specifically there to prevent leaking. If you took the sponge out, 
all the ink would drain into the printer.