--- In
Homebrew_PCBs@yahoogroups.com, Lez (lez.briddon@) wrote:
>
> Same setup as I am going towards here, but using a photo 900p cd
> printer.
>
>
> Isnt a spongeless cartridge a cartridge with the sponge removed, or
> would it not be that simple.
>
Inkjet cartridges have a sponge in order to prevent the ink from
draining too rapidly into the print head, thus leaking. They also,
however, take up a huge amount of space that ink could otherwise use.
And if you keep refilling a cartridge, the sponge can eventually break
down and wind up clogging the printer.
The first line of spongeless cartridges were just carts with the
sponge removed - and they leaked all over the place. Newer versions
have a system of valves and vents that maintain the same kind of
'pressure' that a sponge cartridge would have. They often have a tiny
filter as well, since the sponge also serves as a filtering device.