Why is there a sponge in my ink cartridge?

Why do some inkjet printers have ink cartridges with sponges in them, while others just have a chamber for the ink? What purpose do the sponges serve?

Update:

Why does it need to absorb the ink? Why can't the ink just sit there?

5 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    The sponges in the ink cartridges are to deliver ink by capillary action. They actually were a more refined way of delivering the ink. The older inkl cartridges have a bladder and if there was a problem with the nozzle they tended to leak in the printer. The sponge type does awaay with this risk.

  • Anonymous
    1 decade ago

    This is so the sponge holds most of the ink, and so you run out of ink faster and have to go out and buy a new cartridge all the time.

    These companies just think of everything to make more money, and rob the poor consumers!

    Don't get a sponge ink holding printer. Get a free flowing fluid ink jet printer cartridge only.

  • 1 decade ago

    To keep the ink from sloshing around; to "wick" every last drop of ink; to lessen leakage; and to regulate the ink flow . . . I think (?)

  • 1 decade ago

    for a consistent ink flow

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  • 1 decade ago

    that is so it can absurb the ink

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