Inkjet printer ink cartridge refilling structure

An ink refilling apparatus for refilling an ink cartridge, said apparatus comprising:

• a housing structure having a base portion and a side wall extending upwardly from said base portion to form an interior portion and an open top portion;
• a movable housing lid structure configured to cover said open top portion, said housing lid structure having a side wall depending therefrom;
• a first chamber formed in and opening outwardly from said top side surface of said housing lid structure having a side wall and a base wall, said first chamber having a first opening said first opening provides a fluid communication between said first chamber and said interior portion of said housing structure;
• a second chamber formed in and opening upwardly from said top side surface of said housing lid structure, said second chamber having a second opening therein, said second opening allows air to flow from said second chamber to the interior said housing structure;
• an ink injector received in said first chamber, said ink injector provided for injecting ink into an ink cartridge, said ink injector having a cavity formed therein configured to receive an ink cartridge therein, said ink injector cooperable with said first opening to allow ink to flow from said ink injector through said first opening into said interior portion of said housing structure;
• and
• an air injector received in said second chamber, said air injector provided for injecting air into said ink cartridge, said air injection means cooperable with said second opening to allow air to flow from said air injector into said interior portion of said housing structure.

An ink refilling apparatus for refilling an ink cartridge, said apparatus comprising:

• a housing structure having a base portion and a side wall extending upwardly from said base portion to form an interior portion and an open top portion;
• a movable housing lid structure configured to cover said open top portion, said housing lid structure having a top side surface and a side wall depending therefrom;
• a first chamber formed in and opening outwardly from said top side surface of said housing lid structure and having a side wall and a base wall, said first chamber having a first opening therein, said first opening providing a fluid communication between said first chamber and said interior portion of said housing structure;
• a second chamber formed in and opening outwardly from said top side surface of said housing lid structure, said second chamber having a second opening therein, said second opening allows a flow of air from said second chamber to said interior portion of said housing structure;
• an ink refilling cartridge housing structure having a side wall extending upwardly from a base wall to form an open top portion thereof, said ink refill cartridge housing structure slidably received in said first chamber;
• an ink refilling needle projecting from said base wall of said first chamber and having a first end extending into said ink refill cartridge housing structure and a second end extending into said base wall of said first chamber through a tubular member integrally formed with and extending upwardly from said base wall of said first chamber;
• a resilient assembly positioned between said base wall of said ink refill cartridge housing structure and said base wall of said first chamber, said resilient assembly provided for exerting an upwardly projecting force against said ink refilling cartridge housing;
• an air bellow member having an bottom end portion with an opening therein in fluid communication with said second opening in said second chamber;
• an air plunger member having a bottom wall engageable against said air bellow member, said air bellow member and said air plunger member slidably received in said second chamber;
• and
• a ball ram member extending downwardly from said bottom wall of said air plunger member.