Method for refilling liquid into a liquid reservoir container, a liquid jet recording apparatus using such method, a liquid refilling container, a liquid reservoir container, and a head cartridge

A liquid reserving container for liquid in a liquid refilling container to be refilled thereinto when said liquid refilling container holding liquid therein is installed, comprising:

• a first chamber housing a negative pressure generating member and having an opening communicating with atmospheric air;
• a second chamber having a communicating portion communicating with said first chamber for forming essentially a closed space with the exception of said communicating portion;
• a first connecting unit provided for said second chamber for the connection with said first path provided for said liquid refilling container to conduct gas in said second chamber to said refilling container;
• a second connecting unit provided for said second chamber different from said first connecting unit for the connection with the second path provided for said liquid refilling container for conducting liquid in said liquid refilling container to said second chamber;
• and
• valve members provided respectively for said first and second connecting units and arranged to be open when said first path or second path is connected.

An integrated liquid container, comprising:

• a liquid reserving container provided with a first chamber housing a negative pressure generating member and having an opening communicating with the atmospheric air, and a second chamber communicating with said first chamber through a communicating portion for forming essentially a closed space with the exception of said communicating portion;
• and
• a liquid refilling container detachably mountable on said liquid reserving container for refilling liquid held therein into said liquid reserving container,
• wherein said liquid refilling container is provided with a first path for conducting gas in said second chamber to said liquid refilling container, and a second path different from said first path for conducting liquid in said liquid reserving container to said second chamber, said first path being above said second path;
• and
• wherein said liquid reserving container is provided with a first connecting unit arranged for said second chamber for the connection with said first path, a second connecting unit different from said first connecting unit arranged for said second chamber for the connection with said second path, and valve mechanisms provided respectively for said first and second connecting units and arranged to be open when said first path or said second path is connected.

An integrated head cartridge, comprising:

• a liquid reserving container provided with a first chamber housing a negative pressure generating member and having an opening communicating with the atmospheric air, and a second chamber communicating with said first chamber through a communicating portion for forming essentially a closed space with the exception of said communicating portion;
• a liquid refilling container detachably mountable on said liquid reserving container for refilling liquid held therein into said liquid reserving container;
• and
• a recording head for recording by discharging liquid onto a recording medium to be supplied from the first chamber of said liquid reserving container,
• wherein said liquid refilling container is provided with a first path for conducting gas in said second chamber to said liquid refilling container, and a second path different from said first path for conducting liquid in said liquid reserving container to said second chamber, said first path being above said second path;
• and
• wherein said liquid reserving container is provided with a first connecting unit arranged for said second chamber for the connection with said first path, a second connecting unit different from said first connecting unit arranged for said second chamber for the connection with said second path, and valve mechanisms provided respectively for said first and second connecting units and arranged to be open when said first path or said second path is connected.