An ink tank cartridge for an ink-jet type recording apparatus is provided. The ink tank cartridge comprises a first chamber and a second chamber formed adjacent the first chamber. A porous member is housed in the second chamber. A partition wall separates the first chamber from second chamber, which...http://www.google.com/patents/US6474798?utm_source=gb-gplus-sharePatent US6474798 - Ink supplied printer head and ink container
