Patent ID: 6814435
Filing Date: 2004-11-09
Classification: B41J

Abstract:
An ink cartridge which is used for an ink-jet recording apparatus, comprising:a plurality of ink storage chambers storing ink of five different colors, all of the ink storage chambers being collectively integrally formed in the ink cartridge; wherein different chambers of the five different colors are adjacent to each other; wherein the ink storage chambers store light cyan ink, deep cyan ink, light magenta ink, deep magenta ink and yellow ink; and wherein each ink storage chamber has an ink supply port, and all ink supply ports are aligned on one straight line; wherein the ink storage chambers are partitioned by partitioning walls and have supply ports constructed to supply ink, the partitioning walls having a first end and a second end, the second end being nearer the ink supply ports of each of said ink storage chambers, the partitioning walls being formed so that a thickness of the partitioning walls gradually increases from the first end to the second end, whereby the second end is thicker than the first end.