Patent ID: 8485642

Claim:
An ink tank detachably attachable to an ink jet printing apparatus having a first locking portion, a second locking portion, and a plurality of ink receiving portions, comprising: a housing containing a plurality of inks of different colors; a first engagement portion provided on a first face of the housing, and engageable with the first locking portion; a latch lever elastically deformable provided on a second face of the housing opposed to the first face, and having a second engagement portion engageable with the second locking portion; a plurality of ink retaining members contained in the housing, and corresponding to the plurality of inks, respectively, the plurality of ink retaining members being positioned to abut to the plurality of ink receiving portions, respectively; and a plurality of supply ports provided at a third face of the housing which connects the first face with the second face, the plurality of supply ports corresponding to the plurality of ink retaining members, respectively, and into which the plurality of ink receiving portions are insertable to supply the plurality of inks in the plurality of ink retaining members to the plurality of ink receiving portions through a plurality of abutment areas which are areas of the plurality of ink retaining member abutting on the plurality of ink receiving portions, wherein the plurality of supply ports are provided at the third face such that (i) centers of the plurality of abutment areas are located at different positions in a direction from the first face toward the second face, (ii) a distance in the direction between the centers of two abutment areas positioned closest to the second face is the smallest among a plurality of distances in the direction between the centers of any two abutment areas, and (ii) other distances between the centers of abutment areas other than the two abutment areas increase away from the first face toward the second face.