Patent ID: 7222950
Filing Date: 2007-05-29
Classification: B41J

Abstract:
1. An ink cartridge, comprising: a first case comprising a wall having a first end and a second end opposite the first end, wherein the wall has a first opening and a second opening formed therethrough, the first opening has a first center, and the second opening has a second center, wherein the wall has a first center line and a second center line which is perpendicular to the first center line, and each of the first center and the second center is offset from each of the first center line and the second center line; a second case enclosed within the first case; an ink chamber; an ink supply portion positioned adjacent to the second end of the wall, wherein at least a portion of the ink supply portion is configured to be received by the first opening; a translucent portion extending from the second case and positioned at the wall between the first end of the wall and the ink supply portion, wherein at least a portion of the translucent portion is aligned with the second opening; and a movable member, wherein the translucent portion has an inner space formed therein, and the movable member comprises: a signal blocking portion disposed within the inner space of the translucent portion; and a float portion disposed within the ink chamber, wherein the float portion is configured to move between a first position and a second position and the signal blocking portion is configured to move within the inner space of the translucent portion based at least on an amount of ink disposed within the ink chamber, wherein when the float portion moves from the first position to the second position the float moves in a first predetermined direction and the signal blocking portion moves within the inner space of the translucent portion in a second predetermined direction which is opposite the first predetermined direction.