Abstract: An ink cartridge includes a first case having a wall having a first end and a second end opposite the first end. 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. The wall also 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. The ink cartridge also includes a second case enclosed within the first case, and an ink supply portion positioned adjacent to the second end of the wall, in which a portion of the ink supply portion is configured to be received by the first opening. The ink cartridge also includes an opaque, protruding portion extending from the second case and positioned at the wall between the first end of the wall and the ink supply portion, and a portion of the protruding portion is aligned with the second opening.

Abstract: An ink cartridge includes an ink chamber, and a translucent portion configured to be in fluid communication with the ink chamber. The translucent portion has an inner space formed therein, and the translucent portion includes a first wall, a second wall opposite the first wall, and a third wall connected to each of the first wall and the second wall. The ink cartridge also includes a signal blocking member disposed within the inner space of the translucent portion between the first wall and the second wall, and a translucent portion rib disposed within the inner space of the translucent portion between the first wall and the second wall. Moreover, the translucent portion rib extends a from the third wall, and a first distance between the translucent portion rib and the first wall is less than a second distance between the signal blocking member and the first wall.

Abstract: An ink cartridge includes a first wall having a first end and a second end opposite the first end, and a second wall connected to and perpendicular to the first wall. The ink cartridge also includes an ink supply portion positioned at the first wall adjacent to the second end of the first wall, and a protrusion extending a predetermined length from the second end of the first wall. Moreover, an angle between the protrusion and the second wall continuously is greater than 180 degrees throughout the predetermined length of the protrusion.

Abstract: An ink cartridge includes at least one wall; an ink chamber capable of storing ink, the ink chamber being bounded, at least in part, by the at least one wall; an ink supply opening configured to permit communication between the ink chamber and an area outside of the ink chamber; and a detection portion. The detection portion extends away from the ink chamber relative to portions of the ink cartridge adjacent to the detection portion, at least when the ink cartridge is installed in an image forming apparatus; and at least one part of the detection portion is capable of obstructing at least a portion of a light beam directed through the detection portion.

Abstract: An ink cartridge includes a first case having a particular opening formed therethrough, and a second case enclosed within the first case, in which the second case includes a particular wall. The ink cartridge also includes a signal blocking portion provided at the particular wall and extending in a predetermined direction into the particular opening, and the signal blocking portion divides the particular opening into a first opening portion and a second opening portion.

Abstract: A method of manufacturing an ink cartridge system includes the steps of using a first mold to make a first case member a first ink cartridge, using a second mold to make a second case member of the first ink cartridge, using the first mold to make a first case member of a second ink cartridge, using a third mold to make a second case member of the second ink cartridge, using a fourth mold to make a first case member of a third ink cartridge, and using the third mold to make the second case member of the third ink cartridge. Moreover, a size of the first ink cartridge is not equal to a size of the second ink cartridge, the size of the first ink cartridge is not equal to a size of the third ink cartridge, and the size of the second ink cartridge is not equal to the size of the third ink cartridge.

Abstract: An ink cartridge includes a case which includes a first case member. The first case member includes a first wall, and the first wall includes an air intake portion extending from the first wall in a predetermined direction. The case also includes a second case member which is connected to the first case member, and the first case member and the second case member define an ink chamber therein. The second case member includes a second wall which is opposite to the first wall, and a support member connected to an interior surface of the second wall. The ink cartridge also includes a movable member which is connected to the support member.

Abstract: An ink cartridge includes a first case, and a second case enclosed within the first case. The second case includes a particular wall, and a translucent portion extending from the particular wall in a predetermined direction, Moreover, the translucent portion has an inner space formed therein. The ink cartridge also includes a signal blocking portion disposed within the second case, wherein the signal blocking portion is disposed within the inner space of the translucent member.

Abstract: A method of manufacturing an ink cartridge system includes the steps of using a first mold to make a first case member a first ink cartridge, using a second mold to make a second case member of the first ink cartridge, using the first mold to make a first case member of a second ink cartridge, using a third mold to make a second case member of the second ink cartridge, using a fourth mold to make a first case member of a third ink cartridge, and using the third mold to make the second case member of the third ink cartridge. Moreover, a size of the first ink cartridge is not equal to a size of the second ink cartridge, the size of the first ink cartridge is not equal to a size of the third ink cartridge, and the size of the second ink cartridge is not equal to the size of the third ink cartridge.

Abstract: An ink cartridge includes a first case having a wall having a first end and a second end opposite the first end. 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. The wall also 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. The ink cartridge also includes a second case enclosed within the first case, and an ink supply portion positioned adjacent to the second end of the wall, in which a portion of the ink supply portion is configured to be received by the first opening. The ink cartridge also include 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, and a portion of the translucent portion is aligned with the second opening.