A chip (100, 100', 100") of an ink container, wherein the chip (100, 100', 100") is electrically connected with styluses (211, 212, 213, 214, 215, 216, 217, 218, 219) of a holding portion in an inkjet printer; characterized in that the chip (100, 100', 100") comprises a chip substrate (10, 10', 10") and at least one conductive sheet (20, 20a, 20b) mounted on the chip substrate (10, 10', 10"); the chip substrate (10, 10', 10") has at least one substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") that is in contact with a stylus (211, 212, 213, 214, 215, 216, 217) of the inkjet printer, and a positioning portion that positions the at least one conductive sheet (20, 20a, 20b); the conductive sheet (20, 20a, 20b) comprises a body and a cell connecting portion that is provided at one end of the body, the cell connecting portion extends from the one end of the body and is perpendicular to the body; the cell connecting portion abuts the stylus (218, 219); the body is provided with at least one positioning mounting portion, and the positioning mounting portion fits with the positioning portion; and the body is parallel to a surface of the chip substrate (10, 10', 10") and is mounted on the positioning portion via the positioning mounting portion; wherein in an X axis direction, the substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") is located on a +X axis side of the chip substrate (10, 10', 10"), and the cell connecting portion protrudes, toward a +X axis direction, from a surface where the substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") is located; the cell connecting portion is provided thereon with a conductive sheet contact area for being in contact with the stylus (218, 219), and the conductive sheet contact area is located at a +X axis end of the cell connecting portion; wherein a direction where the ink container is mounted to the holding portion is a Z axis direction; a front side position of mounting is -Z axis direction; a direction that is perpendicular to the Z axis direction and parallel to a surface where the substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") is located is a Y axis direction; a direction that is perpendicular to the Z axis direction and the Y axis direction is an X axis direction; a direction in which an inner of the ink container points to the chip (100, 100', 100") is the +X axis direction; when viewed along the +X axis, and the +Z axis is above on a YZ plane, a direction of +Y axis is on the left side. the chip substrate (10, 10', 10") has at least one substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") that is in contact with a stylus (211, 212, 213, 214, 215, 216, 217) of the inkjet printer, and a positioning portion that positions the at least one conductive sheet (20, 20a, 20b); the conductive sheet (20, 20a, 20b) comprises a body and a cell connecting portion that is provided at one end of the body, the cell connecting portion extends from the one end of the body and is perpendicular to the body; the cell connecting portion abuts the stylus (218, 219); the body is provided with at least one positioning mounting portion, and the positioning mounting portion fits with the positioning portion; and the body is parallel to a surface of the chip substrate (10, 10', 10") and is mounted on the positioning portion via the positioning mounting portion; wherein in an X axis direction, the substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") is located on a +X axis side of the chip substrate (10, 10', 10"), and the cell connecting portion protrudes, toward a +X axis direction, from a surface where the substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") is located; the cell connecting portion is provided thereon with a conductive sheet contact area for being in contact with the stylus (218, 219), and the conductive sheet contact area is located at a +X axis end of the cell connecting portion; wherein a direction where the ink container is mounted to the holding portion is a Z axis direction; a front side position of mounting is -Z axis direction; a direction that is perpendicular to the Z axis direction and parallel to a surface where the substrate terminal (30, 31, 32, 33, 34, 35, 36, 37, 31', 32', 33', 34', 35', 36', 37', 31", 32", 33", 34", 35", 36", 37") is located is a Y axis direction; a direction that is perpendicular to the Z axis direction and the Y axis direction is an X axis direction; a direction in which an inner of the ink container points to the chip (100, 100', 100") is the +X axis direction; when viewed along the +X axis, and the +Z axis is above on a YZ plane, a direction of +Y axis is on the left side.