A cartridge comprising: a housing configured to accommodate therein developer; a driving receiving part configured to receive a driving force; a rotary member configured to rotate by receiving a driving force from the driving receiving part and move in an axis direction, which is parallel with a rotational axis of the rotary member, while rotating; and a detected member configured to move in the axis direction by receiving a driving force from the rotary member, wherein the rotary member includes: a main body part having a first surface facing the detected member in the axis direction and a second surface positioned at an opposite side of the first surface in the axis direction, a first slide part arranged on the first surface and configured to apply a force for moving the detected member in the axis direction to the detected member, and a second slide part arranged on the second surface and configured to receive a force for moving the main body part in the axis direction characterized in that the detected member includes a first abutment part on which the first slide part abuts, and the housing includes a second abutment part on which the second slide part abuts and at least one of the first slide part and the first abutment part includes a first inclined part (59A, 60A, 61A), which is inclined in a direction coming close to the first surface toward a downstream side in a rotating direction of the rotary member, and at least one of the second slide part and the second abutment part includes a second inclined part, which is inclined in a direction coming close to the second surface toward the downstream side in the rotating direction of the rotary member. a housing configured to accommodate therein developer; a driving receiving part configured to receive a driving force; a rotary member configured to rotate by receiving a driving force from the driving receiving part and move in an axis direction, which is parallel with a rotational axis of the rotary member, while rotating; and a detected member configured to move in the axis direction by receiving a driving force from the rotary member, wherein the rotary member includes: a main body part having a first surface facing the detected member in the axis direction and a second surface positioned at an opposite side of the first surface in the axis direction, a first slide part arranged on the first surface and configured to apply a force for moving the detected member in the axis direction to the detected member, and a second slide part arranged on the second surface and configured to receive a force for moving the main body part in the axis direction characterized in that the detected member includes a first abutment part on which the first slide part abuts, and the housing includes a second abutment part on which the second slide part abuts and at least one of the first slide part and the first abutment part includes a first inclined part (59A, 60A, 61A), which is inclined in a direction coming close to the first surface toward a downstream side in a rotating direction of the rotary member, and at least one of the second slide part and the second abutment part includes a second inclined part, which is inclined in a direction coming close to the second surface toward the downstream side in the rotating direction of the rotary member.