Developer supply container and developer supplying system

A developer supply container comprising:

• a developer accommodating body configured to contain developer;
• a developer discharging body in fluid communication with the developer accommodating body, the developer discharging body having a discharge opening, the discharge opening being configured to form at least a part of a discharge passageway through which developer may be discharged to outside of the developer supply container, with an end of the discharge passageway being positioned at a bottommost side of the developer supply container, and with the developer accommodating body being rotatable about a rotational axis thereof relative to the developer discharging body;
• a track positioned at a side of the developer discharging body, the track including a surface that extends from a first position to a second position, and
• a cover attached to the developer discharging body, the cover being configured to cover the developer discharging body and the track, and the cover including a front wall that crosses the rotational axis, with the front wall being provided with a slit,
• wherein, when (i) the developer supply container is oriented with the track positioned below a horizontal plane that includes the rotational axis and divides the developer supply container into an upper section and a lower section that includes the discharge opening and (ii) the discharge passageway through which developer is discharged to outside of the developer supply container is formed at the bottommost side of the developer supply container, the second position is closer to the horizontal plane than the first position is to the horizontal plane, the surface faces upward, the track extends such that a plane perpendicular to the rotational axis and passing through the track passes through the end of the discharge passageway, and the slit extends from the bottommost side of the developer supply container toward the horizontal plane.

A developer supply container comprising:

• a developer accommodating body configured to contain developer;
• a developer discharging body in fluid communication with the developer accommodating body, the developer discharging body having a discharge opening, the discharge opening being configured to form at least a part of a discharge passageway through which developer may be discharged to outside of the developer supply container, with an end of the discharge passageway being positioned at a bottommost side of the developer supply container, and with the developer accommodating body being rotatable about a rotational axis thereof relative to the developer discharging body;
• a gear portion configured to receiving a force to rotate the developer relative to the developer discharging body;
• a track positioned at a side of the developer discharging body, the track including a surface that extends from a first position to a second position, and
• a cover attached to the developer discharging body, the cover being configured to cover the developer discharging body and the track, and the cover including a front wall that crosses the rotational axis, with the front wall being provided with a slit,
• wherein, when (i) the developer supply container is oriented with the track positioned below a horizontal plane including the rotational axis and (ii) the discharge passageway through which developer is discharged to outside of the developer supply container is formed at the bottommost side of the developer supply container, the second position is closer to the gear portion in a direction of the rotational axis than the first position is to the gear portion in the direction of the rotational axis, the track ascends such that the second position is closer to the horizontal plane than the first position is to the horizontal plane, the surface faces upward, the track extends such that a plane perpendicular to the rotational axis and passing through the track crosses the end of the discharge passageway, and the slit extends from the bottommost side of the developer supply container toward the horizontal plane.