Patent ID: 9354547
Filing Date: 2016-05-31
CPC Classification: G03G

Claim Text:
1. A developer container, comprising: a container body including an inner surface defining a cylindrical internal space extending in a first direction, the container body being formed with a developer discharge port formed in a lower portion of the container body and communicating with the internal space for discharging developer therethrough, the container body including a wall disposed at one end thereof in the first direction and defining an end surface of the internal space; a movable wall including an outer surface disposed in close contact with the inner surface of the container body, and a conveying surface defining a storage space for containing the developer in cooperation with the inner surface of the container body, the movable wall being movable in the first direction from one end side to the other end side of the internal space, while conveying the developer in the storage space to the developer discharge port; a detection sensor provided on the container body near the developer discharge port and configured to detect the developer in the storage space; a lid attached to the other end of the container body that is opposite to the wall in the first direction for closing the internal space; and a shaft extending in the first direction in the internal space and supported on the wall and the lid, wherein the movable wall moves along the shaft and includes