Patent ID: 9195166
Filing Date: 2015-11-24
Classification: G03G

Abstract:
1. A developer storage container comprising: a container portion configured to store developer; an agitation member provided inside the container portion and configured to agitate the developer through rotation, the agitation member including a rotation shaft and first and second contact portions, each having a length extending radially from the rotation shaft; and a transmission member connected to the agitation member via a through-hole provided in the container portion and configured to transmit a drive force for rotation to the agitation member, wherein the length of the first contact portion is longer than the length of the second contact portion such that: the first contact portion is configured to be held in contact with the container portion when the agitation member, not connected with the transmission member, is placed inside the container portion in a first phase in a rotational direction of the agitation member, and allow connection between the agitation member and the transmission member via the through-hole when the first contact portion is held in contact with the container portion, and the second contact portion is configured to be held in contact with the container portion when the agitation member, not connected with the transmission member, is placed inside the container portion in a second phase in the rotational direction of the agitation member, and not allow connection between the agitation member and the transmission member via the through-hole when the second contact portion is held in contact with the container portion.