Patent ID: 11921440
Assignee: OKI ELECTRIC INDUSTRY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A developer supply device comprising:
a developer container including a housing with a supply port, and containing a developer therein; and
a developer container holder that includes a reception port to receive the developer supplied from the supply port of the developer container, and to which the developer container is to be attached in a first direction, wherein
the developer container includes:
an opening/closing member movable relative to the housing between a closing position where the opening/closing member closes the supply port and an opening position where the opening/closing member opens the supply port; and
a sealing member provided between the housing and the opening/closing member,
the opening/closing member includes:
a cover portion including a cover surface configured to close the supply port; and
a protruding portion projected in the first direction from the cover portion and provided at a position spaced apart from the cover surface to a side of the developer container holder,
the developer container holder includes an engagement portion configured to be engaged with the protruding portion in a state where the developer container is attached to the developer container holder, and
a part of the engagement portion is located between the protruding portion and the sealing member at a point after the protruding portion of the opening/closing member is engaged with the engagement portion of the developer container holder and before the supply port of the developer container and the reception port of the developer container holder are opposed to each other in a course of attaching the developer container to the developer container holder.