US 2017/0363989 A1 · DEVELOPER CONTAINER, DEVELOPER STORAGE UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Abstract

A developer container includes a developer storage chamber that stores developer and includes an opening, a sealing member that seals the opening, an unsealing member that opens the opening by rotating such that the sealing member, a part of which is attached to the unsealing member, is peeled away, a stirring member that is attached to the unsealing member; and a regulating portion that regulates rotation of the unsealing member by contacting the stirring member. The regulating portion is provided to regulate the rotation of the unsealing member when the developer container receives an external force, and allow the unsealing member to rotate such that the opening is opened when the unsealing member receives driving power.

Claims28

Dependent claims

1-26. (canceled)

A sealing member attached to a developer container, the developer container comprising:

a flexible container for storing developer and provided with an opening for discharging the developer from the flexible container;
a rotatable member provided outside of the flexible container;
a stirring member attached to the rotatable member;
a frame that accommodates the flexible container, the rotatable member, and the stirring member;
and a drive transmitting member for rotating the rotatable member, the sealing member comprising:
a sealing portion attached to the flexible container so as to seal the opening;
and
an attached portion attached to the rotatable member,
wherein, the sealing member is attached to the flexible container and the rotatable member such that, if the rotatable member rotates in a first direction, the stirring member contacts a regulating portion before the sealing portion starts separating from the flexible container.

6 more elements

A developing unit comprising:

a developer container comprising:
a flexible container for storing developer and provided with an opening for discharging the developer from the flexible container;
a rotatable member provided outside of the flexible container;
a stirring member attached to the rotatable member;
a frame that accommodates the flexible container, the rotatable member, and the stirring member;
and
a drive transmitting member for rotating the rotatable member;
and
a sealing member attached to the developer container, the sealing member comprising:
a sealing portion attached to the flexible container so as to seal the opening;
and
an attached portion attached to the rotatable member,
wherein, the sealing member is attached to the flexible container and the rotatable member such that, if the rotatable member rotates in a first direction, the stirring member contacts a regulating portion before the sealing portion starts separating from the flexible container.

10 more elements

Dependencies are inferred from the claim text.

Developer container, developer storage unit, process cartridge, and image forming apparatus

Life of this patent

Developer container, developer storage unit, process cartridge, and image forming apparatus

Life of this patent

Abstract

Claims28