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US 6,334,035 B1Granted
Developer container and cartridge
AssigneeCanon Kabushiki Kaisha
InventorsDaisuke Abe, Tadayuki Tsuda, Yoshiyuki Batori, Takao Nakagawa
Life of this patent
Estimating the term…
Abstract
A developer container which has a container main body includes an opening through which a developer is supplied, a seal member for unsealably sealing the opening, and a drive source for applying a force for unsealing the seal member. The drive source has an elastic member and the drive source applies the unsealing force using a restoring force of the elastic member.
Claims48
A developer container comprising:
- a container main body including an opening through which a developer is supplied;
- a seal member for unsealably sealing said opening;
- and
- a drive source for applying a force for unsealing said seal member, said drive source including an elastic member and said drive source applying said unsealing force using a restoring force of the elastic member, wherein said elastic member is a constant-load spring.
1 more element
A developer container comprising:
- a container main body including an opening through which a developer is supplied;
- a seal member for unsealably sealing said opening;
- a drive source for applying a force for unsealing said seal member, said drive source including an elastic member and said drive source applying said unsealing force using a restoring force of the elastic member;
- and
- holding means holding in a state where the restoring force of said elastic member for applying the unsealing force unsealing said seal member is stored,
- wherein when said developer container is installed in an image forming apparatus main body, a releasing member provided in said apparatus main body releases the holding of said holding means in the state where said restoring force is stored, and
- wherein interlocked with an operation for closing a main body cover provided in said apparatus main body, said releasing member releases the holding of said holding means in the state where said restoring force is stored.
4 more elements
A developer container comprising:
- a container main body including an opening through which a developer is supplied;
- a seal member for unsealably sealing said opening;
- a drive source for applying a force for unsealing said seal member, said drive source including an elastic member and said drive source applying said unsealing force using a restoring force of the elastic member;
- holding means holding in a state where the restoring force of said elastic member for applying the unsealing force unsealing said seal member is stored;
- and
- support means provided outside said container main body to support said holding means, wherein said holding means is covered by said support means.
3 more elements
A cartridge detachably attachable to an image forming apparatus main body comprising:
- a developer bearing member for bearing a developer to develop an electrostatic image formed on an image bearing member with the developer;
- a developer container for supplying the developer toward said developer bearing member, said developer container including a container main body having an opening through which the developer is supplied and a seal member for unsealably sealing said opening;
- and
- a drive source for applying a force for unsealing said seal member, said drive source including an elastic member to apply said unsealing force using a restoring force of said elastic member, wherein said elastic member is a constant-load spring.
1 more element
A cartridge detachably attachable to an image forming apparatus main body comprising:
- a developer bearing member for bearing a developer to develop an electrostatic image formed on an image bearing member with the developer;
- a developer container for supplying the developer toward said developer bearing member, said developer container including a container main body having an opening through which the developer is supplied and a seal member for unsealably sealing said opening;
- and
- a drive source for applying a force for unsealing said seal member, said drive source including an elastic member to apply said unsealing force using a restoring force of said elastic member, wherein said developer container has holding means holding in a state where the restoring force of said elastic member for applying the unsealing force unsealing said seal member is stored,
- wherein when said developer container is installed in an image forming apparatus main body, a releasing member provided in said apparatus main body releases the holding of said holding means in the state where said restoring force is stored, and
- wherein interlocked with an operation for closing a main body cover provided in said apparatus main body, said releasing member releases the holding of said holding means in the state where said restoring force is stored.
3 more elements
A cartridge detachably attachable to an image forming apparatus main body comprising:
- a developer bearing member for bearing a developer to develop an electrostatic image formed on an image bearing member with the developer;
- a developer container for supplying the developer toward said developer bearing member, said developer container including a container main body having an opening through which the developer is supplied and a seal member for unsealably sealing said opening;
- and
- a drive source for applying a force for unsealing said seal member, said drive source including an elastic member to apply said unsealing force using a restoring force of said elastic member,
- wherein said developer container has holding means holding in a state where the restoring force of said elastic member for applying the unsealing force unsealing said seal member is stored,
- wherein said cartridge includes support means provided outside said container main body to support said holding means, and said holding means is covered by said support means.
3 more elements
Dependencies are inferred from the claim text.