Cartridge and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsAkinobu Hirayama, Takahito Ueno, Toshiaki Takeuchi
Life of this patent
Estimating the term…
Abstract
A cartridge detachably mountable to a main assembly of an image forming apparatus includes a photosensitive drum; a discharging path for permitting movement of a developer removed from the drum, the discharging path including a developer discharge opening and a movable portion through which the developer is movable and which is movable between a retracted position in an upstream side with respect to a developer moving direction through the discharge opening and a advanced position in a downstream side with respect to the developer moving direction; and a sealing portion for closing the discharging path by contacting the movable portion at a position different from that of the discharge opening.
Claims25
1-43. (canceled)
A cartridge comprising:
- a frame;
- a photosensitive member rotatably supported by the frame;
- and
- a discharging path configured to permit movement of developer removed from the photosensitive member, the discharging path including a developer discharge opening and a movable portion through which the developer is movable toward the developer discharge opening, the movable portion being movably supported by a supporting portion of the frame and being movable relative to the frame between a retracted position on an upstream side with respect to a developer moving direction through the discharge opening and an advanced position on a downstream side with respect to the developer moving direction;
- and
- a sealing portion configured to prevent leakage of the developer from a clearance between the movable portion and the frame by being sandwiched between the movable portion and the frame, when the movable portion is in the retracted position.
Dependencies are inferred from the claim text.