Sealing member, and process cartridge and image forming apparatus using same
AssigneeCanon Kabushiki Kaisha
InventorsKazushi Watanabe, Yoshikazu Sasago, Shinya Noda, Kazumi Sekine
Life of this patent
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Abstract
A sealing member for preventing toner from leaking, having a first lip portion which abuts against a frame member, a second lip portion which abuts against the longitudinal end portion of a blade member, and a third lip portion which abuts against a rotary member. The sealing members may be employed in a process cartridge or an image forming apparatus.
Claims20
An image forming apparatus, to which a process cartridge is detachably mountable, for forming an image on a recording medium, said image forming apparatus comprising:
- process cartridge mounting means for mounting a process cartridge comprising a frame member, a rotary member mounted on said frame member, said rotary member constituting process means, a blade member abutting said rotary member, and a sealing member having a first lip portion abutting the frame member, a second lip portion abutting a longitudinal end portion of said blade member, and a third lip portion abutting said rotary member;
- optical means for projecting light according to image information;
- and
- feeding means for feeding a recording medium.
A process cartridge detachably mountable to an image forming apparatus, said process cartridge comprising:
- a frame member;
- a rotary member mounted on said frame member, said rotary member constituting a process means;
- a blade member abutting said rotary member;
- and
- a sealing member having a first lip portion for abutting the frame member, a second lip portion for abutting a longitudinal end portion of said blade member, and a third lip portion for abutting said rotary member.
A sealing member for an image forming device including
- a frame member, a blade member and a rotary member, the sealing member comprising:
- a first lip portion for abutting the frame member;
- a second lip portion for abutting a longitudinal end portion of the blade member;
- and
- a third lip portion for abutting the rotary member.
Dependencies are inferred from the claim text.