Developer regulating member and developing apparatus including the same
AssigneeCanon Kabushiki Kaisha
InventorsShinya Yamamoto, Koichiro Takashima
Life of this patent
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Abstract
A developer regulating member provided in a developing apparatus according to the present invention includes a metallic thin plate. The metallic thin plate is provided with polyamide elastomer having a thickness of 5 to 300 μm at an abutment portion thereof with a developing roller. With the above structure, occurrence of a fused product is prevented, and a stable developer thin layer is formed. Accordingly, occurrence of a number of fine streaks on formed images is prevented, and thus, images of high quality can be obtained.
Claims56
A developer regulating member for regulating an amount of developer carried on a developer carrying member, comprising:
- a base;
- and
- an elastic member provided on said base and pressed against said developer carrying member, said elastic member having a resistance of 104 Ω or more and a thickness of 300 μm or less.
A developer regulating member for regulating the amount of developer carried on a developer carrying member, comprising:
- a base;
- and
- an elastic member provided on said base and pressed against said developer carrying member, said elastic member containing polyamide and having a thickness of 5 to 300 μm.
A developing apparatus comprising:
- a developer carrying member for carrying a developer, said developer carrying member developing an electrostatic image formed on an image bearing member with the developer;
- and
- a developer regulating member for regulating an amount of the developer carried on said developer carrying member:
- in which said developer regulating member comprises a base, and an elastic member provided on said base and pressed against said developer carrying member;
- and said elastic member has a resistance of 104 Ω or more and a thickness of 300 μm or less.
A developing apparatus comprising:
- a developer carrying member for carrying a developer, said developer carrying member developing an electrostatic image formed on an image bearing member with the developer;
- and
- a developer regulating member for regulating an amount of the developer carried on said developer carrying member:
- in which said developer regulating member comprises a base, and an elastic member provided on said base and pressed against said developer carrying member;
- and said elastic member contains polyamide and has a thickness of 5 to 300 μm.
Dependencies are inferred from the claim text.