Developer feeding member wherein its free end has a smaller elastic flexural characteristic relative to its supporting end and developing device having the same
AssigneeCanon Kabushiki Kaisha
InventorsHideki Matsumoto, Atsushi Numagami, Takao Nakagawa
Life of this patent
Estimating the term…
Abstract
A developer feeding member feeds a developer. The developer feeding member includes an elastic sheet for feeding the developer, and a rigid supporting portion for supporting this elastic sheet. In the developer feeding member, this developer feeding member is rotatable as the supporting portion is centered as a rotation center, and a flexural rigidity of a free end of the elastic sheet is smaller than that of a portion of the elastic sheet, which is located in the vicinity of this supporting portion.
Claims14
A developer feeding member for feeding a developer, comprising:
- an elastic sheet for feeding said developer;
- and
- a rigid supporting portion for supporting said elastic sheet,
- wherein said developer feeding member is rotatable as said supporting portion is centered as a rotation center, and
- an elastic flexural rigidity of a free end of said elastic sheet is smaller than that of a portion of said elastic sheet, which is located in a vicinity of said supporting portion, in a rotational direction of said developer feeding member.
A developing device comprising:
- a developer container for containing therein a developer;
- a developer bearing member for bearing the developer to feed the developer to a developing position;
- and
- a developer feeding member provided in said developer container, for feeding said developer toward said developer bearing member, said developer feeding member including an elastic sheet for feeding said developer, and a rigid supporting portion for supporting said elastic sheet,
- wherein said developer feeding member is rotatable as said supporting portion as centered as a rotation center, and
- an elastic flexural rigidity of a free end of said elastic sheet is smaller than that of a portion of said elastic sheet, which is located in a vicinity of said supporting portion, in a rotational direction of said developer feeding member.
Dependencies are inferred from the claim text.