Developer stirring member, developing apparatus and process cartridge
AssigneeCanon Kabushiki Kaisha
InventorTakuya Kawakami
Life of this patent
Estimating the term…
Abstract
A developer stirring member for stirring a developer in a developer accommodating portion includes a supporting shaft and a sheet-like member for stirring the developer. The sheet-like member has a first lateral end which is a free end and a second lateral end which is fixed on the supporting shaft. The sheet-like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end. The sheet like member is fixed to the supporting shaft at intervals which are the same as pitches of the wave.
Claims19
A developer stirring member for stirring a developer in a developer accommodating portion, said developer stirring member comprising:
- a supporting shaft;
- a sheet-like member for stirring said developer, said sheet-like member having a first lateral end which is a free end and having a second lateral end which is fixed on said supporting shaft, wherein said sheet-like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end,
- wherein said sheet like member is fixed to said supporting shaft at intervals which are the same as pitches of the wave.
A developer stirring member for stirring a developer in a developer accommodating portion, said developer stirring member comprising:
- a supporting shaft;
- a sheet like member for stirring said developer, said sheet like member having a first lateral end which is a free end and having a second lateral end which is fixed on said supporting shaft, wherein said sheet like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end,
- wherein said sheet-like member having a plurality of portions-to-be-fixed at first intervals is fixed to said supporting shaft at a plurality of fixing portions which are provided on said supporting shaft at second intervals smaller than the first intervals.
A developing device for supplying a developer to a photosensitive drum in an image forming apparatus, said developing device comprising:
- a developer accommodating portion accommodating the developer;
- a supporting shaft;
- a sheet-like member for stirring said developer, said sheet-like member having a first lateral end which is a free end and having a second lateral end which is fixed on said supporting shaft, wherein said sheet-like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end,
- wherein said sheet like member is fixed to said supporting shaft at intervals which are the same as pitches of the wave.
A developing device for supplying a developer to a photosensitive drum in an image forming apparatus, said developing device comprising:
- a developer accommodating portion accommodating the developer;
- a supporting shaft;
- a sheet like member for stirring said developer, said sheet like member having a first lateral end which is a free end and having a second lateral end which is fixed on said supporting shaft, wherein said sheet like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end,
- wherein said sheet-like member having a plurality of portions-to-be-fixed at first intervals is fixed to said supporting shaft at a plurality of fixing portions which are provided on said supporting shaft at second intervals smaller than the first intervals.
A process cartridge detachably mountable to a main assembly of an image forming apparatus, said process cartridge comprising:
- a photosensitive drum:
- a developer carrying member for developing a latent image formed on said photosensitive drum with a developer;
- a developer accommodating portion accommodating the developer;
- a supporting shaft;
- a sheet-like member for stirring said developer, said sheet-like member having a first lateral end which is a free end and having a second lateral end which is fixed on said supporting shaft, wherein said sheet-like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end,
- wherein said sheet like member is fixed to said supporting shaft at intervals which are the same as pitches of the wave.
A process cartridge detachably mountable to a main assembly of an image forming apparatus, said process cartridge comprising:
- a photosensitive drum;
- a developer carrying member for developing a latent image formed on said photosensitive drum with a developer;
- a developer accommodating portion accommodating the developer;
- a supporting shaft;
- a sheet like member for stirring said developer, said sheet like member having a first lateral end which is a free end and having a second lateral end which is fixed on said supporting shaft, wherein said sheet like member is waved at the second lateral end, and waving is greater in the second lateral end than in the first lateral end,
- wherein said sheet-like member having a plurality of portions-to-be-fixed at first intervals is fixed to said supporting shaft at a plurality of fixing portions which are provided on said supporting shaft at second intervals smaller than the first intervals.
Dependencies are inferred from the claim text.