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US 6,321,057 B1Granted
Developing apparatus wherein a developer cloud coats a developer bearing member
AssigneeCanon Kabushiki Kaisha
InventorTakeshi Yamamoto
Life of this patent
Estimating the term…
Abstract
A developing apparatus in which a developer borne on a developer bearing body contacts an image bearing body at a developing portion. The developer is provided in a noncontact manner in the form of a developer cloud to the developer bearing body.
Claims24
A developing apparatus comprising:
- a developer bearing member for bearing a developer and carrying the developer to a developing portion, the developer borne on said developer bearing member contacting with an image bearing member at the developing portion;
- clouding means for forming a developer cloud directed in a direction opposite to a moving direction of said developer bearing member, proximate to said developer bearing member;
- and
- coating means for coating said developer bearing member with the developer in the developer cloud by force of an electric field.
1 more element
A developing apparatus comprising:
- a developer bearing member for bearing a developer and carrying the developer to a developing portion, the developer borne on said developer bearing member contacting with an image bearing member at the developing portion;
- clouding means for forming a developer cloud passing in the vicinity of said developer bearing member in a direction away from said developer bearing member;
- and
- coating means for coating said developer bearing member with the developer in the developer cloud by force of an electric field.
1 more element
A developing apparatus comprising:
- a developer bearing member for bearing a developer and carrying the developer to a developing portion, the developer borne on said developer bearing member contacting with an image bearing member at the developing portion;
- a movable member provided in a noncontact state to said developer bearing member, said movable member moving while bearing the developer supplied to said developer bearing member;
- a tapped member arranged to be tapped by said movable member, thereby forms a developer cloud being from said movable member, and the developer cloud passing between said developer bearing member and said movable member;
- and
- coating means for coating said developer bearing member with the developer in the developer cloud by force of an electric field generated between said developer bearing member and said movable member.
2 more elements
Dependencies are inferred from the claim text.