Developing device provided with a plurality of developer conveying members
AssigneeCanon Kabushiki Kaisha
InventorsHideshi Kawaguchi, Kanji Yokomori
Life of this patent
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Abstract
A developing device for developing a latent image on an image carrying member includes a container member containing toner; a development roller provided at a development opening of the container member; a first toner conveying member disposed so as to face the development roller, wherein a direction of rotation of said first developer conveying member is opposite to a direction of rotation of said developer carrying member; and a second toner conveying member provided further downstream from the first conveying member as viewed in the direction of rotation of the development roller and having a higher conveying capability than the first toner conveying member. The toner circulation capability around the development roller is very high.
Claims10
A developing device comprising:
- a container member containing a developer;
- a rotating developer carrying member which is provided at an opening of said container member and carries the developer in said container as said developer carrying member rotates;
- a first developer conveying member disposed so as to face said developer carrying member, wherein a direction of rotation of said first developer conveying member is opposite to a direction of rotation of said developer carrying member;
- and
- a second developer conveying member disposed so as to face said developer carrying member and downstream from said first developer conveying member in the direction of rotation of said developer carrying member;
- wherein a toner conveying capability of said second developer conveying member is greater than a toner conveying capability of said first developer conveying member.
Dependencies are inferred from the claim text.