DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS CAPABLE OF REDUCING STRESS APPLIED TO DEVELOPER
First Claim
1. A development device comprising:
- a development roller to carry a developer containing non-magnetic toner and magnetic carrier;
a developer storage to store the developer;
a first rotating member provided in the developer storage at a position near the development roller;
a second rotating member provided in the developer storage at a position farther from the development roller than the first rotating member is,the first rotating member and the second rotating member agitating and conveying the developer stored in the developer storage to supply the agitated developer to the development roller; and
a rotation speed adjuster to adjust a rotation speed of the second rotating member depending on an amount of new toner supplied to the developer storage.
1 Assignment
0 Petitions
Accused Products
Abstract
A development device includes a development roller, a developer storage, a first rotating member, a second rotating member, and a rotation speed adjuster. The development roller carries a developer containing non-magnetic toner and magnetic carrier. The developer storage stores the developer. The first rotating member is provided in the developer storage at a position near the development roller. The second rotating member is provided in the developer storage at a position farther from the development roller than the first rotating member is. The first rotating member and the second rotating member agitate and convey the developer stored in the developer storage to supply the agitated developer to the development roller. The rotation speed adjuster adjusts a rotation speed of the second rotating member depending on an amount of new toner supplied to the developer storage.
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Citations
8 Claims
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1. A development device comprising:
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a development roller to carry a developer containing non-magnetic toner and magnetic carrier; a developer storage to store the developer; a first rotating member provided in the developer storage at a position near the development roller; a second rotating member provided in the developer storage at a position farther from the development roller than the first rotating member is, the first rotating member and the second rotating member agitating and conveying the developer stored in the developer storage to supply the agitated developer to the development roller; and a rotation speed adjuster to adjust a rotation speed of the second rotating member depending on an amount of new toner supplied to the developer storage. - View Dependent Claims (2, 3, 4, 5)
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6. An image forming apparatus comprising:
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a development device to develop an electrostatic latent image into a toner image; a toner container to contain new toner; and a toner conveyer to convey the new toner discharged from the toner container to the development device, the development device comprising; a development roller to carry a developer containing non-magnetic toner and magnetic carrier; a developer storage to store the developer; a first rotating member provided in the developer storage at a position near the development roller; a second rotating member provided in the developer storage at a position farther from the development roller than the first rotating member is, the first rotating member and the second rotating member agitating and conveying the developer stored in the developer storage to supply the agitated developer to the development roller; and a rotation speed adjuster to adjust a rotation speed of the second rotating member depending on an amount of the new toner supplied by the toner conveyer to the developer storage. - View Dependent Claims (7, 8)
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Specification