Developing device and image forming apparatus with a flow...

Details Developing device and image forming apparatus with a flow... Developing device and image forming apparatus with a flow...

2011-03-08

2011-03-08

Grainger, Quana M (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

07904002

ABSTRACT:
A developing device for developing an electrostatic latent image formed on an image bearer with a dual-component developer, includes: a developing hopper for storing the developer; an agitation and conveying member for conveying the developer while agitating; a developer support which supports the developer that has been mixed and agitated inside the developing hopper and supplies the developer to a developing area located opposing the image bearer; a layer thickness-regulating member for regulating the layer thickness of the developer being conveyed by the developer support; a flow-guide plate member for flowing down the surplus developer that was rejected and conveyed away from the layer thickness-regulating member; a multiple number of diffusing elements arranged upright on the flow-guided plate member for flowing down the surplus developer in a predetermined direction whilst diffusing the developer with respect to the longitudinal direction of the developer support; and a downflow direction turning mechanism for periodically turning the downflow direction of the surplus developer regulated by the diffusing elements.

REFERENCES:
patent: 5091749 (1992-02-01), Iida et al.
patent: 62-50860 (1987-03-01), None
patent: 63-74652 (1988-05-01), None
patent: 3-35267 (1991-02-01), None
patent: 3-39766 (1991-02-01), None
patent: 2006-154151 (2006-06-01), None
patent: 2006-154235 (2006-07-01), None

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