Developing device used in electrophotographic field

Details Developing device used in electrophotographic field Developing device used in electrophotographic field

1991-10-30

1993-06-15

Grimley, A. T.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

355251, 355259, G03G 1508

Patent

active

052201295

ABSTRACT:
A developing device using a one-component developer composed of colored fine synthetic resin toner particles, which device comprises a vessel for holding the developer, and a developing roller rotatably provided within the vessel, a portion thereof being exposed therefrom and resiliently pressed against a surface of a photosensitive drum. The toner particles are held by the surface of the developing roller to form a developer layer therearound, and are carried to the surface of the image formation drum for development of an electrostatic latent image formed thereon. The developing device further comprises a blade member provided within the vessel and resiliently engaged with the developing roller for regulating a thickness of the developer layer formed therearound. The blade member is constituted such that a proper regulation of the developer layer can be always ensured.

REFERENCES:
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patent: 3866572 (1975-02-01), Gundlach
patent: 4100884 (1988-07-01), Mochizuki et al.
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patent: 4373798 (1983-02-01), Tsukada et al.
patent: 4478505 (1984-10-01), Tashiro
patent: 4579081 (1986-04-01), Kohyama
patent: 4755847 (1988-07-01), Matsushiro et al.
patent: 4760422 (1988-07-01), Seimiya et al.
patent: 4827305 (1989-05-01), Enoguchi et al.
Patent Abstracts of Japan, vol. 13, No. 27 (P-815) (3375), Jan. 20, 1989, JP 63-225259 (A).
Patent Abstracts of Japan, vol. 11, No. 303 (P-622) (2750), Oct. 3, 1987, JP 62-95559 (A).

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