Developing device with a sealing member to prevent developer lea

Details Developing device with a sealing member to prevent developer lea Developing device with a sealing member to prevent developer lea

1997-11-06

1999-02-09

Grimley, Arthur T.

Electrophotography

Internal machine environment

Particle or contaminant control

399103, G06G 1508

Patent

active

058706518

ABSTRACT:
A developing device includes a developer carrying member opposed to an electrostatic latent image carrier and carrying developer on its surface, a sealing member in contact with a surface of each end of the developer carrying member, and a developer entry preventing filler interposed between the developer carrying member and the sealing member for preventing entry of the developer, and containing fine powder. The fine powder has a volume average particle diameter of 1 .mu.m or less, and is made of an organic or inorganic material. The filler may contain silicon oil or grease.

REFERENCES:
patent: 4827305 (1989-05-01), Enoguchi et al.
patent: 5057868 (1991-10-01), Sekino et al.
patent: 5221943 (1993-06-01), Hasegawa
patent: 5293199 (1994-03-01), Saito et al.
patent: 5389732 (1995-02-01), Sekino
patent: 5541710 (1996-07-01), Stewart et al.
patent: 5606397 (1997-02-01), Honda et al.
patent: 5649270 (1997-07-01), Omata et al.

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