Efficient development of an electrostatic latent image

Details Efficient development of an electrostatic latent image Efficient development of an electrostatic latent image

1998-06-15

2000-01-18

Pendegrass, Joan

Electrophotography

Internal machine environment

Particle or contaminant control

399236, G03G 1508

Patent

active

060164115

ABSTRACT:
A developing apparatus comprises a development housing containing developer and disposed opposite to a carrier for carrying a latent image, and a developing roller rotatably provided in the development housing and rotatively driven in a predetermined direction. The developer in the development housing is carried by the developing roller and the developer carried by the developing roller is applied to the carrier through an opening formed in the development housing. A rotation speed F.beta. of the developing roller is higher than a movement speed F.alpha. of the carrier. A gap .beta. between an opening downstream side wall portion of the development housing and the developing roller is greater than a gap .alpha. between the opening downstream side wall portion and the carrier.

REFERENCES:
patent: 4155329 (1979-05-01), Tsukamoto et al.
patent: 4963930 (1990-10-01), Yoshimaru et al.
patent: 5024181 (1991-06-01), Shoji et al.

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