Developing apparatus with a developing regulating member

Details Developing apparatus with a developing regulating member Developing apparatus with a developing regulating member

1999-01-21

2000-11-14

Lee, Susan S. Y.

Electrophotography

Image formation

Development

399279, G03G 1508

Patent

active

06148167&

ABSTRACT:
In order to provide a developing apparatus in which the toner thin layer regulating capability and the toner charging capability can be enhanced by a developer regulating member of a simple structure, a development roller can be rotated with a small driving force, toner is prevented from adhering and development can be performed with high accuracy, the developer regulating member of the developing apparatus is provided with a surface constituting a step in a direction vertical to the direction of the rotation axis of the development roller, a pressed surface that is pressed against the development roller in the downstream side of the step and an opposed surface formed so as to be opposed to the development roller with a predetermined space therebetween in the upstream side of the step.

REFERENCES:
patent: 4537491 (1985-08-01), Komada et al.
patent: 4990959 (1991-02-01), Yamamuro et al.
patent: 5387967 (1995-02-01), Brewington et al.
patent: 5753396 (1998-05-01), Nakamura et al.
patent: 5768656 (1998-06-01), Nagasue et al.
patent: 5863329 (1999-01-01), Yamanouchi
patent: 5937253 (1999-08-01), Shimazaki et al.

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