Apparatus for developing electrostatic latent image and developi

Details Apparatus for developing electrostatic latent image and developi Apparatus for developing electrostatic latent image and developi

1991-09-26

1994-02-15

Fuller, Benjamin R.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118657, 355245, 355251, G03G 1509

Patent

active

052869172

ABSTRACT:
A developing apparatus for developing an electrostatic latent image having a movable developer carrying member for carrying one component developer to a developing zone where the developer carrying member is opposed to a latent image bearing member for carrying the electrostatic latent image, the developer carrying member being effective to triboelectrically charge the developer to a polarity for developing the latent image; a regulating member for regulating a thickness of a layer of the developer to be carried to the developing zone; a voltage source for applying a developing bias voltage to the developer carrying member; wherein the developer carrying member has a base member having a surface sandblasted to have an average surface roughness of 1.0-3.0 microns, and an outer layer thereon in which fine graphite particles are dispersed in a binder resin material, and wherein the outer layer has an average surface roughness of 0.8-2.5 microns.

REFERENCES:
patent: 4292387 (1981-09-01), Kanbe et al.
patent: 4368971 (1983-01-01), Watanabe et al.
patent: 4377332 (1983-03-01), Tamura
patent: 4380966 (1983-04-01), Isaka et al.
patent: 4522866 (1985-06-01), Nishikawa et al.
patent: 4982689 (1991-01-01), Honda et al.
patent: 4989044 (1991-01-01), Nishimura et al.
Japanese Standards Association, Definitions and Designation of Surface Roughness, Japanese Industrial Standard, JIS B 0601, published 1982, p. 112.

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