Electrophotography – Internal machine environment – Particle or contaminant control
Patent
1995-03-23
1997-01-21
Ramirez, Nestor R.
Electrophotography
Internal machine environment
Particle or contaminant control
399274, G03G 1506
Patent
active
055963927
ABSTRACT:
A developing apparatus including a developer container for accommodating a developer having magnetic particles; a rotatable developer carrying member, provided in a opening of the the developer container for carrying the developer; a magnet in the developer carrying member; a magnetic member, provided at a end portion of the developer carrying member, being subjected to magnetic force of the the magnet; wherein the magnetic member is positioned with a gap relative to the developer carrying member, along a circumference of the developer carrying member; a regulating member for regulating the developer on the the developer carrying member; wherein magnetic confining force for the developer by the magnetic member is weaker toward a regulation portion of the regulating member in a circumferential direction of the developer carrying member.
REFERENCES:
patent: 3982498 (1976-09-01), Wilcox
patent: 5177536 (1993-01-01), Watanabe et al.
patent: 5187326 (1993-02-01), Shirai
patent: 5267007 (1993-11-01), Watanabe et al.
patent: 5287148 (1994-02-01), Sakemi et al.
Canon Kabushiki Kaisha
Ramirez Nestor R.
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