Latent electrostatic image developing device having a toner conc

Details Latent electrostatic image developing device having a toner conc Latent electrostatic image developing device having a toner conc

1996-09-24

1998-02-24

Grimley, Arthur T.

Electrophotography

Diagnostics

Consumable

366291, 399256, 399258, G03G 1508

Patent

active

057220026

ABSTRACT:
A latent electrostatic image developing device. A developer agitating/conveying mechanism is disposed in a development housing and has an agitating/conveying member for conveying a developer, while agitating it, along a developer application. A toner concentration detector is disposed in the bottom wall of the development housing to oppose the agitating/conveying member. The upper surface and the side surface of a detector portion of the toner concentration detector are connected by an arcuate surface or a chamfered surface. The toner concentration detector is fitted into an opening formed in the bottom wall of the development housing, and the upper surface of the detector portion protrudes from the inner surface of the bottom wall of the development housing by an amount nearly corresponding to the radius of the arcuate surface or the height of the chamfer of the chamfered surface.

REFERENCES:
patent: 4956669 (1990-09-01), Nakamura
patent: 4989539 (1991-02-01), Ichikawa
patent: 5303011 (1994-04-01), Noguchi et al.
patent: 5353103 (1994-10-01), Okamoto et al.
patent: 5495320 (1996-02-01), Araki et al.
patent: 5510882 (1996-04-01), Kikuta et al.
patent: 5519316 (1996-05-01), Hagiwara et al.

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