JPS581950U - dry developing device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の現像装置の概略構成図、第２図は本考案
の実施例を示す現像装置の概略構成図であるみ １．２１・・・・・・現像ローラー、２．２２−・−・
・・現像剤、３，２３・・・・・・ホッパー、４，２４
・・・・・・摩擦帯電部材、５，２５・・・・・・感光
体、記録体。Fig. 1 is a schematic diagram of a conventional developing device, and Fig. 2 is a schematic diagram of a developing device showing an embodiment of the present invention. −・
...Developer, 3,23...Hopper, 4,24
...Frictional charging member, 5, 25... Photoreceptor, recording body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 現像部において静電潜像担持面に対して所定間隙をおい
て対向して配設され、内部に磁石を有する非磁性円筒体
からなる可動現像剤保持体と、この現像剤保持体に現像
剤を供給する手段とを備え、この現像剤供給手段と現像
部との間の位置にあって現像剤保持体表面と接触し、か
つその接触点から現像剤供給手段の方向に開いた楔状空
間を形成するように配設された弾性摩擦帯電部材を有し
、この摩擦帯電部材の一端のエツジ部を前記現像剤保持
体に圧接させることによって現像剤の層厚を制御するよ
うにしたことを特徴とする乾式現像装置。In the developing section, a movable developer holder is disposed facing the electrostatic latent image bearing surface with a predetermined gap therebetween, and is made of a non-magnetic cylindrical body having a magnet inside. a wedge-shaped space that is located between the developer supply means and the developing section, contacts the surface of the developer holder, and opens in the direction of the developer supply means from the contact point. The invention is characterized in that it has an elastic triboelectric charging member disposed so as to form a layer, and the layer thickness of the developer is controlled by bringing an edge portion of one end of the tribocharging member into pressure contact with the developer holder. A dry developing device.