JPS6054150U

JPS6054150U - developing device

Info

Publication number: JPS6054150U
Application number: JP14455983U
Authority: JP
Inventors: 神山　三明
Original assignee: 株式会社東芝
Priority date: 1983-09-20
Filing date: 1983-09-20
Publication date: 1985-04-16
Also published as: JPH0244295Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の現像装置を適用した複写機の概略断面
図、第２図は本考案の現像装置の一実施例を示す概略斜
視図、第３図は同装置の概略断面図、第４図Ａ、　Ｂは
同装置の現像ローラの製造工程を示す断面図、第５図は
同現像装置の作用説明のための部分概略断面図である。２・・・・・・像担持体、３５・・・・・・現像剤担持
体、３５Ａ・・・・・・導電性表面、３５Ｂ・・・・・
・誘電性表面、３６・・・・・・弾性体、Ｔ・・・・・
・現像剤。補正　昭５９．４．２５実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲（１）　　表面に電荷パターンが形成される像担持体に
対向する位置で近接移動する現像剤担持体により現像剤
を搬送し、この搬送途上の現像剤を前記電荷パターンに
付着させて現像を行う現像装置において、前記現像剤担
持体の現像剤搬送面は、導電性表面と誘電性表面とが網
点状に露出して成ることを特徴とする現像装置。（２）　　導電性表面は、現像剤粒径をＤとしたとき約
０．１Ｄから１．０Ｄまでの間隔を有して前記誘電性表
面と網点状に露出して成るものである実用新案登録請求
の一囲第１項に記載の現像装置。FIG. 1 is a schematic sectional view of a copying machine to which the developing device of the present invention is applied, FIG. 2 is a schematic perspective view showing an embodiment of the developing device of the present invention, and FIG. 3 is a schematic sectional view of the same device. 4A and 4B are sectional views showing the manufacturing process of the developing roller of the same device, and FIG. 5 is a partial schematic sectional view for explaining the operation of the same developing device. 2... Image carrier, 35... Developer carrier, 35A... Conductive surface, 35B...
・Dielectric surface, 36...Elastic body, T...
・Developer. Amendment April 25, 1980 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims (1) A developer is conveyed by a developer carrier that moves close to an image carrier at a position opposite to an image carrier on which a charge pattern is formed, and the developer on the way is transferred to the charge pattern. A developing device that performs development by attaching the developer to the developer carrier, wherein the developer transporting surface of the developer carrier is formed by exposing a conductive surface and a dielectric surface in a halftone dot pattern. (2) A utility model in which the conductive surface is exposed in the form of halftone dots with the dielectric surface with an interval of about 0.1D to 1.0D, where D is the developer particle size. Developing device according to item 1 of the claim for registration.

Claims

[Scope of utility model registration request]

(1) A developer is transported by a developer carrier that moves relative to the image carrier at a position opposite to the image carrier on which a charge pattern is formed, and the developer that is being transported is attached to the charge pattern for development. The developing device is characterized in that the developer transporting surface of the developer carrier is formed by exposing a conductive surface and a dielectric surface in a halftone dot pattern.

(2) The conductive surface has a diameter of about 0.0 mm, where D is the developer particle size.
The developing device according to claim 1, wherein the developing device is exposed in the form of halftone dots with the dielectric surface with an interval of 1D to 1.0D.