JPS58133159U

JPS58133159U - electrophotographic copying device

Info

Publication number: JPS58133159U
Application number: JP2847482U
Authority: JP
Inventors: 孝司宮城
Original assignee: 富士ゼロックス株式会社
Priority date: 1982-03-02
Filing date: 1982-03-02
Publication date: 1983-09-08

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 the drawing]

第１図ａ　”−ｄは残留トナーがない場合の潜像形成方
法の説明図、第２図ａ　”　ｄは残留トナーがある場合
の潜像形成方法の説明図、第３図は本考案の電子写真複
写装置の概略断面図である。図中符号、１・・・感光体、１ａ：導電性基板；１ｂ・
・・光導電層；１Ｃ・・・絶縁層；２・・・原稿；３・
・・転写後の残留トナー；４・・・極性転換された残留
トナー；５・・・第１帯電器；６・・・第２帯電器；７
・・・光像；８・・・現像器；９・・・転写コロトロン
、１０・・・クリーニング補助部材；１１・・・除電ラ
ンプ。Figure 1 a `` - d is an explanatory diagram of the latent image forming method when there is no residual toner, Figure 2 a '' d is an explanatory diagram of the latent image forming method when there is residual toner, and Figure 3 is an explanatory diagram of the latent image forming method when there is residual toner. FIG. 1 is a schematic cross-sectional view of an electrophotographic copying apparatus. Symbols in the figure: 1... Photoreceptor; 1a: Conductive substrate; 1b.
... Photoconductive layer; 1C... Insulating layer; 2... Original; 3.
... Residual toner after transfer; 4... Residual toner whose polarity has been changed; 5... First charger; 6... Second charger; 7
... Optical image; 8. Developing device; 9. Transfer corotron; 10. Cleaning auxiliary member; 11. Discharge lamp.

Claims

[Scope of utility model registration request]

(1) Using a photoreceptor in which a photoconductive layer and an insulating layer are laminated on a conductive substrate, charges of opposite polarity to the surface potential of the part corresponding to the image area are applied to the surface of the insulating layer in the area corresponding to the non-image area. An electrostatic latent image is formed, and after this latent image is developed with toner,
In an apparatus using an electrophotographic method for transferring and fixing a toner image, (a) an apparatus that exposes the entire surface to light simultaneously or immediately after uniformly charging the surface of a photoconductor;
(b) a device that performs secondary charging with a polarity opposite to that of (a);
(C) A device for imagewise exposure to a photoconductor; (d) a device for developing an electrostatic latent image on a photoconductor; - (e) a device for transferring a toner image on a photoconductor; It consists of a device for transferring and (g) a device for fixing the toner image on the transfer material, and the device for secondary charging (b) keeps the surface potential of the photoreceptor on the same polarity side as the toner to be developed. An electrophotographic copying device characterized in that:

(2) The electrophotographic copying apparatus according to claim 1, further comprising a cleaning auxiliary device that disturbs the residual toner image from the previous step before forming the latent image after transfer.