JPS58157342U

JPS58157342U - developing device

Info

Publication number: JPS58157342U
Application number: JP5499682U
Authority: JP
Inventors: 田極　泉
Original assignee: 株式会社リコー
Priority date: 1982-04-17
Filing date: 1982-04-17
Publication date: 1983-10-20

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図は本考案による現像装置の概略構成を示す説明図
で、ドラム状感光体を用いた場合を示し、第２図はベル
ト状感光体を用いた場合の現像部分の拡大図、第３図は
第２図の一部拡大図、第４図、第５図はそれぞれ他の実
施例を示す第２図と同様の図、第６図はさらに他の実施
例を示す現像装置全体構成図、である。１・・・ドラム状感光体、２・・・帯電装置、３・・・
露光　　。装置、４・・・カスケード現像装置、５・；・転写・分
離装置、６・・・クリーニング装置、７・・・磁石、８
・・・ベルト状感光体１．９・・・基体、１０・・・感
光体層、１１・・・対向電極、１２・・・現像剤、１３
・・・強磁性体、１４．１５・・・磁石、１６・・・電
磁石、１７・・・コンベア装置、Ｐ・・・転写紙。FIG. 1 is an explanatory diagram showing the schematic structure of the developing device according to the present invention, in which a drum-shaped photoreceptor is used, FIG. 2 is an enlarged view of the developing part when a belt-shaped photoreceptor is used, and FIG. The figure is a partially enlarged view of FIG. 2, FIGS. 4 and 5 are views similar to FIG. 2 showing other embodiments, and FIG. 6 is an overall configuration diagram of the developing device showing still another embodiment. , is. 1... Drum-shaped photoreceptor, 2... Charging device, 3...
Exposure. Device, 4... Cascade developing device, 5... Transfer/separation device, 6... Cleaning device, 7... Magnet, 8
... Belt-shaped photoreceptor 1.9... Base, 10... Photoreceptor layer, 11... Counter electrode, 12... Developer, 13
...Ferromagnetic material, 14.15... Magnet, 16... Electromagnet, 17... Conveyor device, P... Transfer paper.

Claims

[Scope of utility model registration request]

``A developing device characterized in that a magnetic field generating means is provided on the back side of the photoreceptor in a developing region configured to allow magnetic developer to flow down naturally onto the surface of the photoreceptor carrying a latent image.