JPS6074155U

JPS6074155U - developing device

Info

Publication number: JPS6074155U
Application number: JP16456883U
Authority: JP
Inventors: 筧　義雄
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1983-10-26
Filing date: 1983-10-26
Publication date: 1985-05-24

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図及び第２図は従来の装置を示し第１図はその断面
図、第２図はそのマグネットローラの一部省略断面図、
第３図はこの考案の一実施例を示し、イはそのマグネッ
トローラの一部省略側面図、口はそのマグネットローラ
の一部省略断面図、第４図はこの考案の他の変形例を示
す一部省略斜視図である。１０・・・マグネット、１１・・・非磁性円筒状スリー
ブ、１２・・・マグネットローラ、１３・・・筐体、１
４・・・現像剤、１６・・・磁気ブラシ、１８・・・磁
性部材。1 and 2 show a conventional device, FIG. 1 is a sectional view thereof, and FIG. 2 is a partially omitted sectional view of the magnet roller.
Fig. 3 shows an embodiment of this invention, A is a partially omitted side view of the magnetic roller, Figure 4 is a partially omitted sectional view of the magnetic roller, and Fig. 4 shows another modification of this invention. It is a partially omitted perspective view. DESCRIPTION OF SYMBOLS 10... Magnet, 11... Non-magnetic cylindrical sleeve, 12... Magnet roller, 13... Housing, 1
4...Developer, 16...Magnetic brush, 18...Magnetic member.

Claims

[Claims for Utility Model Registration] 1. A magnet and a non-magnetic cylindrical sleeve surrounding the magnet, and a developer is carried on the surface of the non-magnetic cylindrical sleeve to develop a latent image on an image support. In the developing device, a band-shaped magnetic member is provided with a gap in the non-magnetic cylindrical sleeve, and the developer is magnetically restrained on both sides of the non-magnetic cylindrical sleeve. Device. 2. The developing device according to claim 1, wherein the magnetic member concentrically surrounds both sides of the non-magnetic cylindrical sleeve. 3. The width of the magnetic member is approximately equal to the width from the end of the non-magnetic cylindrical sleeve to the end of the magnet, and the gap between the non-magnetic cylindrical sleeve and the magnetic member is higher than the thickness of the developer supported on the surface. A developing device according to claim 1 or 2 of the utility model registration claim.