JPS5828864U

JPS5828864U - developing device

Info

Publication number: JPS5828864U
Application number: JP12307281U
Authority: JP
Inventors: 板谷　敬二
Original assignee: 株式会社東芝
Priority date: 1981-08-21
Filing date: 1981-08-21
Publication date: 1983-02-24

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

【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１例を示す概略説明図、第２
図はこの考案の現像装置の一実施例の要部を示す斜視図
、第３図は同装置の横断面図、第４図は同装置の現像ロ
ーラの横断面図、第５図は現像装置の非磁性スリーブの
回転タイミングを示すタイミングチャートである。１０・・・現像装置、１１・・・本体フレーム、２１・
・・ドクターブレード、２２・・・現像ローラ、２３・
・・非磁性スリーブ、２４・・・マグネットローラ、４
１・・・複写機、４７・・・調整ローラ、５０・・・剥
離ブレード。Fig. 1 is a schematic explanatory diagram showing an example of a conventional developing device;
3 is a cross-sectional view of the developing device, FIG. 4 is a cross-sectional view of the developing roller of the device, and FIG. 5 is the developing device. 3 is a timing chart showing the rotation timing of the non-magnetic sleeve of FIG. DESCRIPTION OF SYMBOLS 10... Developing device, 11... Body frame, 21.
...Doctor blade, 22...Developing roller, 23.
...Non-magnetic sleeve, 24...Magnetic roller, 4
DESCRIPTION OF SYMBOLS 1... Copying machine, 47... Adjustment roller, 50... Peeling blade.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）像担持体の静電潜像番磁性現像剤を使用して現像
するものにおいて、複数の磁石を有する磁気発生手段と
、この磁気発生手段の外囲部を囲むように配置された移
動部材と、この磁気発生手段と移動部材との少なくとも
一方を正回転および逆回転させる駆動部材とを具備し、
現像時に、前記駆動部材を正回転させて現像剤を像担持
体側に搬送させるとともに非現像時に、前記駆動部材を
逆回転させて像担持体と反対方向に現像剤を搬送させる
ようにしたことを特徴とする現像装置。(1) Electrostatic latent image number of image carrier In an image carrier that is developed using a magnetic developer, a magnetism generating means having a plurality of magnets, and a movable member arranged so as to surround the outer part of the magnetism generating means a member, and a driving member that rotates at least one of the magnetism generating means and the moving member in forward and reverse rotation,
During development, the driving member is rotated forward to transport the developer toward the image carrier, and during non-development, the driving member is rotated reversely to transport the developer in the opposite direction to the image carrier. Characteristic developing device.

（２）前記駆動部材が、移動部材を正回転および逆回転
させて磁性現像剤を搬送するようになっていることを特
徴とする実用新案登録請求の範囲第１項に記載の現像装
置。(2) The developing device according to claim 1, wherein the driving member transports the magnetic developer by rotating the moving member forward and backward.

（３）前記駆動部材が、磁界発生手段を正回転および逆
回転させて磁性現像剤を搬送するようになっていること
を特徴とする実用新案登録請求の範囲第１項又は第２項
に記載の現像装置。(3) The driving member is configured to transport the magnetic developer by rotating the magnetic field generating means forward and backward, as set forth in claim 1 or 2 of the utility model registration claim. developing device.