JPS5813546U - developing device - Google Patents

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) [Abstract] 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図は現像器の縦断側面図、第２図はその正面図、第
３図は従来の現像ローラを現像器に組込んだ状態を示す
一部斜視図、第４図は第３図において、磁性粉末が現像
ローラの端部に盛り上がった状態を示す一部正面図、第
５図は本考案の一実施例を示す現像ローラの斜視図、第
６図は本考案の現像ローラを現像器に組込んだ状態を示
す正面図、第７図はその一部を示す斜視図、第８図は第
７図において、現像ローラに磁性粉末が付着した状態を
示す一部正面図である。 １１・・・円筒状スリーブ、１２・・・円筒状マグネッ
ト、１０・・・現像ローラ、１３・・・磁性リング。Fig. 1 is a vertical side view of the developing device, Fig. 2 is its front view, Fig. 3 is a partial perspective view showing a conventional developing roller installed in the developing device, and Fig. 4 is the same as that shown in Fig. 3. FIG. 5 is a perspective view of a developing roller showing an embodiment of the present invention. FIG. FIG. 7 is a perspective view of a portion of the developing roller, and FIG. 8 is a partial front view of FIG. 7 with magnetic powder attached to the developing roller. DESCRIPTION OF SYMBOLS 11... Cylindrical sleeve, 12... Cylindrical magnet, 10... Developing roller, 13... Magnetic ring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 非磁性材からなる円筒状スリーブの内周に円筒状マグネ
ットが配置されて現像ローラを形成し、上記スリーブと
マグネットとを相対的に回転させて現像を行なう現像装
置において、上記非磁性円筒状スリーブの両端部外周面
に磁性部材を設けたことを特徴とする現像装置。In a developing device in which a cylindrical magnet is disposed on the inner periphery of a cylindrical sleeve made of a non-magnetic material to form a developing roller, and development is performed by relatively rotating the sleeve and the magnet, the non-magnetic cylindrical sleeve A developing device characterized in that a magnetic member is provided on the outer circumferential surface of both ends of the developing device.