JPH0440247U

JPH0440247U -

Info

Publication number: JPH0440247U
Application number: JP8185190U
Authority: JP
Priority date: 1990-08-01
Filing date: 1990-08-01
Publication date: 1992-04-06

Description

[Brief explanation of the drawing]

第１図は請求項１に記載のこの考案の要部の構
成を示す斜視図、第２図は同平面図、第３図は現
像ローラ・シール部材・薄層化部材・弾性部材の
取付位置関係を示す正面図、第４図は請求項２に
記載のこの考案の薄層化部材を一部省略して示す
正面図、第５図は同考案の要部の構成を示す斜視
図、第６図はこの考案の概略構成図、第７図はこ
の考案が用いられているレーザプリンタの概略構
成図である。第８図、第９図は従来の現像器の現
像ローラ端部の薄層化部材・シール部材の各種取
付関係を示す斜視図、第１０図は従来の現像器に
おける現像ローラと薄層化部材・シール部材の取
付位置関係を示す正面図である。１４……感光体、１７……現像器、４１……現
像ローラ、４２……薄層化部材、４２ａ……ホル
ダ、４３……シール部材、４４……コイルばね（
付勢部材）、４５……案内部材、４７……弾性部
材。 FIG. 1 is a perspective view showing the configuration of the main parts of this invention according to claim 1, FIG. 2 is a plan view thereof, and FIG. 3 is a mounting position of the developing roller, sealing member, thinning member, and elastic member. 4 is a front view showing the thin layered member of the invention according to claim 2 with a part omitted; FIG. 5 is a perspective view showing the structure of the main part of the invention; FIG. FIG. 6 is a schematic diagram of the construction of this invention, and FIG. 7 is a diagram of a schematic construction of a laser printer in which this invention is used. 8 and 9 are perspective views showing various attachment relationships of the thinning member and sealing member at the end of the developing roller in a conventional developing device, and FIG. 10 is a developing roller and thinning member in the conventional developing device. - It is a front view showing the attachment positional relationship of the seal member. 14... Photoreceptor, 17... Developing device, 41... Developing roller, 42... Thinning member, 42a... Holder, 43... Seal member, 44... Coil spring (
(biasing member), 45... guide member, 47... elastic member.

Claims

[Claims for Utility Model Registration] 1. By urging a holder with a biasing member and pressing the thinning member held by the holder against a developing roller, the toner on the developing roller is made into a thin layer. In a developing machine of an electrophotographic apparatus that attaches converted toner to a photoconductor and visualizes a latent image on the photoconductor, a guide member provided at both ends of the holder for guiding the holder, and a guide member for guiding the holder, and the thin layer A developing device comprising: an elastic member that presses against both ends of a converting member and a circumferential surface of the developing roller; and a sealing member that presses the elastic member and the circumferential surface of both ends of the developing roller. 2. Forces the holder with a biasing member to press the thinning member held by the holder against the developing roller, thins the toner on the developing roller, and attaches the thinned toner to the photoreceptor. , in the developing device of an electrophotographic device that visualizes the latent image on the photoreceptor,
The thin layer member has notches at both ends,
an elastic member that is fitted into the notch of the thin layer member, presses the side surface against the thin layer member, and fixes the proximal end surface to the end surface of the notch on the holder side; this elastic member and the thin layer member; and a sealing member that presses against the peripheral surface of both ends of the developing roller.