JPS63177863U

JPS63177863U -

Info

Publication number: JPS63177863U
Application number: JP6745587U
Authority: JP
Priority date: 1987-05-07
Filing date: 1987-05-07
Publication date: 1988-11-17
Anticipated expiration: 2002-05-07
Also published as: JPH0720683Y2

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案の実施例を示しており
、第１図は第一実施例に係る現像装置の断面図、
第２図は組立て前の現像装置の斜視図を夫々示し
、また第３図は第二実施例に係る現像装置の断面
図、第４図は従来の現像装置の断面図である。（符号説明）、１……上部ハウジング、２……
下部ハウジング、３……装置本体、４……開口部
、５……現像ローラ、６……層形成部材、１１…
…保持兼補強部材、１２……通気性密閉部材。 1 to 3 show an embodiment of the present invention, and FIG. 1 is a sectional view of a developing device according to the first embodiment;
FIG. 2 shows a perspective view of the developing device before assembly, FIG. 3 is a sectional view of the developing device according to the second embodiment, and FIG. 4 is a sectional view of the conventional developing device. (Explanation of symbols), 1... Upper housing, 2...
Lower housing, 3... device main body, 4... opening, 5... developing roller, 6... layer forming member, 11...
...Holding/reinforcing member, 12...Breathable sealing member.

Claims

[Claims for Utility Model Registration] (1) A device main body consisting of an upper housing and a lower housing fitted together, a developing roller disposed inside the device main body, and a developing roller whose proximal end is attached to the upper housing. a layer forming member whose distal end side is placed in contact with the outer circumferential surface of the developing roller to form a thin layer of developer on the outer circumferential surface and to triboelectrically charge the developer, the layer forming member carrying the latent image from the developing roller; The image is developed by flying it toward the body, and the inside of the main body of the apparatus includes at least the above-mentioned housings,
In a one-component developing device that is sealed with a developing roller and a layer forming member, the upper housing or the lower housing is provided with a holding and reinforcing member for attaching the layer forming member along the length thereof, A developing device characterized in that a sealing member for sealing the inside of the main body of the device is disposed in the fitting portion of each of the housings, and a part of the sealing member is made of a breathable material. (2) The developing device according to claim 1, wherein the breathable material is a urethane foam having an open cell diameter smaller than the particle diameter of the developer.