JPH01149662U

JPH01149662U -

Info

Publication number: JPH01149662U
Application number: JP4638988U
Authority: JP
Priority date: 1988-04-06
Filing date: 1988-04-06
Publication date: 1989-10-17

Description

[Brief explanation of the drawing]

第１図は本考案に係る電子写真装置の現像器の
実施例の要部を示す外観斜視図、第２図は他の実
施例の要部を示す平面図、第３図〜第６図は従来
の現像器を示し、第３図はトナーに圧縮力が作用
することを説明するための図、第４図は空洞化現
象を説明するための図、第５図は弾性部材が設け
られていない場合の縦断側面図及び第６図は弾性
部材を設けた場合の要部を示す図である。１……現像器の本体、２……回転軸、３……攪
拌羽根、５……現像ローラ、１０……トナー検出
手段、１１……検出面、２０……弾性部材、２１
……基端部、２２……先端部、３０……穴。 FIG. 1 is an external perspective view showing the main parts of an embodiment of a developing device for an electrophotographic apparatus according to the present invention, FIG. 2 is a plan view showing the main parts of another embodiment, and FIGS. 3 to 6 are A conventional developing device is shown; FIG. 3 is a diagram for explaining that compressive force is applied to toner, FIG. 4 is a diagram for explaining the cavitation phenomenon, and FIG. 5 is a diagram for explaining the phenomenon in which an elastic member is provided. A vertical side view without the elastic member and FIG. 6 are views showing the main parts when an elastic member is provided. DESCRIPTION OF SYMBOLS 1... Body of developer, 2... Rotating shaft, 3... Stirring blade, 5... Developing roller, 10... Toner detection means, 11... Detection surface, 20... Elastic member, 21
...base end, 22...distal end, 30...hole.

Claims

[Scope of Claim for Utility Model Registration] The main body is provided with a developing roller, an agitation blade driven by a rotating shaft for agitating the toner stored therein, and a toner detection means that interacts with the toner to detect the toner level. In a developing device of an electrophotographic apparatus, an elastic member having a base end fixed to the stirring blade and a distal end movable intermittently in contact with a detection surface of the toner detection means as the rotation shaft rotates. A developing device for an electrophotographic apparatus, characterized in that the agitating blade is provided with a hole penetrating in the thickness direction at a position close to the elastic member.