JPH0285448U

JPH0285448U -

Info

Publication number: JPH0285448U
Application number: JP16472588U
Authority: JP
Priority date: 1988-12-19
Filing date: 1988-12-19
Publication date: 1990-07-04

Description

[Brief explanation of the drawing]

第１図ａはこの考案の一実施例の正面図、第１
図ｂはその側面図、第２図はその使用状態を説明
する説明図、第３図は第１図の要部の拡大図、第
４図、第５図および第６図は突条部の変形例の説
明図、第７図は従来例の使用状態説明図である。２……現像ローラ、６……トナー、８……層形
成部材、９……基材、１０……圧接部材、１１…
…突条部。 Figure 1a is a front view of one embodiment of this invention;
Figure b is a side view of the same, Figure 2 is an explanatory diagram explaining its usage, Figure 3 is an enlarged view of the main part of Figure 1, and Figures 4, 5, and 6 are of the protrusions. An explanatory diagram of a modified example, and FIG. 7 is an explanatory diagram of a conventional example in use. 2... Developing roller, 6... Toner, 8... Layer forming member, 9... Base material, 10... Pressing member, 11...
...projection.

Claims

[Scope of utility model registration request]

A plate-like base material with spring elasticity, one end of which is formed in the fixing part along the longitudinal direction, and a pressure-welded material with rubber elasticity, which is formed with a predetermined width along the longitudinal direction on the end face of the other end of this plate-like base material. one end along the longitudinal direction of the pressing member is pressed against the outer circumferential surface of the developing roller by utilizing the spring elasticity of the plate-shaped base material, and the developer supplied in a layer on the outer circumferential surface of the developing roller is A layer forming member for triboelectrically charging and at the same time appropriately regulating the thickness of the developer layer, which is supplied to the developing roller at a portion of the plate-shaped base material on the other end side of the pressing member or near the other end side. What is claimed is: 1. A layer forming member characterized in that a protrusion is provided along the longitudinal direction of the developing roller to scrape off an excess amount of the developer from the outer peripheral surface of the developing roller.