JPS6219661U

JPS6219661U -

Info

Publication number: JPS6219661U
Application number: JP10955285U
Authority: JP
Priority date: 1985-07-19
Filing date: 1985-07-19
Publication date: 1987-02-05

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す回転部材の一端
付近の縦断面図、第２図は第１図中の‐線に
よる断面図、第３図は本考案の他の実施例の回転
部材の一端付近の縦断面図、第４図は第３図中の
‐線による断面図、第５図は本考案が適用さ
れる現像装置の一例を示す断面図、第６図はその
羽根車の近傍を示す縦断面図、第７図はその現像
剤タンクの断面図、第８図はその現像装置の外観
を示す斜視図である。５０，５２…回転部材、５１，５３…固定部材
、５４…テフロンシート（低摩擦弾性シート）、
５５…スポンジ（発泡弾性部材、充填材）、５６
，５７…磁石、５８…キヤリア（充填材）。 Fig. 1 is a longitudinal cross-sectional view near one end of a rotating member showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a rotating member of another embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the - line in FIG. 3, FIG. 5 is a cross-sectional view showing an example of a developing device to which the present invention is applied, and FIG. 6 is a cross-sectional view of the impeller. FIG. 7 is a longitudinal sectional view showing the vicinity, FIG. 7 is a sectional view of the developer tank, and FIG. 8 is a perspective view showing the external appearance of the developing device. 50, 52... Rotating member, 51, 53... Fixed member, 54... Teflon sheet (low friction elastic sheet),
55...Sponge (foamed elastic member, filler), 56
, 57... Magnet, 58... Carrier (filling material).

Claims

[Claims for Utility Model Registration] (1) A rotating member and an opposing member that contacts the rotating member over a certain range with a slight gap, and a two-component developer moves around the rotating member, A developing device for an electrophotographic copying machine that changes colors by replacing developer with a different color, characterized in that the gap between the rotating member and the opposing member is filled with a filler that does not interfere with the rotation of the rotating member. A developing device. (2) Utility model registration claim 1, characterized in that the above-mentioned filler is a foamed elastic member with an elastic sheet having a low coefficient of friction pasted on the surface in contact with the rotating member and fixed to the opposing member. Developing device described in section. (3) A magnet is fixed to the opposing member along the gap, and the filler is restrained by the magnet when a carrier containing no toner is inserted into the developing device, moved, and discharged. The developing device according to claim 1, wherein the developing device remains in the gap.