JPH0369162U

JPH0369162U -

Info

Publication number: JPH0369162U
Application number: JP13085489U
Authority: JP
Priority date: 1989-11-09
Filing date: 1989-11-09
Publication date: 1991-07-09

Description

[Brief explanation of drawings]

第１図及び第２図は、この考案に係わる第１の
現像装置の概念斜視図、第３図及び第４図はこの
考案に係わる第２の現像装置の概念図、第５図は
逆止弁を装着したこの考案に係わる現像装置の概
念斜視図、第６図は第５図の要部拡大斜視図、第
７図及び第８図は逆止弁の作用を示す概念図、第
９図及び第１０図は従来の現像装置を示す概念斜
視図である。２……現像装置本体、２ｂ……開口部、３……
交換式トナーカートリツジ、４……現像ローラ、
１１……シヤツタ、１０，２０……現像装置、１
２，２１……連動手段、２４……画像形成装置本
体。 1 and 2 are conceptual perspective views of a first developing device according to this invention, FIGS. 3 and 4 are conceptual diagrams of a second developing device according to this invention, and FIG. 5 is a back check. FIG. 6 is an enlarged perspective view of the main part of FIG. 5; FIGS. 7 and 8 are conceptual diagrams showing the operation of the check valve; FIG. and FIG. 10 are conceptual perspective views showing a conventional developing device. 2... Developing device main body, 2b... Opening, 3...
Replaceable toner cartridge, 4...Developing roller,
11... Shutter, 10, 20... Developing device, 1
2, 21... interlocking means, 24... image forming apparatus main body.

Claims

[Claims for Utility Model Registration] (1) An opening is formed in the main body of the developing device in which a replaceable toner cartridge is installed, and the toner conveyed from the replaceable toner cartridge is passed through the opening to the developing device. In a developing device of an image forming apparatus that is guided toward a developing roller provided in a developing device main body, a shutter for opening and closing the opening is provided in the opening, and interlocking means is provided between the shutter and the toner cartridge. and when the replaceable toner cartridge cartridge is installed in the developing device main body, the opening is expanded by the shutter via the interlocking means, and the replaceable toner cartridge is removed from the developing device main body. A developing device for an image forming apparatus, characterized in that when the cartridge is removed, the opening is closed by the shutter via the interlocking means. (2) having an opening formed in the developing device main body into which a replaceable toner cartridge is installed, and toner conveyed from the replaceable toner cartridge being disposed in the developing device main body through the opening; In a developing device of an image forming apparatus, the developing device body is supported to be rotatable at a predetermined angle around one end from a reference position of the image forming device body, while being guided toward a developing roller side, A shutter for opening and closing the part is provided, and an interlocking means is disposed between the shutter and the image forming apparatus main body, and when the developing apparatus main body is mounted at a reference position of the image forming apparatus main body, the interlocking means The opening is expanded by the shutter via the shutter, and the opening is closed by the shutter via the interlocking means when the front developing device main body is rotated by a predetermined angle from the reference position. A developing device of an image forming apparatus.