JPH0229059U

JPH0229059U -

Info

Publication number: JPH0229059U
Application number: JP10719888U
Authority: JP
Priority date: 1988-08-11
Filing date: 1988-08-11
Publication date: 1990-02-23

Description

[Brief explanation of drawings]

第１図は画像形成装置の一例の静電写真複写機
における作像部の概略縦断側面図、第２図は一部
を破断したトナー排出機構の詳細図、第３図はト
ナー排出機構の別実施例を示す詳細図、第４図は
従来例のトナー排出機構の詳細図である。８……クリーニングケース、１２……螺旋軸、
１３……トナー排出筒、１４……軸受、１６……
トナー流下筒、１９……小径段部、１９ａ，２０
……覆い部材（段部端面、孔あき円板）、ｌ……
隙間、Ｓ……感光体表面。 Fig. 1 is a schematic longitudinal sectional side view of an image forming section in an electrophotographic copying machine, which is an example of an image forming apparatus, Fig. 2 is a partially cutaway detailed view of the toner ejection mechanism, and Fig. 3 is an illustration of the toner ejection mechanism. FIG. 4 is a detailed view of a conventional toner discharge mechanism. 8...Cleaning case, 12...Spiral shaft,
13...Toner discharge cylinder, 14...Bearing, 16...
Toner flow tube, 19...Small diameter stepped portion, 19a, 20
...Covering member (step end face, perforated disc), l...
Gap, S...Photoconductor surface.

Claims

[Claims for Utility Model Registration] (1) A toner flow tube is connected to the lower part of one end of the toner discharge tube connected to the cleaning case, and the toner peeled and collected from the surface of the photoreceptor is transferred to the toner flow tube. In a toner discharge mechanism of a cleaning device, a toner discharge mechanism of a cleaning device is provided, wherein a helical shaft for conveying toward the toner discharge tube is built in the toner discharge tube, and one end side of the helical shaft is supported by a bearing attached to one end side of the toner discharge tube, A toner discharge mechanism for a cleaning device, wherein a gap between one end of the helical shaft and the bearing is covered by a cover member connected to the helical shaft. (2) forming a small diameter stepped portion on one end side of the helical shaft;
The toner discharge mechanism of a cleaning device according to claim 1, wherein the cover member is constituted by an end face of the small diameter stepped portion. (3) The toner discharge mechanism of the cleaning device according to claim (1), wherein the cover member comprises a perforated disc, and the perforated disc is joined to one end side of the helical shaft.