JPS6311668U

JPS6311668U -

Info

Publication number: JPS6311668U
Application number: JP10610886U
Authority: JP
Priority date: 1986-07-09
Filing date: 1986-07-09
Publication date: 1988-01-26

Description

[Brief explanation of the drawing]

第１図は本考案のクリーニング装置を含む像担
持体周辺の構成図、第２図は複写機使用頻度とト
ナー蓄積量を示す特性図、第３図はトナー蓄積量
とクリーニング性の関係を示す特性図、第４図は
回収ローラ空回し時間とトナー回収率の関係を示
す特性図、第５図は複写機使用頻度とトナー蓄積
量を示す特性図、第６図は従来のクリーニング装
置の構成図。１０……像担持体、７０……クリーニング装置
、７１……クリーニングブラシ、７２……第１回
収ローラ、７３……ブレード、７４……第２回収
ローラ、７５……第１バイアス電圧電源、７６…
…第２バイアス電圧電源、７７……毛体、８０…
…枠体。 Fig. 1 is a diagram showing the configuration around the image carrier including the cleaning device of the present invention, Fig. 2 is a characteristic diagram showing the frequency of use of the copying machine and the amount of accumulated toner, and Fig. 3 shows the relationship between the amount of accumulated toner and cleaning performance. Figure 4 is a characteristic diagram showing the relationship between collection roller idling time and toner recovery rate, Figure 5 is a characteristic diagram showing copying machine usage frequency and toner accumulation amount, and Figure 6 is the configuration of a conventional cleaning device. figure. DESCRIPTION OF SYMBOLS 10... Image carrier, 70... Cleaning device, 71... Cleaning brush, 72... First collecting roller, 73... Blade, 74... Second collecting roller, 75... First bias voltage power supply, 76 …
...Second bias voltage power supply, 77... Hair body, 80...
...frame body.

Claims

[Claims for Utility Model Registration] (1) A bias voltage is applied to a rotatable conductive bristles, and the conductive bristles are rubbed against an image carrier to form a residue on the surface of the image carrier. A cleaning device for an image forming apparatus, comprising a cleaning brush that removes toner, and a collection roller that applies a bias voltage to a rotatable conductive roller and brings it into contact with the cleaning brush to collect toner from the cleaning brush. , A cleaning device characterized in that a plurality of the collection rollers are provided. (2) The plurality of collection rollers are rotated in order from the vicinity of the rubbing portion to the downstream side in the rotational direction of the cleaning brush, and the first collection roller is rotated in the opposite direction at the contact portion with the cleaning brush;
2. The cleaning device according to claim 1, wherein the collection rollers other than the collection roller are rotated in the same direction at the contact portion with the cleaning brush.