JPS6330861U

JPS6330861U -

Info

Publication number: JPS6330861U
Application number: JP12535086U
Authority: JP
Priority date: 1986-08-14
Filing date: 1986-08-14
Publication date: 1988-02-29

Description

[Brief explanation of the drawing]

第１図は本考案のクリーニング装置の断面図、
第２図は本考案のクリーニング装置を備えた多色
画像形成装置の構成図、第３図は画像形成頻度と
クリーニングブラシのトナー蓄積量に関する特性
図、第４図はクリーニングブラシと回収ローラと
の接触回転がブラシのトナー回収率に及ぼす影響
の特性図、第５図は多色画像形成装置の作動のタ
イムチヤート、第６図は単色画像形成時の作動の
タイムチヤート、第７図は従来例によるクリーニ
ング装置の要部図である。４０…像担持体、７０…クリーニング装置、７
１…クリーニングブラシ、７２…回収ローラ、７
３…ブレード、７４…枠体、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、７８…圧送スクリユー、８０…クリーニン
グ手段、８１…圧接・解除手段、８２…駆動手段
。 Figure 1 is a sectional view of the cleaning device of the present invention;
Fig. 2 is a block diagram of a multicolor image forming apparatus equipped with the cleaning device of the present invention, Fig. 3 is a characteristic diagram regarding the image forming frequency and the amount of toner accumulated on the cleaning brush, and Fig. 4 is a diagram showing the characteristics of the cleaning brush and collection roller. Characteristic diagram of the influence of contact rotation on the toner recovery rate of the brush. Figure 5 is a time chart of the operation of a multicolor image forming apparatus. Figure 6 is a time chart of operation during monochrome image formation. Figure 7 is a conventional example. FIG. 40... Image carrier, 70... Cleaning device, 7
1...Cleaning brush, 72...Collection roller, 7
3... Blade, 74... Frame body, 75... First bias voltage power supply, 76... Second bias voltage power supply, 77...
Hair body, 78... Pressure feeding screw, 80... Cleaning means, 81... Pressing/releasing means, 82... Driving means.

Claims

[Claims for Utility Model Registration] (1) Applying a bias voltage to conductive bristles implanted on the circumferential surface of a cylindrical body, pressing and rotating the bristles to rub and remove residual toner on the surface of the image carrier. A cleaning means comprising a cleaning brush having a conductive cylindrical body and a collection roller configured to apply a bias voltage to a conductive cylindrical body so as to come into contact with and rotate the cleaning brush to collect toner from the cleaning brush, the cleaning means comprising: In a cleaning device for an image forming apparatus in which a cleaning means is controlled to actuate and deactivate the image carrier in connection with an image forming process, the cleaning device is configured to perform the cleaning after the cleaning device is deactivated from the image carrier. A cleaning device characterized in that contact and rotation between a brush and the collection roller are continued at high speed. (2) The cleaning device according to claim 1, wherein the contact and rotation of the cleaning brush and the collection roller during the high-speed operation is at least twice the speed during image formation.