JPH0354971U

JPH0354971U -

Info

Publication number: JPH0354971U
Application number: JP11610189U
Authority: JP
Priority date: 1989-10-02
Filing date: 1989-10-02
Publication date: 1991-05-28

Description

[Brief explanation of the drawing]

第１図はこの考案の要部となるクリーニングブ
レード及びその周辺とそれを駆動制御する制御系
を合わせて示す概略構成図、第２図は同じくその
クリーニングブレードを装着した電子写真装置と
しての複写機を示す全体構成図、第３図は第１図
のブレード制御手段６０が実行するクリーニング
ブレード移動処理に関するサブルーチンを示すフ
ロー図、第４図は感光体上に実際に付着した残留
物の付着量に応じでクリーニングブレードを摺接
させるようにした他の実施例を示す第１図と同様
な概略構成図、第５図は第４図のブレード制御手
段７０が実行するクリーニングブレード移動処理
に関するサブルーチンを示すフロー図である。１……複写機本体、５……感光体ベルト、５ａ
……感光面、８……現像装置、１６……クリーニ
ングユニツト、１６ａ……マグネツトブラシ、５
２……クリーニングブレード、５６……メインス
イツチ、６０，７０……ブレード制御手段、７１
……センサユニツト（付着量検出手段）。 Figure 1 is a schematic configuration diagram showing the cleaning blade, which is the main part of this invention, its surroundings, and the control system that drives and controls it, and Figure 2 is a copying machine as an electrophotographic device equipped with the same cleaning blade. FIG. 3 is a flowchart showing a subroutine related to the cleaning blade movement process executed by the blade control means 60 of FIG. 1, and FIG. FIG. 5 is a schematic configuration diagram similar to FIG. 1 showing another embodiment in which the cleaning blade is brought into sliding contact with each other. FIG. 5 shows a subroutine regarding the cleaning blade movement process executed by the blade control means 70 of FIG. It is a flow diagram. 1... Copying machine main body, 5... Photoreceptor belt, 5a
...Photosensitive surface, 8...Developing device, 16...Cleaning unit, 16a...Magnetic brush, 5
2... Cleaning blade, 56... Main switch, 60, 70... Blade control means, 71
...Sensor unit (adhesion amount detection means).

Claims

[Claims for Utility Model Registration] 1. A magnetic brush that uses magnetic force to remove toner, etc. remaining on the photoreceptor after transferring the toner image on the photoreceptor developed by a developing device to transfer paper. In the cleaning device for an electrophotographic apparatus, a cleaning blade is provided at a position from the downstream side of the magnetic brush in the moving direction of the photoreceptor to just before the developing device, the cleaning blade having a blade tip capable of approaching and separating from the photoreceptor. and each time the electrophotographic apparatus exceeds a predetermined number of times of image formation and each time the main switch of the electrophotographic apparatus is turned on, the photoreceptor rotates at least once around the cleaning blade. 1. A cleaning device for an electrophotographic apparatus, comprising a blade control means for controlling a blade to slide into contact with a photoconductor with a predetermined pressure. 2. A cleaning device for an electrophotographic device equipped with a magnetic brush that uses magnetic force to remove toner, etc. remaining on the photoreceptor after transferring the toner image on the photoreceptor developed by the developing device to transfer paper. A cleaning blade is provided at a position from the downstream side of the magnetic brush in the direction of movement of the photoreceptor to just before the developing device, and a cleaning blade whose blade tip can come into contact with and separate from the photoreceptor; an adhering amount detecting means for detecting the amount of adhering residue such as paper powder using a photo sensor; A cleaning device for an electrophotographic apparatus, comprising: a blade control means for controlling the blade to slide into contact with the photoreceptor with a predetermined pressure until the pressure becomes equal to or less than a predetermined value.