JPS608885A - Cleaning device - Google Patents
Cleaning deviceInfo
- Publication number
- JPS608885A JPS608885A JP11610683A JP11610683A JPS608885A JP S608885 A JPS608885 A JP S608885A JP 11610683 A JP11610683 A JP 11610683A JP 11610683 A JP11610683 A JP 11610683A JP S608885 A JPS608885 A JP S608885A
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive body
- gear
- cleaning member
- cleaning
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は清掃部制を感光体表面からリトラクトさせる
機構を具備する清掃装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning device equipped with a mechanism for retracting a cleaning system from the surface of a photoreceptor.
従来、感光体上にトナーを用いてトナー像を形成させる
複写機等においては、感光体上に現像されたそのトナー
像を用紙Ｃ二転写した後、次の現像に備えるべく感光体
上に残ったトナーを清掃するような清掃装置が設けられ
る。ところで、かかる’１ｌＩｔ掃装置は、感光体表面
に接触する清掃部材により感光体の回転に伴ってトナー
の清掃が行なわれるのであるが、その清掃部材を機械停
止時にも常に感光体表面に接触させたままだと感光体に
悪影響を及ぼすこととなる。そこで、これを回避するに
は、機械停止時には清掃部材が感光体表面からリトラク
トするような機構が要求され、一般にはそのリトラクト
をソレノイドを用いて行なう方法が採られるが、この方
法では、清掃部材のりトラクトをソレノイドの動作で行
なうのであるから、そのような専用の動作源となるもの
を別途設ける必要がある。Conventionally, in a copying machine or the like that uses toner to form a toner image on a photoreceptor, after the toner image developed on the photoreceptor is transferred to paper C2, the toner image remains on the photoreceptor in preparation for the next development. A cleaning device is provided to clean the toner. By the way, in such a cleaning device, toner is cleaned as the photoreceptor rotates by a cleaning member that comes into contact with the photoreceptor surface, but the cleaning member is kept in constant contact with the photoreceptor surface even when the machine is stopped. If left untreated, it will have an adverse effect on the photoreceptor. Therefore, in order to avoid this, a mechanism is required that retracts the cleaning member from the surface of the photoreceptor when the machine is stopped.Generally, a method is adopted in which this retraction is performed using a solenoid. Since the glue tract is performed by the operation of a solenoid, it is necessary to separately provide a dedicated operation source.
この発明は上記のようなソレノイド等専用の動作源を用
いず、感光体を駆動する駆動源の動作を活用して清掃部
材のりトラクトを行なえるようにすることを目的とする
ものである。It is an object of the present invention to make it possible to tract a cleaning member by utilizing the operation of a drive source that drives a photoreceptor, without using a dedicated operation source such as a solenoid as described above.
この発明は、上記目的を達成するため、感光体を駆動す
る駆動源の逆回転を利用し、専用の動作源を付加するこ
となく清掃部材をリトラクトさせるようにしたものであ
る。In order to achieve the above object, the present invention makes use of reverse rotation of a drive source that drives a photoreceptor to retract a cleaning member without adding a dedicated operation source.
以下、この発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図及び第２図はこの発明の一実施例を示すもので、
複写機のドラム型感光体の清掃を行なうのに適用した場
合における複写サイクル中と複写ザイクル終了後の各状
態を示す。FIG. 1 and FIG. 2 show an embodiment of this invention.
Each state during a copying cycle and after the completion of a copying cycle is shown when applied to cleaning a drum-type photoreceptor of a copying machine.
同各図において、（１）は感光体ドラム、（２）は感光
体ドラム（１）を回転させるドラムギアで、ドラムギア
（２）は、感光体ドラム（１）を駆動させる駆動源とし
てのモータ（図示せず）によって複写動作時は第１図の
矢印ａの如゛く時泪方向に回転し、これにより感光体ド
ラムｆ］、）も図中時計方向に回転せしめられる。（３
）は清掃装置の筺体、（４）、（５）は上記感光体ドラ
ム（１）を清掃するための清掃部材、（６）、（７）は
これら清掃部４シ（４）、（５）を夫々取付けた支持体
で、清掃部材（４）用の支持体（６）は回転軸（８）に
収イ」けられると共に、その先端部にはウェイト（９）
が取付けられていて、ウェイト（９）により図中反時計
方向への回動力が付与されている。また清掃部材（５）
用の支持体（７）は回転軸（ｌに取付けられると共に、
上記清掃装置の筐体（８）の壁面の段部（８ａ）との間
にスプリングαηが設けられていて、図中時計方向に付
勢されており、かつそのアーム部（７ａ）が上記支持体
（６）の下方に延びた脚部（６ａ）と係合するようにな
っている。In each figure, (1) is a photoreceptor drum, (2) is a drum gear that rotates the photoreceptor drum (1), and the drum gear (2) is a motor (as a drive source that drives the photoreceptor drum (1)). During the copying operation, the photosensitive drums f], ) are also rotated clockwise in the figure, as indicated by the arrow a in FIG. (3
) is the housing of the cleaning device, (4) and (5) are cleaning members for cleaning the photosensitive drum (1), and (6) and (7) are these cleaning parts 4 (4) and (5). The support (6) for the cleaning member (4) is housed in the rotating shaft (8), and a weight (9) is attached to the tip of the support (6) for the cleaning member (4).
is attached, and a weight (9) applies rotational force in the counterclockwise direction in the figure. Also cleaning member (5)
The support body (7) for the
A spring αη is provided between the step part (8a) on the wall of the casing (8) of the cleaning device, and is biased clockwise in the figure, and its arm part (7a) supports the above-mentioned support. It is adapted to engage with a leg (6a) extending downwardly of the body (6).
（６）は前記ドラムギア（２）と噛合したギアで、この
ギアαつは複写サイクル中は第１図の矢印すで示すよう
にドラムギア（２）の回転、従って感光体ドラム（１）
の回転に伴って反時計方向へ回転するが、図示しないワ
ンウェイクラッチの働きによって前述した回転軸（８）
にはギアαつの回転が伝達しないようにされている。従
って、複写サイクル中においては、ドラムギア（２）の
回転に伴ってギアαつは回転するもその回転は回転軸（
８）へは伝わらず、その回転軸（８）へ取付けた前記支
持体（６）並びに回転軸叫へ数句けた支持体（７）は、
ウェイ目９）及びスプリング（１１）だけの回動力を受
けその夫々の清掃部材（４）、（５）を？、１図に示す
ように感光体ドラム（１）の表面へ圧接せしめ、清掃装
置の筐体（３）の下部に設けられた容器（１３内へ回収
トナー０１１が集められるようになっている。(6) is a gear that meshes with the drum gear (2). During the copying cycle, this gear α controls the rotation of the drum gear (2) as shown by the arrow in FIG.
The rotating shaft (8) rotates counterclockwise with the rotation of the rotating shaft (8), but due to the action of a one-way clutch (not shown),
The rotation of gear α is prevented from being transmitted to. Therefore, during the copying cycle, the gear α rotates with the rotation of the drum gear (2), but the rotation is limited to the rotation axis (
8), but the support (6) attached to the rotation shaft (8) and the support (7) attached several times to the rotation shaft are:
The cleaning members (4) and (5) receive the rotational force of only the way number 9) and the spring (11)? As shown in FIG. 1, the recovered toner 011 is brought into pressure contact with the surface of the photoreceptor drum (1) and collected in a container (13) provided at the bottom of the housing (3) of the cleaning device.
上記構成によれば、まず、複写サイクル中においては、
清掃部材（４）、（５）は感光体ドラム（１）の表面上
にクエイト（９）及びスプリング０υの力によって圧接
されており、感光体ドラム（１）の回転に伴ってその表
面から残留トナーをかき落すので、感光体ドラム（１１
の清掃を行なうことができる。この状態においては、感
光体ドラム（１）を回転させるドラムギア（２）は矢印
ａのように時計方向に回転し、これによりギア←つは矢
印すのように反時計方向に回転するが、既述した如くワ
ンウェイクラッチによって同転軸（８）にはそのギア０
望の回転は伝わらず、第１図に示す状態で感光体ドラム
（１）の回転中には清掃が行なわれることになる。According to the above configuration, first, during the copy cycle,
The cleaning members (4) and (5) are pressed onto the surface of the photoreceptor drum (1) by a force of a quayte (9) and a spring 0υ, and as the photoreceptor drum (1) rotates, the cleaning members (4) and (5) remove residue from the surface of the photoreceptor drum (1). To scrape off the toner, remove the photoreceptor drum (11
can be cleaned. In this state, the drum gear (2) that rotates the photoreceptor drum (1) rotates clockwise as shown by arrow a, and the gear ← rotates counterclockwise as shown by arrow a. As mentioned above, the gear 0 is connected to the same rotating shaft (8) by the one-way clutch.
The desired rotation is not transmitted, and cleaning is performed while the photosensitive drum (1) is rotating in the state shown in FIG.
しかし、次（二、複写サイクルが終了すると、第２図に
示すように各清掃部材（４）、（５）は感光体ドラム（
１）の表面からリトラクトすることになる。すなわち、
複写サイクルが終了すると、その感光体ドラム（１）を
駆動させるモータ（図示せず）の逆転（通常感光体ドラ
ム（１）表面で１０ｒｒｒｎ前後）によって、ドラムギ
ア（２）が矢印Ｃのように反時計方向に回転し、ギアα
路もこれに応じて矢印ｄのように時計方向に回転するか
ら、このギア０４及び前述したワンウェイクラッチを介
して、支持体（６）が矢印ｅのように回転軸（８）を中
心として時計方向に回転せしめられ、またこれに伴って
支持体（６）の脚部（６ａ）により支持体（６）がスプ
リング０復に抗して矢印ｆのように反時計方向に回転せ
しめられることになる。従って、感光体ドラム（１）を
駆動させるモータの複写終了時の逆回転を利用して、各
支持体（６）、（７）を回転軸（８）、（１０を中心と
して矢印ｅ、ｆ方回に回転させることにより清掃部材（
４）、（５）を感光体ドラム（１）の表面からリトラク
トさせることができる。このため、上記のように清掃部
材（４）コ（５）をリトラクトさせる機構を機械停止時
に動作させるに当って、それ専用の動作源を別途設ける
ことがなく、感光体ドラム（１）を駆動するモータの動
作を活用して清掃部材（４）、（５）のりトラクトを行
なうことができる。However, when the next (2) copying cycle is completed, each cleaning member (4), (5) is removed from the photoreceptor drum (2) as shown in FIG.
1) will be retracted from the surface. That is,
When the copying cycle is completed, the drum gear (2) is reversed as shown by arrow C by the reversal of the motor (not shown) that drives the photoreceptor drum (1) (usually around 10rrrn on the surface of the photoreceptor drum (1)). Rotate clockwise, gear α
Since the shaft also rotates clockwise as shown by arrow d, the support body (6) rotates clockwise around the rotating shaft (8) as shown by arrow e via this gear 04 and the one-way clutch mentioned above. The legs (6a) of the support (6) rotate the support (6) in the counterclockwise direction as shown by the arrow f against the spring zero return. Become. Therefore, by utilizing the reverse rotation of the motor that drives the photoreceptor drum (1) at the end of copying, the respective supports (6) and (7) are rotated around the rotation axes (8) and (10) by the arrows e and f. By rotating the cleaning member (
4) and (5) can be retracted from the surface of the photoreceptor drum (1). Therefore, when operating the mechanism for retracting the cleaning members (4) and (5) as described above when the machine is stopped, there is no need to separately provide a dedicated operation source, and the photosensitive drum (1) is driven. The cleaning members (4) and (5) can be tracted by utilizing the operation of the motor.
以上のように、この発明は、清掃部材のりトラクトな感
光体の駆動源の逆転を利用して行なうことができるので
、専用の動作源を新たに設けることがなく、ソレノイド
等を用いずに簡素化することができると共に、安価でが
っ確実なりトラクト機構を具備した清掃装置を構成する
ことができる等の特長を有する。As described above, this invention can perform the cleaning by using the reversal of the drive source of the photoconductor, which allows the cleaning member to be easily removed.Therefore, there is no need to newly provide a dedicated operation source, and the cleaning is simple without using a solenoid or the like. It has the advantage that it is possible to construct a cleaning device equipped with a tract mechanism that is inexpensive and reliable.
第１図はこの発明の一実施例を示す構成図で、複写サイ
クル中の状態を示す図、第２図はその複写サイクル終了
後の状態を示す作用説明図である。
符号説明FIG. 1 is a block diagram showing an embodiment of the present invention, and is a diagram showing the state during a copying cycle, and FIG. 2 is an explanatory diagram showing the operation after the copying cycle is completed. Code explanation
Claims (1)
する駆動源の逆転を利用して上記清掃部材を感光体の表
面からリトラクトさせる機構とを備えたことを特徴とす
る清掃装置。A cleaning device comprising: a cleaning member that cleans the surface of a photoreceptor; and a mechanism that retracts the cleaning member from the surface of the photoreceptor by utilizing reversal of a drive source that drives the photoreceptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11610683A JPS608885A (en) | 1983-06-29 | 1983-06-29 | Cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11610683A JPS608885A (en) | 1983-06-29 | 1983-06-29 | Cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS608885A true JPS608885A (en) | 1985-01-17 |
Family
ID=14678841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11610683A Pending JPS608885A (en) | 1983-06-29 | 1983-06-29 | Cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS608885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5028966A (en) * | 1988-11-10 | 1991-07-02 | Mita Industrial Co., Ltd. | Image-forming machine |
-
1983
- 1983-06-29 JP JP11610683A patent/JPS608885A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5028966A (en) * | 1988-11-10 | 1991-07-02 | Mita Industrial Co., Ltd. | Image-forming machine |
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