JPH03243977A - Cleaning method - Google Patents

Cleaning method

Info

Publication number
JPH03243977A
JPH03243977A JP3980090A JP3980090A JPH03243977A JP H03243977 A JPH03243977 A JP H03243977A JP 3980090 A JP3980090 A JP 3980090A JP 3980090 A JP3980090 A JP 3980090A JP H03243977 A JPH03243977 A JP H03243977A
Authority
JP
Japan
Prior art keywords
image carrier
cleaning blade
cleaning
contact
rotated
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
Application number
JP3980090A
Other languages
Japanese (ja)
Inventor
Makoto Arai
誠 荒井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3980090A priority Critical patent/JPH03243977A/en
Publication of JPH03243977A publication Critical patent/JPH03243977A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a heavy load from being added to an image carrier when it is reversely rotated and to prevent an attached substance from splashing to the outside of a cleaning device by releasing that a cleaning blade abuts on the image carrier when the image carrier is reversely rotated. CONSTITUTION:A photosensitive drum 1 is reversely rotated in a direction shown by an arrow B which is opposed to an arrow A when copying is finished, and the blade 3 is separated from the drum 1 simultaneously with the reverse rotation. At this time, since the pressing force to the drum 1 is eliminated, the drum 1 can be easily rotated. Next, when the drum 1 is rotated in the direction shown by the arrow A again, the blade 3 is made to abut on the drum 1 at the same time or immediately thereafter. Thus, the heavy load is not added to the image carrier when it is reversely rotated and the attached substance is effectively eliminated.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、静電電子写真プロセスを利用した複写機、レ
ーザープリンタ、ファクシミリ等の画像形成装置におけ
るクリーニング方法に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cleaning method for an image forming apparatus such as a copying machine, a laser printer, or a facsimile machine using an electrostatic electrophotographic process.

従米技査 上記画像形成装置において、転写後の像担持体。Technical inspector In the above image forming apparatus, an image carrier after transfer.

例えば感光体ドラムに残留したトナーをクリーニングブ
レードを用いるクリーニング装置で清掃することは広く
採用されている。この種のクリーニング装置は、クリー
ニングブレードのエツジ部に紙粉やトナー等が付着して
溜ってしまうことが多々生ずる。このようなトナー等の
付着は、そのまま放置しているとクリーニングブレード
の均一な当接が不可能となり、画像に白スジ、黒スジ等
の異常が現われる。
For example, it is widely used to clean the toner remaining on the photoreceptor drum with a cleaning device using a cleaning blade. In this type of cleaning device, paper dust, toner, etc. often adhere to and accumulate on the edge of the cleaning blade. If such adhesion of toner or the like is left as it is, it becomes impossible for the cleaning blade to contact the cleaning blade uniformly, and abnormalities such as white streaks and black streaks appear on the image.

そこで、実開昭50−62537号公報、特開昭63−
278087号公報及び同64−9378号公報にはク
リーニングブレードのエツジ部に溜った付着物を感光体
を逆回転させることで取り除くことが開示されている。
Therefore, Japanese Unexamined Utility Model Publication No. 50-62537, Japanese Unexamined Patent Publication No. 63-
No. 278087 and No. 64-9378 disclose that deposits accumulated on the edge of a cleaning blade can be removed by rotating the photoreceptor in the opposite direction.

発明が解 しようとする ところが、上記した付着物除去方法はクリーニングブレ
ードが加圧状態で感光体ドラムを逆回転させていたため
、大きな負荷がかかってしまう。
What the invention attempts to solve is that in the above method for removing deposits, the cleaning blade rotates the photoreceptor drum in the reverse direction under pressure, which imposes a large load on the cleaning blade.

従って、感光体ドラムの逆回転駆動装置に大きな回転力
が出力できるように構成しなければならず、その構造が
複雑になるという問題があった。
Therefore, the photoreceptor drum reverse rotation driving device must be configured to be able to output a large rotational force, resulting in a problem that the structure becomes complicated.

本発明は、上述した従来の問題を解消し、像担持体の逆
回転時に大きな負荷がかからず、しかも付着物の除去効
果の大きいクリーニング方法を提供することを目的とす
る。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems, and to provide a cleaning method that does not apply a large load when an image carrier is rotated in reverse, and is highly effective in removing deposits.

課 を  するための 上記目的を達成する本発明の構成は、次の如くである。for doing the section The structure of the present invention that achieves the above object is as follows.

(1)電子写真プロセスを用いた画像形成装置のクリー
ニング装置であって、回転する像担持体上に当接され、
転写後の像担持体上に残留したトナーを掻き落すクリー
ニングブレードと、該クリーニングブレードに対し像担
持体の回転方向上流側に配置され、クリーニングブレー
ドで掻き落されたトナーの飛散を防止する入口シールと
を有するクリーニング装置のクリーニング方法において
、画像形成動作終了後、前記像担持体を画像形成時の正
回転と反対方向の逆回転させると同時に、クリーニング
ブレードの像担持体への当接を解除し、クリーニングブ
レードのエツジ部が当接していた像担持体の位置が前記
入口シールまで達する前に逆回転を停止し、次に像担持
体を正回転させ、クリーニングブレードを像担持体上に
当接することを特徴とするクリーニング方法。
(1) A cleaning device for an image forming apparatus using an electrophotographic process, which comes into contact with a rotating image carrier,
A cleaning blade that scrapes off toner remaining on the image carrier after transfer, and an inlet seal that is disposed upstream of the cleaning blade in the rotational direction of the image carrier and prevents the toner scraped off by the cleaning blade from scattering. In the method for cleaning a cleaning device, after the image forming operation is completed, the image carrier is rotated in a reverse direction opposite to the normal rotation during image formation, and at the same time, the contact of the cleaning blade to the image carrier is released. , the reverse rotation is stopped before the position of the image carrier that the edge portion of the cleaning blade was in contact with reaches the inlet seal, and then the image carrier is rotated in the forward direction, and the cleaning blade is brought into contact with the image carrier. A cleaning method characterized by:

(2)電子写真プロセスを用いた画像形成装置のクリー
ニング装置であって、回転する像担持体上に当接され、
転写後の像担持体上に残留したトナーを掻き落すクリー
ニングブレードと、該クリーニングブレードに対し像担
持体の回転方向上流側に配置され、クリーニングブレー
ドで掻き落されたトナーの飛散を防止する入口シールと
、該入口シールとクリーニングブレードの間に配置され
たクリーニングブラシとを有するクリーニング装置のク
リーニング方法において、画像形成動作終了後、前記像
担持体を画像形成時の正回転と反対方向の逆回転させる
と同時に、クリーニングブレードと入口シールの像担持
体への当接を解除し、そして像担持体の逆回転を停止し
、次に像担持体を正回転させた、クリーニングブレード
と入口シールを像担持体上に当接することを特徴とする
クリーニング方法。
(2) A cleaning device for an image forming apparatus using an electrophotographic process, which is brought into contact with a rotating image carrier,
A cleaning blade that scrapes off toner remaining on the image carrier after transfer, and an inlet seal that is disposed upstream of the cleaning blade in the rotational direction of the image carrier and prevents the toner scraped off by the cleaning blade from scattering. and a cleaning brush disposed between the inlet seal and the cleaning blade, wherein after the image forming operation is completed, the image carrier is rotated in a reverse direction opposite to the forward rotation during image formation. At the same time, the cleaning blade and the inlet seal are released from contact with the image carrier, the reverse rotation of the image carrier is stopped, and then the image carrier is rotated forward, and the cleaning blade and the inlet seal are removed from the image carrier. A cleaning method characterized by contacting the body.

作用 請求項1の構成によれば、像担持体の逆回転時に、クリ
ーニングブレードの像担持体への当接を解除するので、
像担持体の逆回転駆動に大きな負荷がかからず、クリー
ニングブレードのエツジ部が当接していた像担持体の位
置が入口シールを越える前に停止させるので、付着物が
クリーニング装置外へ飛散等することも防止できる。
According to the configuration of the first aspect of the invention, since the cleaning blade is released from contact with the image carrier when the image carrier rotates in reverse,
There is no large load on the reverse rotation of the image carrier, and the edge of the cleaning blade comes to a stop before the image carrier reaches the entrance seal, which prevents deposits from scattering outside the cleaning device. It can also be prevented.

請求項2の構成によれば、上記と同様に像担持体の逆回
転駆動に大きな負荷がかかわらず、しかもクリーニング
ブレードのエツジ部に付着した付着物はクリーニングブ
ラシで除去されるので、像担持体の逆回転を停止すると
き、クリーニングブレードのエツジ部が当接していた位
置が入口シール部を越えても問題がなく、制御が簡単に
なる。
According to the structure of the second aspect, similarly to the above, a large load is not required to drive the image carrier in reverse rotation, and in addition, the deposits attached to the edge portion of the cleaning blade are removed by the cleaning brush, so that the image carrier can be easily rotated. When stopping the reverse rotation of the cleaning blade, there is no problem even if the position where the edge part of the cleaning blade was in contact exceeds the inlet seal part, and the control becomes simple.

大電気 以下、本発明の実施例を添付図面に従って説明する。large electricity Embodiments of the present invention will be described below with reference to the accompanying drawings.

第1図は、本発明が適用される複写機のクリーニング装
置の概略図であり、符号1は像担持体としての感光体ド
ラム、2はクリーニング装置である。感光体ドラム1は
、コピー時に矢印A方向で示す正回転方向へ回転駆動さ
れる。クリーニング装置2には、転写後の感光体ドラム
1に残留したトナーを掻き落すクリーニングブレード3
が設けられ、二′のクリーニングブレード3の感光体ド
ラム1の回転方向上流側には入口シール4が設けられて
いる。この入口シール4は、クリーニングブレード3で
掻き落されたトナーがクリーニング装置外へ落下して飛
散しないように配置されている。
FIG. 1 is a schematic diagram of a cleaning device for a copying machine to which the present invention is applied, in which reference numeral 1 denotes a photosensitive drum as an image carrier, and 2 denotes a cleaning device. The photosensitive drum 1 is rotationally driven in the forward rotation direction shown by the arrow A direction during copying. The cleaning device 2 includes a cleaning blade 3 that scrapes off toner remaining on the photoreceptor drum 1 after transfer.
An inlet seal 4 is provided on the upstream side of the second cleaning blade 3 in the rotational direction of the photosensitive drum 1. This inlet seal 4 is arranged to prevent the toner scraped off by the cleaning blade 3 from falling and scattering outside the cleaning device.

かく構成のクリーニング装置2は、通常コピー時におい
て第2図に示すように、転写後の残留トナーはクリーニ
ングブレード3によって清掃されるが、クリーニングブ
レード3のエツジ部3aにはトナーや紙粉等が溜る。そ
こで、コピーが排出部(図示せず)に排出されるコピー
終了時に、第3図に示すように、感光体ドラム1を矢印
Aと反対の矢印B方向に逆回転させ、その逆回転と同時
にクリーニングブレード3を感光体ドラム1から離す。
In the cleaning device 2 having this structure, as shown in FIG. 2 during normal copying, residual toner after transfer is cleaned by the cleaning blade 3, but toner, paper dust, etc. are removed from the edge portion 3a of the cleaning blade 3. accumulate. Therefore, at the end of copying when the copy is ejected to the ejecting section (not shown), as shown in FIG. Separate the cleaning blade 3 from the photoreceptor drum 1.

このとき、感光体ドラム1の押さえる力がなくなり、感
光体ドラム1を容易に回転することができる。すなわち
、クリーニングブレード3が離れることで感光体ドラム
1のブレーキがなくなった状態になるので、容易に回転
できる。
At this time, the pressing force of the photoreceptor drum 1 is removed, and the photoreceptor drum 1 can be easily rotated. That is, when the cleaning blade 3 is separated, the brake of the photosensitive drum 1 is removed, so that the photosensitive drum 1 can rotate easily.

また、感光体ドラム1の逆回転幅は感光体ドラム1のク
リーニングブレード3のエツジ部3aが当接していた位
置が入口シール4を越えない幅内になるように制御する
。すなわち、入口シール4のドラム当接部からクリーニ
ングブレードのエツジ部までの距離をLとすると、感光
体ドラム1の表面の移動距離がLの範囲内になるように
回転角度を制御する。もし、距離り以上に回転しそうな
場合にはクリーニングブレード3を感光体ドラムに当接
させてブレーキをかけるようにして停止位置を制御する
ことも可能である。
Further, the width of the reverse rotation of the photosensitive drum 1 is controlled so that the position where the edge portion 3a of the cleaning blade 3 of the photosensitive drum 1 was in contact is within a width that does not exceed the entrance seal 4. That is, assuming that the distance from the drum abutting part of the inlet seal 4 to the edge part of the cleaning blade is L, the rotation angle is controlled so that the moving distance of the surface of the photosensitive drum 1 is within the range L. If it is likely to rotate beyond the distance, it is also possible to control the stopping position by bringing the cleaning blade 3 into contact with the photoreceptor drum to apply a brake.

かくして、感光体ドラム1の逆回転を幅りに相当する距
離以内であれば、クリーニングブレード3のエツジ部3
aに溜っていたトナー等が入口シール4を越えることが
なく、トナー飛散や入口シール4の汚れを防止できる。
In this way, if the reverse rotation of the photoreceptor drum 1 is within a distance corresponding to the width, the edge portion 3 of the cleaning blade 3
Toner and the like accumulated in a do not exceed the entrance seal 4, and toner scattering and staining of the entrance seal 4 can be prevented.

次に、プリントボタンONやメインスイッチONで再び
感光体ドラム1が矢印A方向に回転すると同時もしくは
その直後に、第4図に示すようにクリーニングブレード
3を感光体ドラム1に当接させる。すなわち、付着物5
がクリーニングブレード3のエツジ部3aを通過する前
にクリーニングブレード3を当接させる。このとき、非
常に大きい摩擦力がクリーニングブレード3のエツジ部
3aと感光体ドラム1の間に働くため、付着物5の除去
効果が大きく、付着物5を感光体ドラム1から確実に掻
き落すことができる。
Next, at the same time or immediately after the photosensitive drum 1 rotates again in the direction of arrow A by turning on the print button or the main switch, the cleaning blade 3 is brought into contact with the photosensitive drum 1 as shown in FIG. That is, the deposit 5
The cleaning blade 3 is brought into contact with the cleaning blade 3 before it passes the edge portion 3a of the cleaning blade 3. At this time, since a very large frictional force acts between the edge portion 3a of the cleaning blade 3 and the photoreceptor drum 1, the removal effect of the deposits 5 is large, and the deposits 5 can be reliably scraped off from the photoreceptor drum 1. I can do it.

第5図は、本発明の別の実施例を示す説明図であって、
本実施例では入口シール4とクリーニングブレード3の
間にクリーニングブラシ6を設けている。
FIG. 5 is an explanatory diagram showing another embodiment of the present invention,
In this embodiment, a cleaning brush 6 is provided between the inlet seal 4 and the cleaning blade 3.

かく構成のクリーニング装置2もクリーニングブレード
3のエツジ部3aに付着物が溜る。そこで、コピーが排
出部に排出されたコピー終了時に第6図に示すように、
感光体ドラム1を矢印B方向に逆回転させる。この逆回
転と同時に、クリーニングブレード3と入口シール4を
感光体ドラム1から離すと、感光体ドラム1への押さえ
る力がなくなり、ドラムは容易に回転させることができ
る。
In the cleaning device 2 having such a configuration, deposits also accumulate on the edge portion 3a of the cleaning blade 3. Therefore, at the end of copying when the copy is ejected to the ejecting section, as shown in FIG.
The photosensitive drum 1 is reversely rotated in the direction of arrow B. When the cleaning blade 3 and the inlet seal 4 are separated from the photoreceptor drum 1 at the same time as this reverse rotation, the pressing force on the photoreceptor drum 1 is removed, and the drum can be easily rotated.

また、感光体ドラム1の逆回転幅は感光体1におけるク
リーニングブレード3のエツジ部3aが当接していた位
置が入口シール4の当接位置を越えないように制御する
ことが理想である。しかし。
Ideally, the width of the reverse rotation of the photoreceptor drum 1 is controlled so that the position where the edge portion 3a of the cleaning blade 3 contacts the photoreceptor 1 does not exceed the contact position of the inlet seal 4. but.

実際には停止位置のバラツクことかあり、付着物が入口
シール4を越えることが起り得る。このとき、入口シー
ル4を感光体ドラム1に当接させたままであると、感光
体ドラム1を正回転させたとき、入口シール4を汚しか
つ付着物5が飛散する。
In reality, there may be variations in the stopping position, and it is possible for deposits to exceed the inlet seal 4. At this time, if the entrance seal 4 remains in contact with the photoreceptor drum 1, when the photoreceptor drum 1 is rotated forward, the entrance seal 4 will become dirty and the deposits 5 will scatter.

そこで、本実施例ではクリーニングブレード3の当接解
除と同時に入口シール4の感光体ドラム1への当接も解
除して逆回転する。このとき、付着物5はある程度がク
リーニングブラシ6で拭き取られ、さらに感光体ドラム
1に付着したものだけが入口シール4を越えることもあ
るが、搬送経路上に落下する量でなく、入口シール4を
解除しても付着物飛散等が発生しない。
Therefore, in this embodiment, at the same time as the cleaning blade 3 is released from contact, the inlet seal 4 is also released from contact with the photosensitive drum 1, and the inlet seal 4 is rotated in the reverse direction. At this time, some of the deposits 5 are wiped off by the cleaning brush 6, and only the deposits on the photoreceptor drum 1 may exceed the entrance seal 4, but the amount does not fall onto the conveyance path and is Even if 4 is canceled, deposits will not be scattered.

次に、プリントボタンONやメインスイッチONで再び
感光体ドラム1が矢印A方向に回転し。
Next, when the print button is turned on or the main switch is turned on, the photosensitive drum 1 rotates in the direction of arrow A again.

入口シール4を通過後に、第7図に示すようにクリーニ
ングブレード3と入口シール4を感光体ドラム1に当接
させる。すなわち、入口シール4を通過した付着物5が
クリーニングブレード3のエツジ部3aを通過する前に
クリーニングブレード3と入口シール4を当接させる。
After passing through the entrance seal 4, the cleaning blade 3 and the entrance seal 4 are brought into contact with the photosensitive drum 1, as shown in FIG. That is, the cleaning blade 3 and the entrance seal 4 are brought into contact with each other before the deposit 5 that has passed through the entrance seal 4 passes through the edge portion 3a of the cleaning blade 3.

このとき、非常に大きい摩擦力がクリーニングブレード
3のエツジ部3aと感光体ドラム1の間に働くため、付
着物5の除去効果が大きく、付着物5を感光体ドラム1
から確実に掻き落すことができる6なお、上記実施例で
はクリーニングブレード3をカウンタ一方向に配置した
が、本発明はクリーニングブレード3が第8図に示すよ
うに、トレーリング方向に配置したものにも適用できる
At this time, since a very large frictional force acts between the edge portion 3a of the cleaning blade 3 and the photoreceptor drum 1, the removal effect of the deposits 5 is large, and the deposits 5 are removed from the photoreceptor drum 1.
In the above embodiment, the cleaning blade 3 is arranged in one direction of the counter, but in the present invention, the cleaning blade 3 is arranged in the trailing direction as shown in FIG. can also be applied.

羞−果 上記構成によれば、本発明は像担持体の逆回転時に、ク
リーニングブレードの像担持体への当接を解除するので
、像担持体の逆回転に大きな負荷がかからず、クリーニ
ングブレードのエツジ部が当接していた像担持体の位置
が入口シールを越えないので、付着物がクリーニング装
置外へ飛散等することも防止できた。しかも、クリーニ
ングブレードのエツジ部に付着した付着物はクリーニン
グブラシで除去されるので、像担持体の逆回転を停止す
るとき、クリーニングブレードのエツジ部が当接してい
た位置が入口シール部を越えても問題がなく、制御が簡
単になる。
According to the above configuration, the present invention releases the cleaning blade from contact with the image carrier when the image carrier is rotated in reverse, so that a large load is not applied to the reverse rotation of the image carrier, and the cleaning can be performed easily. Since the position of the image carrier that the edge portion of the blade was in contact with did not exceed the entrance seal, it was also possible to prevent deposits from scattering outside the cleaning device. Moreover, since the deposits on the edge of the cleaning blade are removed by the cleaning brush, when the reverse rotation of the image bearing member is stopped, the position where the edge of the cleaning blade was in contact is past the inlet seal. There are no problems and control becomes easier.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は1本発明が適用される複写機のクリーニング装
置の概略図、第2図は付着物がクリーニングブレードの
エツジに溜った状態を示す説明図、第3図は感光体ドラ
ムを逆転させた状態を示す説明図、第4図は感光体ドラ
ムを再び正転させた状態を示す説明図、第5図は本発明
が適用されるクリーニング装置の別の実施例を示す概略
図、第6図はその感光体ドラムを逆転させた状態を示す
説明図、第7図は感光体ドラムを再び正転させた状態を
示す説明図、第8図は本発明が適用されるクリーニング
装置のさらに別の実施例を示す概略図である。 1・・ 2・・ 3・・ 4・・ 5・・ ・感光体ドラ ・クリーニング装置 ・クリーニングブレード ・入口シール ・付着物 1
Fig. 1 is a schematic diagram of a cleaning device for a copying machine to which the present invention is applied, Fig. 2 is an explanatory diagram showing a state in which deposits have accumulated on the edge of the cleaning blade, and Fig. 3 is an illustration of a photoconductor drum being reversed. FIG. 4 is an explanatory diagram showing a state in which the photosensitive drum is rotated in the normal direction again. FIG. 5 is a schematic diagram showing another embodiment of the cleaning device to which the present invention is applied. The figure is an explanatory diagram showing a state in which the photoconductor drum is rotated in reverse, FIG. 7 is an explanatory diagram showing a state in which the photoconductor drum is rotated forward again, and FIG. 8 is an explanatory diagram showing a state in which the photoconductor drum is rotated in the normal direction again. It is a schematic diagram showing an example of. 1.. 2.. 3.. 4.. 5.. -Photoconductor drum, cleaning device, cleaning blade, entrance seal, deposit 1

Claims (2)

【特許請求の範囲】[Claims] (1)電子写真プロセスを用いた画像形成装置のクリー
ニング装置であって、回転する像担持体上に当接され、
転写後の像担持体上に残留したトナーを掻き落すクリー
ニングブレードと、該クリーニングブレードに対し像担
持体の回転方向上流側に配置され、クリーニングブレー
ドで掻き落されたトナーの飛散を防止する入口シールと
を有するクリーニング装置のクリーニング方法において
、 画像形成動作終了後、前記像担持体を画像 形成時の正回転と反対方向の逆回転させると同時に、ク
リーニングブレードの像担持体への当接を解除し、クリ
ーニングブレードのエッジ部が当接していた像担持体の
位置が前記入口シールまで達する前に逆回転を停止し、
次に像担持体を正回転させ、クリーニングブレードを像
担持体上に当接することを特徴とするクリーニング方法
(1) A cleaning device for an image forming apparatus using an electrophotographic process, which comes into contact with a rotating image carrier,
A cleaning blade that scrapes off toner remaining on the image carrier after transfer, and an inlet seal that is disposed upstream of the cleaning blade in the rotational direction of the image carrier and prevents the toner scraped off by the cleaning blade from scattering. In the method for cleaning a cleaning device, after the image forming operation is completed, the image carrier is rotated in a reverse direction opposite to the forward rotation during image formation, and at the same time, the contact of the cleaning blade to the image carrier is released. , stopping the reverse rotation before the position of the image carrier that the edge portion of the cleaning blade was in contact with reaches the inlet seal;
Next, the image carrier is rotated in the normal direction, and a cleaning blade is brought into contact with the image carrier.
(2)電子写真プロセスを用いた画像形成装置のクリー
ニング装置であって、回転する像担持体上に当接され、
転写後の像担持体上に残留したトナーを掻き落すクリー
ニングブレードと、該クリーニングブレードに対し像担
持体の回転方向上流側に配置され、クリーニングブレー
ドで掻き落されたトナーの飛散を防止する入口シールと
、該入口シールとクリーニングブレードの間に配置され
たクリーニングブラシとを有するクリーニング装置のク
リーニング方法において、 画像形成動作終了後、前記像担持体を画像 形成時の正回転と反対方向の逆回転させると同時に、ク
リーニングブレードと入口シールの像担持体への当接を
解除し、そして像担持体の逆回転を停止し、次に像担持
体を正回転させた、クリーニングブレードと入口シール
を像担持体上に当接することを特徴とするクリーニング
方法。
(2) A cleaning device for an image forming apparatus using an electrophotographic process, which is brought into contact with a rotating image carrier,
A cleaning blade that scrapes off toner remaining on the image carrier after transfer, and an inlet seal that is disposed upstream of the cleaning blade in the rotational direction of the image carrier and prevents the toner scraped off by the cleaning blade from scattering. and a cleaning brush disposed between the inlet seal and the cleaning blade, wherein after the image forming operation is completed, the image carrier is rotated in a reverse direction opposite to the forward rotation during image formation. At the same time, the cleaning blade and the inlet seal are released from contact with the image carrier, the reverse rotation of the image carrier is stopped, and then the image carrier is rotated forward, and the cleaning blade and the inlet seal are removed from the image carrier. A cleaning method characterized by contacting the body.
JP3980090A 1990-02-22 1990-02-22 Cleaning method Pending JPH03243977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3980090A JPH03243977A (en) 1990-02-22 1990-02-22 Cleaning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3980090A JPH03243977A (en) 1990-02-22 1990-02-22 Cleaning method

Publications (1)

Publication Number Publication Date
JPH03243977A true JPH03243977A (en) 1991-10-30

Family

ID=12563033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3980090A Pending JPH03243977A (en) 1990-02-22 1990-02-22 Cleaning method

Country Status (1)

Country Link
JP (1) JPH03243977A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008129443A (en) * 2006-11-22 2008-06-05 Ricoh Co Ltd Cleaning unit, belt unit and image forming apparatus
JP2010002602A (en) * 2008-06-19 2010-01-07 Fuji Xerox Co Ltd Image forming device
JP2011085728A (en) * 2009-10-15 2011-04-28 Konica Minolta Business Technologies Inc Image forming apparatus
JP2011133618A (en) * 2009-12-24 2011-07-07 Konica Minolta Business Technologies Inc Image forming apparatus
US8055178B2 (en) * 2007-06-18 2011-11-08 Ricoh Company, Ltd. Cleaning device, process cartridge, and image forming apparatus having a pressing member which contacts an elastic blade

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008129443A (en) * 2006-11-22 2008-06-05 Ricoh Co Ltd Cleaning unit, belt unit and image forming apparatus
US8055178B2 (en) * 2007-06-18 2011-11-08 Ricoh Company, Ltd. Cleaning device, process cartridge, and image forming apparatus having a pressing member which contacts an elastic blade
JP2010002602A (en) * 2008-06-19 2010-01-07 Fuji Xerox Co Ltd Image forming device
JP2011085728A (en) * 2009-10-15 2011-04-28 Konica Minolta Business Technologies Inc Image forming apparatus
JP2011133618A (en) * 2009-12-24 2011-07-07 Konica Minolta Business Technologies Inc Image forming apparatus

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