JPS6059380A - Cleaning device - Google Patents

Cleaning device

Info

Publication number
JPS6059380A
JPS6059380A JP16784883A JP16784883A JPS6059380A JP S6059380 A JPS6059380 A JP S6059380A JP 16784883 A JP16784883 A JP 16784883A JP 16784883 A JP16784883 A JP 16784883A JP S6059380 A JPS6059380 A JP S6059380A
Authority
JP
Japan
Prior art keywords
cleaning
cleaning blade
photoreceptor
force
blade
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
JP16784883A
Other languages
Japanese (ja)
Inventor
Masatoshi Hayashida
林田　政俊
Toshiyuki Karaishi
唐石　俊之
Yoshiaki Tamura
義昭 田村
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP16784883A priority Critical patent/JPS6059380A/en
Publication of JPS6059380A publication Critical patent/JPS6059380A/en
Pending legal-status Critical Current

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
    • G03G21/0011—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 using a blade; Details of cleaning blades, e.g. blade shape, layer forming

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To remove a carried body on a photosensitive body effectively by specifying the friction torque between the photosensitive body and a cleaning blade above 0.1kgf.cm/cm. CONSTITUTION:The composite force F of a vertical drag FN from the surface of the photosensitive body 1 and the frictional force FF between the cleaning blade 22 and photosensitive body 11 operates to separate the blade 22, causing a defect in cleaning. The life of the photosensitive body 1 is longer and longer as the frictional force FF is larger and larger, and a saturated state is entered above a 0.1kg.fcm/cm frictional force FF. For the purpose, the press-contacting force of the blade 22 is so set that the frictional force FF is >=0.1kgf.cm/cm, thereby cleaning the photosensitive body excellently.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明はたとえば祁、子写真複写機の感光体表面等をク
リーニングするクリーニング装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cleaning device for cleaning the surface of a photoreceptor of, for example, a photocopying machine.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来、上記様のクリーニング装置としては、たとえは第
１図に示すように、回転している感光体（担持体）１の
表面にポリウレタンコ゛ム等の弾性材よシなるクリーニ
ングブレード２を接触させて上記感光体１の表面に付着
しているトナー（被担持物）ａをかき落しクリーニング
するようにしたものが知られている。Conventionally, as shown in FIG. 1, the above-mentioned cleaning device has conventionally used a cleaning blade 2 made of an elastic material such as polyurethane comb, which is brought into contact with the surface of a rotating photoreceptor (carrier) 1. A device is known that cleans the surface of the photoreceptor 1 by scraping off the toner (supported material) a attached to the surface.

しかしながら、この装置では、ある条件によっては感光
体１の表面に転写紙等の紙粉が外部から侵入するため、
繊維等の貨物（被担持物）ｂが付着し、この異物すがク
リーニングブレード２のエツジ３を部分的に感光体１の
表面から浮き」二がらせてしまうので、クリーニング不
良となったシ、その隙間に微粒子トナーａが入り込み感
光体１の表面に傷をイ・ｊけたり、トナー固着を起こし
たシする問題があった。However, in this device, paper dust such as transfer paper may enter the surface of the photoreceptor 1 from the outside depending on certain conditions.
Cargo (supported material) b such as fibers adheres, and this foreign material partially lifts the edge 3 of the cleaning blade 2 from the surface of the photoreceptor 1, causing poor cleaning. There was a problem that the fine particles of toner a entered the gap and caused scratches on the surface of the photoreceptor 1 or caused toner sticking.

〔発明の目的〕[Purpose of the invention]

本発明は上記事情にもとづいてなされたもので、その目
的とするところは、相持体上の被相持物を効果的に除去
することができるようにしたクリーニング装置を提供す
ることにある。The present invention has been made based on the above-mentioned circumstances, and an object thereof is to provide a cleaning device that can effectively remove objects to be held on a support body.

〔発明の概要〕[Summary of the invention]

本発明は、上記目的を達成するために、担持体にクリー
ニングブレードを圧接して上記担持体に担持される被担
持物を除去するようにし／ζクリーニング装置において
、上記、ｌｌ土！持体と上記クリーニングブレードとの
摩擦トルクが０．１に９ｆ・ｃｍ／ｃｒｎ以上と々るよ
うに上記クリーニングブレードの圧接力を設定したこと
を特徴とするものである。In order to achieve the above object, the present invention provides a cleaning device in which a cleaning blade is pressed into contact with a carrier to remove an object carried on the carrier. The cleaning blade is characterized in that the pressure contact force of the cleaning blade is set so that the friction torque between the holding body and the cleaning blade reaches 0.1 to 9 f·cm/crn or more.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第２図〜第７図を参照しなが
ら説明する。第２図は本発明に係るクリーニング装置を
用いた電子写真複写機を示すもので、図中１１は所定方
向へ回転するドラム状の担持体としての感光体である。An embodiment of the present invention will be described below with reference to FIGS. 2 to 7. FIG. 2 shows an electrophotographic copying machine using a cleaning device according to the present invention, and in the figure, reference numeral 11 denotes a photoreceptor as a drum-shaped carrier that rotates in a predetermined direction.

この感光体１１の周囲にはその回転方向に清ってｊｌｆ
ｆ４に、帯電チャージャー１２、露光系１３、現像装置
１４１転写チヤージヤー１５、剥離チャージャー１６、
クリーニング装面１７および除電ランプ１８が配置され
ている。また、感光体１ノと転写チャーツヤ−１５およ
び豹１離チャージャー１６との間には転写紙Ｐの移送路
１９が通っている＠しかして、先ず、感光体１１の表面
には帯電チャージャー１２と露光糸１３によって静電潜
像が形成される。ついで、この静電潜像が現像装置１４
によって被相持物としてのトナーａで現像されることに
よ）トナー像が形成される。Around this photoreceptor 11, there is a jlf
f4, a charging charger 12, an exposure system 13, a developing device 141, a transfer charger 15, a peeling charger 16,
A cleaning surface 17 and a static elimination lamp 18 are arranged. Furthermore, a transfer path 19 for the transfer paper P passes between the photoreceptor 1, the transfer charter 15, and the charger 16. An electrostatic latent image is formed by the exposed thread 13. Next, this electrostatic latent image is transferred to the developing device 14.
A toner image is formed by developing with toner a as a mixed material.

このトナー像はレジストローラ２θ、２０によシ移送路
１９上を送られてきた転写紙Ｐ−ヒに転写チャー、シャ
ー１５によって静重転写され、トナー像が転写された転
写紙Ｐは剥１２ｉｌｌチャー、シャー１６によって感光
体１ノから剥即（される。一方、転写剥離後の感光体１
）の表面には転写紙Ｐから発生した紙粉や繊維状の醒物
活（被相持物）ｂとともに転写しき九々かったトナー（
被相持物）ａが付着しているが、これらはクリーニング
装置１７でクリーニングされる。寸だ、クリーニング後
の感光体１ノは除’ｒｒ？、ランゾ１８により除電され
、次のプロセスに入る。This toner image is statically transferred by the transfer shear 15 onto the transfer paper P-H which is sent on the transfer path 19 by the registration rollers 2θ and 20, and the transfer paper P on which the toner image has been transferred is peeled off at 12ills. The shear 16 peels off the photoreceptor 1. On the other hand, the photoreceptor 1 after transfer peeling
) is covered with the transferred toner (
Objects a) are attached, but these are cleaned by the cleaning device 17. Excluding the first photoconductor after cleaning? , the static electricity is removed by Ranzo 18, and the next process begins.

ところで、上記クリーニング装置ｉ４ｊ’、　１７　Ｕ
：　、図示しないリンクおよびソレノイドで感光体ｌＪ
側に伺勢されエツジ２ノが感光体１１の表面に常時圧接
されるクリーニングプレー１２２と、このクリーニング
ブレード２２でかき落されたトナーａを回転しながら磁
力で回収する回収ローラ２３とを有した構成となってい
る。そして、上記クリーニングブレード２２は上記感光
体１１との摩擦トルクが０．１　ｋｇｆ　ｔｍｌσ以上
となるように感光体１１への圧接力が設定されている。By the way, the cleaning device i4j', 17 U
: , photoconductor lJ with a link and solenoid (not shown)
It has a cleaning plate 122 which is placed on the side and whose edge 2 is constantly pressed against the surface of the photoreceptor 11, and a collection roller 23 which rotates and collects the toner a scraped off by the cleaning blade 22 by magnetic force. The structure is as follows. The pressing force of the cleaning blade 22 against the photoreceptor 11 is set so that the friction torque with the photoreceptor 11 is 0.1 kgf tmlσ or more.

以上の構成によれば、トナー像の転写後に感光体１ノ上
に残存する８ｂＦｒ子トナーａおよび繊維状異物等すを
もクリーニングブレード２２により効果的にかき落とす
ことができるので、感光体１ノの傷およびトナーａの固
着を防止でき、感光体１１の寿命（ライフ）を延ばすこ
とができる。According to the above configuration, the cleaning blade 22 can effectively scrape off the 8bFr toner a and fibrous foreign matter remaining on the photoreceptor 1 after the toner image is transferred, so that It is possible to prevent scratches on the photoreceptor 11 and to prevent the toner a from sticking, and the life of the photoreceptor 11 can be extended.

す々わち、第３図に示すように、感光体１１の表面から
受ける垂直抗力ＦＮとクリーニングブレード２２および
感光体１１間の摩擦力ＦＦとの合成抗力Ｆがクリーニン
グブレード２２のエツジ２１を感光体１１の表面から引
き離す方向に働くが、この力によって感光体１１への圧
接力が弱められるため、クリーニング不良が生じる。In other words, as shown in FIG. 3, a composite force F of the normal force FN received from the surface of the photoconductor 11 and the frictional force FF between the cleaning blade 22 and the photoconductor 11 causes the edge 21 of the cleaning blade 22 to become exposed to light. This force acts in a direction to pull the photoreceptor 11 away from the surface of the photoreceptor 11, but this force weakens the pressing force against the photoreceptor 11, resulting in poor cleaning.

そこで、この力の関係からクリーニング効率を向上させ
るために垂直抗力ＦＮを犬きくすることにより摩擦力Ｆ
、を大きくして感光体１１の寿命との関係を実験した結
果、第４図に示すように、クリーニングブレード２２と
ｔ６光体１ノとの圧接力ＦＦが大きくなる程感光体１ノ
の寿命が延０１Ｆ！＝ｍ力ＦＦが０．１．　ｋｙ　ｆ　
ａｎ　／　Ｃｍ以」二では飽和状態となることがわかっ
た。しだがって、クリーニングブレード２２と感光体１
ノとの＋ｔｒｇ　踪ト／レクが０．１ｋｇｆ　ｃｍ　／
　ｃｍ以上となるようにクリーニングブレード２２の圧
接力を設定することにより良好なりリーニングが行なえ
る。Therefore, in order to improve the cleaning efficiency from this force relationship, the frictional force F is increased by increasing the normal force FN.
As a result of experiments on the relationship with the life of the photoconductor 11 by increasing , as shown in FIG. is 01F! = m force FF is 0.1. ky f
It was found that a saturation state occurs when the temperature is less than an/Cm. Therefore, the cleaning blade 22 and the photoreceptor 1
No +trg missing to/rek is 0.1 kgf cm /
By setting the pressure contact force of the cleaning blade 22 to be equal to or greater than cm, good leaning can be performed.

ここで、トルクは、クリーニングブレード２２の感光体
１ノと接触する長づ尚りの大きさで表わしでいる。Here, the torque is expressed by the length of the cleaning blade 22 that comes into contact with the photoreceptor 1.

々お、〜上記摩擦力の測定力法は、ある実根の感光体シ
ャフトにトルクメーターを取り伺け、クリーニングブレ
ード２２のみが感光体１１の表面に圧接されているとき
の起動トルクを人手で測定したものでるシ、上記実施例
ではこのトルクを摩擦トルクとして扱っている。The force method for measuring the frictional force described above is to take a torque meter to the shaft of a certain photoreceptor and manually measure the starting torque when only the cleaning blade 22 is in pressure contact with the surface of the photoreceptor 11. However, in the above embodiment, this torque is treated as friction torque.

また、摩擦力ＦＦを大きくする方法としては種々の方法
が考えられるが、そのいくつかのセロを（１）クリーニ
ングブレード２２の有効長を第５図の曲線（ア）〜←）
で示すように従来１１ｍｍであったものを７〜９叫に短
かくすることにょシ感光体１ノに対する圧接力を大きく
し摩擦力を大きくする方法。なお、第５図中、曲線ケ）
は硬度７８ス長さ１１論のクリーニングブレード、曲線
（（）　はｐ　度７８°、長さ８爺のクリーニングブレ
ード、曲線（り）は硬度７８°、長さ７朋のクリーニン
グブレードを示す。In addition, various methods can be considered to increase the frictional force FF, but some of them are as follows: (1) The effective length of the cleaning blade 22 is set by the curve (a) to ←) in Fig. 5.
As shown in Figure 2, the conventional method is to shorten the length from 11 mm to 7 to 9 mm, and to increase the pressing force against the photoreceptor 1 to increase the frictional force. In addition, in Figure 5, curve ke)
The curve () shows a cleaning blade with a hardness of 78° and a length of 11 mm, the curve () shows a cleaning blade with a hardness of 78° and a length of 7 mm.

（２）　クリーニングブレード２２の硬度を第６図に示
すように従来６１°であったものを６４〜７８°に硬く
することでクリーニングブレード２２の圧接力を大きく
し感光体１ノとの＃振力を大きくする方法。なお、第６
図中、曲線（ア）は硬度６１°のクリーニングブレード
、曲線（イ）は硬度６４゜のクリーニングブレード、曲
線（つ）は硬度７５°のクリーニングブレード、曲線に
）は硬度７８°のクリーニングブレードを示す。(2) As shown in FIG. 6, the hardness of the cleaning blade 22 is increased from 61° to 64° to 78°, thereby increasing the pressure contact force of the cleaning blade 22 and reducing # vibration with the photoreceptor 1. How to increase power. In addition, the 6th
In the figure, curve (A) is a cleaning blade with a hardness of 61°, curve (A) is a cleaning blade with a hardness of 64°, curve (1) is a cleaning blade with a hardness of 75°, and curve (a) is a cleaning blade with a hardness of 78°. show.

（３）　クリーニングブレード２２の厚さを第５図の曲
ね（１）〜（力）で示すように３〜５咽に厚くすること
でクリーニングブレード２２の圧接力を大きくし感光体
１１との摩擦力を大きくする方法。なお、第５図中、曲
線（１）は硬度７８°、長さ１１闘、厚さ３ｆｌのクリ
ーニングブレード、曲線０・）は硬度７８°、長さ９ｍ
、九」さ３箇のクリーニングブレード、曲胚ｊ（力）は
イ萌度７８°、長さ１１ｗｎ、’Ｊ早さ５論のクリーニ
ングブレードを示す。(3) By increasing the thickness of the cleaning blade 22 to 3 to 5 degrees, as shown by curves (1) to (force) in FIG. How to increase frictional force. In Figure 5, curve (1) is a cleaning blade with a hardness of 78°, a length of 11 mm, and a thickness of 3 fl, and a curve (0) is a cleaning blade with a hardness of 78° and a length of 9 m.
, 9", 3 cleaning blades, bend j (force) indicates a cleaning blade with a degree of 78 degrees, a length of 11wn, and a speed of 5.

（４）クリーニングブレード２２の感光体１１への食い
込み量を深くとることで感光体１ノへの圧接力を大きく
し摩］所力を太きくする方法。(4) A method of increasing the pressing force on the photoreceptor 1 by increasing the amount of cleaning blade 22 biting into the photoreceptor 11.

但し、」二記条件における感光体１１に対するクリーニ
ングブレード２２の圧接角度は、第７図に示すように、
ホルダ２４の軸ｆ４ＮＹ　ｙの延長と感光体１１との交
点Ｐを通るＪ妾糸！、ｉ　Ｘ　−Ｘを仮定し、両線Ｘ−
Ｙのなすクリーニング前側と後側の角度を夫々η１．η
２、ホルダ２４に対長与郡の４曲肋（が」二Ｂ己接巌Ｘ
−Ｘとなず角をカモ工≦μｍ≦πの関係特にμｍΣλπ
付近の値が−３ 良い結果が得られた。However, the pressure contact angle of the cleaning blade 22 with respect to the photoreceptor 11 under the conditions described in "2" is as shown in FIG.
The J concubine thread passes through the intersection P of the extension of the axis f4NY y of the holder 24 and the photoreceptor 11! , i X −X, and both lines X−
The angles formed by Y on the front and rear sides of cleaning are respectively η1. η
2. Holder 24 has 4 ribs (ga) 2B self-crossing X
The relationship between -X and the angle is ≦μm≦π, especially μmΣλπ
Good results were obtained when the value was around -3.

また、上記実施例では一成分圧定トナーを使用したが、
−成分熱圧定ｌ・ナーあるいは二成分トナーについても
その効果は変わらず、感光伺・についても比較的に硬度
の低いＳｅ感光体を使用したが、その他の感光体たとえ
ばＣｄ　ｓ、　ＯＰＣ，Ｑ４化亜鉛等のパウダー系の感
光体や高硬度のアモルファスシリコン感光体等について
もクリーニング効沫−が変わらないことけ勿論である。In addition, in the above embodiment, a one-component pressure toner was used, but
- The effect is the same for component thermocompression toner or two-component toner, and for photoreceptor, a relatively low hardness Se photoreceptor was used, but other photoreceptors such as Cds, OPC, Q4 Of course, the cleaning effect remains the same for powder-based photoreceptors such as zinc chloride and highly hard amorphous silicon photoreceptors.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、扛（特休にクリー
ニングブレードを圧接して上Ｅ　Ｊ’ｓ持体特体持され
る被担持物を除去するようにしたクリーニング装置にお
いて、上記相持体と上記クリーニングブレードとの摩擦
トルクが０．１　ｋ１７　ｆ・Ｃｍ　／　Ｃｎ１以上と
なるように上記クリーニングブレードの圧接力を設定し
だから、相持体上の被相持物を効果的に除去することが
できる等の優れAs explained above, according to the present invention, in the cleaning device which removes the object held by the upper EJ's holder by pressing the cleaning blade against the holder, Since the pressure contact force of the cleaning blade is set so that the friction torque between the cleaning blade and the cleaning blade is 0.1 k17 f・Cm/Cn1 or more, the object held on the support body can be effectively removed. etc. excellence

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

第１図は従来例を示す説明図、第２図〜第７図は本発明
の一実施例を示すもので、第２図は電子写真複写機を概
略的に示すイ１ｑ成図、第３図長さおよび厚さを・ぐラ
メータとしたときの摩擦トルクとクリーニンググレード
のオーバーラツプ量との関係を示す図、第６図はクリー
ニンググレードの硬度をパラメータとしたときの摩擦ト
ルクとクリーニングブレードのオーバーラツプ量との関
係を示す１ス、第７図はクリーニンググレードの圧接角
度を示す説明１′Ａである。 １１・・・担持体（感光体）、ａ・・・被相持物（トナ
ー）、ｂ・・・被担持物（異物）、２２・・・りＩＪ−
ニンググレード。 出願人代理人　弁理士　鈴　江　武　彦’５　４　図 第５図 ブレード′めオーバーラツプ量 第６図 ブレードめオーバーフッツブ量 第７図 １Fig. 1 is an explanatory diagram showing a conventional example, Figs. 2 to 7 show an embodiment of the present invention, Fig. 2 is a diagram schematically showing an electrophotographic copying machine; Figure 6 shows the relationship between friction torque and cleaning grade overlap when length and thickness are parameters. Figure 6 shows the relationship between friction torque and cleaning blade overlap when cleaning grade hardness is a parameter. Figure 7 shows the relationship between the cleaning grade and the pressure contact angle. DESCRIPTION OF SYMBOLS 11... Carrier (photoreceptor), a... Supported object (toner), b... Supported object (foreign matter), 22... Ri IJ-
ning grade. Applicant's Representative Patent Attorney Takehiko Suzue '5 4 Figure 5 Amount of Overlap of Blade Figure 6 Amount of Overlap of Blade Figure 7 Amount of Overfoot of Blade Figure 1

Claims (5)

【特許請求の範囲】[Claims] （１）　担持体にクリーニングブレードを圧接して上記
担持体に担持される被］」コ持物を除去するようにした
ものにおいて、上記Ｊｊｌ持休と体記クリーニングブレ
ードとの摩擦トルクが０．１ｋｇｆ・Ｃｍ　／　Ｃｍ以
上となるように上記クリーニングブレードの圧接力を設
定したことを特徴とするクリーニング装置。(1) In a device in which the objects carried on the carrier are removed by pressing a cleaning blade against the carrier, the friction torque between the cleaning blade and the cleaning blade is 0.1 kgf. - A cleaning device characterized in that the pressure contact force of the cleaning blade is set to be Cm/Cm or more. （２）　クリーニングブレードの翁効長を６〜９胴に短
かくすることによシ圧揚力を設定したことを特徴とする
特許請求の範囲第１ｍ記載のクリーニング装置。(2) The cleaning device according to claim 1, wherein the lifting force is set by shortening the effective length of the cleaning blade to 6 to 9 cylinders. （３）　クリーニングブレードの硬度を７８°以上に硬
くすることによシ圧接力を設定したことを特徴とする特
許請求の範囲第１項記載のクリーニング装置。(3) The cleaning device according to claim 1, wherein the pressure contact force is set by increasing the hardness of the cleaning blade to 78° or more. （４）　クリーニングブレードの厚さを３〜５＋ｍｎに
厚くすることによシ圧接力を設定したことを特徴とする
特許請求の範囲第１項記載のクリーニング装動°。(4) The cleaning device according to claim 1, wherein the pressure contact force is set by increasing the thickness of the cleaning blade to 3 to 5+mm. （５）クリーニングブレードの食い込ミ量ヲ３調以上に
深くすることにより圧接力を設定したことを特徴とする
特許請求の範囲第１項記載のクリーニング装置。(5) The cleaning device according to claim 1, wherein the pressing force is set by increasing the depth of the cleaning blade by three or more depths.
JP16784883A 1983-09-12 1983-09-12 Cleaning device Pending JPS6059380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16784883A JPS6059380A (en) 1983-09-12 1983-09-12 Cleaning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16784883A JPS6059380A (en) 1983-09-12 1983-09-12 Cleaning device

Publications (1)

Publication Number Publication Date
JPS6059380A true JPS6059380A (en) 1985-04-05

Family

ID=15857205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16784883A Pending JPS6059380A (en) 1983-09-12 1983-09-12 Cleaning device

Country Status (1)

Country Link
JP (1) JPS6059380A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01293380A (en) * 1988-05-20 1989-11-27 Sharp Corp Electrophotographic device
US6282400B1 (en) * 1998-06-01 2001-08-28 Canon Kabushiki Kaisha Image-forming apparatus and image forming method using a controlled dynamic frictional force between a cleaning blade and a photosensitive member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01293380A (en) * 1988-05-20 1989-11-27 Sharp Corp Electrophotographic device
JPH0719115B2 (en) * 1988-05-20 1995-03-06 シャープ株式会社 Electrophotographic device
US6282400B1 (en) * 1998-06-01 2001-08-28 Canon Kabushiki Kaisha Image-forming apparatus and image forming method using a controlled dynamic frictional force between a cleaning blade and a photosensitive member

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