JPH0644179B2 - Cleaning device - Google Patents
Cleaning deviceInfo
- Publication number
- JPH0644179B2 JPH0644179B2 JP59209900A JP20990084A JPH0644179B2 JP H0644179 B2 JPH0644179 B2 JP H0644179B2 JP 59209900 A JP59209900 A JP 59209900A JP 20990084 A JP20990084 A JP 20990084A JP H0644179 B2 JPH0644179 B2 JP H0644179B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- elastic blade
- longitudinal direction
- elastic
- supporting member
- 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.)
- Expired - Lifetime
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
- G03G21/0029—Details relating to the blade support
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Description
【発明の詳細な説明】 （１）発明の目的 （産業上の利用分野） この発明は、画像形成装置の像担持体などの移動体か
ら、該移動体上の残留物を除去するためのブレード装
置、このブレード装置を使用するクリーニング装置及び
該クリーニング装置を使用する画像形成装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention (Industrial field of application) The present invention relates to a blade for removing a residue on a moving body such as an image carrier of an image forming apparatus. The present invention relates to an apparatus, a cleaning apparatus that uses this blade apparatus, and an image forming apparatus that uses the cleaning apparatus.
（従来技術と解決すべき課題） 走行する像担持体表面に可転写トナー像を静電的に形成
した後、このトナー像を転写材に転写する工程をくり返
す周知の画像形成装置にあっては、転写後像担持体に残
る残留トナーを次工程開始前に充分に除去しておくこと
が安定した画像を得るための必須要件である。(Problems to be Solved by Prior Art) In a known image forming apparatus, the process of electrostatically forming a transferable toner image on the surface of a moving image carrier and then transferring the toner image onto a transfer material is repeated. Is an essential requirement for obtaining a stable image by sufficiently removing the residual toner remaining on the image carrier after transfer before starting the next step.
上記残留トナー除去手段としては、従来からウレタンゴ
ムなどの弾性材からなるクリーニングブレード、ファー
ブラシ、不織布などからなるウェブなどを用いるものが
幾多提案されているが、近来、構成が簡単で小型であり
トナー除去機能もすぐれているので画像形成装置の小
型、コンパクト化傾向と相俟って、クリーニングブレー
ドがひろく実用されるようになってきている。As the residual toner removing means, there have conventionally been proposed a number of means using a cleaning blade made of an elastic material such as urethane rubber, a fur brush, a web made of a non-woven fabric, etc., but recently, the configuration is simple and small in size. Since the toner removing function is also excellent, the cleaning blade has come into widespread practical use in combination with the trend toward smaller and more compact image forming apparatuses.
クリーニングブレードは前述のようにゴムなどの弾性材
料からなっており、これを剛性材からなる支持部材に一
体に取着し、該支持部材を画像形成装置、もしくはこれ
に配したクリーニング装置に取り付けるとともに、クリ
ーニングブレードの自由端縁を像担持体に圧接して、そ
の表面のトナーをかき落とすように構成するのが普通で
ある。As described above, the cleaning blade is made of an elastic material such as rubber. The cleaning blade is integrally attached to a supporting member made of a rigid material, and the supporting member is attached to an image forming apparatus or a cleaning device arranged on the image forming apparatus. It is usual that the free edge of the cleaning blade is pressed against the image carrier to scrape off the toner on the surface.
第１Ａ図は、このようなクリーニングブレートと支持部
材とからなるクリーニング部材を配したクリーニング装
置を複写機に適用した場合を示すその概略側面図であ
る。FIG. 1A is a schematic side view showing a case where a cleaning device having a cleaning member composed of such a cleaning plate and a supporting member is applied to a copying machine.
回転円筒状に形成された像担持体（感光体）１０の周辺
には、その表面光導電層を帯電させる帯電器１１、これ
に光像を付与して静電潜像を形成するレンズアレイ１
２、該潜像を可転写トナー像とする現像器１３、転写材
を転写帯電器１５を配した転写部位に供給する搬送路１
４などが配されている。これらは従来から周知の構成で
あるので、これらによる画像形成過程についてはこれ以
上の説明を省略する。Around the image carrier (photoreceptor) 10 formed in the shape of a rotating cylinder, a charger 11 for charging the surface photoconductive layer, and a lens array 1 for applying an optical image thereto to form an electrostatic latent image.
2, a developing device 13 for converting the latent image into a transferable toner image, and a conveying path 1 for supplying a transfer material to a transfer portion provided with a transfer charger 15.
4 etc. are arranged. Since these are well-known structures in the related art, further description of the image forming process by them will be omitted.
感光体の走行方向に（矢印Ａ方向）にみて転写帯電器１
５の下流側にはクリーニング装置１６が配されており、
該クリーニング装置にはクリーニング部材１７が取着し
てある。Transfer charger 1 as viewed in the traveling direction of the photoconductor (direction of arrow A)
A cleaning device 16 is provided on the downstream side of 5,
A cleaning member 17 is attached to the cleaning device.
クリーニングブレート２０は、クリーニング装置の筐体
に取着された支持部材３０と一体に設けてあり、その一
つの端縁が感光体１０表面に圧接している。The cleaning plate 20 is integrally provided with a support member 30 attached to the casing of the cleaning device, and one edge of the cleaning plate 20 is in pressure contact with the surface of the photoconductor 10.
このような構成から容易に理解できるように、弾性材か
らなるクリーニングブレート２０には、回転する感光体
によって支持部材から剥離されるような力がかかるの
で、両者の接合は可及的に強固にしておかないとクリー
ニング不良などの欠陥を生ずる。As can be easily understood from such a configuration, the cleaning plate 20 made of an elastic material is subjected to a force such that it is peeled off from the supporting member by the rotating photoconductor, so that the bonding between the two is made as strong as possible. Failure to do so will result in defects such as poor cleaning.
支持部材に弾性材を取着する手段としては、従来支持部
材の他に第２の支持部材を用い、両者の間にブレードを
挟持して全体をビスで固定したり、支持部材にブレード
を接着剤で接着したり、乃至は支持部材とブードとを一
体にモールド成型する手段がとられている。As a means for attaching the elastic material to the support member, a second support member is used in addition to the conventional support member, and the blade is sandwiched between the two to fix the whole with screws, or the blade is bonded to the support member. Means are used for bonding with an agent or for integrally molding the support member and the bood.
しかしながら、ビス止めによる手段は、その締着の度合
いによって比較的柔軟なブレードの押圧変形の度合いが
不均一となりこれが感光体の長手方向全長にわたる圧力
を不整ならしめるので好ましくない。However, the means by means of screws is not preferable because the degree of pressing and deformation of the relatively flexible blade becomes non-uniform due to the degree of tightening, and this makes the pressure over the entire length in the longitudinal direction of the photoconductor irregular.
また、接着剤を用いたり、一体にモールド成型する手段
も、接着剤の接着力の安定性が欠けることがあり、モー
ルド成型するものは両者の接合力に欠けることがあり、
クリーニング機能の速やかな低下をまねくおそれがあっ
た。In addition, the use of an adhesive or a means of integrally molding may lack the stability of the adhesive strength of the adhesive, and the thing to be molded may lack the bonding strength between the two.
There was a possibility that the cleaning function would be rapidly deteriorated.
本発明はこのような現状に対処すべくなされたものであ
って、金属などの剛性材料からなる支持部材とゴムなど
の弾性材からなるクリーニングブレートとの接合を強固
にして長期にわて安定したクリーニング機能を維持する
ことの出来るクリーニング装置を提供することを目的と
するものである。The present invention has been made to cope with such a situation as described above, and the joining between a support member made of a rigid material such as metal and a cleaning plate made of an elastic material such as rubber is made strong and stable over a long period of time. It is an object of the present invention to provide a cleaning device that can maintain the cleaning function.
（２）発明の構成 （課題を解決する技術手段、その作用） 上記の目的を達成するため、本発明は、弾性ブレード
と、この弾性ブレードを長手方向に沿って支持する支持
部材とを有し、画像形成装置に用いられるブレード装置
において、上記弾性ブレードの長手方向の長さを上記支
持部材の長手方向長さよりも長くして、上記弾性ブレー
ドで上記支持部材長手方向両端部を覆ったことを特徴と
するブレード装置、または、弾性ブレードと、この弾性
ブレードを長手方向に沿って支持する支持部材と、残留
物を受ける容器とを有し、画像形成装置に用いられるク
リーニング装置において、上記弾性ブレードの長手方向
長さを上記支持部材の長手方向長さよりも長くして、上
記弾性ブレードで上記支持部材長手方向両端部を覆った
弾性ブレードを移動体に当接させ移動体表面から除去し
た残留物を上記容器で受けることを特徴とするクリーニ
ング装置、または、像担持体と、この像担持体に現像像
を形成する手段と、転写材に現像像を転写する転写手段
と、像担持体に当接する弾性ブレードと、この弾性ブレ
ードを長手方向に沿って保持する保持部材とを有する画
像形成装置において、上記弾性ブレードの長手方向の長
さを上記支持部材のなかが手方向長さよりも長くして、
上記弾性ブレードで上記像担持体長手方向両端部を覆っ
た弾性ブレードを上記像担持体に当接させて上記転写手
段によって転写材に転写されずに上記像担持体表面に残
留する残留現像剤を除去することを特徴とする画像形成
装置である。(2) Configuration of the Invention (Technical Means for Solving the Problem and Actions Thereof) In order to achieve the above object, the present invention has an elastic blade and a support member for supporting the elastic blade in the longitudinal direction. In a blade device used for an image forming apparatus, the length of the elastic blade in the longitudinal direction is longer than the length of the supporting member in the longitudinal direction, and the elastic blade covers both ends of the supporting member in the longitudinal direction. A cleaning device used in an image forming apparatus, comprising: a blade device characterized by the above, or an elastic blade, a supporting member for supporting the elastic blade in a longitudinal direction, and a container for receiving a residue, The length in the longitudinal direction of the support member is longer than the length in the longitudinal direction of the supporting member, and the elastic blade covers both ends of the supporting member in the longitudinal direction with the elastic blade. A cleaning device, characterized in that the container receives the residue removed from the surface of the moving body by bringing it into contact with the moving body, or an image carrier, means for forming a developed image on the image carrier, and developing on the transfer material. In an image forming apparatus having a transfer unit that transfers an image, an elastic blade that abuts an image carrier, and a holding member that holds the elastic blade in the longitudinal direction, the length of the elastic blade in the longitudinal direction is Make the support member longer than the length in the hand direction,
The elastic blade whose longitudinal ends are covered with the elastic blade is brought into contact with the image carrier to remove residual developer remaining on the surface of the image carrier without being transferred to the transfer material by the transfer means. The image forming apparatus is characterized by being removed.
このように形成することによって、クリーニングブレー
トがこれを支持する支持部材から剥離することを有効に
阻止して、長期にわたって安定したクリーニングを行な
うことが出来る。By forming in this way, it is possible to effectively prevent the cleaning plate from peeling off from the supporting member that supports it, and to perform stable cleaning for a long period of time.
（実施例の説明） 以下に説明する実施例は電子写真複写機、同プリンタな
ど静電転写プロセスを利用する画像形成装置に用いられ
るクリーニング装置である。とくに剛性材料からなる支
持部材の一縁に弾性材料からなるクリーニングブレード
を一体的に接合してなるクリーニング装置であって、前
記両者の接合面における支持部材表面を凹凸状として該
接合面積を大きくしたものである。またさらに、長手方
向にみて、支持部材両端面よりもクリーニングブレート
が外方に突出するように形成したクリーニング装置であ
る。(Description of Embodiments) The embodiments described below are cleaning devices used in an image forming apparatus that uses an electrostatic transfer process, such as an electrophotographic copying machine and a printer. In particular, a cleaning device in which a cleaning blade made of an elastic material is integrally joined to one edge of a support member made of a rigid material, and the surface of the support member at the joining surface of the both is made uneven to increase the joining area. It is a thing. Furthermore, the cleaning device is formed so that the cleaning plate protrudes outward from both end surfaces of the support member when viewed in the longitudinal direction.
第１Ｂ図は、第１Ａ図に示したクリーニング部材１７の
構成を示す一部の拡大斜面図であって、支持部材３０の
一縁にクリーニングブレート２０が接合されて一体に形
成してある。FIG. 1B is a partial enlarged perspective view showing the configuration of the cleaning member 17 shown in FIG. 1A, and the cleaning plate 20 is joined to one edge of the support member 30 to be integrally formed.
このようなクリーニング部材を実用した場合、これに同
図矢印Ｂ方向の力がかかってブレードが剥離傾向となる
とき、これに逆らう力は、両者が直接接触している部分
の面積Ｓ１＋Ｓ２＋Ｓ３の大きさに関係し、たとえば同
一の接着剤を用いた場合前記面積が大きいほうが結合力
が大となることは自明である。When such a cleaning member is put into practical use, when a force in the direction of arrow B in the figure is applied to the blade and the blade tends to peel off, the force against this is the area S 1 + S 2 of the portion in which both are in direct contact. It is self-evident that the larger the area, the larger the bonding force with respect to the size of + S 3 , for example, when the same adhesive is used.
第２Ａ図は支持部材３とクリーニングブレート２との接
触面において、前者表面に多数の凹凸をサンドブラスト
処理、化学処理などによって形成して、接触面積Ｓ１′
＋Ｓ２′＋Ｓ３′を前記面積Ｓ１＋Ｓ２＋Ｓ３よりも実
質的に大きくし、これによって接合力を大きくしたもの
である。FIG. 2A shows that in the contact surface between the support member 3 and the cleaning plate 2, a large number of irregularities are formed on the former surface by sandblasting, chemical treatment, etc., and the contact area S 1 ′
+ S 2 ′ + S 3 ′ is substantially larger than the area S 1 + S 2 + S 3 and thereby the joining force is increased.
さらにこの実施態様において、第２Ｂ図に示す端面図か
ら分かるように、支持部材の長さをクリーニングブレー
トのそれよりも短くし、ブレード材の端部が支持部材の
端部よりもｄだけ長くしておくことによってより強固な
結合力が得られる。Further, in this embodiment, as can be seen from the end view shown in FIG. 2B, the length of the support member is shorter than that of the cleaning plate, and the end portion of the blade member is longer than the end portion of the support member by d. A stronger binding force can be obtained by keeping it.
このような構成は、とくに支持部材端面をブレードで囲
繞するように一体にモールド成型する場合に好適であ
る。Such a configuration is particularly suitable for integrally molding so that the end surface of the support member is surrounded by the blade.
第３図は当接面の表面積を拡大する他の仕方を示す実施
態様であって、支持部材３の、フレード材２が直接当接
する部分に多数の凹凸条３ａを形成して当接面積の拡大
をはかっている。FIG. 3 is an embodiment showing another method for increasing the surface area of the contact surface, in which a large number of uneven ridges 3a are formed in the portion of the support member 3 which directly contacts the flade material 2 to form a contact area. We are trying to expand.
（３）発明の効果 以上詳述したように、本発明は、弾性クリーニングブレ
ートと支持部材との接合力を大きくしたので、長期にわ
たって安定したクリーニングを遂行することができる。(3) Effects of the Invention As described above in detail, since the joining force between the elastic cleaning plate and the supporting member is increased in the present invention, stable cleaning can be performed for a long period of time.
第１Ａ図は複写機の要部の概略側面図 第１Ｂ図は同上に用いられるクリーニング部材の一部の
拡大斜面図、 第２Ａ図は本発明によるクリーニング部材の一部の拡大
斜面図、 第２Ｂ図は同上一部の側面図、 第３図は他の実施態様を示す一部の拡大斜面図である。 １０……感光体、１６……クリーニング装置、１７……
クリーニング部材、２、２０……クリーニングブレー
ド、３、３０……支持部材。FIG. 1A is a schematic side view of a main part of a copying machine. FIG. 1B is an enlarged perspective view of a part of a cleaning member used therein, FIG. 2A is an enlarged perspective view of a part of a cleaning member according to the present invention, and FIG. 2B. The figure is a partial side view of the same as above, and FIG. 3 is a partial enlarged perspective view showing another embodiment. 10 ... Photoconductor, 16 ... Cleaning device, 17 ...
Cleaning member, 2, 20 ... Cleaning blade, 3, 30 ... Support member.
Claims (6)
方向に沿って支持する支持部材とを有し、画像形成装置
に用いられるブレード装置において、 上記弾性ブレードの長手方向の長さを上記支持部材の長
手方向の長さよりも長くして、上記弾性ブレードで上記
支持部材長手方向両端部を覆ったことを特徴とするブレ
ード装置。1. A blade device for use in an image forming apparatus, comprising: an elastic blade; and a supporting member for supporting the elastic blade in a longitudinal direction thereof. The length of the blade device is longer than the length of the support member, and both ends of the support member in the lengthwise direction are covered with the elastic blade.
請求の範囲第１項記載のブレード装置。2. The blade device according to claim 1, wherein the elastic blade is a metal plate.
モールド成型されている特許請求の範囲第１項記載のブ
レード装置。3. The blade device according to claim 1, wherein the elastic blade and the support member are integrally molded.
る面が凹凸形状を有する特許請求の範囲第１項記載のブ
レード装置。4. The blade device according to claim 1, wherein a surface of the supporting member that supports the elastic blade has an uneven shape.
方向に沿って支持する支持部材と、移動体上の残留物を
受ける容器とを有し、画像形成装置に用いられるクリー
ニング装置において、 上記弾性ブレードの長手方向の長さを上記支持部材の長
手方向の長さよりも長くして、上記弾性ブレードで上記
支持部材長手方向両端部を覆った弾性ブレードを移動体
に当接させて移動体表面から除去した残留物を上記容器
で受けることを特徴とするクリーニング装置。5. A cleaning device used in an image forming apparatus, comprising: an elastic blade, a supporting member for supporting the elastic blade in a longitudinal direction, and a container for receiving a residue on a moving body. The length of the blade in the longitudinal direction is made longer than the length of the supporting member in the longitudinal direction, and the elastic blades covering the both ends of the supporting member in the longitudinal direction of the elastic blade are brought into contact with the moving body to move from the moving body surface. A cleaning device, wherein the removed residue is received by the container.
する手段と、転写材に現像像を転写する転写手段と、像
担持体に当接する弾性ブレードと、この弾性ブレードを
長手方向に沿って保持する保持部材とを有する画像形成
装置において、 上記弾性ブレードの長手方向の長さを上記支持部材の長
手方向長さよりも長くして、上記弾性ブレードで上記支
持部材長手方向両端部を覆った弾性ブレードを上記像担
持体に当接させて上記転写手段によって転写材に転写さ
れずに上記像担持体表面に残留する残留現像剤を除去す
ることを特徴とする画像形成装置。6. An image carrier, means for forming a developed image on the image carrier, transfer means for transferring the developed image to a transfer material, an elastic blade in contact with the image carrier, and the elastic blade being long An image forming apparatus having a holding member for holding along the direction, wherein the length of the elastic blade in the longitudinal direction is made longer than the length of the supporting member in the longitudinal direction, and the elastic blade is provided at both ends of the supporting member in the longitudinal direction. An image forming apparatus characterized in that an elastic blade covering the above is brought into contact with the image carrier to remove residual developer remaining on the surface of the image carrier without being transferred to a transfer material by the transfer means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59209900A JPH0644179B2 (en) | 1984-10-08 | 1984-10-08 | Cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59209900A JPH0644179B2 (en) | 1984-10-08 | 1984-10-08 | Cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6188290A JPS6188290A (en) | 1986-05-06 |
| JPH0644179B2 true JPH0644179B2 (en) | 1994-06-08 |
Family
ID=16580501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59209900A Expired - Lifetime JPH0644179B2 (en) | 1984-10-08 | 1984-10-08 | Cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644179B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002072672A (en) * | 2000-08-28 | 2002-03-12 | Kyoritsu:Kk | Toner blade and method for manufacturing the same |
| JP5461825B2 (en) * | 2008-11-05 | 2014-04-02 | 株式会社ブリヂストン | Blade for OA |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5875182A (en) * | 1981-10-29 | 1983-05-06 | Matsushita Electric Ind Co Ltd | Cleaning device for electrophotography |
-
1984
- 1984-10-08 JP JP59209900A patent/JPH0644179B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5875182A (en) * | 1981-10-29 | 1983-05-06 | Matsushita Electric Ind Co Ltd | Cleaning device for electrophotography |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6188290A (en) | 1986-05-06 |
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