JPH075794A - Cleaner for electrophotographic apparatus - Google Patents
Cleaner for electrophotographic apparatusInfo
- Publication number
- JPH075794A JPH075794A JP13702392A JP13702392A JPH075794A JP H075794 A JPH075794 A JP H075794A JP 13702392 A JP13702392 A JP 13702392A JP 13702392 A JP13702392 A JP 13702392A JP H075794 A JPH075794 A JP H075794A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- side seal
- positioning
- cleaning
- cleaner
- 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
Landscapes
- Cleaning In Electrography (AREA)
Abstract
Description
【0001】[0001]
【産業上の技術分野】本発明は、静電複写機や静電プリ
ンタ等のゼログラフィ方式に代表される電子写真に使用
される感光体ドラムのクリーニング装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for a photosensitive drum used in electrophotography represented by xerographic systems such as electrostatic copying machines and electrostatic printers.
【0002】[0002]
【従来の技術】静電複写機や静電プリンタなどの電子写
真装置は、感光体に電荷を与えて均一に帯電させる工
程、この感光体を画像情報に基づいて露光して部分的に
電荷を除き感光体上に潜像を形成する工程、感光体上に
形成された潜像をトナーを用いて転写可能なトナー像に
現像する工程、トナー像を紙などの転写材に転写する工
程を経て転写材に画像を形成している。このような電子
写真装置においては、転写工程を経た後にも、転写材に
転写されなかったトナーが感光体ドラムの表面に残留
し、次の複写サイクルを実施するに当たって不都合を生
じるので、転写の都度残留トナーを完全に除去しなけれ
ばならない。そのため転写工程を終えた感光体に残留す
るトナーを除去するクリーニング装置を転写工程と帯電
工程の間に設けている。2. Description of the Related Art In an electrophotographic apparatus such as an electrostatic copying machine or an electrostatic printer, a process of applying an electric charge to a photoconductor to uniformly charge the photoconductor, and exposing the photoconductor based on image information to partially charge the photoconductor. Except for the steps of forming a latent image on the photoconductor, developing the latent image formed on the photoconductor into a transferable toner image using toner, and transferring the toner image to a transfer material such as paper. An image is formed on the transfer material. In such an electrophotographic apparatus, the toner that has not been transferred to the transfer material remains on the surface of the photoconductor drum even after the transfer process, which causes inconvenience in performing the next copying cycle. Residual toner must be completely removed. Therefore, a cleaning device for removing the toner remaining on the photoconductor that has completed the transfer process is provided between the transfer process and the charging process.
【0003】図3は、このような電子写真装置のクリー
ニング装置付近の概要を示す概念図である。感光体ドラ
ム1の回転軸2が、ドラムユニット外枠3に軸受を介し
て支持されており、感光体ドラムは図示を省略した駆動
装置によって回転される。感光体ドラム1の表面の転写
工程を終えた位置に、ブレード支持部材4に支持された
ゴムなどの弾性体からなるクリーニングブレード5が接
触しており、感光体ドラムを回転することによってドラ
ム上の残留トナーをクリーニングブレード上に移しドラ
ム上から除去している。FIG. 3 is a conceptual diagram showing an outline of the vicinity of a cleaning device of such an electrophotographic apparatus. The rotary shaft 2 of the photoconductor drum 1 is supported by the drum unit outer frame 3 via bearings, and the photoconductor drum is rotated by a drive device (not shown). The cleaning blade 5 made of an elastic material such as rubber supported by the blade supporting member 4 is in contact with the surface of the photosensitive drum 1 at a position where the transfer process has been completed. The residual toner is transferred onto a cleaning blade and removed from the drum.
【0004】感光体ドラム1上から除去されたトナー
は、図示を省略した移送手段によって廃トナー容器に排
出される。感光体ドラム1上からブレード5上に除去さ
れた廃トナーがブレードの脇からこぼれて機内を汚すこ
とがないように、ブレードの両脇には例えばフェルトか
らなるサイドシール6が配置されている。上記のブレー
ドとサイドシール6は、ブレード支持部材4に設けたブ
レード位置決め部およびサイドシール部材位置決め部に
取付けられている。The toner removed from the photosensitive drum 1 is discharged to a waste toner container by a transfer means (not shown). Side seals 6 made of, for example, felt are disposed on both sides of the blade so that the waste toner removed from the photosensitive drum 1 onto the blade 5 does not spill from the sides of the blade and stain the inside of the machine. The blade and the side seal 6 are attached to the blade positioning portion and the side seal member positioning portion provided on the blade support member 4.
【0005】この方法では、ブレード5の長さ方向の寸
法に公差があるのでブレードとサイドシールとの間隔に
バラツキが生じ、間隔が大きくなると、トナーの漏れ量
が多くなり、間隔が小さくブレードにサイドシールが接
触するとブレードの動きを制限してしまい、クリーニン
グ不良を起してしまう問題があった。このため、サイド
シールの取付けに当たってシム等を間に挾んで間隔の幅
を規制していたが、この方法では、組立工数が多くなる
とともにクリーニングユニットの保守点検、部品交換の
都度再調整しなおさなければならない困難があった。In this method, since there is a tolerance in the lengthwise dimension of the blade 5, the distance between the blade and the side seal varies, and when the distance increases, the amount of toner leakage increases, and the distance decreases. When the side seals come into contact with each other, the movement of the blade is restricted, which causes a problem of cleaning failure. For this reason, when installing the side seal, the width of the gap was regulated by sandwiching a shim or the like between them, but this method increases the number of assembly steps and requires re-adjustment every time maintenance and inspection of the cleaning unit and replacement of parts are performed. There was a hard work to do.
【0006】[0006]
【発明が解決しようとする課題】本発明は、組立作業性
が著しく容易になると共に保守点検時ならびに部品交換
時の廃トナーの漏れが少なく作業性を向上させたブレー
ド組立体を備えた電子写真のクリーニング装置を提供す
ることを目的とする。本発明は、ブレードとサイドシー
ル間の間隔管理が確実に伝え、トナー漏れが少なく、常
に良好なクリーニング機能を維持できるブレード組立体
を備えた電子写真のクリーニング装置を提供することを
も目的とする。SUMMARY OF THE INVENTION The present invention provides an electrophotographic apparatus equipped with a blade assembly in which the assembling workability is remarkably facilitated and the waste toner is less leaked at the time of maintenance / inspection and part replacement to improve the workability. An object of the present invention is to provide a cleaning device. It is also an object of the present invention to provide an electrophotographic cleaning device including a blade assembly that reliably transmits a clearance control between a blade and a side seal, has a small amount of toner leakage, and can always maintain a good cleaning function. .
【0007】[0007]
【課題を解決するための手段】電子写真のクリーニング
装置において、ブレード位置決め部とサイドシール部材
位置決め部を有するブレード支持部材にブレードとサイ
ドシール部材を取付けるに当り、一方のサイドシール部
材位置決め部に位置決め部材を設けて、組立部品の公差
に起因する間隔のバラツキを吸収する。In mounting a blade and a side seal member on a blade supporting member having a blade positioning portion and a side sealing member positioning portion in an electrophotographic cleaning device, positioning is performed on one side sealing member positioning portion. A member is provided to absorb variations in spacing due to the tolerance of the assembled parts.
【0008】[0008]
【実施例】本発明による電子写真のクリーニング装置の
平面図を示す図1およびブレードとサイドシールの取付
構造の具体例を示す図2を用いて、本発明の構成を説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The constitution of the present invention will be described with reference to FIG. 1 showing a plan view of an electrophotographic cleaning apparatus according to the present invention and FIG. 2 showing a specific example of a mounting structure of a blade and a side seal.
【0009】図1に示すように、本発明のクリーニング
装置は、ドラムユニットの外枠3に回転可能に取付けら
れた感光体ドラム1、ブレード支持部材4、感光体ドラ
ムに接触するブレード5、サイドシール支持部材7,8
にそれぞれ取付けられ前記ブレードの両端部と微少間隔
を保って配置された2個のサイドシール6、一方のサイ
ドシール支持部材8を位置決めするサイドシール位置決
め部材15から構成される。As shown in FIG. 1, the cleaning device of the present invention comprises a photosensitive drum 1, which is rotatably mounted on an outer frame 3 of a drum unit, a blade supporting member 4, a blade 5 which contacts the photosensitive drum, and a side seal. Support members 7, 8
And two side seals 6 respectively attached to the both ends of the blade and spaced apart from each other by a small distance, and a side seal positioning member 15 for positioning one side seal supporting member 8.
【0010】ブレード5、および、例えばフェルトなど
からなるサイドシール6は、図2に示すように構成され
る。金属などの剛性の高い材料で作られたブレード支持
部材4は、中央部にブレード5取付用の例えば凹状に形
成されたブレード位置決め部10と、その両側にサイド
シール6取付用の例えばサイドシール位置決め部12,
14が配置される。ブレード位置決め部10の一方の端
は位置基準11として用いられ、例えば、ゴム、合成樹
脂などの弾性材料からなるクリーニングブレード5の長
手方向端部を片面突き当てして位置精度が確保される。
長手方向に伸びる長穴9を持ったサイドシール支持部材
8に取り付けられたサイドシール6は、位置決め部14
に長手方向に自由に移動可能に取付けられる。ブレード
位置決め部12の位置基準11と反対に位置する端部
は、最大公差を持つブレード5を受け入れられる位置に
設けられており、ブレードの長手方向の大きさのバラツ
キに対応している。The blade 5 and the side seal 6 made of, for example, felt are constructed as shown in FIG. The blade supporting member 4 made of a material having high rigidity such as metal has a blade positioning portion 10 for mounting the blade 5 in the central portion, which is formed in a concave shape, for example, and side seal positioning for mounting the side seals 6 on both sides thereof. Part 12,
14 are arranged. One end of the blade positioning portion 10 is used as a position reference 11, and for example, the longitudinal accuracy of the cleaning blade 5 made of an elastic material such as rubber or synthetic resin is abutted on one side to ensure positional accuracy.
The side seal 6 attached to the side seal supporting member 8 having the elongated hole 9 extending in the longitudinal direction is provided with the positioning portion 14
Mounted so as to be freely movable in the longitudinal direction. An end portion of the blade positioning portion 12, which is located opposite to the position reference 11, is provided at a position where the blade 5 having the maximum tolerance can be received, and corresponds to the variation in the size of the blade in the longitudinal direction.
【0011】サイドシール部材位置決め部14には、長
手方向に伸びた長穴16を有するサイドシール位置決め
部材15が長手方向に調節可能に取り付けられ、ブレー
ド5の公差に合わせてサイドシール位置決め部材15の
取付け位置を調節することができる。サイドシール支持
部材8はこのサイドシール位置決め部材15に押し当て
られて、ブレード5とサイドシール6との間に所定の微
小間隔を作り出す。A side seal positioning member 15 having an elongated hole 16 extending in the longitudinal direction is attached to the side seal member positioning portion 14 so as to be adjustable in the longitudinal direction, and the side seal positioning member 15 is adjusted in accordance with the tolerance of the blade 5. The mounting position can be adjusted. The side seal support member 8 is pressed against the side seal positioning member 15 to create a predetermined minute gap between the blade 5 and the side seal 6.
【0012】[0012]
【発明の効果】本発明は、ブレード支持部材4上に位置
精度をだして設けたブレード位置決め部10およびサイ
ドシール部材位置決め部12,14にブレード5および
サイドシール6を配置したので、各位置決め部に各パー
ツを突き当てて配置し固定するだけで容易に電子写真の
クリーニング装置を組み立てることができ、組立工数を
低減することができるとともに、クリーニングユニット
の保守点検、部品の交換の際にも同じ公差範囲のブレー
ドを交換することによって再度の調整を不要とすること
ができて作業性を向上させることができる。According to the present invention, since the blade 5 and the side seal 6 are arranged in the blade positioning portion 10 and the side seal member positioning portions 12 and 14 which are provided on the blade supporting member 4 with positional accuracy, the respective positioning portions are arranged. The electrophotographic cleaning device can be easily assembled simply by arranging and fixing each part to the, and assembling man-hours can be reduced, and the same can be applied to maintenance and inspection of the cleaning unit and replacement of parts. By exchanging the blades within the tolerance range, it is possible to eliminate the need for readjustment and improve workability.
【0013】また、本発明によれば組立時にブレードと
サイドシールの間の間隙の管理を確実に行なうことがで
きるとともに、サイドシールがブレードに接触する恐れ
がなくなりブレードの変形を防ぐことができるので、常
に良好なクリーニング機能を発揮することができる。Further, according to the present invention, the clearance between the blade and the side seal can be surely controlled at the time of assembly, and the side seal can be prevented from coming into contact with the blade, so that the deformation of the blade can be prevented. , Can always exert a good cleaning function.
【図1】 本発明のクリーニング装置の概念を示す平面
図。FIG. 1 is a plan view showing the concept of a cleaning device of the present invention.
【図2】 本発明のクリーニング装置のブレード支持部
材の構造を示す分解斜視図。FIG. 2 is an exploded perspective view showing the structure of a blade support member of the cleaning device of the present invention.
【図3】 従来のクリーニング装置の概念を示す平面
図。FIG. 3 is a plan view showing the concept of a conventional cleaning device.
1 感光体ドラム1、2 回転軸、3 ドラムユニット
外枠、4 ブレード支持部材、5 クリーニングブレー
ド、6 サイドシール、7,8 サイドシール支持部
材、9,16 長穴、10 ブレード位置決め部、1
1,13 位置基準、12,14サイドシール位置決め
部、15 サイドシール位置決め部材。DESCRIPTION OF SYMBOLS 1 Photoconductor drum 1, 2 Rotating shaft, 3 Drum unit outer frame, 4 Blade support member, 5 Cleaning blade, 6 Side seal, 7,8 Side seal support member, 9,16 Long hole, 10 Blade positioning part, 1
1, 13 Position reference, 12, 14 Side seal positioning part, 15 Side seal positioning member.
Claims (1)
定された感光体ドラムに接するクリーニングブレードの
両側にサイドシールを配置してクリーニングブレードの
両端位置からのトナー漏れを防止した電子写真のクリー
ニング装置において、 ブレード支持部材に設けたブレード支持部およびその両
側に設けた2個のサイドシール部材位置決め部と、 該サイドシール部材位置決め部に調節可能に設けられた
サイドシール部材位置決め部材とを設けたことを特徴と
する電子写真のクリーニング装置。1. An electrophotographic cleaning device in which side seals are arranged on both sides of a cleaning blade that is in contact with a photosensitive drum fixed to a blade supporting member with positional accuracy to prevent toner leakage from both ends of the cleaning blade, A blade support part provided on the blade support member, two side seal member positioning parts provided on both sides of the blade support part, and a side seal member positioning member adjustably provided on the side seal member positioning part are provided. And an electrophotographic cleaning device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13702392A JPH075794A (en) | 1992-05-28 | 1992-05-28 | Cleaner for electrophotographic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13702392A JPH075794A (en) | 1992-05-28 | 1992-05-28 | Cleaner for electrophotographic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH075794A true JPH075794A (en) | 1995-01-10 |
Family
ID=15189036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13702392A Pending JPH075794A (en) | 1992-05-28 | 1992-05-28 | Cleaner for electrophotographic apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH075794A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006062229A1 (en) * | 2004-12-10 | 2006-06-15 | Ricoh Company, Limited | Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner |
JP2006201471A (en) * | 2005-01-20 | 2006-08-03 | Kyocera Mita Corp | Cleaning device of image forming apparatus |
US7711286B2 (en) | 2006-10-26 | 2010-05-04 | Kyocera Mita Corporation | Leakage prevention member and cleaning device |
US20100189482A1 (en) * | 2009-01-26 | 2010-07-29 | Kyocera Mita Corporation | Drum unit and image-forming apparatus including the same |
US20130129378A1 (en) * | 2011-11-09 | 2013-05-23 | Canon Kabushiki Kaisha | Cartridge and unit |
JP2019008232A (en) * | 2017-06-28 | 2019-01-17 | 京セラドキュメントソリューションズ株式会社 | Cleaning device and image forming apparatus |
-
1992
- 1992-05-28 JP JP13702392A patent/JPH075794A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006062229A1 (en) * | 2004-12-10 | 2006-06-15 | Ricoh Company, Limited | Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner |
US7826786B2 (en) | 2004-12-10 | 2010-11-02 | Ricoh Company, Limited | Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner |
JP2006201471A (en) * | 2005-01-20 | 2006-08-03 | Kyocera Mita Corp | Cleaning device of image forming apparatus |
JP4667048B2 (en) * | 2005-01-20 | 2011-04-06 | 京セラミタ株式会社 | Image forming apparatus cleaning device |
US7711286B2 (en) | 2006-10-26 | 2010-05-04 | Kyocera Mita Corporation | Leakage prevention member and cleaning device |
US20100189482A1 (en) * | 2009-01-26 | 2010-07-29 | Kyocera Mita Corporation | Drum unit and image-forming apparatus including the same |
US8660459B2 (en) * | 2009-01-26 | 2014-02-25 | Kyocera Document Solutions Inc. | Drum unit having side seals and image-forming apparatus including the same |
US20130129378A1 (en) * | 2011-11-09 | 2013-05-23 | Canon Kabushiki Kaisha | Cartridge and unit |
US9069291B2 (en) * | 2011-11-09 | 2015-06-30 | Canon Kabushiki Kaisha | Cartridge and unit, for use with an image bearing member, having a seal member that seals a gap between a blade member and a frame |
US9529306B2 (en) | 2011-11-09 | 2016-12-27 | Canon Kabushiki Kaisha | Cartridge and unit with injection molded seal member |
US9971282B2 (en) | 2011-11-09 | 2018-05-15 | Canon Kabushiki Kaisha | Cartridge having a seal member filling a gap between a frame and a blade member |
JP2019008232A (en) * | 2017-06-28 | 2019-01-17 | 京セラドキュメントソリューションズ株式会社 | Cleaning device and image forming apparatus |
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