JPS58160974A - Cleaning device of electrophotographic apparatus - Google Patents
Cleaning device of electrophotographic apparatusInfo
- Publication number
- JPS58160974A JPS58160974A JP4286882A JP4286882A JPS58160974A JP S58160974 A JPS58160974 A JP S58160974A JP 4286882 A JP4286882 A JP 4286882A JP 4286882 A JP4286882 A JP 4286882A JP S58160974 A JPS58160974 A JP S58160974A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- blade
- holding member
- grade
- cleaning 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.)
- Granted
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)
- Cleaning In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電子写真装置において感光体上の未転写トナー
を清掃するクリーニング装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning device for cleaning untransferred toner on a photoreceptor in an electrophotographic apparatus.
従来、ブレード保持手段がクリーニングブレードの像担
持体への接触線における接平面とクリーニングブレード
とＯ″＆す角度のうち、像担持体未りリー二ンダ儒の角
度が鋭角となるようにクリーニングブレードを保持して
なるクリーニング装置（通称ワイパーブレードクリーニ
ング方式以下ワイパ一方式と称す）においては、ブレー
ド保持手段として弾性を有するクリーニングブレードを
第１保持部材と第２保持部材とではさみ込み、スクリュ
ーで両保持部材同志を締めつけるか、ないしは単一保持
部材にクリーニングブレードを接着することＫよ〕クリ
ーニンググレードを直線状態で保持する手段が実施され
てきたが、上記保持方法には
■ スクリューを締めつけるととにより保持部材が長手
方向に彎−してしまう。Conventionally, the blade holding means holds the cleaning blade so that the angle between the line of contact between the cleaning blade and the image carrier and the cleaning blade is an acute angle. In a cleaning device (commonly referred to as a wiper blade cleaning method hereinafter referred to as a wiper one type), an elastic cleaning blade is sandwiched between a first holding member and a second holding member as a blade holding means, and both are held together by a screw. Methods of holding the cleaning grade in a straight line have been implemented, such as tightening the holding members together or gluing the cleaning blade to a single holding member. The holding member is curved in the longitudinal direction.
■ 締めつけ部分が収縮してブレードエツジ妙Ｘ引っ込
んでし重う。■ The tightening part contracts and the blade edge retracts and becomes heavy.
■ ブレード厚のバラツキを吸収で會１に４／％。■ Absorbs variations in blade thickness by 4% per match.
Ｏ１１着のむずかしさ等によるクリ、−＝ｙグエツジの
直線性不良が発生する。Due to the difficulty of landing O11, etc., poor linearity of the -=y edge occurs.
等の欠点があった。There were drawbacks such as.
、すなわち、感光体への均一なる当接状態が得られず上
記直線性不喪部からトナーが通シ抜けてしまう仁とによ
りクリー二／グ不良が発生してしまうという状況が見ら
れ九。That is, a situation has been observed in which a uniform state of contact with the photoconductor cannot be obtained and toner passes through the linear non-containing portion, resulting in cleaning defects.
またクリーニングブレードの交換においても保持部材が
装置本体に直接スクリュー等によシ固定されている丸め
装置本体を機械から外し、クリーニングブレードの交換
を行うという画情な作業があった。In addition, when replacing the cleaning blade, there is a tedious task of removing the rounding device main body, whose holding member is directly fixed to the device main body by screws or the like, from the machine and replacing the cleaning blade.
また、クリーニングブレードが保持手段に接着されてい
る場合にはこのクリーニングブレードの交換は保持手段
ごとの交換となるといった非常にコストの高いものにな
っていた。Further, when the cleaning blade is bonded to the holding means, the cleaning blade must be replaced for each holding means, which is extremely costly.
本発明はよ記の事情に鑑みなされ喪ものであって、その
目的とするところは、従来装置の欠点であつ九クリーニ
ングエツジの直線性不良、ブレード保持部材の波打ち、
クリーニングブレードの厚さのバラツキ吸収不可が解消
できるばかりかクリーニングブレードの交換作業が容品
になる電子１真装置のクリーニング装置を提供すること
Ｋある。The present invention was developed in view of the above-mentioned circumstances, and its purpose is to address the shortcomings of the conventional device, such as poor linearity of the cleaning edge, waving of the blade holding member, etc.
To provide a cleaning device for an electronic device that not only solves the problem of not being able to absorb variations in the thickness of a cleaning blade but also makes replacing the cleaning blade a breeze.
以下、本発明を図面を参照して説明する。Hereinafter, the present invention will be explained with reference to the drawings.
図面中１は儂担持体りとしての感光体、２はクリーニン
グ装置である。In the drawings, reference numeral 1 indicates a photoreceptor as a carrier, and reference numeral 2 indicates a cleaning device.
このクリーニング装置２はブレード保持部材３を備えて
いる。このブレード保持部材３にはブレード装入部４が
形成してあシ、このブレード装入ｓ４は第１の直線平行
部５と第２の直線平行＠６とよシ成シ、第１．第２の直
線平行部５．６の中間が屈一部フ、８になっている。This cleaning device 2 includes a blade holding member 3. This blade holding member 3 is formed with a blade insertion part 4, and this blade insertion part s4 is formed by a first straight parallel part 5 and a second straight parallel part @6. The middle of the second linear parallel portion 5.6 is a curved portion 8.
そして第１の直線平行部５と第２の直線平行部６とのな
す角度−は＋ＳｍＳ度である。ｔた、ブレード装入部４
の底部には位置決め面９が形成しである。ブレード襞入
部４内にクリーニングブレード１０が挿入してあシ、ク
リーニンググレード１０のクリーニングエツジ１５は前
記感光体ＩＫｍ接している。The angle - formed by the first straight parallel part 5 and the second straight straight parallel part 6 is +SmS degrees. Blade loading section 4
A positioning surface 9 is formed at the bottom. A cleaning blade 10 is inserted into the blade fold insertion part 4, and a cleaning edge 15 of cleaning grade 10 is in contact with the photoreceptor IKm.
仁のクリーニングブレード１０の厚さは、プレード装入
部４０間隔よ〕わずかに小さくしである。そして、クリ
ーニングブレードｌＯの端面１１は前記位置決め面９に
当接してお〉、またクリーニングブレード１０は第１．
第２の直線平行部５．６に沿って屈曲されていてクリー
ニングブレードＩＯの後端部上縁のエツジ１１１２は第
１の直線平行ｓ５の上面５ｇ１（蟲接しクリー二ｙグブ
レード１ｏの下面１０ａは下側ＯＳＳ部８に当接しまた
クリーニングブレードＩＯの上面１０には第２の直線平
行部６の開口部１３の上縁部１３ＡＫ！！接していて開
口部１３の下縁部＋３６とクリーニングブレード１０の
下面１０＠との間には隙間１４が形成されている。上記
の状態は、クリーニングブレード１０がプレー）’ｆｆ
ｌ持部材３に保持されて感光体１が矢印方向に移動し、
所望のクリーニング状１１になつ九場合である。The thickness of the cleaning blade 10 is slightly smaller than the spacing between the blade inserts 40. The end surface 11 of the cleaning blade 10 is in contact with the positioning surface 9, and the cleaning blade 10 is in contact with the first.
The edge 1112 at the upper edge of the rear end of the cleaning blade IO, which is bent along the second linear parallel portion 5.6, is in contact with the upper surface 5g1 of the first linear parallel portion s5, and the lower surface 10a of the cleaning blade 1o is bent along the second linear parallel portion 5.6. The upper edge 13AK!! of the opening 13 of the second linear parallel portion 6 is in contact with the upper surface 10 of the cleaning blade IO, and the lower edge +36 of the opening 13 and the cleaning blade 10 are in contact with the lower OSS portion 8. A gap 14 is formed between the lower surface 10@ of the cleaning blade 10 and the bottom surface 10 of the cleaning blade 10.
The photoreceptor 1 is moved in the direction of the arrow while being held by the holding member 3,
This is the case when the desired cleaning shape 11 is achieved.
すなわちクリーニンググレード１０はグレード保持部材
３に３点の接面ム、Ｂ、Ｃで係合されるととＫなる。That is, when the cleaning grade 10 is engaged with the grade holding member 3 at three contact points B and C, the contact surface becomes K.
この場合り卜４ングブレード１０は図示しない手段にで
ある適切な値の圧接力を受けている丸め、感光体１０進
行方向の後方へ彎曲することＫなるが、ブレード保持部
材３を上記の如くの構成にすることによ〉、上記３つの
接面入。In this case, the cutting blade 10 is subjected to a pressing force of an appropriate value by a means not shown, and is bent backward in the direction in which the photoreceptor 10 travels. By configuring the above three interfaces.
Ｂ、Ｃで摩擦的に係合されるため感光体１の移動により
ブレード保持部材３から抜けるようなことはない。Since they are frictionally engaged at B and C, they will not come off from the blade holding member 3 due to movement of the photoreceptor 1.
なお、グレード装入ｓ４の直線平行部５．６は２つに限
らず、第４図に示すようＫこれ以上あってもよく、すな
わち屈曲部８がｌケｙ９ｒＫ限らず複数ケ所あってもよ
い。Note that the number of straight parallel parts 5.6 of the grade charging s4 is not limited to two, and there may be more than K as shown in FIG. .
そして各屈一部８において新たに構成される屈−角ｇｉ
Ｏ總和１ｇｉ が ”ｏ＜ｘａｉ≦４５＠
の範囲であれば上記と同様の効果が得られる。Then, a bending angle gi newly formed in each bending part 8
If O sum 1gi is in the range of ``o<xai≦45@, the same effect as above can be obtained.
以上はブレード保持部材３側からの主な特徴について述
べ九が、クリーニングブレード１゜かもみた特徴につい
て考えてみる。The above describes the main features from the side of the blade holding member 3, but let's consider the features from the perspective of the cleaning blade 1°.
屈曲角−ｉは常に感光体Ｉの進行方向の手前側に作られ
る角度でふる。The bending angle -i is always set to the front side of the photoreceptor I in the traveling direction.
この状態で感光体１が移動、停止を繰り返した場合、感
光体１が停止状１！！（クリーニングブレード１０が感
光体Ｉから離れ良状態を含む）ではクリーニングブレー
ド１０の屈曲部分２０は常に収縮状態になっている。い
づ九ん感光体１が矢印方向に移動し始めると前記屈曲部
分２０を繰シ返すことになる。If the photoconductor 1 moves and stops repeatedly in this state, the photoconductor 1 is in the stopped state 1! ! (Including a good state in which the cleaning blade 10 is separated from the photoreceptor I), the bent portion 20 of the cleaning blade 10 is always in a contracted state. When the photoreceptor 1 begins to move in the direction of the arrow, it repeats the bending portion 20.
ところが前記屈曲角αｉが感光体１の進行方向の彼方側
に作られた場合、第５図に示す如く感光体１の移動によ
ｐ常にクリーニンググレード１０が抜は易い方向に力を
受けることと、なる。However, if the bending angle αi is made on the far side in the traveling direction of the photoreceptor 1, as shown in FIG. ,Become.
ｆ九この構成ではクリーニングブレード１０の屈曲部分
２０は感光体１が停止状態では伸長しているが、この状
態から前述の如く感光体１のを繰り返すこととなる。す
なわち基準状態で屈曲部分２０が伸長状態の場合にはク
リーニングブレード１０の動きそのものがブレード保持
部材３から抜ける方向に作用していることが理解され為
。f9 In this configuration, the bent portion 20 of the cleaning blade 10 is extended when the photoreceptor 1 is in a stopped state, and from this state, the process for the photoreceptor 1 is repeated as described above. That is, it is understood that when the bent portion 20 is in the extended state in the reference state, the movement of the cleaning blade 10 itself acts in the direction of coming off from the blade holding member 3.
本発明に係るクリーニング装置では上記の現象は発生せ
ず、収縮していたものが元にもどる動作を繰り返すこと
とな〕、弾性ゴム材料としての特性をブレード保持の構
成において十分いかしえものとなっている。In the cleaning device according to the present invention, the above-mentioned phenomenon does not occur, and the action of the contracted material returning to its original state is repeated], and the characteristics of the elastic rubber material can be fully utilized in the blade holding structure. ing.
通常、クリーニングブレード１ｏはポリウレタン等の材
料を用いて作られるが、長時間放置し九り、長期間の使
用後はいわゆる′へたり′が生じ、クリーニンググレー
ド１０の剛性が弱くなってこれがクリーニング性低下の
一因となる。ｔ＆一方ではクリーニンググレード作成上
、同一面上の２趨縁部を使用可能な精度に仕上げるとい
うことも行われる。Normally, the cleaning blade 1o is made of a material such as polyurethane, but if it is left for a long time, it will wear out after long-term use, and the rigidity of the cleaning grade 10 will become weaker, which will affect the cleaning performance. This contributes to the decline. On the other hand, when creating a cleaning grade, two edges on the same surface are finished to a usable precision.
従来、第１図に示す如く、クリーニングブレード１０を
直線状に保持し良状態で第１のクリー二ンクエッジｒｈ
Ｋかわ〕同一面上の第２のクリーニングエツジ１７を感
光体ＩＫ幽ＩＩさせ九場合、クリーニングブレードｌｏ
自体はすてに長期便用によるへたシが生じており、第２
図に示す如く自由状態ですでにり・リーニングブレード
１０が変形成している。この状態では轟初からへたシに
よるクリーニング性の低下が懸念される。Conventionally, as shown in FIG. 1, the cleaning blade 10 is held in a straight line and the first cleaning link edge
[Kawa] If the second cleaning edge 17 on the same surface is moved to the photoconductor IK II, then the cleaning blade lo
The body itself has already deteriorated due to long-term use, and the second
As shown in the figure, the leaning blade 10 is already deformed in its free state. In this state, there is a concern that the cleaning performance will deteriorate due to wear and tear from the beginning.
本発明に係るクリーニング装置によれば第２のクリーニ
ングエツジ２１をセットした状態では、自由状ＭＫ第６
図に示す如くクリーニンググレード１ｏが感光体１表面
に対して立つ方向に変形しているので第２のクリー二ン
グヱッジ２１を長期間使用した後の、第２のりｙＬ二ン
グエツジ２１０使用においてへたＪ）Ｋよる影響を受け
にくいという１ｌＩｔ＊ｔ４ｔ、ツ。According to the cleaning device according to the present invention, when the second cleaning edge 21 is set, the free MK 6th
As shown in the figure, since the cleaning grade 1o is deformed in a direction that stands up against the surface of the photoreceptor 1, after using the second cleaning wedge 21 for a long period of time, the second cleaning ) It is said that it is not easily affected by K.
本発明は以上詳述し良ようＫなシ、ブレード保持部材３
に屈曲部８を有するブレード装入部４を形成し、このブ
レード装入部４に弾性を有するクリーニングブレードＩ
Ｏを装入してこのクリー二／グブレード１００弾性変形
によるブレード装入１１４とのＩＩＩＩＫよ）クリーニ
ングブレードｌＯの保持がなされるために従来装置の欠
点であつ九クリーニングエツジの直線性不良、プｔ・−
ド保持部材Ｏ波打ち、クリーニンググレードの厚さのバ
ラフキ吸収不可が解消できるばか如かクリーニンググレ
ード１ｏの交換についてもブレード保持部材３ごとクリ
ーナーから取外しクリーニンググレードｌ−っをブレー
ド保持部材３から域外して交換すれば嵐く短時間に手を
汚さずに実施可能になる。The present invention has been described in detail above.
A blade insertion portion 4 having a bent portion 8 is formed in the blade insertion portion 4, and a cleaning blade I having elasticity is formed in the blade insertion portion 4.
The cleaning blade 100 is elastically deformed by charging the cleaning blade 114 and holding the cleaning blade 114, which is a drawback of the conventional device.・−
Is it possible to solve the problem of waving of the blade holding member O and the inability to absorb variations in the thickness of the cleaning grade?When replacing the cleaning grade 1, also remove the entire blade holding member 3 from the cleaner and remove the cleaning grade 1 from the blade holding member 3. If you replace it, you can do it in a short time and without getting your hands dirty.
第１図、第２図は従来の電子写真装置の説明図、＃ｇ３
図は本発明一実施例の構成説明図、第４Ｅはブレード保
持部材の他の実施態様の側面図、第５図は屈曲角度が感
光体の進行方向の後方側に作られ丸場合のクリーニング
装置の構成。
説明図、第６ｗＪは本発明に係るクリーニング装置にお
いて第２のクリーニングエツジを感光体に蟲接し九楊合
の説１ｊｌＩ図である。
３はブレード保持部材、４はグレード装入部、１０はク
リーニングブレード、２０は屈曲部分。
出鵬人 富士ゼロックス株式会社
代理人 弁理士 米 原 正 章
弁理士浜本 忠
第２図
第 ４ 凶−
／Figures 1 and 2 are explanatory diagrams of a conventional electrophotographic device, #g3
4E is a side view of another embodiment of the blade holding member; FIG. 5 is a cleaning device in which the bending angle is round and rearward in the direction of travel of the photoreceptor. composition. Explanatory drawing 6th wJ is a diagram 1jlI of the case where the second cleaning edge is brought into contact with the photoreceptor in the cleaning device according to the present invention. 3 is a blade holding member, 4 is a grade loading section, 10 is a cleaning blade, and 20 is a bent portion. Representative: Fuji Xerox Co., Ltd. Patent attorney: Masaaki Yonehara Patent attorney: Tadashi Hamamoto Figure 2 Figure 4 - /
Claims (1)
二ンｆブレード１ｏで清掃するクリーニング装置におい
て、ブレード保持部材３に屈曲部を有するブレード装入
部を設け、ブレード装入部にクリーニングブレード１ｏ
を装入してクリーニンググレード１ｏを屈自させて弾性
変形によるブレード装入部との摩１１によ〕クリーニン
ググレードＪｏをグレード保持部材３で保持し、クリー
ニンググレード１ｏの屈一部分２０の収縮側を像担持体
りの郡動方向の前方側に位置させたことを特徴とする電
子零真装置〇クリー°ニジグ装置。In a cleaning device that cleans substances remaining on the surface of an image carrier with an elastic cleaning blade 1o, the blade holding member 3 is provided with a blade insertion portion having a bent portion, and the cleaning blade is installed in the blade insertion portion. 1o
The cleaning grade Jo is held by the grade holding member 3, and the contracted side of the bending part 20 of the cleaning grade 1o is held by the grade holding member 3. An electronic zeroing device/cleaning jig device characterized in that it is located on the front side in the direction of group movement of an image carrier.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4286882A JPS58160974A (en) | 1982-03-19 | 1982-03-19 | Cleaning device of electrophotographic apparatus |
| GB08306555A GB2116911A (en) | 1982-03-19 | 1983-03-10 | Cleaning unit for an electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4286882A JPS58160974A (en) | 1982-03-19 | 1982-03-19 | Cleaning device of electrophotographic apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58160974A true JPS58160974A (en) | 1983-09-24 |
| JPH0310956B2 JPH0310956B2 (en) | 1991-02-14 |
Family
ID=12648010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4286882A Granted JPS58160974A (en) | 1982-03-19 | 1982-03-19 | Cleaning device of electrophotographic apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS58160974A (en) |
| GB (1) | GB2116911A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5854962A (en) * | 1997-09-23 | 1998-12-29 | Hewlett-Packard Company | Electrophotographic component cleaning apparatus |
| US10365588B2 (en) | 2015-10-30 | 2019-07-30 | Hp Indigo B.V. | Wiper holder for reproduction apparatus |
| EP3385855A1 (en) | 2017-04-07 | 2018-10-10 | Hewlett-Packard Development Company L.P. | Input/output modules |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083633A (en) * | 1976-06-28 | 1978-04-11 | Xerox Corporation | Blade cleaning holder |
-
1982
- 1982-03-19 JP JP4286882A patent/JPS58160974A/en active Granted
-
1983
- 1983-03-10 GB GB08306555A patent/GB2116911A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0310956B2 (en) | 1991-02-14 |
| GB8306555D0 (en) | 1983-04-13 |
| GB2116911A (en) | 1983-10-05 |
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