JPH04125677A - Cleaning device for copying machine - Google Patents
Cleaning device for copying machineInfo
- Publication number
- JPH04125677A JPH04125677A JP24833090A JP24833090A JPH04125677A JP H04125677 A JPH04125677 A JP H04125677A JP 24833090 A JP24833090 A JP 24833090A JP 24833090 A JP24833090 A JP 24833090A JP H04125677 A JPH04125677 A JP H04125677A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning blade
- plate
- elastic member
- cleaning
- charge carrier
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 57
- 239000002800 charge carrier Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 abstract description 7
- 230000003213 activating effect Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電子写真におけるトナークリーニング装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a toner cleaning device for electrophotography.
（従来の技術）
従来のクリーニング装置は、単に電荷保持体外周面に平
板状のクリーニングブレードを圧接させ、電荷保持体表
面に付着したトナー、紙粉等を除去していた。従来のク
リーニング装置では、電荷保持体の起動時にはクリーニ
ングブレードの変形量が一時的に最大となり、クリーニ
ングブレードのエツジが電荷保持体表面から離間し、腹
の部分が当たったり（腹当たり）、振動をもたらすこと
があり、クリーニング不良をもたらしていた。また、電
荷保持体とクリーニングブレードの間に蓄積したトナー
、紙粉が一時的に摺り抜けてしまうことがあり、結果と
してクリーニング不良が発生することがあった。また、
ブレードを長期使用した場合において、クリー二シグフ
レード材料の弾性が低下することがあり、このような場
合、前述の腹当たりが生じ易く、短寿命となっていた。(Prior Art) A conventional cleaning device simply brings a flat cleaning blade into pressure contact with the outer peripheral surface of a charge carrier to remove toner, paper powder, etc. attached to the surface of the charge carrier. In conventional cleaning devices, when the charge carrier is activated, the amount of deformation of the cleaning blade temporarily reaches its maximum, and the edge of the cleaning blade separates from the surface of the charge carrier, causing the tip of the blade to hit (belt contact) and vibrations. This may lead to poor cleaning. In addition, toner and paper dust accumulated between the charge carrier and the cleaning blade may temporarily slip through, resulting in poor cleaning. Also,
When a blade is used for a long period of time, the elasticity of the Creenisigfled material may decrease, and in such a case, the above-mentioned abutment is likely to occur, resulting in a short life.
また、電荷保持体の振動によるゴム等のブレード材料の
傷発生、電荷保持体振動による光学像形成への悪影響が
あった。Further, the vibration of the charge carrier causes scratches on the blade material such as rubber, and the vibration of the charge carrier has an adverse effect on optical image formation.
（発明が解決しようとする課題）
本発明は、上記のような事情に鑑みてなされたものてあ
って、目的は電荷保持体の起動時においても定常運転時
と同等のクリーニング性を得ることであり、さらには長
期間プレートを使用して、ブレードの弾性か低下しても
、なおかつ長期間フレードを使用できるようにすること
にある。(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and the purpose is to obtain cleaning performance equivalent to that during steady operation even when the charge holding body is started. Moreover, even if the elasticity of the blade decreases due to long-term use of the plate, the blade can still be used for a long period of time.
さらに他の目的は、電荷保持体の振動に基づく光学像の
ブレを防ぎ、鮮明な画像を得ることである。Still another purpose is to prevent blurring of the optical image due to vibration of the charge carrier and to obtain a clear image.
（課題を解決するための手段）
本発明は、電荷保持体と該電荷保持体の表面に先端エツ
ジ部か押し当てられたクリーニングブレードと該クリー
ニングフレードの電荷保持体の移動方向の下僚側に配置
された板状弾性部材とから成り、該電荷保持体の移動に
伴い該クリーニングブレードが変形せられ、かつその変
形量か該板状弾性部材により抑制されるよう該クリーニ
ングブレードと板状弾性部材とを配置させたことを特徴
とするトナーフレードクリーニング装置であって、電荷
保持体にはセレン、アモロファスシリコン、有機電荷保
持体、さらにはイオノクラフィーと称する配録方法にお
いて使用される誘電体を使用したものをも含むものであ
る。(Means for Solving the Problems) The present invention provides a charge carrier, a cleaning blade whose tip edge portion is pressed against the surface of the charge carrier, and a subordinate side of the cleaning blade in the direction of movement of the charge carrier. and a plate-shaped elastic member disposed in the cleaning blade and a plate-shaped elastic member so that the cleaning blade is deformed as the charge carrier moves, and the amount of deformation is suppressed by the plate-shaped elastic member. A toner fried cleaning device characterized in that a member is arranged, and the charge carrier includes selenium, amorphous silicon, an organic charge carrier, and a charge carrier used in a placement method called ionocraphy. This also includes those using dielectric materials.
クリーニングブレードとは、ウレタンゴム等の弾性材料
等の適度な弾性を有する板状材料である。The cleaning blade is a plate-shaped material having appropriate elasticity, such as an elastic material such as urethane rubber.
クリーニングフレードに対向する板状弾性部材は、ゴム
及び金属材料等の弾性を有する材料であって、前記クリ
ーニング部材の過度な変形を生じた時、例えば電荷保持
体が動き始めた時、またはクリーニングブレードの弾性
か低下した時に、クリーニングブレードかこの板状弾性
部材によって、その動きが抑制されるよう配Ｉされてい
る。The plate-shaped elastic member facing the cleaning blade is made of an elastic material such as rubber or metal, and is used when the cleaning member is excessively deformed, for example, when the charge holder starts to move, or when the cleaning blade is moved. When the elasticity of the blade decreases, the movement of the cleaning blade is suppressed by the plate-like elastic member.
よって、初期状態で軽く接触した状態で設定されていて
も、わずかに空間を置いて配置され、駆動開始時でのク
リーニング部材の動きに基づいて板状弾性部材か接触す
るように配置してあっても良い。Therefore, even if they are set in a light contact state in the initial state, they are placed with a slight space between them, and the plate-shaped elastic member is placed in contact with them based on the movement of the cleaning member at the start of driving. It's okay.
第１図は、本発明の構成の例を示している。この図にお
いては電荷保持体は静止した状態を示していて、クリー
ニングブレード２は弾性部材５から離間して近接配置さ
れているか、又は軽く接触しているクリーニングブレー
ド２は、ブレード支持体３に固定化されていて、適当な
圧力でエツジ部が電荷保持体に押圧するようクリーニン
グ装置の自重、またはスプリング４により付勢されてし
−る。FIG. 1 shows an example of the configuration of the present invention. In this figure, the charge carrier is shown in a stationary state, and the cleaning blade 2 is spaced apart from and close to the elastic member 5, or the cleaning blade 2 in slight contact with the elastic member 5 is fixed to the blade support 3. The edge portion is biased by the weight of the cleaning device or by the spring 4 so that the edge portion is pressed against the charge carrier with an appropriate pressure.
電荷保持体か静止した状態から駆動が開始されると、ク
リーニングブレード２は動摩擦により、−時的に大きく
変形する。この時の状態は、第２図に示されている。When driving is started from a state where the charge carrier is stationary, the cleaning blade 2 is significantly deformed over time due to dynamic friction. The state at this time is shown in FIG.
つまり、クリーニングフレード２の変形により、これが
このクリーニングブレードに対向した板状弾性部材５と
接触し、たわみが抑制される。That is, the deformation of the cleaning blade 2 causes it to come into contact with the plate-shaped elastic member 5 facing the cleaning blade, thereby suppressing the deflection.
該板状弾性部材５は、クリーニングブレード２と電荷保
持体が静止しているときから接触させられていても良い
が、この場合でも、クリーニングブレード２と板状弾性
部材５とは各々か自由に動くよう接着されていないこと
か望ましい。The plate-like elastic member 5 may be brought into contact with the cleaning blade 2 and the charge holder even when they are stationary, but even in this case, the cleaning blade 2 and the plate-like elastic member 5 can be moved freely. It is preferable that it is not glued so that it can move.
本発明の効果をもたらすには、クリーニング弾性部材の
厚み、弾性係数、長さ等により、このクリーニング部材
とそれに対向した弾性部材との間の空間距離、及び板状
弾性部材の材料、厚み、及び長さが決定される。テスト
結果に基づいた適用範囲としては、第３図に示される。In order to bring about the effects of the present invention, the thickness, elastic modulus, length, etc. of the cleaning elastic member, the spatial distance between this cleaning member and the elastic member facing it, and the material, thickness, and length is determined. The applicable range based on the test results is shown in FIG.
板状弾性部材５の材料はＳＵＳで、クリーニングブレー
ドの材料はポリウレタンが使用されるが、他の同様な弾
性部材であっても良い。The material of the plate-shaped elastic member 5 is SUS, and the material of the cleaning blade is polyurethane, but other similar elastic members may be used.
（実施例）
本実施例においては、クリーニングブレードはポリウレ
タンで、板状弾性部材はＳＵＳを使用し、弾性板材曲げ
加工上の寸法バラツキをも考慮して、板状弾性部材とク
リーニングブレードとのキャップがない場合においても
クリーニング性能に支障を来たぬよう弾性板厚、寸法を
実験的に求め板状弾性体厚みｅが０．０８〜０．２５ｍ
ｍ、クリーニングフレードが支持部材から突出している
長さａが９．５ｍｍ、クリーニングブレードと板状弾性
部材とが対面していない長さｂが２〜４ｍｍの範囲でテ
ストを行った。(Example) In this example, the cleaning blade is made of polyurethane, the plate-like elastic member is made of SUS, and the cap between the plate-like elastic member and the cleaning blade is The thickness and dimensions of the elastic plate were determined experimentally so that the cleaning performance would not be affected even if there was no elastic plate, and the thickness e of the plate-shaped elastic body was 0.08 to 0.25 m.
The test was conducted in the range of 9.5 mm, the length a in which the cleaning blade protrudes from the support member, and the length b, in which the cleaning blade and the plate-like elastic member do not face each other, in the range of 2 to 4 mm.
この構成で行った約１００にコピーのクリーニング性能
維持性確認実験の代表的結果を第４図に示す。実験はＧ
ＡＰ ＝ ０及び０．５ｍｍの２条件で実施し、いずれ
においても従来のタイプのクリーニング装置の場合より
も大幅なりリーニング性の性能向上をはかることかでき
た。FIG. 4 shows the typical results of an experiment to confirm the maintenance of cleaning performance for approximately 100 copies using this configuration. Experiment is G
The test was carried out under two conditions: AP = 0 and 0.5 mm, and in both cases it was possible to significantly improve the leaning performance compared to the case of a conventional type of cleaning device.
尚、この図においての性能レベルは、下記の基準に基づ
くものである。Note that the performance levels in this figure are based on the following criteria.
Ｇ−１・・・ブレード通過後の電荷保持体表面残存トナ
ー無し
Ｇ−２・・・電荷保持体表面上にフィルム状残存トナー
有り、但しプリントアウトせず
Ｇ−３・・・筋状（幅１〜２ｍｍ）にプリントアウト＝
１カ所
Ｇ−４・・・Ｇ−３レベルの筋状フイルミ〉グが２ケ所
以上
Ｇ−５・・・帯状（幅２〜５ｃｍ）フィルミングがプリ
ントアウト
（発明の効果）
上記構成であるクリー二〉グ装置により、電荷保持体起
動時におけるクリーニングブレードの大きな変形が抑制
され、クリ一二シグフレートの振動や腹当たりか防止で
き、フレートからのトナ等の通過が抑制された。合わせ
てフレードの損傷の１氏下、さらには電荷保持体上への
像形成についても振動による像悪化か抑制でき、複写機
及びブリジターの信頼性が向上した。G-1...No toner remaining on the surface of the charge carrier after passing through the blade G-2...Film-like residual toner on the surface of the charge carrier, but not printed out G-3...Stripes (width) Print out on 1~2mm) =
1 location G-4... G-3 level striped film > 2 or more locations G-5... Band-shaped (width 2 to 5 cm) filming is printed out (effect of the invention) The cleaning blade was prevented from being greatly deformed when the charge holding body was started, and the cleaning blade was prevented from vibrating or hitting the flat surface, and toner particles and the like were prevented from passing through the plate. In addition, it was possible to suppress damage to the fredes by 1 degree, and furthermore, image deterioration due to vibrations in image formation on the charge carrier was suppressed, and the reliability of the copying machine and bridger was improved.
第１図〜第２図は本発明のクリー二〉り装置概略図、第
３図は本発明品りリーニンクフレード単体の構成図の例
、第４図は本発明の効果を示す実験例である。
１・・・電荷保持体、２・・・クリｍ：〉クツレード、
３・・・フレード支持体、４・・・スブリシグ、５・・
・板状弾性部材。
特許出願人 富士ゼロックス株式会社代 理 人
小１）富士雄
早出 明
第１図
第２図
、９．５
１ α ：
第３図
Ｏ°゛°弾性板４がないとき
ム・・・弾性板があり空隙がないとき
Ｉ゛°°弾性板があり空隙が０．５ｍｍとき第４図Figures 1 and 2 are schematic diagrams of the cleaning device of the present invention, Figure 3 is an example of the configuration of a single product of the present invention, and Figure 4 is an experimental example showing the effects of the present invention. be. 1... Charge holding body, 2... Krim:〉Cutsurade,
3...Flade support body, 4...sublisig, 5...
・Plate-shaped elastic member. Patent applicant: Fuji Xerox Co., Ltd. Agent
1st grade) Fujio Hayade Akira Figure 1 Figure 2, 9.5 1 α: Figure 3 O°゛°When there is no elastic plate 4...When there is an elastic plate and there is no void I゛°°Elastic plate Figure 4 when the gap is 0.5mm
Claims (1)
が押し当てられたクリーニングブレードと該クリーニン
グブレードの電荷保持体の移動方向の下流側に配置され
た板状弾性部材とから成り、該電荷保持体の移動に伴い
該クリーニングブレードが変形せられ、かつその変形量
が該板状弾性部材により制御されるよう該クリーニング
ブレードと該板状弾性部材とを配置させたことを特徴と
するトナークリーニング装置。(1) Consisting of a charge carrier, a cleaning blade whose tip end portion is pressed against the surface of the charge carrier, and a plate-shaped elastic member disposed on the downstream side of the cleaning blade in the direction of movement of the charge carrier, The cleaning blade and the plate-like elastic member are arranged so that the cleaning blade is deformed as the charge holding body moves, and the amount of deformation is controlled by the plate-like elastic member. Toner cleaning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24833090A JPH04125677A (en) | 1990-09-18 | 1990-09-18 | Cleaning device for copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24833090A JPH04125677A (en) | 1990-09-18 | 1990-09-18 | Cleaning device for copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04125677A true JPH04125677A (en) | 1992-04-27 |
Family
ID=17176481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24833090A Pending JPH04125677A (en) | 1990-09-18 | 1990-09-18 | Cleaning device for copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04125677A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213179A (en) * | 1992-12-21 | 1994-08-02 | Carrier Corp | Scroll compressor with bypass valve for protecting overheat |
| JP2010122255A (en) * | 2008-11-17 | 2010-06-03 | Ricoh Co Ltd | Cleaning device, process cartridge and image forming apparatus |
| JP2015108742A (en) * | 2013-12-05 | 2015-06-11 | キヤノンファインテック株式会社 | Developing device and image forming apparatus |
| JP2015108741A (en) * | 2013-12-05 | 2015-06-11 | キヤノンファインテック株式会社 | Developing device and image forming apparatus |
| US9581932B2 (en) | 2013-12-05 | 2017-02-28 | Canon Finetech Inc. | Developing apparatus and image forming apparatus |
-
1990
- 1990-09-18 JP JP24833090A patent/JPH04125677A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213179A (en) * | 1992-12-21 | 1994-08-02 | Carrier Corp | Scroll compressor with bypass valve for protecting overheat |
| JP2010122255A (en) * | 2008-11-17 | 2010-06-03 | Ricoh Co Ltd | Cleaning device, process cartridge and image forming apparatus |
| JP2015108742A (en) * | 2013-12-05 | 2015-06-11 | キヤノンファインテック株式会社 | Developing device and image forming apparatus |
| JP2015108741A (en) * | 2013-12-05 | 2015-06-11 | キヤノンファインテック株式会社 | Developing device and image forming apparatus |
| US9581932B2 (en) | 2013-12-05 | 2017-02-28 | Canon Finetech Inc. | Developing apparatus and image forming apparatus |
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