JPS59214069A - Cleaning device of electrophotographic copying machine - Google Patents
Cleaning device of electrophotographic copying machineInfo
- Publication number
- JPS59214069A JPS59214069A JP8829083A JP8829083A JPS59214069A JP S59214069 A JPS59214069 A JP S59214069A JP 8829083 A JP8829083 A JP 8829083A JP 8829083 A JP8829083 A JP 8829083A JP S59214069 A JPS59214069 A JP S59214069A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning blade
- resin layer
- cleaning
- toner
- photoreceptor
- 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
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
- G03G21/0017—Details relating to the internal structure or chemical composition of the blades
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は転写式電子写真複写機におけるクリーニング装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning device for a transfer type electrophotographic copying machine.
電子写真複写機において、感光体表面の清掃という問題
は技術的に重要な課題である。従来行なわれている清掃
方法として第１図に示す様にクリーニング装置２の支持
具４に支えられたウレタンゴムあるいはネオプレンゴム
等の弾性ゴム製のクリーニングブレード３を感光体ｌの
表面に当接し、感光体ｌ上の残留トナーを除去清掃する
いわゆるブレードクリーニング方式と呼ばれるものがあ
る。In electrophotographic copying machines, the problem of cleaning the surface of a photoreceptor is a technically important issue. As shown in FIG. 1, a conventional cleaning method involves bringing a cleaning blade 3 made of elastic rubber such as urethane rubber or neoprene rubber supported by a support 4 of a cleaning device 2 into contact with the surface of the photoreceptor l. There is a so-called blade cleaning method that removes and cleans the residual toner on the photoreceptor l.
しかしながらこの方式に使用されるクリーニングブレー
ド３は離型性が悪いため感光体１の表面よりクリーニン
グされたトナーがクリーニングブレード３に付着堆積す
るため、クリーニングブレード３の感光体１側に堆積し
たトナーが感光体ｌに再付着することもあり、クリーニ
ング不良として複写画像を汚す欠点があった。However, since the cleaning blade 3 used in this method has poor mold release properties, the toner cleaned from the surface of the photoconductor 1 adheres to and accumulates on the cleaning blade 3. This has the disadvantage that it may re-adhere to the photoreceptor 1, resulting in poor cleaning and staining the copied image.
また、第２図に示す様にクリーニングブレード３に付着
堆積したトナー６がクリーニングブし・−ド３のエツジ
部５をのりこえて裏廻りをして裏廻りトナー７としてブ
レード側面に堆積した。Further, as shown in FIG. 2, the toner 6 deposited on the cleaning blade 3 went over the edge portion 5 of the cleaning blade 3, went around the backside, and was deposited on the side surface of the blade as backside toner 7.
この裏廻りトナー７が感光体１の移動開始の際に、振動
ではがれて感光体ｌへ付着し複写画像を汚すという問題
をおこしていた。When the photoreceptor 1 starts moving, this backside toner 7 comes off due to vibration and adheres to the photoreceptor 1, causing a problem of staining the copied image.
また従来例ではクリーニング不良の発生により 電子写
真工程の最初に感光体１０表面への一様な帯電を行なう
帯電装置が感光体りに残留したトナーで汚れしばしば帯
電装置を清掃しなければならず、また帯電装置の寿命が
短かくなる欠へかあった。Furthermore, in the conventional example, due to poor cleaning, the charging device that uniformly charges the surface of the photoreceptor 10 at the beginning of the electrophotographic process becomes contaminated with toner remaining on the photoreceptor, and the charging device often has to be cleaned. Moreover, the life of the charging device was sometimes shortened.
さらにクリーニングブレード３に堆積したトナー６がク
リーニングブレード３と感光体ｌとの摩擦により生ずる
熱により溶融し、感光体１へ融着してしまい、感光体１
の寿命を短かくするという欠点もあった。またこのトナ
ーの融着はクリーニングブレード３に対してもおこり、
クリーニングブレード３のクリーニング性能を低下させ
クリーニングブレード３の寿命を短かくする原因となっ
ており、またクリーニング装置に付着したトナーがクリ
ーニング装置を取り外す際トナーが洩れて複写機内部を
汚すこともあった。Further, the toner 6 deposited on the cleaning blade 3 is melted by the heat generated by the friction between the cleaning blade 3 and the photoreceptor 1, and is fused to the photoreceptor 1.
It also had the disadvantage of shortening its lifespan. This toner fusion also occurs on the cleaning blade 3,
This causes the cleaning performance of the cleaning blade 3 to deteriorate and the life of the cleaning blade 3 to be shortened, and the toner adhering to the cleaning device sometimes leaks when the cleaning device is removed, contaminating the inside of the copying machine. .
本発明は電子写真複写機のクリーニング装置において、
クリーニングの性能を良くし、複写画像の汚れ、帯電器
の汚れをなくし、感光体の寿命を伸ばすクリーニング装
置を提供することを目的とする。The present invention provides a cleaning device for an electrophotographic copying machine.
It is an object of the present invention to provide a cleaning device that improves cleaning performance, eliminates stains on copied images and stains on a charger, and extends the life of a photoreceptor.
本発明は電子写真複写機のクリーニング装面において、
弾性ゴムに離型性樹脂の被覆層を備えたクリーニングブ
レードを設けてなるものである。The present invention provides a cleaning device for an electrophotographic copying machine.
This cleaning blade is made of elastic rubber and has a coating layer of releasable resin.
第３図は本発明の実施例を示す。固設ごれた支持具４に
植え込まれ、弾性ゴム３の外側面と先端面とに離型性の
良いＰＦＡ 、ＰＴＥＥ 、ＲＴＶ、シリコン等の厚さ
１０μの樹脂層８ａ。FIG. 3 shows an embodiment of the invention. A resin layer 8a having a thickness of 10μ and made of PFA, PTEE, RTV, silicone, etc. with good mold releasability is placed on the outer surface and the tip surface of the elastic rubber 3, which is implanted in the fixed support 4.
８ｂを備えたクリーニングブレード３′が感光体ｌの表
面に樹脂層を備えない裏面８Ｃで圧接させている。感光
体ｌ上の残留トナー９はクリーニングブレード３′の樹
脂層８ｂにより削られ、樹脂層８ｂ玉には離型性がよい
ため堆積せずに削り落され、エツジ部５′にもトナーの
堆積が防１］二される。A cleaning blade 3' having a cleaning blade 8b is brought into pressure contact with the front surface of the photoreceptor 1 at a back surface 8C which is not provided with a resin layer. The residual toner 9 on the photoconductor l is scraped off by the resin layer 8b of the cleaning blade 3', and the beads of the resin layer 8b have good releasability, so they are scraped off without being deposited, and the toner is also deposited on the edge portion 5'. Defense 1]2.
第４図は本発明の他の実施例を示す。第３図に示す実施
例と異るところはクリーニングブレード３′の裏面８Ｃ
の感光体１と圧接していない部分８ｄにも樹脂層を被覆
している。感光体ｌと接しないクリーニングブレード３
′の全面が樹脂層で被覆されているため、クリーニング
ブレード３′への残留トナー９やそれ等を削り落す際浮
遊するトナーの付着は非常に少なぐなる。FIG. 4 shows another embodiment of the invention. The difference from the embodiment shown in FIG. 3 is the back surface 8C of the cleaning blade 3'.
The portion 8d which is not in pressure contact with the photoreceptor 1 is also coated with a resin layer. Cleaning blade 3 that does not come into contact with the photoreceptor l
Since the entire surface of cleaning blade 3' is coated with a resin layer, the adhesion of residual toner 9 and floating toner to cleaning blade 3' when scraping it off is extremely reduced.
第５図は本発明の更に他の実施例を示す。離型性のよい
樹脂層８で弾性ゴムのクリーニングブレード３の全面が
被覆されている。感光体Ｉと圧接するクリーニングブレ
ード３′の面には１ａ、型性のよい樹脂層８があり、摩
擦係数が少ないためクリーニングブレード３′の押当圧
を強めることが出来、かつクリーニングブレード３′・
＼のトナー付着が極減される。FIG. 5 shows yet another embodiment of the invention. The entire surface of the cleaning blade 3 made of elastic rubber is covered with a resin layer 8 having good mold releasability. On the surface of the cleaning blade 3' that comes into pressure contact with the photoreceptor I, there is a resin layer 8 with good moldability 1a, which has a low coefficient of friction, so that the pressing pressure of the cleaning blade 3' can be strengthened.・
＼ toner adhesion is greatly reduced.
前記実施例においてブレード表面層を離型性の良い樹脂
層とする代りに、ブレード表面の粗らさをトナーの粒径
より小さくすることで、裏廻りトナーを少なくする効果
を上げることが可能である。In the above embodiment, instead of using a resin layer with good release properties as the blade surface layer, by making the roughness of the blade surface smaller than the particle size of the toner, it is possible to increase the effect of reducing back-flowing toner. be.
例えば、トナーの粒径が１５〜１６ｇｍ程度である場合
、クリーニングブレード３の表面の凹凸を１μｍ−１０
ｇｍ程度とする。For example, when the particle size of the toner is about 15 to 16 gm, the unevenness on the surface of the cleaning blade 3 is 1 μm-10 gm.
approximately gm.
従って上記実施例のすべてに対して感光体１と圧接する
部分のクリーニングブレード３′の粗さをＩＷ−１ＯＩ
Ｌ程度にすることにより更によい結果を得る。Therefore, for all of the above embodiments, the roughness of the cleaning blade 3' in the portion that comes into pressure contact with the photoreceptor 1 is set to IW-1OI.
Even better results can be obtained by setting the value to about L.
本発明のクリーニングブレードの表面被覆に用いられる
離型性樹脂はＰＦＡ 、ＰＴＥＥ 、ＲＴＶ、シリコン
に限られるものでなく、他の離型性の良い樹脂を使用で
きることは言うまでもない。It goes without saying that the mold release resin used to coat the surface of the cleaning blade of the present invention is not limited to PFA, PTEE, RTV, and silicone, and other resins with good mold release properties can be used.
以上説明したように、電子写真複写機のクリーニング装
置において、弾性ゴムよりなるクリーニングブレードの
表面に離型性の良い樹脂層を設けたことにより、残留ト
ナーのクリーニングブレードへの堆積がなくなったため
、クリーニング性能の向上、クリーニングブレード、感
光体の長寿命化という効果が得られ、連続して複写画像
を作成する場合クリーニングを安定して行うことが可能
となった。As explained above, in the cleaning device of an electrophotographic copying machine, by providing a resin layer with good mold releasability on the surface of the cleaning blade made of elastic rubber, the accumulation of residual toner on the cleaning blade is eliminated. The effects of improved performance and longer life of the cleaning blade and photoreceptor have been achieved, and it has become possible to perform cleaning stably when continuously creating copied images.
また複写画像作成時の帯電装置の残留トナーによる汚れ
をなぐすることが可能となり、クリーニングブレードへ
のトナー付着が極減したため、クリーニング装置を取り
外す際トナーが洩れて複写機内部を汚すという問題も解
決された。In addition, it is now possible to remove stains caused by residual toner on the charging device when copying images are created, and the amount of toner adhering to the cleaning blade has been minimized, solving the problem of toner leaking and staining the inside of the copying machine when the cleaning device is removed. It was done.
第１図は従来のクリーニング装置の縦断面図、第２図は
第１図の弾性ゴムブレードが感光体に圧接されている様
子を示す縦断面図、第３図は本発明の実施例を示す縦断
面図、第４図は他の実施例を示す縦断面図、第５図は更
に他の実施例の縦断面図である。
１・・・感光体 ２・・・クリーニング装置 ３・・・
クリーニングブレード ３′・・・クリーニングブレー
ド ４・・・支持具 ５，５′・・・エツジ部 ６・・
・堆積したトナー ７・・・裏廻すトナー ８・・・極
脂層 ９・・・残留トナー。
特許出願人 キャノン株式会社
代理人 新 井 −部
−５７：。
［FIG. 1 is a longitudinal sectional view of a conventional cleaning device, FIG. 2 is a longitudinal sectional view showing how the elastic rubber blade of FIG. 1 is pressed against a photoreceptor, and FIG. 3 shows an embodiment of the present invention FIG. 4 is a longitudinal sectional view showing another embodiment, and FIG. 5 is a longitudinal sectional view of still another embodiment. 1... Photoreceptor 2... Cleaning device 3...
Cleaning blade 3'...Cleaning blade 4...Support 5,5'...Edge portion 6...
- Accumulated toner 7...Toner to be reversed 8...Extremely fat layer 9...Residual toner. Patent Applicant Canon Co., Ltd. Agent Arai-bu-57:. [
Claims (1)
レードを用いて感光体表面上の残留トナーを清掃除去す
るクリーニング装置において、弾性ブレードの表面に離
型性の良い樹脂層を設けたことを特徴とするクリーニン
グ装置。1. In a cleaning device that uses an elastic blade in contact with the movable photoreceptor of an electrophotographic copying machine to clean and remove residual toner on the surface of the photoreceptor, a resin layer with good mold releasability is provided on the surface of the elastic blade. A cleaning device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8829083A JPS59214069A (en) | 1983-05-19 | 1983-05-19 | Cleaning device of electrophotographic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8829083A JPS59214069A (en) | 1983-05-19 | 1983-05-19 | Cleaning device of electrophotographic copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59214069A true JPS59214069A (en) | 1984-12-03 |
Family
ID=13938774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8829083A Pending JPS59214069A (en) | 1983-05-19 | 1983-05-19 | Cleaning device of electrophotographic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59214069A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61269182A (en) * | 1985-05-23 | 1986-11-28 | Sharp Corp | Cleaning device for blade |
| US20110135361A1 (en) * | 2009-12-04 | 2011-06-09 | Toshiyuki Kabata | Cleaning blade, and image forming apparatus and process cartridge using the same |
| WO2011071180A1 (en) * | 2009-12-11 | 2011-06-16 | Canon Kabushiki Kaisha | Cleaning member |
| JP2011138110A (en) * | 2009-12-04 | 2011-07-14 | Ricoh Co Ltd | Image forming apparatus |
-
1983
- 1983-05-19 JP JP8829083A patent/JPS59214069A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61269182A (en) * | 1985-05-23 | 1986-11-28 | Sharp Corp | Cleaning device for blade |
| US20110135361A1 (en) * | 2009-12-04 | 2011-06-09 | Toshiyuki Kabata | Cleaning blade, and image forming apparatus and process cartridge using the same |
| JP2011138110A (en) * | 2009-12-04 | 2011-07-14 | Ricoh Co Ltd | Image forming apparatus |
| US8498565B2 (en) * | 2009-12-04 | 2013-07-30 | Ricoh Company, Ltd. | Cleaning blade, and image forming apparatus and process cartridge using the same |
| WO2011071180A1 (en) * | 2009-12-11 | 2011-06-16 | Canon Kabushiki Kaisha | Cleaning member |
| US8737900B2 (en) | 2009-12-11 | 2014-05-27 | Canon Kabushiki Kaisha | Cleaning member |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4294175B2 (en) | Image forming apparatus | |
| JPS59214069A (en) | Cleaning device of electrophotographic copying machine | |
| US5091753A (en) | Cleaning apparatus having a surface-conforming blade | |
| JPH07302012A (en) | Fixing device | |
| JPS62258472A (en) | Developer for electrostatic copying machine | |
| JP2005115197A (en) | Image forming apparatus | |
| JP3317748B2 (en) | Roller charging device and image forming apparatus using the same | |
| JPH0226225B2 (en) | ||
| JP2759578B2 (en) | Fixing device | |
| JPH0795216B2 (en) | Image forming device cleaning device | |
| JPH09325603A (en) | Image forming device | |
| JP2009003482A (en) | Cleaning member, charging device, and image forming apparatus | |
| JPH03200191A (en) | Image forming device | |
| JP2005196191A (en) | Development method for wet type electrophotographic image forming apparatus | |
| JPS59147373A (en) | Lubricant supplier for copying machine | |
| JPS58215675A (en) | Heat roll fixation device | |
| JP4040197B2 (en) | Method for producing elastic roller | |
| JP3291354B2 (en) | Cleaning device in image forming apparatus | |
| JPS6191680A (en) | Cleaning device | |
| JPH0529490Y2 (en) | ||
| JPS6358481A (en) | Cleaning blade | |
| JPS6191682A (en) | Cleaning device | |
| JPS62182785A (en) | Image forming device | |
| JP2002351275A (en) | Cleaning blade | |
| JPS6167073A (en) | Cleaning device |