JPS61121076A - Cleaning device - Google Patents
Cleaning deviceInfo
- Publication number
- JPS61121076A JPS61121076A JP59242043A JP24204384A JPS61121076A JP S61121076 A JPS61121076 A JP S61121076A JP 59242043 A JP59242043 A JP 59242043A JP 24204384 A JP24204384 A JP 24204384A JP S61121076 A JPS61121076 A JP S61121076A
- Authority
- JP
- Japan
- Prior art keywords
- image carrier
- rubbing
- belt
- cleaning device
- roller
- 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 15
- 230000000694 effects Effects 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 108091008695 photoreceptors Proteins 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- G03G21/0041—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 band; Details of cleaning bands, e.g. band winding
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用範囲〕
本発明は電子写真複写機、同プリンターなど静電写真プ
ロセスを利用する画像形成装置のクリーニング装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Scope of Industrial Application] The present invention relates to a cleaning device for an image forming apparatus that utilizes an electrostatic photographic process, such as an electrophotographic copying machine or a printer thereof.
このような、静電写真プロセスを利用した画像形成装置
は、像担持体の帯電、トナー像の転写部材への転写等の
目的で、複数個のコロナ帯電器で像担持体表面を帯電す
ることが一般である。そのため、コロナ放電によって空
気中の分子が変化し、窒素酸化物等の物質を生成する場
合がある。これらのコロナ生成物は像担持体表面に付着
して高湿環境下において、像担持体表面の抵抗が下が〕
、像担持体表面に形成される静電＃像をボケさせてしま
う等の悪影響をおよぼすことがある。従来、上記の悪影
響を除去するため像担持体を加熱し、乾燥させる方法や
、シリコンゴムなどのロー２−を像担持体表ｍＫ圧接し
て回転させることによシ、像担持体表面を摺擦、コロナ
生成物を取）除く方法などが提案されている。特に後者
の方法は、像担持体の長期間の使用にも安定し九効果が
あ）、また、像担持体表ｒｊｊｉＫ１紙などの転写部材
中の物質が付着したシ、トナーが融着した場合の除去に
も効果があ）、優れ九方法である。第１図に、この方法
の１実施例の構成を示す。図中１０１は、円筒状の感光
体であ）、同一矢印入方向に回転する。この感光体１０
１はコロナ放電器１０２により均−帯電された後、像露
光１０５が照射されて原稿に対応し友静′ｗｔｍ像が形
成され、現像手段１０４によって顕画化される。顕画化
されたトナー１は、転写部材送〕１０５から供給される
転写部材１０９へ、必要に応じて裏面から転写コロナ放
電器１０６によシトナーと逆極性の電荷を与えられて、
転写される。その後、転写部材１０９は分離・搬送され
て、必要に応じて定着される。その後感光体１０１はク
リーニング装置１０７中の摺擦ローラ１０７−Ｉ Ｋよ
シ摺擦され、表面の画像ボケとなる物質をＩＩＬｎ除か
れた後、クリーニングブレード１０７−２Ｖｃよシ残留
トナーを除去され、前露光１０８によシ、残留電荷を除
去され、次のサイクルに移る。このとき摺擦ローラ１０
７−１の回転方向、速度は、感光体１０１の回転方向、
速度に対していずれでもよい。図中１０７−５は摺擦ロ
ーラＩＱ７−１の表面に付着したトナー等を除去するた
めのスクレーパー、１０７−４紘スクリユーである。Such an image forming apparatus using an electrostatic photographic process charges the surface of the image carrier with a plurality of corona chargers for the purpose of charging the image carrier, transferring a toner image to a transfer member, etc. is common. Therefore, molecules in the air change due to corona discharge, and substances such as nitrogen oxides may be generated. These corona products adhere to the surface of the image carrier and reduce the resistance of the surface of the image carrier in a high humidity environment.
This may have an adverse effect, such as blurring the electrostatic image formed on the surface of the image carrier. Conventionally, in order to remove the above-mentioned adverse effects, the surface of the image carrier is rubbed by heating and drying the image carrier, or by pressing a roller made of silicone rubber onto the surface of the image carrier and rotating it. Methods such as rubbing and removing corona products have been proposed. In particular, the latter method is stable and effective even when the image carrier is used for a long period of time (9), and is also effective when the surface of the image carrier is coated with substances in a transfer member such as RJJIK1 paper or when toner is fused. It is also effective in removing FIG. 1 shows the configuration of one embodiment of this method. In the figure, reference numeral 101 denotes a cylindrical photoreceptor), which rotates in the direction indicated by the same arrow. This photoreceptor 10
After 1 is uniformly charged by a corona discharger 102, it is irradiated with image exposure 105 to form a static image corresponding to the original document, which is visualized by a developing means 104. The developed toner 1 is supplied from a transfer member feeder 105 to a transfer member 109, where it is given an electric charge of opposite polarity to the toner by a transfer corona discharger 106 from the back side as necessary.
transcribed. Thereafter, the transfer member 109 is separated, transported, and fixed as necessary. Thereafter, the photoreceptor 101 is rubbed by a rubbing roller 107-IK in a cleaning device 107 to remove substances that cause image blur on the surface, and then residual toner is removed by a cleaning blade 107-2Vc. Pre-exposure 108 removes residual charges and moves on to the next cycle. At this time, the rubbing roller 10
The rotation direction and speed of 7-1 are the rotation direction of the photoreceptor 101,
Any speed is fine. In the figure, 107-5 is a scraper 107-4 for removing toner etc. adhering to the surface of the rubbing roller IQ7-1.
しかしながら上記のようなりリーニング装置に訃いて、
従来、１つの問題点があった。However, as mentioned above, if the leaning device fails,
Conventionally, there was one problem.
ＷＩ擦部材は、摺擦効果などから、金属の軸にウレタン
ゴム、シリコンゴムなどの弾性体を同心円状に配置した
ものが通常である。一方、摺擦効果をあげるためＫは、
摺擦部材と像担持体との接触面積を大きくすることが必
要である、ところが、摺擦部材の直径にも限界があプ、
摺擦部材の押しあて圧をあｔｂあげるとトナーの融着等
の問題が発生し、摺擦部材の硬度を低くすることは、摺
擦部材に要求される耐摩耗性に優れ、圧縮永久ひずみが
小さく、引裂強さ等も強いなどの他の特性と相反する場
合が多く、充分な接触面積を得ることは困難である。WI rubbing members usually have elastic bodies such as urethane rubber or silicone rubber arranged concentrically around a metal shaft for the purpose of a sliding effect. On the other hand, in order to increase the rubbing effect, K is
It is necessary to increase the contact area between the sliding member and the image carrier, but there is a limit to the diameter of the sliding member.
If the pressing pressure of the sliding member is increased, problems such as toner fusion will occur, and lowering the hardness of the sliding member will improve the abrasion resistance required of the sliding member and reduce compression set. In many cases, it is difficult to obtain a sufficient contact area because the contact area is small and is often contradictory to other properties such as high tear strength.
本発明は、このような現状を鑑みてなされたものであっ
て、摺擦部材と像担持体との接触面積を押しあて圧や摺
擦部材の材質、硬度に規制されずに、大きくすることが
できるクリーニング装置を提供することを目的とするも
のであって、場合によっては接触ｒｆＪ積を変化させる
ことができることを特徴としている。The present invention has been made in view of the current situation, and it is an object of the present invention to increase the contact area between the rubbing member and the image carrier without being restricted by the pressing pressure or the material and hardness of the sliding member. The object of the present invention is to provide a cleaning device that can change the contact rfJ product depending on the case.
次に本発明の実施例を図向く従って説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
（実施例１）
第２図は本実施例の摺擦部材の部分を示している。この
摺擦ベルト２０２は、平行して並んだ２本のローラ２０
５・２０４の間隔により、太きな接触面積を得て像担持
体２旧表向全幅くわたって接触している。さらにこの摺
擦ベルト２０２は、両端がそれぞれローラ２０５，２０
６ Ｋ巻かれていて、本実施例では摺擦ベル） ２０２
の往復運動で摺擦を行なっている。(Example 1) FIG. 2 shows a portion of the sliding member of this example. This rubbing belt 202 consists of two rollers 20 arranged in parallel.
Due to the spacing of 5.204 mm, a large contact area is obtained, and the entire width of the image carrier 2 is in contact with the front surface thereof. Further, this rubbing belt 202 has rollers 205 and 20 at both ends, respectively.
6K wound, in this example a sliding bell) 202
Sliding is performed by the reciprocating motion of the
このとき摺擦ベル） ２０２の材質状耐摩耗性の大きい
ものならは適宜選択することができ、摺擦ベルト２０２
およびローラー２０３，２０４の硬度の許容巾も広い。At this time, the material of the sliding belt 202 can be appropriately selected as long as it has high abrasion resistance.
Furthermore, the hardness of the rollers 203 and 204 has a wide range of tolerance.
なお図中２０７は残留トナーを除去するための弾性ブレ
ードである。・
（実施例２）
第３図は、摺擦部材に無端ベル） ５０２を用いたもの
である。また、３ｏ３・５０４・５０５はベルト５０２
を懸架する駆動ローラで、感光体１０１の軸心と平行に
設定されている。これによ）一定の回転運動でベル）
３０２は感光体１０１走行の摺擦を行なうことができ、
運動の機構を簡単にすることができる。なお、ローラ３
ｏ３・３０４・５０５のうちいずれか一つが駆動ローラ
であっても良い。Note that 207 in the figure is an elastic blade for removing residual toner. - (Example 2) Fig. 3 shows an example in which an endless bell 502 is used as the sliding member. Also, 3o3, 504, and 505 are belts 502
The drive roller suspends the photoreceptor 101 and is set parallel to the axis of the photoreceptor 101. Due to this) bell with constant rotational motion)
302 is capable of rubbing the photoreceptor 101 as it travels;
The movement mechanism can be simplified. In addition, roller 3
Any one of o3, 304, and 505 may be a driving roller.
第４図（ム）は、無端ベルト３０２を懸架するローラ４
０４または４０５ｔ−感光体１０１の走行方向へ移動で
きるようにして、摺擦ベルト４０２の感光体１０１への
接触面積を可変できるようｋしたものである。本実施例
の場合には、固定ローラ４０３を駆動ローラにして他は
従動ローラにすれば、ロー２４０４あるいはロー２４０
５の変位機構を簡単にできる。FIG. 4 (mu) shows the roller 4 on which the endless belt 302 is suspended.
04 or 405t - This is designed to be movable in the traveling direction of the photoreceptor 101 and to vary the contact area of the rubbing belt 402 to the photoreceptor 101. In the case of this embodiment, if the fixed roller 403 is a driving roller and the others are driven rollers, the row 2404 or the row 240
5 displacement mechanism can be easily made.
なお、第４図ＧＢＩを用いて、ローラの変位機構につい
て説明する。Note that the roller displacement mechanism will be explained using FIG. 4 GBI.
９４図（Ｂ） Ｋ於いて、ロー２４０３・４０４・４０
５は各々軸受４１０・４１）・４１２で支持されてお）
、ローラ４０４・４０５は丸長穴４０８・４０９内を移
動可能になっている。また、ローラ４０４・４０５は部
材４０７を介して連動している。従って、ローラ４ＱＳ
・４０４間のドラム１０１へのＪＩＩ擦幅を広げたいと
きには、ローラ４０４を丸長大４０８に沿って移動すれ
ば良い。このときローラ４０５は丸長大４０９に沿って
一点鎖線の位−へ移動する。しかるのち図示しないロッ
ク手段によシ例えば４０７を枠体４１３に固定すること
によシ、摺擦中を広げた状態でベルト３０２は摺電可能
となる。Figure 94 (B) In K, low 2403, 404, 40
5 are supported by bearings 410, 41) and 412 respectively)
, rollers 404 and 405 are movable within round elongated holes 408 and 409. Further, the rollers 404 and 405 are interlocked via a member 407. Therefore, roller 4QS
- If you want to widen the JII rubbing width on the drum 101 between the rollers 404, you can move the roller 404 along the round length 408. At this time, the roller 405 moves along the circular length 409 to the position indicated by the dashed line. Thereafter, by fixing, for example, 407 to the frame body 413 using a locking means (not shown), the belt 302 becomes able to slide with the sliding portion expanded.
第５図は、摺擦ベルト３０２上の残留トナー中紙粉など
を除去するためスクレーパー５０７を設は丸ものである
。摺擦ベルト５０２０弾性のためスクレーパー５０７の
位置の許容巾が広がシ、特にスクレーパー位置の調整機
構を設けなくても、スクレーパー不良などは発生しない
。In FIG. 5, a scraper 507 is installed to remove residual toner and paper powder on the rubbing belt 302. Due to the elasticity of the rubbing belt 5020, the permissible width of the position of the scraper 507 is widened, and scraper defects do not occur even if a mechanism for adjusting the position of the scraper is not provided.
なお、この接触面積ｆ１４整機構とスクレーパーは実施
例１で行なっても、同鎌の効果をあげることができる。Note that even if the contact area f14 adjusting mechanism and scraper are used in the first embodiment, the effect of the sickle can still be obtained.
以上本発明は、クリーニング効果を向上させることので
きるクリーニング装置を提供するものである。As described above, the present invention provides a cleaning device that can improve the cleaning effect.
第１図は従来のクリーニング装置を備えた複写機の概略
断面図、ｊＩＩ２図・縞５図・第４図俸：・第４図（Ｂ
）・第５図は本発明を適用したクリーニング装置の各実
施例断面図である。
図において、
１０１・・・ＭＡ元体
１０２１０６・・φコロナ放電器
１０３・・・像露光
１０４・・・現偉器
１０５・・・転写部材搬送路
１０７・・拳りリーニング装駿
１０７−１・嗜０摺擦ローラ
１０７−２・・・クリーニングブレード１０７−４・・
・スクレーパー−
１０７−４・・・排トナー搬送スクリュー１０８・・・
前露光
１０９φ・・転写部材
２０２．３０２ 、、、 Ｎ１）！ｊ［ベルト４０３．
４０４，５．０！、５０４・−・ローラー１０７−２・
・・ブレード
５０７・・・スクレーパで−Figure 1 is a schematic sectional view of a copying machine equipped with a conventional cleaning device.
)・FIG. 5 is a sectional view of each embodiment of a cleaning device to which the present invention is applied. In the figure, 101... MA original body 102106... φ corona discharger 103... Image exposure 104... Developing device 105... Transfer member conveyance path 107... Fist leaning equipment 107-1. Scrub roller 107-2...Cleaning blade 107-4...
・Scraper 107-4...Discharge toner conveying screw 108...
Pre-exposure 109φ...Transfer member 202.302...N1)! j [Belt 403.
404,5.0! , 504...Roller 107-2.
...Blade 507...with scraper-
Claims (4)
いることにより、像担持体表面を摺擦するベルト状摺擦
部材と、を有することを特徴とする画像形成装置のクリ
ーニング装置。(1) A means for removing residual toner on the surface of the image carrier; and a means for removing residual toner on the surface of the image carrier; A cleaning device for an image forming apparatus, comprising: a belt-like rubbing member that rubs the surface of a carrier.
囲第（１）項記載の画像形成装置のクリーニング装置。(2) A cleaning device for an image forming apparatus according to claim (1), wherein the sliding member is in the shape of an endless belt.
並ぶ２本のローラ間で像担持体に接触している特許請求
の範囲第（１）項または第（２）項記載の画像形成装置
のクリーニング装置。(3) The belt-like sliding member is in contact with the image carrier between two rollers arranged in the running direction of the image carrier. Cleaning device for image forming apparatus.
体の走行方向に移動して摺擦部材の像担持体への接触面
積が必要に応じて変化する特許請求の範囲第（３）項記
載の画像形成装置のクリーニング装置。(4) At least one of the two rollers moves in the running direction of the image carrier to change the contact area of the rubbing member to the image carrier as necessary. A cleaning device for an image forming apparatus as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59242043A JPS61121076A (en) | 1984-11-16 | 1984-11-16 | Cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59242043A JPS61121076A (en) | 1984-11-16 | 1984-11-16 | Cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61121076A true JPS61121076A (en) | 1986-06-09 |
Family
ID=17083416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59242043A Pending JPS61121076A (en) | 1984-11-16 | 1984-11-16 | Cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61121076A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452065A (en) * | 1994-10-04 | 1995-09-19 | Xerox Corporation | Combination photoreceptor and fuser roll cleaner with additional oil supply function |
| US7024150B2 (en) | 2002-09-17 | 2006-04-04 | Brother Kogyo Kabushiki Kaisha | Separable cleaning device for an image forming apparatus |
| JP2007298816A (en) * | 2006-05-01 | 2007-11-15 | Fuji Xerox Co Ltd | Image forming apparatus |
| EP2416224A3 (en) * | 2010-08-06 | 2014-07-30 | Kyocera Document Solutions Inc. | Image forming apparatus and fixing device |
-
1984
- 1984-11-16 JP JP59242043A patent/JPS61121076A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452065A (en) * | 1994-10-04 | 1995-09-19 | Xerox Corporation | Combination photoreceptor and fuser roll cleaner with additional oil supply function |
| US7024150B2 (en) | 2002-09-17 | 2006-04-04 | Brother Kogyo Kabushiki Kaisha | Separable cleaning device for an image forming apparatus |
| JP2007298816A (en) * | 2006-05-01 | 2007-11-15 | Fuji Xerox Co Ltd | Image forming apparatus |
| EP2416224A3 (en) * | 2010-08-06 | 2014-07-30 | Kyocera Document Solutions Inc. | Image forming apparatus and fixing device |
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| JPH06274010A (en) | Image forming device |