JPH02244085A - Cleaning device - Google Patents
Cleaning deviceInfo
- Publication number
- JPH02244085A JPH02244085A JP23519289A JP23519289A JPH02244085A JP H02244085 A JPH02244085 A JP H02244085A JP 23519289 A JP23519289 A JP 23519289A JP 23519289 A JP23519289 A JP 23519289A JP H02244085 A JPH02244085 A JP H02244085A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- scraping
- plate
- cleaning device
- feeding
- 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 38
- 238000007790 scraping Methods 0.000 claims abstract description 65
- 108091008695 photoreceptors Proteins 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000035553 feeding performance Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Cleaning In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は転写式電子写真複写装置のクリーニング装置で
あって、特に感光体より除去されたトナーを一方向に円
滑に掻き送り、良好なトナー回収を行なうクリーニング
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is a cleaning device for a transfer type electrophotographic copying device, and in particular, it smoothly scrapes toner removed from a photoconductor in one direction, and cleans the toner in a good manner. This invention relates to a cleaning device that performs collection.
転写式の電子写真複写装置に於ては、トナーにより現像
した静電像を転写紙に転写した後の感光ドラム上には依
然としてトナーが残留しており、斯かるトナーは、感光
体の再使用のために除去されねばならない。In a transfer-type electrophotographic copying device, toner still remains on the photosensitive drum after the electrostatic image developed with toner is transferred to transfer paper, and such toner is removed when the photosensitive drum is reused. must be removed for.
感光体上に残留するトナーを除去するクリーニング装置
として従来種々の装置が用いられているが、そのうちの
一つにブレードをクリーニング装置がある。斯かる装置
は、第一図に示す如く、クリーニングブレードＢを感光
体表面に当接し感光体上に残留するトナーを剥離させる
もので、構成が簡単であるという利点を有している反面
、クリニング時間の経過に伴いトナー溜りＸ部のみなら
ず装置ハウジングの開口Ｙ部近傍にトナーが堆積する傾
向を有しており、開口Ｙ部近傍に堆積するトナーは該開
口Ｙ部より飛散したりこぼれたりし易く、装置の汚損や
クリーニング不良の原因となるものである。Conventionally, various devices have been used as cleaning devices for removing toner remaining on a photoreceptor, and one of them is a blade cleaning device. As shown in Fig. 1, such an apparatus has a cleaning blade B that comes into contact with the surface of the photoreceptor to peel off the toner remaining on the photoreceptor, and has the advantage of a simple configuration. As time passes, toner tends to accumulate not only in the toner pool X but also near the opening Y of the device housing, and the toner that accumulates near the opening Y may scatter or spill from the opening Y. This is easy to do, and can cause soiling of the device and poor cleaning.
前記欠点を解決する手段として特開昭４８−４３３４３
号公報に記載されｔ；クリーニング装置が知られている
。前記公報に記載のクリーニング装置は感光体表面より
トナーを除去した後、断面が四角形状のブロック体（ブ
ランケット）を回動して、前記ブロックの先端でトナー
を掻き送る構造となっている。しかるに前記の如きブロ
ック体でトナーを掻き送る方法では、クリーニング装置
の床面に落下、堆積したトナーはブロック体面と先端で
床面に圧縮されて押しつけられることになり、抵抗力が
増してブロック体が円滑に回転できなくなるという欠点
がある。従ってクリーニング装置の床面とブロック体の
先端間隙を大きくとれば前記の欠点は解決されるが、ト
ナーの掻き送り量が極端に減少し、クリーニングされた
トナーを常に所定量円滑に掻き送ることができなくなる
ため、クリーニング装置ハウジングの開口近傍にトナー
が堆積し、開口より飛散したりこぼれたりし易くなると
いう欠点が生じる。As a means to solve the above-mentioned drawbacks, Japanese Patent Application Laid-Open No. 48-43343
A cleaning device is known as described in the above publication. The cleaning device described in the above-mentioned publication has a structure in which, after removing toner from the surface of the photoreceptor, a block (blanket) having a square cross section is rotated, and the toner is scraped away with the tip of the block. However, in the method of scraping toner with the block body as described above, the toner that falls and accumulates on the floor of the cleaning device is compressed and pressed against the floor surface by the block body surface and tip, increasing the resistance force and pushing the block body. The disadvantage is that it cannot rotate smoothly. Therefore, if the gap between the floor surface of the cleaning device and the tip of the block body is increased, the above-mentioned drawbacks can be solved, but the amount of toner raking is extremely reduced, making it difficult to always smoothly raking a predetermined amount of cleaned toner. As a result, toner accumulates in the vicinity of the opening of the cleaning device housing, resulting in a disadvantage that the toner is likely to scatter or spill from the opening.
〔本発明の目的〕
本発明は前記のような従来のクリーニング装置のもつ欠
点を排陰するもので、感光体表面から除ナー溜り部に送
り込むことにより、クリーニング装置よりトナーが飛散
、又はこぼれによる装置の汚損を防止することを目的と
するものである。[Object of the present invention] The present invention eliminates the drawbacks of the conventional cleaning device as described above. By sending toner from the surface of the photoreceptor to the toner removal reservoir, the toner is removed from the cleaning device due to scattering or spillage. The purpose is to prevent contamination of the equipment.
本発明は、転写工程終了後の感光体表面に残留している
トナーを除去するように構成したクリーニング装置にお
いて、
前記除去されたトナーをトナー溜りへ掻き送るべく回動
軸のまわりに回動可能に設けられ、支持基体と掻き送り
板により構成された掻き送り手段と、
前記掻き送り手段の回動により前記掻き送り板と当接し
て付着したトナーを除去するように、前記掻き送り手段
と前記トナー溜り間に配置されたトナー掻き取り板とを
有することを特徴とするクリーニング装置により達成さ
れるものである。The present invention provides a cleaning device configured to remove toner remaining on the surface of a photoreceptor after a transfer process, which is rotatable around a rotation axis to scrape the removed toner into a toner reservoir. a scraping means provided on the support substrate and a scraping plate, the scraping means and the scraping unit configured to remove toner adhered to the scraping plate through rotation of the scraping unit; This is achieved by a cleaning device characterized by having a toner scraping plate disposed between toner reservoirs.
以下、図面に示す本発明の実施例について説明する。 Embodiments of the present invention shown in the drawings will be described below.
第２図は本発明に係るクリーニング装置を採用した電子
写真複写装置のプロセスの概略を示す。FIG. 2 schematically shows the process of an electrophotographic copying apparatus employing the cleaning device according to the present invention.
感光ドラムｌは公知の方法による帯ｔ（ａ）、露光（ｂ
）、現像（Ｃ）、転写（ｄ）の各ステージタンを通過し
た後クリーニングステーション（ｅ）に至る。The photosensitive drum 1 has a band t (a) and an exposure (b) formed by a known method.
), development (C), and transfer (d) stages before reaching the cleaning station (e).
クリーニングステーション（ｅ）のクリーニング装置を
第３図を用いて詳述する。The cleaning device of the cleaning station (e) will be explained in detail with reference to FIG.
第３図は本発明を採用したクリーニング装置の断面を示
す。図中１は感光ドラム、２はクリーニングブレードで
公知の方法により該感光ドラム上に形成せしめた画像を
転写紙に転写した後の該感光ドラム上に残留するトナー
を剥離せしめる。３は軸５）Ｉ−１を中心に揺動する支
持板４によって支持されるトナー案内板で、該案内板は
トナーが付着、堆積しにくく感光ドラムに悪影響を・与
えぬ材料で形成しである。該案内板は、感光ドラムｌよ
り剥離せしめられたトナーの落下方向をガイドし、クリ
ーニング装置ハウジング開口部より該トナーが飛散した
り、こぼれたりするのを防止する。５はトナー案内板に
よりガイドされ落下し、トナー溜りのハウジング斜面Ｓ
部近傍に堆積するトナーをトナー溜りの０部へ掻き送る
掻き送り装置で、複写操作時は、公知な駆動源により駆
動される軸５）ｌ−２を中心に鎖線の軌道を描きなから
該軸５Ｈ−２と一体的に常時回動している。該掻き送り
装置は掻き送り板５００及び該掻き送り板支持基体５０
１より構成され、該掻き送り装置の回動の際支持基体５
０１が軸５Ｈ−１と当接し、結果としてトナー案内板３
及び支持板４を＠振動させる。FIG. 3 shows a cross section of a cleaning device employing the present invention. In the figure, 1 is a photosensitive drum, and 2 is a cleaning blade that peels off toner remaining on the photosensitive drum after an image formed on the photosensitive drum is transferred to a transfer paper by a known method. Reference numeral 3 denotes a toner guide plate supported by a support plate 4 that swings around a shaft 5) I-1, and the guide plate is made of a material that prevents toner from adhering or accumulating and does not adversely affect the photosensitive drum. be. The guide plate guides the falling direction of the toner peeled off from the photosensitive drum l, and prevents the toner from scattering or spilling from the opening of the cleaning device housing. 5 is guided by the toner guide plate and falls to the housing slope S of the toner reservoir.
This is a scraping device that scrapes the toner accumulated near the toner reservoir to the 0 part of the toner reservoir.During copying operations, it draws a chain line trajectory around the shaft 5)l-2, which is driven by a known drive source. It constantly rotates integrally with the shaft 5H-2. The scraping device includes a scraping plate 500 and a scraping plate support base 50.
1, and when the scraping device rotates, a supporting base 5
01 comes into contact with the shaft 5H-1, and as a result, the toner guide plate 3
and vibrate the support plate 4.
尚、掻き送り装置５は常時回動でなく間歇的回動であっ
ても良い。前記トナー溜りを形成しているハウジング部
材は、トナー廃棄のため一部を着脱自在となしている。Note that the scraping device 5 may not be rotated all the time but may be rotated intermittently. A portion of the housing member forming the toner reservoir is detachable for toner disposal.
６はトナー掻き取り装置で、弾性を有するＰＥＴベース
より成る掻き取り板６００を保持部材６０１に固定した
ものである。斯かる掻く取り板の材質としては、前記Ｐ
ＥＴベースの他、各種ゴム、合成樹脂シート、ステンレ
ス、リン置網等の弾性体であれば良い。該掻き取り装置
６と前記掻き送り装置５の関係を第４図を用いて説明す
る。6 is a toner scraping device in which a scraping plate 600 made of an elastic PET base is fixed to a holding member 601. The material of such a scraping board is the above-mentioned P.
In addition to the ET base, any elastic material such as various rubbers, synthetic resin sheets, stainless steel, or phosphor nets may be used. The relationship between the scraping device 6 and the scraping device 5 will be explained using FIG. 4.
トナー掻き送り板５００に付着、堆積したトナーは、該
トナー掻き取り板６００が掻き送り板５００と当接し該
掻き送り板５００に押圧され弾性変形する間に、掻き送
り板５００より除去される。該掻き送り板５００の抑圧
が解除されればトナー掻き取り板６００は自身の有する
弾性力により元位置に復帰する。The toner that has adhered and accumulated on the toner scraping plate 500 is removed from the scraping plate 500 while the toner scraping plate 600 contacts the scraping plate 500 and is pressed by the scraping plate 500 to be elastically deformed. When the suppression of the scraping plate 500 is released, the toner scraping plate 600 returns to its original position due to its own elastic force.
次にトナーの挙動について第３図に戻って説明する。Next, the behavior of the toner will be explained with reference to FIG. 3 again.
クリーニングブレード２により感光ドラムｌから剥離せ
しめられたトナーは微振動をくり返す案内板３にガイド
されて該案内板３に堆積することなく落下する。クリー
ニング初期の段階ではトナーはハウジング底部り部付近
に堆積するが時間の経過に伴ってトナー量が増加すると
、トナーは次第に、ハウジング斜面に沿った８部に堆積
するようになる。８部に堆積したトナーは順次掻き送り
板５００によりトナー溜りの８部からＵ部へ掻き送られ
る。その際該掻き送り板５００にトナーが付着・堆積す
るが、該トナーを掻き送り板５００から除去しなければ
、該掻き送り板５００の掻き送り能力が減少しトナーは
８部の斜面に沿った全域、更には案内板３に堆積するよ
うになり、感光ドラムｌのクリーニングに悪影響を及ぼ
す結果を招くことになるが、トナー掻き取り板６００が
掻き送り板５００に付着するトナーを除去しており掻き
送り板５００は常にリフレッシュされた状態にあるので
トナー掻き送り能力は減少しない。掻き送り板５００に
より掻き送られＩ；トナーは掻き取り板６００による押
圧力及び該掻き取り板６００と保持部材６０１の仕切り
作用を受はトナー溜りのＵ部でくずれることなく順次堆
積し、掻き送り板５００や案内板３の方へこぼれること
はない。ハウジング内のトナー溜りに所定量のトナーが
堆積した時にはハウジングの着脱自在となした部分を取
りはずし、トナーの処理を行えば良い。The toner peeled off from the photosensitive drum 1 by the cleaning blade 2 is guided by the guide plate 3 that repeatedly vibrates, and falls without being deposited on the guide plate 3. At the initial stage of cleaning, the toner is deposited near the bottom of the housing, but as the amount of toner increases over time, the toner gradually comes to be deposited in eight areas along the slope of the housing. The toner accumulated in the 8th part is successively scraped away from the 8th part of the toner reservoir to the U part by the scraping plate 500. At this time, toner adheres and accumulates on the scraping plate 500, but unless the toner is removed from the scraping plate 500, the scraping ability of the scraping plate 500 decreases, and the toner does not move along the slope of part 8. The toner will accumulate on the entire area and even on the guide plate 3, which will have a negative effect on the cleaning of the photosensitive drum l, but the toner scraping plate 600 removes the toner adhering to the scraping plate 500. Since the scraping plate 500 is always refreshed, the toner scraping ability does not decrease. The toner is scraped and fed by the scraping plate 500. The toner is subjected to the pressing force of the scraping plate 600 and the partitioning action of the scraping plate 600 and the holding member 601, and is deposited one after another without collapsing in the U portion of the toner reservoir, and is scraped away. It will not spill toward the board 500 or the guide board 3. When a predetermined amount of toner has accumulated in the toner reservoir within the housing, the removable portion of the housing can be removed and the toner can be disposed of.
尚、前記掻き取り板６００と掻き送り板５００の関係は
図示実施例に限るものではなく、掻き取り板６００の材
質、取り付は位置等は、トナー掻き送り板５００の回転
に悪影響を及ぼさず、掻き取り性能が良好であるような
関係であれば良い。The relationship between the scraping plate 600 and the scraping plate 500 is not limited to the illustrated embodiment, and the material, mounting position, etc. of the scraping plate 600 do not adversely affect the rotation of the toner scraping plate 500. , the relationship may be such that the scraping performance is good.
以上のように本発明は感光体表面に残留したトナーを除
去した後、クリーニング装置内に落下したトナーを支持
基体に設けられたトナー掻き送り板にて迅速且つ効率良
く、トナー溜り部に送り込むものであり、特に本発明は
トナー掻き送り手段を板状にし、トナーを横方向へ搬送
するので回動させても掻き送り板とクリーニング装置の
床面とでトナーを押しつけることがなくトナー送りが確
実となる。As described above, in the present invention, after removing the toner remaining on the surface of the photoreceptor, the toner that has fallen into the cleaning device is quickly and efficiently sent to the toner reservoir using the toner scraping plate provided on the supporting base. In particular, in the present invention, the toner scraping and feeding means is made into a plate shape and the toner is conveyed in the horizontal direction, so that even when the toner is rotated, the toner is not pressed between the scraping plate and the floor surface of the cleaning device, and the toner can be fed reliably. becomes.
また、板状にしたことにより一回の回動で多量のトナー
を掻き送ることが可能となり、トナーが開口部へ推漬す
ることによるトナー飛散、こぼれが発生せず、複写機の
高速化にも対応できるものである。又、前記トナー掻き
送り板の先端がクリーング装置の床面に接触しても板状
に形成されているため、変曲変形も可能であり、製作上
特に高精度に製作する必要もなく、製作も容易である等
の効果もあるIn addition, the plate shape allows a large amount of toner to be scraped away with a single rotation, eliminating toner scattering and spilling caused by toner being immersed in the opening, and increasing the speed of copying machines. can also be handled. In addition, since the tip of the toner scraping plate is formed into a plate shape even when it comes into contact with the floor surface of the cleaning device, it can be bent and deformed, and there is no need to manufacture it with high precision. It also has the effect of being easy to use.
第１図は従来のブレード型クリーニング装置を示す図、
第２図は本発明を採用した電子写真複写装置の簡単なプ
ロセスを示す図、第３図はクリーニング装置の断面を示
す図、第４図は掻き送り装置と掻き取り装置の関連を示
す図である。
ｌ・・・感光ドラム
２・・・クリーニングブレード
３・・・案内板
４・・・支持板
５・・・掻き送り装置
５００・・・掻き送り板
５０１・・・支持基体
６・・・掻き取り装置
６００・・・掻き取り板
６０１・・・保持部材
ａ・・・帯電ステーション
ｂ・・・露光ステシージョン
Ｃ・・・現像ステーション
ｄ・・・転写ステージ日ン
ｅ・・・クリーニングステーションFig. 1 is a diagram showing a conventional blade type cleaning device;
Fig. 2 is a diagram showing a simple process of an electrophotographic copying apparatus employing the present invention, Fig. 3 is a diagram showing a cross section of the cleaning device, and Fig. 4 is a diagram showing the relationship between the scraping device and the scraping device. be. l... Photosensitive drum 2... Cleaning blade 3... Guide plate 4... Support plate 5... Scraping feeding device 500... Scraping feeding plate 501... Support base 6... Scraping Apparatus 600...Scraping plate 601...Holding member a...Charging station b...Exposure station C...Development station d...Transfer stage e...Cleaning station
Claims (1)
去するように構成したクリーニング装置において、 前記除去されたトナーをトナー溜りへ掻き送るべく回動
軸のまわりに回動可能に設けられ、支持基体と掻き送り
板により構成された掻き送り手段と、 前記掻き送り手段の回動により前記掻き送り板と当接し
て付着したトナーを除去するように、前記掻き送り手段
と前記トナー溜り間に配置されたトナー掻き取り板とを
有することを特徴とするクリーニング装置。[Scope of Claims] A cleaning device configured to remove toner remaining on the surface of a photoreceptor after the transfer process is completed, the cleaning device being rotated around a rotating shaft to scrape the removed toner to a toner reservoir. a scraping means that is movably provided and constituted by a support base and a scraping plate; and the scraping means is arranged such that toner attached to the scraping plate is removed by contact with the scraping plate when the scraping means rotates. and a toner scraping plate disposed between the toner reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23519289A JPH02244085A (en) | 1989-09-11 | 1989-09-11 | Cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23519289A JPH02244085A (en) | 1989-09-11 | 1989-09-11 | Cleaning device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7394178A Division JPS552225A (en) | 1978-06-19 | 1978-06-19 | Cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02244085A true JPH02244085A (en) | 1990-09-28 |
Family
ID=16982444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23519289A Pending JPH02244085A (en) | 1989-09-11 | 1989-09-11 | Cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02244085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012008483A (en) * | 2010-06-28 | 2012-01-12 | Fuji Xerox Co Ltd | Cleaning device and image forming device using the same |
| JP2016114842A (en) * | 2014-12-16 | 2016-06-23 | シャープ株式会社 | Powder recovery device and image forming apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843343A (en) * | 1971-09-27 | 1973-06-22 | Xerox Corp | |
| JPS6122315A (en) * | 1984-02-16 | 1986-01-30 | エスティーシー ピーエルシー | Optical fiber cable and manufacture thereof |
-
1989
- 1989-09-11 JP JP23519289A patent/JPH02244085A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843343A (en) * | 1971-09-27 | 1973-06-22 | Xerox Corp | |
| JPS6122315A (en) * | 1984-02-16 | 1986-01-30 | エスティーシー ピーエルシー | Optical fiber cable and manufacture thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012008483A (en) * | 2010-06-28 | 2012-01-12 | Fuji Xerox Co Ltd | Cleaning device and image forming device using the same |
| JP2016114842A (en) * | 2014-12-16 | 2016-06-23 | シャープ株式会社 | Powder recovery device and image forming apparatus |
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