JPS5816280A - Cleaning device - Google Patents
Cleaning deviceInfo
- Publication number
- JPS5816280A JPS5816280A JP11122982A JP11122982A JPS5816280A JP S5816280 A JPS5816280 A JP S5816280A JP 11122982 A JP11122982 A JP 11122982A JP 11122982 A JP11122982 A JP 11122982A JP S5816280 A JPS5816280 A JP S5816280A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- developer
- collection box
- cleaning blade
- image 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.)
- 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
- G03G21/10—Collecting or recycling waste developer
- G03G21/12—Toner waste containers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、像担持体たとえば感光体表面に付着した現像
剤をクリーニングブレードによって掻落して清掃するク
リーニング装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a cleaning device for cleaning an image carrier, such as a photoreceptor, by scraping off developer attached to the surface with a cleaning blade.
ブレード掻落し方式のクリーニング装置は回転ブラシ式
のものに比較してトナーの飛散がなく大がかりな集塵装
置を必要としないといった長所があり、数多くの複写機
に採用されている。Compared to rotating brush type cleaning devices, blade scraping type cleaning devices have the advantage of not scattering toner and do not require large-scale dust collectors, and are used in many copying machines.
しかし、従来においては第１図に示すように像担持体た
とえば感光体ａの表面の残留現像剤す全シリコンゴム等
からなるクリーニングブレードＣによって掻落すとと妃
に掻落した現像剤すを柔軟性を有する密閉用ローラｄの
回転に伴って現像剤収集箱ｅ側に運ばれたのち、スクレ
ーｉ４ ｆ ｆ介して現像剤収集箱ｅに収容される構成
となっているにすぎない。したがって、例えば機械の修
理、または感光体の清掃、交換等において感光体ａを複
写機本体から取外すと掻落した現像剤すがこほれ落ち本
体内を汚すという問題がある。However, in the past, as shown in FIG. 1, when all the residual developer on the surface of an image carrier, for example, a photoreceptor a, is scraped off with a cleaning blade C made of silicone rubber, the scraped developer remains flexible. It is simply constructed such that it is transported to the developer collection box e side as the sealing roller d rotates and is then stored in the developer collection box e via the scraper i4ff. Therefore, when the photoreceptor a is removed from the main body of the copying machine, for example, when repairing the machine or cleaning or replacing the photoreceptor, there is a problem that the scraped developer scum falls off and contaminates the inside of the main body.
本発明は、上記事情にもとづきなされたもので、その目
的とするところは、クリーニングブレードによって掻取
られた現像剤を感光体等の像担持体から離れた位置に案
内する案内部材を設けるとともにこの案内部材を上記ク
リ一二ングブレードが上記像担持体から離間せしめられ
るのに先行して像担持体に接近せしめることにより、本
体内の汚れ全防止し得るようにしたクリーニング装置を
提供しようとするものである。The present invention has been made based on the above circumstances, and its object is to provide a guide member that guides the developer scraped off by a cleaning blade to a position away from an image carrier such as a photoreceptor, and to It is an object of the present invention to provide a cleaning device which is capable of completely preventing contamination within a main body by bringing a guide member close to an image carrier before the cleaning blade is separated from the image carrier. It is something.
以下、本発明の一実施例を第２図および第３図にもとづ
いて説明する。図中１は像担持体であるところの感光体
２の側部に対向して配設されたクリーニング装置であり
、つぎのように構成されている。すなわち、３は感光体
２が定位置にあるとき、この下端縁が感光体２の表面に
圧接して残留現像剤ｂｌ掻落すクリーニングブレードで
あり、この下方には感光体２０表面に転接して感光体２
の回転方向と逆の方向に回転シ、上記クリーニングブレ
ード３で掻落した現像剤ｂ’ｌ感光体２０表面から運び
出す柔軟性を有した密閉ローラ４が設けられている。捷
だ、密閉ローラ４によって感光体２の表面から離れる方
向に運ばれた現像剤すはスクレーパ５により密閉ローラ
４の表面から掻落されて現像剤収集箱６に収容される構
造となっている。An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. In the figure, reference numeral 1 denotes a cleaning device disposed opposite to the side of a photoreceptor 2, which is an image carrier, and is constructed as follows. That is, when the photoreceptor 2 is in a fixed position, 3 is a cleaning blade whose lower edge comes into pressure contact with the surface of the photoreceptor 2 and scrapes off the residual developer BL, and below this blade there is a cleaning blade which is in rolling contact with the surface of the photoreceptor 20. Photoreceptor 2
A flexible sealing roller 4 is provided which rotates in a direction opposite to the rotational direction of , and carries out the developer b'1 scraped off by the cleaning blade 3 from the surface of the photoreceptor 20 . The developer is transported away from the surface of the photoreceptor 2 by the sealing roller 4, is scraped off from the surface of the sealing roller 4 by a scraper 5, and is stored in a developer collection box 6.
上記トナー収集箱６は密閉ローラ４の下方まで延出する
傾斜底部６＆を有し、この傾斜底部６＆と密閉ローラ４
との間にクリーニングブレード３によって掻取られた現
像剤すを像担持体としての感光体２から離れた位置に案
内する案内部材としての樋状の補助現像剤収集箱７が位
置し得るようになっている。この補助現像剤収集箱７は
長手方向両端を感光体２の両端側に位置して設けられた
揺動アーム８．８の下端部に取着することによシ支承さ
れている。The toner collection box 6 has an inclined bottom 6& extending below the sealing roller 4, and the inclined bottom 6& and the sealing roller 4
A gutter-shaped auxiliary developer collection box 7 serving as a guide member for guiding the developer scraped off by the cleaning blade 3 to a position away from the photoreceptor 2 as an image carrier can be located between the It has become. The auxiliary developer collection box 7 is supported by having both longitudinal ends attached to the lower ends of swing arms 8.8 provided at both ends of the photoreceptor 2.
上記揺動アーム８，８はクリーニングプｌ／ −ド３と
密閉ローラ４との間に位置して設けられた支軸９．９に
よって枢支され、この枢支部と補助現像剤収集箱７の取
付部との間に位置して感光体２の画像非形成部に転接し
得るガイドローラ１０がそれぞれ取着されている。The swinging arms 8, 8 are pivotally supported by a support shaft 9.9 located between the cleaning blade 3 and the sealing roller 4. A guide roller 10 is attached to each of the guide rollers 10, which is located between the mounting portion and the photoreceptor 2 and can roll into contact with the non-image forming portion of the photoreceptor 2.
また、揺動アーム８．８は上端に連結されたスプリング
１１．１１によって密閉ローラ４の回転方向と同じ方向
に回転するよう付勢されている。The swinging arm 8.8 is also urged to rotate in the same direction as the direction of rotation of the sealing roller 4 by a spring 11.11 connected to its upper end.
ソシテ、クリーニングブレード３が上記感光体２から離
間せしめられるのに先行して上記案内部材としての補助
現像剤収集箱７を感光体２に接近せしめる移動機構１２
を構成している。a moving mechanism 12 for bringing the auxiliary developer collecting box 7 as a guide member closer to the photoreceptor 2 before the cleaning blade 3 is separated from the photoreceptor 2;
It consists of
なお、１３．１３は揺動アーム′８，８の回動規制を行
うストッＡ？ビンであり、１４は補助現像剤収集箱７の
底部に形成された現像剤排出用スリットヲ開閉する開閉
板である。In addition, 13.13 is a stop A? which restricts the rotation of the swing arms '8, 8. 14 is an opening/closing plate that opens and closes a developer discharge slit formed at the bottom of the auxiliary developer collection box 7.
つぎに、上記実施例の動作を説明する。まず、感光体２
が定位置にあるときには、〃イドローラ１０．１０が感
光体２の画像非形成部に転接するため揺動アーム８，８
の下端部はスプリング１１．１１の付勢力に抗して押し
戻された状態にあり、これらの下端部に両端部を取着し
た案内部材としての補助現像剤収集箱７は第２図および
２．３図（イ）で示すように密閉ローラ４と現像剤収集
箱６の傾斜底部６ａとの間に位置している。また、この
とき、クリーニングブレード３の下端縁および密閉ロー
ラ４の周面が感光体２の表面に弾性的に接触した状態に
ある。そし５−
て、第３図（ハ）で示すように感光体２の表面の残留現
像剤すはクリーニングブレード３で掻落されたのち密閉
ローラ４の回転に伴って感光体２の表面から運び出され
、ついでスクレーノ９５を介して現像剤収集箱６内に収
容されることになるＯ
また、機械の修理または感光体２の清掃、交換等におい
て感光体２全複写機本体から取外すト同時にクリーニン
グブレード３が上記感光体２から離間せしめられるのに
先行して上記案内部材としての補助現像剤収集箱７が感
光体２に接近する。すなわち第３図（ロ）で示すように
揺動アーム８．８がスプリング１１．１１０付勢力によ
υ回動し、案内部材としての補助現像剤収集箱７がクリ
ーニングブレード３の下方に対向し、感光体２を取外す
ことによシこほれ落ちる現像剤すはこの補助現像剤収集
箱７内に収容され、複写機本体内を汚すことがない・
また、補助現像剤収集箱７内に収容された現像剤すは感
光体２を定位置にある状態すなわち６一
第２図および第３図（イ）の状態において、開閉板１３
を引抜いて底部に形成された現像剤排出用スリットヲ開
放することにより、現像剤収集箱６に移すことができる
。Next, the operation of the above embodiment will be explained. First, photoreceptor 2
When the is in the normal position, the swing arms 8, 8 are rotated because the idle rollers 10 and 10 roll into contact with the non-image forming part of the photoreceptor 2.
The lower ends of are in a state of being pushed back against the biasing force of springs 11, 11, and the auxiliary developer collection box 7 as a guide member having both ends attached to these lower ends is shown in FIGS. As shown in FIG. 3(a), it is located between the sealing roller 4 and the inclined bottom 6a of the developer collection box 6. Also, at this time, the lower edge of the cleaning blade 3 and the circumferential surface of the sealing roller 4 are in elastic contact with the surface of the photoreceptor 2 . 5- Then, as shown in FIG. 3(C), the residual developer on the surface of the photoreceptor 2 is scraped off by the cleaning blade 3 and then carried away from the surface of the photoreceptor 2 as the sealing roller 4 rotates. , and then stored in the developer collection box 6 via the screener 95. Also, when repairing the machine or cleaning or replacing the photoreceptor 2, the entire photoreceptor 2 is removed from the main body of the copying machine and the cleaning blade 3 is removed at the same time. The auxiliary developer collection box 7, which serves as the guide member, approaches the photoreceptor 2 before the developer is separated from the photoreceptor 2. That is, as shown in FIG. 3(b), the swinging arm 8.8 rotates υ due to the biasing force of the spring 11.110, and the auxiliary developer collection box 7 as a guide member faces below the cleaning blade 3. The developer that spills when the photoconductor 2 is removed is stored in the auxiliary developer collection box 7, so that it does not contaminate the inside of the copying machine. With the photoreceptor 2 in the fixed position, that is, in the state shown in FIGS.
By pulling out the developer and opening the developer discharge slit formed at the bottom, the developer can be transferred to the developer collection box 6.
なお、上述の一実施例において案内部材として樋状かつ
底部に現像剤排出中スリットを有する補助現像剤収集箱
７から構成し、開閉板１４を引き抜くことにより上記ス
リットを開放して収容した現像剤すを現像剤収集箱６に
移すようにしたが、たとえば第４図に示すようにしても
よい。すなわち、案内部材を断面路り字状の補助現像剤
収集箱７′から形成し、感光体２が取外されると同時に
ブレード３の下方に位置して現像剤すを受けるとともに
現像剤ｂｌ傾斜した平板部７ａを介して現像剤収集箱６
に移すようにしてもよい。要はクリーニングブレード３
によって掻取られた現像剤ｂｌ感光体２から離れた位置
へ確実に案内できればどのような構成であってもよい。In the above-mentioned embodiment, the guide member is composed of an auxiliary developer collecting box 7 which is shaped like a gutter and has a slit at the bottom for discharging the developer, and by pulling out the opening/closing plate 14, the slit is opened and the developer contained therein is removed. Although the developer is transferred to the developer collecting box 6, it may be transferred to the developer collection box 6, for example, as shown in FIG. That is, the guide member is formed from an auxiliary developer collecting box 7' having a cross-sectional shape, and at the same time when the photoreceptor 2 is removed, it is positioned below the blade 3 to receive the developer and also to tilt the developer bl. The developer collection box 6 is
You may also move it to Basically cleaning blade 3
Any configuration may be used as long as it can reliably guide the developer bl scraped off to a position away from the photoreceptor 2.
その他、本発明の要旨を変えない範囲で種々変形実施可
能なことは勿論である。It goes without saying that various other modifications can be made without departing from the gist of the present invention.
なお、上述の他の実施例（第４図）の説明において、前
述の一実施例と同一部分は同一の符号を付して説明を省
略する。In the description of the other embodiment described above (FIG. 4), the same parts as those of the above-mentioned embodiment are given the same reference numerals, and the explanation thereof will be omitted.
本発明は、以上説明したように、クリーニングブレード
によって掻取られた現像剤を感光体等の像担持体から離
れた位置に案内する案内部材を設けるとともにこの案内
部材を上記クリーニングブレードが上記像担持体から離
間せしめられるのに先行して像担持体に接近せしめるよ
うにしたから、像担持体とクリーニングブレードとが離
間するときこぼれ落ちた現像剤を確実に受けることがで
き、従来のように本体内を汚すことがないといった効果
を奏する。As described above, the present invention provides a guide member that guides the developer scraped off by the cleaning blade to a position away from an image bearing member such as a photoconductor, and the guide member is guided by the cleaning blade to the image bearing member. Since the image carrier is brought closer to the image carrier before it is separated from the body, the developer that spills out when the image carrier and the cleaning blade are separated can be reliably received, and the developer can be removed from the main body as before. This has the effect of not contaminating the surface.
第１図は従来装置の概略的構成図、第２図は本発明装置
の一実施例を示す斜視図、第３図（イ）（ロ）は同実施
例のそれぞれ異なる動作状態を示す概略的構成図、第４
図は本発明他の実施例を示す概略的構成図である。
１・・・クリーニング装置、２・・・像担持体、３・・
・クリーニングブレード、７．７’・・・案内部材、ｂ
・・・現像剤、１２・・・移動機構。
出願人代理人 弁理士 鈴 江 武 産室１図
ス
５Ｉ′２図Fig. 1 is a schematic configuration diagram of a conventional device, Fig. 2 is a perspective view showing an embodiment of the device of the present invention, and Figs. 3 (a) and (b) are schematic diagrams showing different operating states of the same embodiment. Configuration diagram, 4th
The figure is a schematic configuration diagram showing another embodiment of the present invention. 1...Cleaning device, 2...Image carrier, 3...
・Cleaning blade, 7.7'...guiding member, b
...Developer, 12...Movement mechanism. Applicant's representative Patent attorney Takeshi Suzue Maternity room Figure 1, Figure 5I'2
Claims (1)
リーニングブレードによって掻取るものにおいて、上言
己クリーニングブレードによって掻取られた現像剤を上
記像担持体から離れた位置へ案内する案内部材と、上記
像担持体に当接している上記クリーニングブレードが上
記像担持体から離間せしめられるのに先行して上記案内
部材を上記像担持体に接近せしめる移動機構とを具備し
てなることを特徴とするクリーニング装置。A guide member that guides the developer scraped off by the cleaning blade to a position away from the image bearing member, in a device that scrapes developer adhered to the image bearing member with a cleaning blade that comes into contact with the image bearing member. and a moving mechanism that causes the guide member to approach the image carrier before the cleaning blade in contact with the image carrier is separated from the image carrier. cleaning equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11122982A JPS5816280A (en) | 1982-06-28 | 1982-06-28 | Cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11122982A JPS5816280A (en) | 1982-06-28 | 1982-06-28 | Cleaning device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56072601A Division JPS5822746B2 (en) | 1981-05-14 | 1981-05-14 | cleaning equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816280A true JPS5816280A (en) | 1983-01-29 |
| JPH0149949B2 JPH0149949B2 (en) | 1989-10-26 |
Family
ID=14555820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11122982A Granted JPS5816280A (en) | 1982-06-28 | 1982-06-28 | Cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816280A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51112124A (en) * | 1975-03-15 | 1976-10-04 | Sankyo Seiki Mfg Co Ltd | Card lock release mechanism |
| JPS5719773A (en) * | 1981-05-14 | 1982-02-02 | Toshiba Corp | Cleaning device |
-
1982
- 1982-06-28 JP JP11122982A patent/JPS5816280A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51112124A (en) * | 1975-03-15 | 1976-10-04 | Sankyo Seiki Mfg Co Ltd | Card lock release mechanism |
| JPS5719773A (en) * | 1981-05-14 | 1982-02-02 | Toshiba Corp | Cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0149949B2 (en) | 1989-10-26 |
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