JPS6247075A - Method and device for developing electrostatic latent image - Google Patents
Method and device for developing electrostatic latent imageInfo
- Publication number
- JPS6247075A JPS6247075A JP18568785A JP18568785A JPS6247075A JP S6247075 A JPS6247075 A JP S6247075A JP 18568785 A JP18568785 A JP 18568785A JP 18568785 A JP18568785 A JP 18568785A JP S6247075 A JPS6247075 A JP S6247075A
- Authority
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- Japan
- Prior art keywords
- latent image
- electrostatic latent
- liquid
- developer
- 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.)
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Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は電子写真を応用した複写機、プリンタ等にお
ける静電潜像を現像する方法およびそのための現像装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of developing an electrostatic latent image in a copying machine, printer, etc. that uses electrophotography, and a developing device therefor.
（従来の技術）
静電潜像の現像における液体現像法は、微粒のトナーに
よる鮮明な画像が得られること、定着が簡単であること
などの理由で用いられており、その現像法は既知のごと
く静電潜像担持体または液体付着用ローラを液体現像中
に浸せきするか、またはミスト状やシャワー状にした液
体現像剤を静電潜像担持体に接触させる等の方法がとら
れていた。(Prior art) The liquid development method for developing electrostatic latent images is used because it can obtain clear images using fine toner particles and is easy to fix. Methods such as immersing an electrostatic latent image carrier or a liquid adhesion roller in liquid development, or bringing a liquid developer in the form of a mist or shower into contact with the electrostatic latent image carrier have been used. .
特公昭４０−１７４２８号公報記載の例は浸せき方式の
一例であって第６図にその概要を示す。すなわち、帯電
付与ローラ２３により回転ローラ２１上の現像用支持体
２２に電荷が付与される。この電荷の極性を現像液中の
トナー２５の電荷の極性と反対の符号を取るようにすれ
ばトナー２５は液中てこの支持体２２の表面に一様に析
出する。そしてローラ２１は回転しているので、そのの
ち支持体２２は液面よりはなれ、表面に吸着されたトナ
ー２５とそれに付着する分散媒２６の薄層を有する状態
で次第に上方に向い、ローラ３０に付着して上からおり
てきた感光シート２８と接触する。ここで感光シート２
８における静電潜像２９はその電荷により支持体２２上
のトナー２５を引き抜いて感光シート２８上に粉像を形
成する。この場合静電潜像２９の電荷の強度が支持体２
２上の電荷２７の強度より充分大きいことが必要である
。感光シート２８上の潜像２９の形成されていない部分
にはトナー２５は付着しない。したがって現像が行なわ
れることになる。そして支持体２２上に残った液体現像
剤２４はナイフェツジ３１によりけずり取られる。ナイ
フェツジ３１はアースされているので、これに接Ｕたと
き支持体２２は電荷を失い、帯電付与ローラ２３によっ
て再び帯電される。以上の過程を繰り返して行なえば連
続現像ができる。The example described in Japanese Patent Publication No. 40-17428 is an example of the immersion method, and its outline is shown in FIG. That is, the charge applying roller 23 applies electric charges to the developing support 22 on the rotating roller 21 . If the polarity of this charge is set to have an opposite sign to the polarity of the charge of the toner 25 in the developer, the toner 25 will be deposited uniformly on the surface of the support 22 in the solution. Since the roller 21 is rotating, the support 22 is then separated from the liquid surface and gradually moves upward with the toner 25 adsorbed on the surface and a thin layer of the dispersion medium 26 attached to it, and then the support 22 is moved toward the roller 30. It comes into contact with the photosensitive sheet 28 that adheres and comes down from above. Here, photosensitive sheet 2
The electrostatic latent image 29 at 8 draws out the toner 25 on the support 22 due to its electric charge and forms a powder image on the photosensitive sheet 28. In this case, the charge intensity of the electrostatic latent image 29 is
It is necessary that the intensity be sufficiently greater than the intensity of the charge 27 on 2. The toner 25 does not adhere to areas on the photosensitive sheet 28 where the latent image 29 is not formed. Therefore, development will be performed. The liquid developer 24 remaining on the support 22 is scraped off by a knife 31. Since the knife 31 is grounded, the support 22 loses its charge when it comes into contact with it, and is charged again by the charge imparting roller 23. Continuous development can be achieved by repeating the above process.
特公昭５１−１１４９７号公報記載の例はミスト方式の
一例であって第７図にその概要を示す。すなわち着色液
体供給源４１よりミスト発生装置４２中に着色液体４３
を供給し液面が常に一定になるよう調節されている。い
ま超音波発振装置５０により超音波振動子４４を振動さ
せると超音波レンズ４６により音エネルギーは超音波に
対してほぼ透明な合成樹脂膜４７付近に集束され着色液
体４３′を霧化させる。この時発生する着色液体のミス
ト５１の数は超音波振動子の周波数に一致し、しかも大
きさが数μｍの均一なミストが得られる。ミスト５１は
細いスクリーン電極５２および電極５３に直結した高圧
電源５４からの電圧印加により感光紙５５上の潜像と反
対符号の電荷に帯電させられた後、感光紙５５上の静電
潜像に静電的に付着し可視画像を形成する。The example described in Japanese Patent Publication No. 51-11497 is an example of a mist method, and its outline is shown in FIG. That is, the colored liquid 43 is supplied from the colored liquid supply source 41 into the mist generating device 42.
is supplied so that the liquid level is always constant. Now, when the ultrasonic vibrator 44 is vibrated by the ultrasonic oscillator 50, the sound energy is focused by the ultrasonic lens 46 near the synthetic resin film 47, which is substantially transparent to ultrasonic waves, and atomizes the colored liquid 43'. The number of colored liquid mist 51 generated at this time matches the frequency of the ultrasonic vibrator, and a uniform mist with a size of several μm can be obtained. The mist 51 is charged with a charge of the opposite sign to the latent image on the photosensitive paper 55 by applying a voltage from a high voltage power supply 54 directly connected to the thin screen electrode 52 and the electrode 53, and then the mist 51 is charged to the electrostatic latent image on the photosensitive paper 55. It attaches electrostatically and forms a visible image.
（発明が解決しようとする問題点）
しかし、これらの方式のものでは液体現像剤を静電潜像
担持体の表面全体に接触させることが必要なため非画線
部にも分散媒が付着し、現像後の液の処理が繁雑になる
という問題があった。すなわち現像過程終了時点におい
て静電潜像担持体の表面が分散媒でぬれているため、後
の過程でこれを除去することが必要であるのみならず、
液体の飛散やもれを防ぐため液密構造が必要になること
等が主なものである。(Problem to be Solved by the Invention) However, in these systems, it is necessary to bring the liquid developer into contact with the entire surface of the electrostatic latent image carrier, so the dispersion medium may adhere to non-image areas as well. However, there was a problem in that processing of the solution after development was complicated. In other words, since the surface of the electrostatic latent image carrier is wetted with the dispersion medium at the end of the development process, it is not only necessary to remove this in a later process;
The main reason is that a liquid-tight structure is required to prevent liquid from scattering or leaking.
そこで本発明は液体現像法の長所を生かしつつ乾式現像
法とほとんど同様に扱うことのできる静電潜像現像方法
および装置を提供しようとするものである。SUMMARY OF THE INVENTION Therefore, the present invention provides an electrostatic latent image developing method and apparatus that can be used in almost the same manner as a dry developing method while taking advantage of the advantages of a liquid developing method.
（問題点を解決するための手段）
上記問題点を解決するための本発明の技術的な手段は、
網目状の現像剤担持体の網目中に液体現像剤の液膜を形
成し、静電力によって液膜を静電潜像に付着させるもの
である。(Means for solving the problems) The technical means of the present invention for solving the above problems are as follows:
A liquid film of liquid developer is formed in the mesh of a mesh-like developer carrier, and the liquid film is attached to the electrostatic latent image by electrostatic force.
（作 用） この技術的手段による作用は次のようになる。(for production) The effect of this technical means is as follows.
すなわち一部が液体現像中に浸せきされた網目状の現像
剤担持体が移動するにしたがって、液体現１Ｓ′″Ｖ”
＋＝ ｗ ｒ＝ ｓ ｅ ＋＝ ４”６１”ｏ＊ｍｔ、
：、ｈｏ １て網目中に液膜を生じる。この液膜
を静電潜像担 ：特休に近接させると潜像電
位によって接触または １□
飛しようして現像することができる。この結果非画線部
には分散媒はほとんど付着せずしかも液体現ｅ！法の特
徴を生かした現像ができるのである。In other words, as the mesh-like developer carrier partially immersed in the liquid developer moves, the liquid developer 1S'''V''
+= w r= s e += 4”61”o*mt,
:, ho 1 produces a liquid film in the network. When this liquid film is brought close to an electrostatic latent image carrier, it can be developed by contacting or flying away due to the potential of the latent image. As a result, almost no dispersion medium adheres to the non-image areas, and the liquid remains e! This allows development to take advantage of the characteristics of the method.
（実施例） 以下に本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
第１図（ａ）において、１は現像剤担持体で１０〜１０
０メツシ一程度の網目を持−た全屈または樹脂
１でできておりその一部が液体現像剤２の中に浸
せきされている。In FIG. 1(a), 1 is a developer carrier and 10 to 10
Fully curved or resin with a mesh of about 0 mesh
1 and a part of it is immersed in liquid developer 2.
液体現像剤２はトナー粒子を絶縁性液体中に懸濁させた
通常の液体現像剤を用い、液槽４の中に一定量が入れら
れている。The liquid developer 2 is an ordinary liquid developer in which toner particles are suspended in an insulating liquid, and a fixed amount thereof is placed in a liquid tank 4 .
５は駆動ローラであって現像剤担持体１を保持すると共
に一定速度で駆動する。６は静電潜像担特休で通常の感
光体ドラムや通常の静電記録紙等が用いられる。A driving roller 5 holds the developer carrier 1 and drives it at a constant speed. Reference numeral 6 denotes an electrostatic latent image carrier, and an ordinary photosensitive drum, ordinary electrostatic recording paper, etc. are used.
以下に本実施例の動作を説明する。The operation of this embodiment will be explained below.
現像剤担持体１は駆動ローラ５によって静電潜像担持体
６の接線と平行に保持されると共に、静電潜像担持体６
と等速度で第１図（ａ）の矢印の方向に駆動される。現
像剤担持体１と静電潜像担持体６の間隙は０ 、５ｍｍ
以下に保たれる。The developer carrier 1 is held parallel to the tangent to the electrostatic latent image carrier 6 by the drive roller 5, and
It is driven at a constant speed in the direction of the arrow in FIG. 1(a). The gap between the developer carrier 1 and the electrostatic latent image carrier 6 is 0.5 mm.
It is kept below.
現像剤担持体１が矢印の方向に移動するにしたがって、
液体現像剤２より外に出た部分には表面張力の作用によ
って第１図（ｂ）に示すように液膜３が形成される。As the developer carrier 1 moves in the direction of the arrow,
A liquid film 3 is formed on the portion outside the liquid developer 2 due to the action of surface tension, as shown in FIG. 1(b).
さらに静電潜像担持体６に近接した部分９では液膜３は
静電潜像の静電力によって吸引され３′のごとくに変形
し静電潜像にトナーを付着させる。Further, in a portion 9 close to the electrostatic latent image carrier 6, the liquid film 3 is attracted by the electrostatic force of the electrostatic latent image and deforms as shown in 3', causing toner to adhere to the electrostatic latent image.
なお、現像剤担持体１の背面にノズル（図示せず）を設
け、弱い空気流によって液膜の吸引を助けることも有効
である。この際トナーは電気泳動によって液膜中を静電
潜像部へ移動し、よりコントラストの高い画像を再現す
ることができる。さらに現像剤担持体１が矢印の方向に
移動すると液膜３１は表面張力の作用によって引きもど
されるので静電潜像担持体６上には分散媒はほとんど残
らず、その後の過程において液体を除去する必要が発生
しない。Note that it is also effective to provide a nozzle (not shown) on the back surface of the developer carrier 1 to help suck the liquid film with a weak air flow. At this time, the toner moves through the liquid film to the electrostatic latent image area by electrophoresis, making it possible to reproduce an image with higher contrast. Furthermore, when the developer carrier 1 moves in the direction of the arrow, the liquid film 31 is pulled back by the action of surface tension, so that almost no dispersion medium remains on the electrostatic latent image carrier 6, and the liquid is removed in the subsequent process. There is no need to do so.
なお、本実施例において液体現像剤２として絶縁性また
は導電性いずれの着色インクを用いても良く、また現像
過程において液膜３が破れて静′亀力により静電潜像担
持体６へ飛しょうするようにしても同様の効果が得られ
ることはもちろんである。Note that in this embodiment, either insulating or conductive colored ink may be used as the liquid developer 2, and the liquid film 3 may be broken during the development process and splashed onto the electrostatic latent image carrier 6 due to electrostatic force. Of course, you can also get the same effect by doing this.
次に本発明の第２の実施例について説明する。Next, a second embodiment of the present invention will be described.
第２図は本発明の第２の実施例を示しており、７は現像
剤担持体１の網目中に形成される液膜３に帯電させる手
段でたとえばコロナ帯電器が用いられる。８はコロナが
静電潜像担持体６に悪影響を与えるのを防ぐための防御
板で金属でできている。９は現像位置であってこの位置
で第１図（ｂ）に示すような状態で現像が行なわれる。FIG. 2 shows a second embodiment of the present invention, and numeral 7 denotes means for charging the liquid film 3 formed in the mesh of the developer carrier 1, for example, a corona charger. A protective plate 8 is made of metal to prevent corona from adversely affecting the electrostatic latent image carrier 6. Reference numeral 9 denotes a developing position, at which development is performed in a state as shown in FIG. 1(b).
現像剤担持体１の網目中に形成されだ液膜３を帯電器７
でもって静電潜像と逆極性に帯電させると、現像位置９
において液膜３は静電潜像と液膜の帯電の二つの静電力
の相乗効果により吸引されるので、より確実に現像が行
なわれる。A charger 7 charges the saliva film 3 formed in the mesh of the developer carrier 1.
Therefore, when the electrostatic latent image is charged with the opposite polarity, the development position 9
Since the liquid film 3 is attracted by the synergistic effect of the two electrostatic forces of the electrostatic latent image and the charging of the liquid film, development is carried out more reliably.
次に本発明の第３の実施例について説明する。Next, a third embodiment of the present invention will be described.
第３図は本発明の第３の実施例を示しており、１０はバ
イアス電源、１１は極性切換スイッチであってトナーお
よび静電潜像担持体の帯電極性によってバイアス電源の
極性を切換えるためのものである。なお１本実施例にお
いては駆動ローラ５および現像剤担持体１は導電性の材
質から成ることが必要である。FIG. 3 shows a third embodiment of the present invention, in which 10 is a bias power source and 11 is a polarity switch for switching the polarity of the bias power source depending on the charging polarity of the toner and electrostatic latent image carrier. It is something. In this embodiment, it is necessary that the drive roller 5 and the developer carrier 1 be made of conductive material.
現像剤担持体１と静電潜像担持体６との間に、静電潜像
と液膜との間の電位差を拡大するようにバイアス電圧を
印加することによって液膜３は静電潜像とバイアス電圧
の二つの静電力の相乗効果により吸引されるので、より
確実に現像が行なわれる。By applying a bias voltage between the developer carrier 1 and the electrostatic latent image carrier 6 so as to increase the potential difference between the electrostatic latent image and the liquid film, the liquid film 3 becomes an electrostatic latent image. Since it is attracted by the synergistic effect of two electrostatic forces, ie, the bias voltage and the bias voltage, development is performed more reliably.
次に本発明の第４の実施例について説明する。Next, a fourth embodiment of the present invention will be described.
第４図は本発明の第４の実施例である。１２はバイアス
電圧を印加するための電極であって、電荷集中をはかる
ため、先端をとがらせてあり、現像位置９において現像
剤担持体１の背面に配置されている。１６は静電潜像担
持体６とバイアス電極１２との間のギャップである。FIG. 4 shows a fourth embodiment of the present invention. Reference numeral 12 denotes an electrode for applying a bias voltage, which has a pointed tip in order to concentrate charge, and is arranged on the back surface of the developer carrier 1 at the development position 9. 16 is a gap between the electrostatic latent image carrier 6 and the bias electrode 12.
バイアス電極１２を設けてバイアス電圧を印加すること
によって前記第３の実施例と同等の効果が得られること
は容易に理解できる。なお、本実施例においては現像剤
担持体１が絶縁性の材質から成っていても良い。It is easy to understand that by providing the bias electrode 12 and applying a bias voltage, the same effect as in the third embodiment can be obtained. In this embodiment, the developer carrier 1 may be made of an insulating material.
次に本発明の第５の実施例について説明する。Next, a fifth embodiment of the present invention will be described.
第５図は本発明の第５の実施例を示したもので、図にお
いて１３は現像剤担持体で本実施例においては網目状の
円筒体より成り、少なくともその一部が液体現像剤１４
中に浸せきされており、回転手段（図示せず）によって
静電潜像担持体６と等速度で駆動される。１５は液体現
像剤１４を入れるための液槽である。FIG. 5 shows a fifth embodiment of the present invention. In the figure, reference numeral 13 denotes a developer carrier, which in this embodiment consists of a mesh-like cylindrical body, at least a part of which carries the liquid developer 14.
The electrostatic latent image carrier 6 is driven at the same speed as the electrostatic latent image carrier 6 by a rotating means (not shown). 15 is a liquid tank for containing the liquid developer 14.
本実施例のごとく現像剤担持体１３を網目状の円筒体と
した場合においても前述した本発明の第１〜第４の実施
例がそのまま適用できることはもちろんである。It goes without saying that even in the case where the developer carrier 13 is a mesh-like cylindrical body as in this embodiment, the first to fourth embodiments of the present invention described above can be applied as they are.
なお、本実施例のごとく現像剤担持体１３を網目状の円
筒体とすることによって装置を小型軽量化できることは
もちろん、現像剤担持体１３を静電潜像担持体６の広い
範囲に位置させることができるので、特に複数個の現像
器を必要とするカラー画像の形成時には有利となる。Note that by making the developer carrier 13 a mesh-like cylindrical body as in this embodiment, the device can be made smaller and lighter, and the developer carrier 13 can be positioned over a wide range of the electrostatic latent image carrier 6. This is especially advantageous when forming color images that require a plurality of developing devices.
次に本発明にかかる静電潜像現像装置の具体例について
述べる。Next, a specific example of the electrostatic latent image developing device according to the present invention will be described.
本発明の第１の実施例において現像剤担持体１として３
０メツシユのステンレス鋼製の網、液体現像剤２として
粒径０．１〜０．５μｍのカーボンブラックの粒子を鉱
物油中に懸濁させた通常の液体現像剤、感光体として通
常のセレン感光体を用い静電潜像担持体６と現像剤担持
体１との間隔（以下現像間隔と称する）を０．１ｍｍと
して静電潜像の電位９００Ｖ、現像速度１００１！１Ｉ
ＩＩ／ｓｅｃで現像したとき良好な画像が得られた。In the first embodiment of the present invention, 3 is used as the developer carrier 1.
0 mesh stainless steel mesh, liquid developer 2, a normal liquid developer in which carbon black particles with a particle size of 0.1 to 0.5 μm are suspended in mineral oil, and a photoreceptor, a normal selenium photoreceptor. The potential of the electrostatic latent image is 900V, and the development speed is 1001!1I, using an electrostatic latent image carrier with a distance between the electrostatic latent image carrier 6 and the developer carrier 1 (hereinafter referred to as development interval) of 0.1 mm.
A good image was obtained when developed at II/sec.
本発明の第２の実施例においては前記具体例１にさらに
コロナ帯電器７を用い５〜６ｋＶを印加して液膜に帯電
させることによって現像間隔を０．２：ｍｍに広げても
良好な画像を得ることができた。In the second embodiment of the present invention, in addition to the first embodiment, a corona charger 7 is used to apply 5 to 6 kV to charge the liquid film, thereby increasing the development interval to 0.2 mm. I was able to get the image.
本、明。第。、）実施例、。おいア、よ静、潜。担持
：体６と現像剤担持体１の間に８７５ｖのバ
イアス電圧を印加することによって前記具体例２と同等
の効果が得られ、現像間隔を０．２ｍｍにしても良好な
画像を得ることができた。Book, Ming. No. ,)Example,. Hey, Shizuka, Sub. carrying
: By applying a bias voltage of 875 V between the body 6 and the developer carrier 1, the same effect as in Example 2 can be obtained, and a good image can be obtained even if the development interval is set to 0.2 mm. Ta.
本発明の第４の実施例においては現像剤担持体として３
０メツシユのポリプロピレン製の網を用い。In the fourth embodiment of the present invention, three
A polypropylene net with 0 mesh was used.
静電潜像担持体６とバイアス電極１２とのギャップ１６
を１ 、５ｍ＋ａとして３．８にνの電圧を印加するこ
とによって良好な画像が得られた。Gap 16 between electrostatic latent image carrier 6 and bias electrode 12
A good image was obtained by applying a voltage of 3.8 to ν with 1.5m+a.
本発明の第５の実施例においては現像剤担持体１３とし
て３０メツシユのステンレス鋼製の網をφ２５の円筒体
として用い、第１の実施例と同様の結果を得た。In the fifth embodiment of the present invention, a 30-mesh stainless steel net was used as a cylindrical body having a diameter of 25 mm as the developer carrier 13, and the same results as in the first embodiment were obtained.
（発明の効果）
本発明は網目状の現像剤担持体の網目中に表面張力の作
用によって液体現像剤の薄膜を形成し、これを静電力に
よって静電潜像に付着させ現像するもので、液体現像法
の長所を有しつつ、従来繁雑であった現像後の分散媒除
去が不要になるなど乾式現像法と同様な簡易な現像装置
を提供する他。(Effects of the Invention) The present invention forms a thin film of liquid developer in the mesh of a mesh-like developer carrier by the action of surface tension, and attaches this to the electrostatic latent image by electrostatic force for development. The present invention provides a simple developing device similar to that of a dry developing method, which has the advantages of a liquid developing method, but eliminates the need to remove a dispersion medium after development, which was conventionally complicated.
現像剤担持体を円筒体とすることによって装置が小型軽
量になり、かつ静電潜像担持体に対する取付位置の制限
が少なくなって複数個の現像装置を必要とするカラー画
像の形成に有利になるなどその実用的効果は大きい。By making the developer carrier a cylindrical body, the device becomes smaller and lighter, and there are fewer restrictions on the mounting position with respect to the electrostatic latent image carrier, which is advantageous for forming color images that require multiple developing devices. Its practical effects are significant.
第１図は本発明の第１の実施例における静電潜像現像装
置の断面図、第２図は本発明の第２の実施例、第３図は
同第３の実施例、第４図は同第４の実施例、第５図は同
第５の実施例をそれぞれ示す断面図である。第６図およ
び第７図は液体現像剤を用いた静電潜像現像装置の従来
の例を示す図である。
１．１３・・・現像剤担持体、 ２，１４・・・液体現
像剤、３・・・液膜、 ５ ・・・駆動ローラ、 ６゛
°。
静電潜像担持体、 ７ ・・・帯電器、１０・・・バイ
アス電源、１２・・・バイアス電極。
特許出願人 松下電器産業株式会社
′とヲ
第１図
（ｂ）
第２図
Ｓ４図
第５図
第６図
第７図FIG. 1 is a sectional view of an electrostatic latent image developing device according to a first embodiment of the present invention, FIG. 2 is a second embodiment of the present invention, FIG. 3 is a third embodiment of the same, and FIG. 5 is a sectional view showing the fourth embodiment, and FIG. 5 is a sectional view showing the fifth embodiment. FIGS. 6 and 7 are diagrams showing conventional examples of electrostatic latent image developing devices using liquid developer. 1.13...Developer carrier, 2,14...Liquid developer, 3...Liquid film, 5...Drive roller, 6゛°. Electrostatic latent image carrier, 7... Charger, 10... Bias power supply, 12... Bias electrode. Patent applicant: Matsushita Electric Industrial Co., Ltd. Fig. 1 (b) Fig. 2 S4 Fig. 5 Fig. 6 Fig. 7
Claims (6)
膜（以下単に液膜と称する）を形成し、液膜を静電潜像
担持体に近接させ、静電力により液膜を静電潜像に付着
させる静電潜像現像方法。(1) Form a thin film of liquid developer (hereinafter simply referred to as a liquid film) in the mesh of a mesh-like developer carrier, bring the liquid film close to the electrostatic latent image carrier, and use electrostatic force to spread the liquid developer. An electrostatic latent image development method that adheres to an electrostatic latent image.
液体現像中に浸せきされた網目状の現像剤担持体を有し
、網目中に形成される液膜が静電力によって静電潜像に
付着することを特徴とする静電潜像現像装置。(2) It has a mesh-like developer carrier that is close to the electrostatic latent image carrier and at least a part of which is immersed in liquid development, and the liquid film formed in the mesh is electrostatically generated by electrostatic force. An electrostatic latent image developing device characterized by adhering to a latent image.
ることを特徴とする特許請求の範囲第（２）項記載の静
電潜像現像装置。(3) The electrostatic latent image developing device according to claim (2), further comprising means for charging the liquid film formed in the mesh.
圧を印加する手段を有することを特徴とする特許請求の
範囲第（２）項記載の静電潜像現像装置。(4) The electrostatic latent image developing device according to claim (2), further comprising means for applying a bias voltage between the electrostatic latent image carrier and the developer carrier.
の背面にバイアス電圧印加用電極を設けたことを特徴と
する特許請求の範囲第（２）項記載の静電潜像現像装置
。(5) An electrostatic latent image according to claim (2), characterized in that an electrode for applying a bias voltage is provided on the back surface of the developing section of the developer carrier facing the electrostatic latent image carrier. Developing device.
とする特許請求の範囲第（２）項記載の静電潜像現像装
置。(6) The electrostatic latent image developing device according to claim (2), wherein the developer carrier is a mesh-like cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18568785A JPS6247075A (en) | 1985-08-26 | 1985-08-26 | Method and device for developing electrostatic latent image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18568785A JPS6247075A (en) | 1985-08-26 | 1985-08-26 | Method and device for developing electrostatic latent image |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6247075A true JPS6247075A (en) | 1987-02-28 |
Family
ID=16175107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18568785A Pending JPS6247075A (en) | 1985-08-26 | 1985-08-26 | Method and device for developing electrostatic latent image |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6247075A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713437A (en) * | 1993-06-28 | 1995-01-17 | Tohoku Ricoh Co Ltd | Electrostatic latent image developing device |
| EP1779935A2 (en) | 2005-11-01 | 2007-05-02 | Voith Patent GmbH | Coating apparatus and method |
| US7754289B2 (en) | 2004-07-14 | 2010-07-13 | Nippon Steel Corporation | Method for coating a multilayer film and product having a multilayer coated film |
-
1985
- 1985-08-26 JP JP18568785A patent/JPS6247075A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0713437A (en) * | 1993-06-28 | 1995-01-17 | Tohoku Ricoh Co Ltd | Electrostatic latent image developing device |
| US7754289B2 (en) | 2004-07-14 | 2010-07-13 | Nippon Steel Corporation | Method for coating a multilayer film and product having a multilayer coated film |
| US8147950B2 (en) | 2004-07-14 | 2012-04-03 | Nippon Steel Corporation | Method for coating a multilayer film and product having a multilayer coated film |
| EP1779935A2 (en) | 2005-11-01 | 2007-05-02 | Voith Patent GmbH | Coating apparatus and method |
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