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JPS59181370A - Recording device - Google Patents

Recording device

Info

Publication number
JPS59181370A
JPS59181370A JP58056035A JP5603583A JPS59181370A JP S59181370 A JPS59181370 A JP S59181370A JP 58056035 A JP58056035 A JP 58056035A JP 5603583 A JP5603583 A JP 5603583A JP S59181370 A JPS59181370 A JP S59181370A
Authority
JP
Japan
Prior art keywords
toner
electrode
recording
electric field
voltage
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
Application number
JP58056035A
Other languages
Japanese (ja)
Inventor
Masahiro Hosoya
雅弘 細矢
Tsutomu Uehara
上原 勤
Takeshi Nozaki
武史 野崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP58056035A priority Critical patent/JPS59181370A/en
Priority to US06/594,011 priority patent/US4568955A/en
Priority to DE19843411948 priority patent/DE3411948A1/en
Publication of JPS59181370A publication Critical patent/JPS59181370A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/385Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
    • B41J2/41Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for electrostatic printing
    • B41J2/415Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for electrostatic printing by passing charged particles through a hole or a slit
    • B41J2/4155Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for electrostatic printing by passing charged particles through a hole or a slit for direct electrostatic printing [DEP]
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/22Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/34Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner
    • G03G15/344Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array
    • G03G15/346Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the powder image is formed directly on the recording material, e.g. by using a liquid toner by selectively transferring the powder to the recording medium, e.g. by using a LED array by modulating the powder through holes or a slit
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00Apparatus for electrophotographic processes
    • G03G2215/06Developing structures, details
    • G03G2215/0634Developing device
    • G03G2215/0636Specific type of dry developer device
    • G03G2215/0651Electrodes in donor member surface
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2217/00Details of electrographic processes using patterns other than charge patterns
    • G03G2217/0008Process where toner image is produced by controlling which part of the toner should move to the image- carrying member
    • G03G2217/0025Process where toner image is produced by controlling which part of the toner should move to the image- carrying member where the toner starts moving from behind the electrode array, e.g. a mask of holes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To form an image of a high quality by a low recording voltage even in case when a gap between a recording body and a developer carrying body is large, by a simple constitution, by controlling a flying to a recording body of a developer of a carrying body carried by plural electrodes, by a control electrode. CONSTITUTION:Electrodes 181, 182... provided on a cylindrical roller 17 of a developer carrying body are scanned successively, bias voltage is applied, and a toner 24 of a developer is carried on the roller 17. This toner 24 floats and becomes like fog between a control electrode 26 provided between the roller 17 and a recording body, and the roller 17 by feeding electrodes 201, 202... to which DC voltage and AC voltage are applied. When thickness of an insulating layer 27 of this electrode 26 is made thin, an electric field generated in a passing- hole 30 becomes intense, and even if a gap between the roller 17 and the electrode 26 is large, the toner 24 passes through the hole 30 and flies in a good state. Even if a gap between the electrode 26 and the recording body 13 is large, the same result is obtained and an image of a high quality is formed by a low recording voltage, by a good flying of a toner, even when a gap between the recording body and the developer carrying body is large, by a simple constitution.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は記録体上に画像信号にもとづいてトナーを付与
する記録装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a recording apparatus that applies toner onto a recording medium based on an image signal.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来、記録体上の一方の面で信号電圧を印加しながら他
方の面で粉体現像または液体現像を行なうコントログラ
フイーと呼ばれる方法が知られている。この方法は、記
録体の一方の面に記録電極を接触させ、この記録電極へ
の電圧印加と同時に反対側の面から粉体現像もしくは液
体現像を行なうものであシ、信号電圧印加と現像が同時
に行なわれるのでプロセスが簡単になる。また、可視像
形成面が記録電極接触面と反対側であるため、同一記録
体上で現像をくシ返す力2−記録にも適している。
Conventionally, a method called contrastography is known in which a signal voltage is applied to one surface of a recording medium while powder development or liquid development is performed on the other surface. In this method, a recording electrode is brought into contact with one side of the recording medium, and at the same time as voltage is applied to the recording electrode, powder development or liquid development is performed from the opposite side. This simplifies the process since they are done simultaneously. In addition, since the visible image forming surface is on the opposite side to the recording electrode contact surface, it is suitable for force 2-recording to repel development on the same recording medium.

しかしながら、粉体現像剤を利用した従来の記録装置は
、第1図に示すように、担持体1の表面に磁力等を利用
して現像剤2・・・の層を形成し、これに記録体3およ
び記録電極4を近接させて現像を行なうものであるため
、次のような欠点を有している。
However, as shown in FIG. 1, conventional recording devices using powder developer form a layer of developer 2 on the surface of a carrier 1 using magnetic force or the like, and record data on this layer. Since development is carried out with the body 3 and the recording electrode 4 in close proximity, it has the following drawbacks.

すなわち、粉体現像剤2・・・は粉体相互の摩擦帯電に
よるクーロン力や、ファンデルワールス力等の力によっ
て自己凝集しておシ、また同様の力によって担持体1表
面への束縛力を受けている。また、現像剤2として磁性
トナーを利用し、磁力によってこれを担持体1表面に保
持する場合には、現像剤2にはさらに磁力による束縛力
が作用している。したがって、記録電圧によって現像剤
2を記録体表面に転移させるためには記録電極4に高電
圧を印加しなければならず、また、電界を強めるために
記録体3と現像剤担持体1との間隙をきわめて小さく設
定しなければならないので機械精度を良くする必要があ
る。また、低い記録電圧によって現像剤像を得るために
記録体3を現像剤2・・・の層に接触させる方法も知ら
れているが、この場合には非画像部への現像剤2・・・
の付着、すガわち、かぶシを除去することが困難である
。さらに、記録電極4と現像剤担持体1の間における放
電破壊を防止するため記録体3として高絶縁性の特殊紙
を使用しなければならない。
That is, the powder developer 2... self-agglomerates due to forces such as Coulomb force and Van der Waals force caused by frictional electrification between the powder particles, and also binds to the surface of the carrier 1 due to similar forces. Is receiving. Furthermore, when magnetic toner is used as the developer 2 and is held on the surface of the carrier 1 by magnetic force, a binding force due to the magnetic force is further applied to the developer 2. Therefore, in order to transfer the developer 2 to the surface of the recording material using the recording voltage, a high voltage must be applied to the recording electrode 4, and in order to strengthen the electric field, the connection between the recording material 3 and the developer carrier 1 must be applied. Since the gap must be set extremely small, mechanical precision must be improved. A method is also known in which the recording medium 3 is brought into contact with a layer of developer 2 to obtain a developer image using a low recording voltage, but in this case, the developer 2 is applied to the non-image area.・
It is difficult to remove the adhesion, slag, and turnips. Furthermore, in order to prevent discharge damage between the recording electrode 4 and the developer carrier 1, a highly insulating special paper must be used as the recording medium 3.

一方、液体現像剤を使用する装置の場合にも上記同様の
問題がある。すなわち、液体視像剤中のトナー粒子はそ
の移動度が小さいため、高濃度の可視像を得るためには
高電圧を必要とする。また、現像液が記録体中に浸透し
てかぶシを大きくするのを防止するため、記録体の少く
とも一方の面に現像液浸透防止の処理を必要とする。
On the other hand, devices using liquid developers also have the same problems as described above. That is, since the toner particles in the liquid visual agent have low mobility, a high voltage is required to obtain a high-density visible image. Furthermore, in order to prevent the developer from penetrating into the recording medium and increasing the fog, at least one surface of the recording medium must be treated to prevent the developer from penetrating.

〔発明の目的〕[Purpose of the invention]

本発明は上記事情にもとづいてなされたもので、その目
的とするところは、記録体と現像剤担持体表面との間隙
を大きく設定した場合でも、低い記録電圧で高品質の可
視像を得ることができ、以て茜度な機械精度を必要とし
ないばかシか、無加工もしくはほとんど加工していない
普通紙をも用いることができる装置を提供することにあ
る。
The present invention has been made based on the above circumstances, and its purpose is to obtain a high quality visible image with a low recording voltage even when the gap between the recording medium and the surface of the developer carrier is set large. The object of the present invention is to provide an apparatus which can use plain paper, which does not require extreme mechanical precision, or which is unprocessed or hardly processed.

〔発明の概要〕[Summary of the invention]

本発明は、記録体に対向して設けられ、現像剤を担持す
る担持体と、との担持体に配設された複数の電極と、こ
れら電極間に時間的に変化する電界を形成せしめる電界
形成手段と、上記記録体と上記相持体の間に配置され、
上記担持体から上記記録体への現像剤の飛翔を制御する
制御電極とを具備したことを特徴とするものである。
The present invention relates to a carrier provided facing a recording medium and carrying a developer, a plurality of electrodes disposed on the carrier, and an electric field that forms a temporally varying electric field between these electrodes. a forming means, disposed between the recording body and the supporting body,
The present invention is characterized in that it includes a control electrode that controls the flight of developer from the carrier to the recording medium.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の第1の実施例を第2図〜第6図を参照し
ながら説明する。第2図中11は電源12によシたとえ
ば正極性の電圧が印加される背面電体であシ、この先端
にはたとえばロール状に巻回された普通紙等の記録、体
13が繰出ローラ14から繰出され、搬送ローラ対15
゜16によって図中矢印方向へ搬送されることによシ摺
擦するようになっている。
A first embodiment of the present invention will be described below with reference to FIGS. 2 to 6. In FIG. 2, reference numeral 11 denotes a backside electric body to which a positive voltage, for example, is applied to the power supply 12. At the tip of this body is a record of, for example, plain paper wound in a roll, and a body 13 is a feed roller. 14 and conveyor roller pair 15
16 in the direction of the arrow in the figure to cause rubbing.

また、この背面電極11の先端には現像剤としての筒状
ローラ17かたとえば3m+aの間隙を隔てて対向配置
され、矢印方向に回転するようになっている。この筒状
ロー217は、たとえば外径40πnの中空のアルミニ
ウムローラの表面および端面にポリイミド樹脂薄膜をコ
ーティングしてなるものであシ、その表面には互いに電
気的に絶縁された複数の銅製線状電極181〜18□6
が軸方向に沿ってかつ互いに平行に配設されている。こ
れら線状電極181〜1816はたとえば筒状ローラ1
7の外周面のポリイミド樹脂膜に銅薄膜を真空蒸着法に
よシ蒸着し、これを選択的にエツチングすることによっ
て形成され、それぞれ幅0.5 mm S厚さ5μmで
、電極間距離が0.2 mmとなっている。また、これ
ら線状電極18□〜1816端部からは導線191〜1
9.6が筒状ローラ17の中心刃1ちへ延出している。
Further, a cylindrical roller 17 serving as a developer is disposed opposite to the tip of the back electrode 11 with a gap of, for example, 3 m+a therebetween, and is configured to rotate in the direction of the arrow. This cylindrical row 217 is formed by coating the surface and end surface of a hollow aluminum roller with an outer diameter of 40πn with a polyimide resin thin film, for example. Electrode 181-18□6
are arranged along the axial direction and parallel to each other. These linear electrodes 181 to 1816 are connected to the cylindrical roller 1, for example.
A thin copper film was deposited on the polyimide resin film on the outer circumferential surface of No. 7 using a vacuum evaporation method, and this was selectively etched. .2 mm. Further, from the ends of these linear electrodes 18□ to 1816, conductive wires 191 to 1
9.6 extends to the center edge 1 of the cylindrical roller 17.

なお、これら導線19.〜19□6先端には図示しない
ブラシが取付けられている。
In addition, these conducting wires 19. ~19□6 A brush (not shown) is attached to the tip.

また、上記筒状ローラ17内部には、背面電極11と対
向する位置に湾曲した5つの給電用電極20.〜205
が上記筒状ロー217の内周面に一定の間隔でそれぞれ
固定されている。
Further, inside the cylindrical roller 17, there are five power feeding electrodes 20 curved at positions facing the back electrode 11. ~205
are fixed to the inner peripheral surface of the cylindrical row 217 at regular intervals.

これら給電用電極201〜20.のうち−個おきの電極
201  r 203  、20Bは直流電源21に、
残シの電極” 2 1204は交流電源22にそれぞれ
接続されている。壕だ、これら給電用電極にはこれら給
電電極の領域に移動してきた線状電極の導線19.〜1
9,6が接触しているようになりている。、5 また、23はホッパーセあシ、このホンパー23から供
給される現像剤としてのトナー24は絶縁性で、その成
分はスチレン樹脂、アクリル樹脂、エポキシ樹脂、ポリ
エステル樹脂、マレイン樹脂、或いはその共重合体等の
樹脂中にカーボンブラック、顔料等の荷電制御剤を所望
の割合で配合した一般的な粒子状のものである。
These power supply electrodes 201 to 20. Among them, every other electrode 201 r 203 , 20B is connected to the DC power supply 21,
The remaining electrodes 2 1204 are connected to the AC power supply 22 respectively.These power supply electrodes are connected to the wires 19. to 1 of the linear electrodes that have moved into the area of these power supply electrodes.
9 and 6 are now touching. , 5 Further, 23 is a hopper sheet, and the toner 24 as a developer supplied from this hopper 23 is insulating, and its components are styrene resin, acrylic resin, epoxy resin, polyester resin, maleic resin, or a copolymer thereof. It is a general particulate material in which charge control agents such as carbon black and pigments are blended in desired proportions in resin such as coalescence.

また、上記ホッパー23の上記担持体ローラ設けられて
いる。
Further, the carrier roller of the hopper 23 is provided.

さらに、上記背面電極11と筒状ローラ17との間には
トナー24の飛翔を制御する制御電極26が設けられ、
これは背面電極1ノの先端との距離がたとえば1 ’1
m1Lとなるように設定されている。この制御電極26
は第3図に示すように絶縁層27をはさんでたとえば上
下に二層の電極28・1,29を設けてなるものであり
、多数のトナー通過孔30・を有しているとともに電極
28・に信号源31よ多信号電圧が印加されるようにな
っている。そして、絶縁層27の厚さが300μm、絶
縁層27をはさむ電極28 、29の厚さが20μmで
あシ、レーザビームによって直径150μmのトナー通
過孔をピッチ300μmで一列に配列加工したものであ
る。なお、絶縁N27はポリエステル、電極2B 、 
、29は銅よシなりている。
Furthermore, a control electrode 26 for controlling the flight of the toner 24 is provided between the back electrode 11 and the cylindrical roller 17,
This means that the distance from the tip of back electrode 1 is, for example, 1'1.
It is set to be m1L. This control electrode 26
As shown in FIG. 3, for example, two layers of electrodes 28, 1 and 29 are provided on the upper and lower sides with an insulating layer 27 in between, and the electrode 28 has a large number of toner passage holes 30. A multi-signal voltage is applied from the signal source 31 to the signal source 31. The thickness of the insulating layer 27 is 300 μm, the thickness of the electrodes 28 and 29 sandwiching the insulating layer 27 is 20 μm, and toner passing holes with a diameter of 150 μm are arranged in a line at a pitch of 300 μm using a laser beam. . In addition, insulation N27 is polyester, electrode 2B,
, 29 is made of copper.

しかして、筒状ローラ17を矢印方向に回転すると、ト
ナー24は筒状ローラ17と弾性ブレード25とに接触
し摩擦されて負極性に帯電する。こうした筒状四−ラ1
7の回転とともに、たとえば、線状電極181〜18□
6のうち制御電極26に対向する5本のたとえば線状電
極18、〜18.に回転しない給電用電極20゜〜20
6を介して交流電圧(例えば200V  。
When the cylindrical roller 17 is rotated in the direction of the arrow, the toner 24 comes into contact with the cylindrical roller 17 and the elastic blade 25 and is negatively charged due to friction. Such a cylindrical four-ra 1
7, for example, the linear electrodes 181 to 18□
6, for example, five linear electrodes 18, - 18.6 facing the control electrode 26. Power supply electrode that does not rotate 20° to 20°
6 through an alternating voltage (e.g. 200V).

−p 1 kHz )および直流電圧(たとえばOV)が印加
されると、線状電極18□〜1B、間に交流電界が発生
し、トナー24・・・は振動を行ないながら筒状ローラ
17の表面付近に浮遊、スモーク化する。
- p 1 kHz) and a DC voltage (for example, OV) are applied, an AC electric field is generated between the linear electrodes 18□ to 1B, and the toner 24... vibrates on the surface of the cylindrical roller 17. It floats nearby and turns into smoke.

ここで、トナー24・・・が浮遊、スモーク化する原理
を第4図にもとづいて説明する。今、たとえば、交流電
源22から電極1 &’1  、18’l +18’5
  r 18’7に交番電圧(VA)が印加され、直流
電源21から電極1 B’2  + 18’4  * 
18’6に直流電圧(VD)が印加されると、交番電圧
(VA)が印加されているたとえは電&18′□ と直
流電圧(VD)が印加されているたとえば電極18′2
0間に交番電界が発生する。この電界中に筒竺ローラ1
7表面との摩擦帯電によって、たとえば負極性に帯電し
たトナー24・・・が存在すると、このトナー24・・
・にはvA>VDの瞬間、電極18′、から電! 1 
B’xへ向う力が、VA〈vDの瞬間、電極18′、か
ら電極18′2へ向う力が作用する。したがって、トナ
ー24・・・鉱隣シ合う電極間に生じる電気力線に沿っ
て振動運動を行ないながら筒状ロー217の表面付近の
空間を浮遊することになる。
Here, the principle by which the toner 24... floats and becomes smoked will be explained based on FIG. 4. Now, for example, from the AC power supply 22, electrodes 1 &'1, 18'l +18'5
An alternating voltage (VA) is applied to r 18'7, and electrode 1 B'2 + 18'4 *
When a DC voltage (VD) is applied to the electrode 18'6, an alternating voltage (VA) is applied to the electrode 18'□, and a DC voltage (VD) is applied to the electrode 18'2, for example.
An alternating electric field is generated between 0 and 0. In this electric field, the Tsutsujiku roller 1
If there is toner 24 that is negatively charged due to frictional charging with the surface of 7, this toner 24...
・At the moment when vA>VD, a voltage is generated from electrode 18'! 1
At the moment VA<vD, a force toward B'x acts from the electrode 18' toward the electrode 18'2. Therefore, the toner 24 floats in the space near the surface of the cylindrical row 217 while vibrating along the lines of electric force generated between adjacent electrodes.

ついで、この状態で背面電極11に正極性の定電圧を印
加するとともに、制御電極26の電$i28に正の信号
電圧(たとえば100V)を印加すると、制御室&26
のトナー通過孔30の近傍に浮遊しているトナー24−
・・はトナー通過孔30を通過し、記録体13の表面に
引き寄せられて可視像の形JFAがなされる。
Next, in this state, when a positive constant voltage is applied to the back electrode 11 and a positive signal voltage (for example, 100 V) is applied to the voltage $i28 of the control electrode 26, the control room &26
Toner 24- floating near the toner passage hole 30 of
... passes through the toner passage hole 30 and is attracted to the surface of the recording medium 13, forming a visible image JFA.

ここで、この原理を説明する。今、第5図に示すように
、電源31′によp電極28に正極性の電圧を印加し、
電極29を接地すると、トナ−通過孔30には上から下
へ向う電気力線32が発生する。また、背面電極1ノと
筒状ローラ17の間には上から下へ向う図示しない電気
力線が存在する。したがって、制御電極26のトナー通
過孔3Q近傍に存在するトナー24は上述した電気力線
によって上方に向う力を受け、トナー通過孔30を通過
して記録体13に達しこれに付着する。一方、第6図の
ように、電源31′によって電極28に負極性の電圧を
印加すると、トナー通過孔30には下から上へ向う電気
力線32が生起し、負極性に帯電したトナー24は通過
を阻止され、記録体13には到達できない。このように
、制御電極26に信号電圧を印加することによってトナ
ー24の流れを制御し、記録体13の表面にトナー24
をii!li像信号にもとづいて付着させることによっ
て可視像を形成することができる。
Here, this principle will be explained. Now, as shown in FIG. 5, a positive voltage is applied to the p-electrode 28 by the power source 31',
When the electrode 29 is grounded, electric lines of force 32 are generated in the toner passage hole 30 from above to below. Further, there are electric lines of force (not shown) extending from top to bottom between the back electrode 1 and the cylindrical roller 17. Therefore, the toner 24 existing near the toner passage hole 3Q of the control electrode 26 receives an upward force from the above-mentioned electric lines of force, passes through the toner passage hole 30, reaches the recording medium 13, and adheres thereto. On the other hand, as shown in FIG. 6, when a negative voltage is applied to the electrode 28 by the power supply 31', electric lines of force 32 are generated in the toner passage hole 30 from the bottom to the top, and the negatively charged toner 24 is generated in the toner passage hole 30. is blocked from passing and cannot reach the recording medium 13. In this way, by applying a signal voltage to the control electrode 26, the flow of the toner 24 is controlled, and the toner 24 is applied to the surface of the recording medium 13.
ii! A visible image can be formed by depositing based on the li image signal.

なお、可視像の形成に寄与しないトナー24は、筒状ロ
ー217の回転と共に交流電界領域を通過し、再び筒状
ローラ17の底面に付着してホッノぞ−23にもどる。
The toner 24 that does not contribute to the formation of a visible image passes through the alternating current electric field region as the cylindrical roller 217 rotates, adheres to the bottom surface of the cylindrical roller 17 again, and returns to the cylindrical roller 23.

以上の構成によれば、以下に列挙する種々の効果が得ら
れる。
According to the above configuration, various effects listed below can be obtained.

■ 可視像形成に際し、トナー24は筒状ロー217表
面に設けられた電極181〜18□6間での往復運動に
よりて予め筒状ロー217と制御電極24の間に浮遊、
スモーク化しているため、トナー24・・・同志の自己
凝集力や、筒状ロー217への束縛力は皆無もしくは非
常に小さく、背面電極及び制御電極に印加される電圧が
低い場合にもトナー24は記録体へ向けて移動し、良好
な可視像の形成が行なわれ得る。また、制御電極26の
絶縁層27の犀さを薄くすることによってトナー通過孔
30に生ずる電界を強くすることができるため、制御電
極26に印加する電圧は、従来方法の記録電圧に印加す
る電圧よシもはるかに小さく設定することができる。
(2) When forming a visible image, the toner 24 is suspended in advance between the cylindrical row 217 and the control electrode 24 due to reciprocating motion between the electrodes 181 to 18□6 provided on the surface of the cylindrical row 217;
Since the toner 24 is smoked, the self-cohesive force of the toner 24 and the binding force to the cylindrical row 217 are non-existent or very small, and even when the voltage applied to the back electrode and the control electrode is low, the toner 24 moves toward the recording medium, and a good visible image can be formed. Furthermore, by reducing the thickness of the insulating layer 27 of the control electrode 26, the electric field generated in the toner passage hole 30 can be strengthened. Yoshi can also be set much smaller.

■ 上記■と同じ理由から、記録体13と筒状ローラ1
7表面の間隙を大きく設定した場合にも、低い記録電圧
で高品質の可視像を得ることができ、高度な機械精度を
必要としないため、上記間隙を高精度に設定するだめの
装置設計や組立技術が不要となシ、装置コストの低減や
メンテナンスの簡素化を達成できる〇 ■ 信号電圧を低く、上記間隙を大きく設定することが
できるため、担持体13、制御電極26、背面電極1ノ
の三者の間の放電破壊を防止することができ、したがっ
て記録体13として無加工もしくはelとんど加工して
いない普通紙を用いることができる。
■ For the same reason as above ■, the recording body 13 and the cylindrical roller 1
7 Even when the gap between the surfaces is set large, a high-quality visible image can be obtained with a low recording voltage, and a high level of mechanical precision is not required. No assembly technology is required, reducing equipment costs and simplifying maintenance〇■ Since the signal voltage can be set low and the gap described above can be set large, the carrier 13, control electrode 26, back electrode 1 Therefore, the recording medium 13 can be plain paper that is unprocessed or hardly processed.

■ スモーク化することによってトナー24・・・の自
己凝集を破壊することができるため、トナー24・・・
は1次粒子となって記録体13に付着し、したがって緻
密な高品質の可視像が得られる。
■ The self-agglomeration of the toner 24 can be destroyed by turning it into smoke, so the toner 24...
The particles become primary particles and adhere to the recording medium 13, so that a dense, high-quality visible image can be obtained.

■ ■と同じ理由によシ、トナー通過孔3Qが凝集トナ
ーによって塞がれることがない。
(2) For the same reason as (2), the toner passage hole 3Q is not blocked by aggregated toner.

次に本発明の第2の実施例を第7図〜第9図にもとづい
て説明する。なお、第7図〜第9図中、上記第1図〜第
6図に示すものと同様な構−酸部分は同一符号を付して
説明を省略する。
Next, a second embodiment of the present invention will be described based on FIGS. 7 to 9. In FIGS. 7 to 9, structural acid parts similar to those shown in FIGS. 1 to 6 above are denoted by the same reference numerals, and the explanation thereof will be omitted.

すなわち、背面電極ノーの下方には開口部33および傾
斜底面34紫有した容器35が設けられ、この容器35
の内部にはトナー24・・・、上記背面電極ノーの先端
に制御電極26を介して対向する状態に固定された現像
剤担持体としての担持板36およびトナー24川を攪拌
する攪拌子37が配置されている。上記担持板36は、
第8図にも示すように、水平板部38の両端から下方へ
短板部39と長板部4oを延出した形状の絶縁体よシな
シ、上記傾斜底面34の傾斜下端側に長板部4θの下端
がトナー24・・・中に浸漬する状態で、その傾胴上端
側に短板部39の下端がトナー24・・・中に浸漬しな
い状態でそれぞれ位置されている。
That is, a container 35 having an opening 33 and an inclined bottom surface 34 is provided below the back electrode no.
Inside the toner 24..., a carrier plate 36 as a developer carrier fixed to the tip of the back electrode 24 opposite to each other via a control electrode 26, and a stirrer 37 for stirring the toner 24. It is located. The support plate 36 is
As shown in FIG. 8, the insulator has a shape in which a short plate part 39 and a long plate part 4o extend downward from both ends of the horizontal plate part 38, and a long plate part 39 and a long plate part 4o extend downward from both ends of the horizontal plate part 38. The lower ends of the plate portions 4θ are immersed in the toner 24, and the lower ends of the short plate portions 39 are positioned on the upper end side of the tilting body without being immersed in the toner 24.

また、担持板38の表面には線状電極41゜〜41nが
幅方向に沿って、かつ互いに平行に設けられている。こ
れら電&4ノ、〜41 には第9図に模擬的に示すよう
に、父流電源42゜43.44によって互いに位相の異
なる三相以上の交流電圧が印加されるようになっている
Further, on the surface of the support plate 38, linear electrodes 41° to 41n are provided along the width direction and parallel to each other. As shown schematically in FIG. 9, alternating current voltages of three or more phases having mutually different phases are applied to these voltages &4, -41 by a father current power source 42,43,44.

すなわち、これら交流電源42,43.44はまたとえ
ば位相が120度ずつ異なる三相交流電源であシ、電源
42が線状電極・・・、 4 Jk、 。
That is, these AC power sources 42, 43, and 44 are three-phase AC power sources whose phases differ by, for example, 120 degrees, and the power source 42 is a linear electrode..., 4 Jk,.

41に、41に+3・・・に、電源43が線状電極・・
・。
41, 41 +3..., the power source 43 is a linear electrode...
・.

” k−2” ’に+1 ’・・・に、電源39が線状
電極・・・。
"k-2"'+1'..., the power supply 39 is a linear electrode...

41に−1,47に+2.・・・にそれぞれ接続されて
いる。
-1 to 41, +2 to 47. ... are connected to each other.

そして、交流電圧が印加されると、担持板31の表面に
は長板部40から水平板部38、短板部39へと進行す
る進行波型の交流電界が発生するようになっている。
When an alternating current voltage is applied, a traveling wave type alternating current electric field is generated on the surface of the support plate 31, which travels from the long plate part 40 to the horizontal plate part 38 and the short plate part 39.

しかして、担持板41の長板部40の下端側表面には常
にトナー24・・・が存在しておシ、このトナー24・
・・は担持板31の表面との摩擦によりて負に帯電して
いる。そして、電極411〜41nに電圧が印加され、
進行波型の交流電界が生せしめられると、トナー24・
・・が線状電極41□〜41 間で振動、浮遊かつスモ
ーク化しつり、担持板36の長板部40傾斜面を上方へ
達し、開口部33を介して記録体1“3に供給されて静
電潜像の現像が行なわれる。現像に寄与しないトナー2
4・・・は、さらに搬送され短板部39において下方へ
落下し、容器35の傾斜底面34に沿って重力の作用で
滑降して、担持板36の長板部40下端側へ戻る。
Therefore, the toner 24... is always present on the lower end surface of the long plate portion 40 of the carrier plate 41, and this toner 24...
... are negatively charged due to friction with the surface of the support plate 31. Then, a voltage is applied to the electrodes 411 to 41n,
When a traveling wave type alternating current electric field is generated, the toner 24.
... vibrates, floats and smokes between the linear electrodes 41 □ to 41 , reaches upward through the inclined surface of the long plate portion 40 of the carrier plate 36 , and is supplied to the recording medium 1 " 3 through the opening 33 . Development of the electrostatic latent image is performed. Toner 2 that does not contribute to development
4 are further conveyed and fall downward at the short plate part 39, slide down by the action of gravity along the inclined bottom surface 34 of the container 35, and return to the lower end side of the long plate part 40 of the carrier plate 36.

以上の構成によれは、上記第1の実施例の有する効果に
トナー搬送機能が付加され、担持板36として回転体駆
動装置を使用する必要がなくなるため、装置の簡素化、
小型化が可能となるO なお、上記第2の実施例では、第10図に示すように給
電してもよい。すなわち、線状電極41、〜41に〜4
1nのうち例えば一本おきの線状電極・・・*’ 41
に−2m 41k141に+2 、・・・には交流電源
45によシ交流電圧(例えは200■p−p)が線状電
極・・・141に−5y 41に−1* 4 ik+、
a41に+5 m・・・には直流電源46によシ直流電
圧が印加さ九るようになってい゛る。また、直流電源4
6と線状電極…、 41に−5+ 41に−1,41に
+1s4−1に+5.・・・との間には抵抗・・・、 
47に一、 、 47に’471(+1・・・が介装さ
れてお)、これらの線状電極41、〜41nに印加され
る直流電圧値に勾配を生ぜしめるようになっている。以
上のMJjlcによれば、隣シ合う線状電惟間には交流
電界と直流電界がM畳された電界が生じておシ、担持板
36の表面に存在する負帯電トナーは交流電界によって
振動、浮遊、スモーク化しつつ、血流電界によって一定
方向へ(この場合左から右へ)・搬送される。したがっ
て、このような給電方法でも上記第2の実施例と同等の
効果を得ることができる。
According to the above configuration, a toner conveying function is added to the effect of the first embodiment, and there is no need to use a rotating body driving device as the carrier plate 36, so that the device can be simplified,
In the second embodiment, power may be supplied as shown in FIG. 10. That is, the linear electrodes 41, 41 and 4
For example, every other linear electrode in 1n...*' 41
-2 m 41k +2 to 141, ..., an AC voltage (for example, 200p-p) is applied to the linear electrode by the AC power supply 45, -5y to 141, -1*4 ik+ to 41,
A DC voltage is applied from a DC power supply 46 to +5 m . . . a41. Also, DC power supply 4
6 and the linear electrode..., -5+ to 41, -1 to 41, +1 to 41, +5 to 4-1. There is resistance between...
47 to 1, 47 to '471 (with +1, . . . interposed) to produce a gradient in the DC voltage value applied to these linear electrodes 41, to 41n. According to the above MJjlc, an electric field in which an AC electric field and a DC electric field are multiplied by M is generated between adjacent linear electric fields, and the negatively charged toner present on the surface of the carrier plate 36 is vibrated by the AC electric field. , while floating and turning into smoke, it is transported in a certain direction (from left to right in this case) by the blood flow electric field. Therefore, even with such a power supply method, the same effects as in the second embodiment can be obtained.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、記録体に対向して
設けられ、現像剤を担持する担持体と、との担持体に配
設された複数の電極と、これら電極間に時間的に変化す
る電界を形成せしめる電界形成手段と、上記記録体と上
記担持体の間に配置され、上記担持体から記録体への視
像剤の飛翔を制御する制御電極とを具備したから、記録
体と現像剤担持体表面との間隙を大きく設定した場合で
も、低い記録電圧で高品質の可視像を得ることができ、
以て高度な機械精度を必要としないはかシか、無加工も
しくはほとんど加工していない普通紙をも用いることが
できる等優れた幼果を奏する。
As explained above, according to the present invention, there is provided a carrier which is provided opposite to a recording medium and carries a developer, and a plurality of electrodes which are disposed on the carrier, and a temporal gap between these electrodes. The recording body is equipped with an electric field forming means for forming a changing electric field, and a control electrode disposed between the recording body and the carrier to control the flight of the visual agent from the carrier to the recording body. Even when the gap between the developer carrier and the surface of the developer carrier is set large, high-quality visible images can be obtained with a low recording voltage.
Therefore, it produces excellent young fruits, such as the ability to use paper that does not require a high degree of mechanical precision, or even unprocessed or barely processed plain paper.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来例を示す断面図、第2図は本発明の第1の
実施例を示す概略的な断面図、第3図は同実施例の制御
電極を示す斜視図、第4図は同実施例のトナーをスモー
ク化する原理を説明するための図、第5図および第6図
は同実施例の制御電極の原理を説明するだめの装部断面
図、第7図は本発明の第2の実施例を示す概略的断面図
、第8図は同実施例の現像剤担持体を示す斜視図、第9
図は同実施例の賛部を模擬的に示す断面図、第10図は
上記第2の実施例における供電方法の他の実施例を模擬
的に示す構成図である。 13・・・記録体、17・・・現像剤担持体(筒状ロー
ラ)、181〜18m6・・・電極、21・・−直流電
源、22・・・交流電源、24・・・現像剤(トナー)
、26・・・制御電極、36・・・現像剤担持体(担持
板)、41、〜41k〜41n・・・電極、42・・・
交流′電源、43・・・交流電源、44・・・交流電源
、45・・・交流電源、46・・・直流電源、47k・
・・抵抗。 出願人代理人 弁理士 鈴 江 武 彦第1図 第3図 第4図 第5図 第 6 図 第 7 図 第 8 図 61に 第9図 第10図
FIG. 1 is a sectional view showing a conventional example, FIG. 2 is a schematic sectional view showing a first embodiment of the present invention, FIG. 3 is a perspective view showing a control electrode of the same embodiment, and FIG. FIGS. 5 and 6 are sectional views of the control electrode of the same embodiment, and FIG. FIG. 8 is a schematic cross-sectional view showing the second embodiment; FIG. 8 is a perspective view showing the developer carrier of the second embodiment; FIG.
The figure is a cross-sectional view schematically showing the supporting part of the same embodiment, and FIG. 10 is a schematic diagram showing another embodiment of the power supply method in the second embodiment. 13...Recording body, 17...Developer carrier (cylindrical roller), 181-18m6...electrode, 21...-DC power supply, 22...AC power supply, 24...Developer ( toner)
, 26... Control electrode, 36... Developer carrier (carrying plate), 41, ~41k-41n... Electrode, 42...
AC' power supply, 43... AC power supply, 44... AC power supply, 45... AC power supply, 46... DC power supply, 47k.
··resistance. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 61, Figure 9, Figure 10

Claims (4)

【特許請求の範囲】[Claims] (1)記録体に対向して設けられ現像剤を担持する担持
体と、との担持体に配設された複数の電極と、これら電
極間に時間的に変化する電界を形成せしめる電界形成手
段と、上記記録体と上記担持体の間に配置され、上記担
持体から上記記録体への現像剤の飛翔を制御する制御電
極とを具備したことを特徴とする記録装置。
(1) A carrier provided facing the recording medium and carrying a developer, a plurality of electrodes disposed on the carrier, and an electric field forming means for forming a temporally varying electric field between these electrodes. and a control electrode disposed between the recording body and the carrier to control the flight of developer from the carrier to the recording body.
(2)制御電極は、絶縁層と、この絶縁層をはさんで設
けられた少なくとも二層の電極とを有し、この電極に画
像記録の時系列信号に応じた信号電圧印加するようにし
た特許請求の範囲第1項記載の記録装置。
(2) The control electrode has an insulating layer and at least two layers of electrodes sandwiching the insulating layer, and a signal voltage is applied to this electrode according to a time-series signal of image recording. A recording device according to claim 1.
(3)電界形成手段は、複数の電極に互いに位相の異な
る多相の交流電圧を印加して担持体の表面に進行波型の
交流電界を形成するようにした特許請求の範囲第1項記
載の記録装置。
(3) The electric field forming means is configured to form a traveling wave type AC electric field on the surface of the carrier by applying multiphase AC voltages having mutually different phases to the plurality of electrodes. recording device.
(4)電界形成手段は、時間的に変化する電界と時間的
に変化しない電界とを重畳するようにした特許請求の範
囲第1項ないし第4項のいずれかに記載の記録装置。
(4) The recording device according to any one of claims 1 to 4, wherein the electric field forming means superimposes a temporally changing electric field and a temporally unchanging electric field.
JP58056035A 1983-03-31 1983-03-31 Recording device Pending JPS59181370A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP58056035A JPS59181370A (en) 1983-03-31 1983-03-31 Recording device
US06/594,011 US4568955A (en) 1983-03-31 1984-03-27 Recording apparatus using a toner-fog generated by electric fields applied to electrodes on the surface of the developer carrier
DE19843411948 DE3411948A1 (en) 1983-03-31 1984-03-30 RECORDING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58056035A JPS59181370A (en) 1983-03-31 1983-03-31 Recording device

Publications (1)

Publication Number Publication Date
JPS59181370A true JPS59181370A (en) 1984-10-15

Family

ID=13015818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58056035A Pending JPS59181370A (en) 1983-03-31 1983-03-31 Recording device

Country Status (1)

Country Link
JP (1) JPS59181370A (en)

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US4994859A (en) * 1989-06-14 1991-02-19 Minolta Camera Kabushiki Kaisha Power cloud developing apparatus with a first and second electric field curtain generating means
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