JPH0658553B2 - Recording device - Google Patents

Recording device

Info

Publication number
JPH0658553B2
JPH0658553B2 JP59267375A JP26737584A JPH0658553B2 JP H0658553 B2 JPH0658553 B2 JP H0658553B2 JP 59267375 A JP59267375 A JP 59267375A JP 26737584 A JP26737584 A JP 26737584A JP H0658553 B2 JPH0658553 B2 JP H0658553B2
Authority
JP
Japan
Prior art keywords
toner
transfer member
ion
polarity
recording
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.)
Expired - Lifetime
Application number
JP59267375A
Other languages
Japanese (ja)
Other versions
JPS61145569A (en
Inventor
一弘 湯浅
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP59267375A priority Critical patent/JPH0658553B2/en
Priority to US06/795,099 priority patent/US4641955A/en
Publication of JPS61145569A publication Critical patent/JPS61145569A/en
Publication of JPH0658553B2 publication Critical patent/JPH0658553B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/34—Apparatus 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
    • G03G15/344—Apparatus 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
    • G03G15/348—Apparatus 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 using a stylus or a multi-styli array

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)

Description

【発明の詳細な説明】 技術分野 本発明は記録装置、とくに複写機や、処理システムの出
力装置として使用されるプリンタ、プロッタなど、転写
材、特に普通紙に画像を記録する記録装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus, in particular, a copying machine, a printer used as an output device of a processing system, a plotter, and the like, and a recording apparatus for recording an image on a transfer material, particularly plain paper.

従来技術 イオン流を画素毎に制御して画像の記録を行う、いわゆ
るイオンプロジェクション記録方式それ自体は周知であ
る（日経エレクトロニクス１９８２年７月５日Ｐ１３９
〜１４０）。2. Description of the Related Art The so-called ion projection recording method itself, in which an ion stream is controlled for each pixel to record an image, is well known (Nikkei Electronics, July 5, 1982, P139.
~ 140).

この従来のイオンプロジェクション記録方式は、記録体
（中間媒体）に対し、イオン流を記録すべき画像情報に
基づいて制御することにより記録体表面に静電潜像を形
成し、該潜像をトナーを用いて現像器により現像し、し
かる後に転写部材（例えば普通紙）にそのトナー像を転
写、定着してハードコピーを得るというものである。In this conventional ion projection recording system, an electrostatic latent image is formed on the surface of a recording medium (intermediate medium) by controlling the ion current based on image information to be recorded, and the latent image is formed by a toner image. Is developed by a developing device, and then the toner image is transferred and fixed on a transfer member (eg, plain paper) to obtain a hard copy.

このように従来のイオンプロジェクション記録方式では
転写部材に画像を記録するまでに記録体への潜像形成、
現像、転写部材への転写、定着等の各プロセスが有り、
これらの各プロセスを実行するための手段を種々、必要
とするために装置構成が複雑化し、その結果コスト高と
なり且つ信頼性が低下すると共に装置が大型化するとい
う欠点があった。As described above, in the conventional ion projection recording method, latent images are formed on the recording medium before the image is recorded on the transfer member.
There are processes such as development, transfer to transfer member, and fixing,
Since various means for executing each of these processes are required, the structure of the device becomes complicated, resulting in high cost, low reliability, and large size of the device.

目的 本発明はこのような従来技術の欠点を解消し、普通紙等
の転写部材に直接、トナー像を形成するイオンプロジェ
クション記録方式を採用した、高品質の画像記録を行う
ことができる記録装置を提供することを目的とする。An object of the present invention is to solve the above-mentioned drawbacks of the prior art and to provide a recording apparatus capable of performing high-quality image recording, which employs an ion projection recording system for directly forming a toner image on a transfer member such as plain paper. The purpose is to provide.

構成 本発明では、トナーを第１の極性側に帯電させて、薄層
化して搬送するトナー帯電搬送手段と、該トナー帯電搬
送手段により形成された帯電トナー層に表面が接触もし
くは近接するように供給される転写部材を挾んで前記帯
電トナー層とは反対側に該帯電トナーと同極性及びこれ
とは反対の第２の極性のイオンを発生するイオン発生手
段と、該イオン発生手段により発生するイオン流を記録
すべき画像情報に基づいて画素毎に制御し、前記第２の
極性のイオンと前記帯電トナーとの間に働くクーロン力
により前記転写部材に前記帯電トナーを選択的に付着さ
せるイオン流制御手段とを有することを特徴とするもの
である。Structure In the present invention, the toner is charged to the first polarity side, the toner charging and conveying means for conveying the toner in a thin layer, and the surface contact or approach the charged toner layer formed by the toner charging and conveying means. Ion generating means for generating ions of the same polarity as the charged toner and a second polarity opposite to the charged toner on the side opposite to the charged toner layer across the supplied transfer member, and the ion generating means. An ion flow is controlled for each pixel based on image information to be recorded, and ions for selectively attaching the charged toner to the transfer member by a Coulomb force acting between the ions of the second polarity and the charged toner. And a flow control means.

本発明の構成について以下、一実施例に基づいて説明す
る。第１図には本発明に係る記録装置の一実施例の概略
構成が示されており、同図においてトナー１を保持、搬
送する現像ローラ３は内部の固定磁極群３０と、電源４
により負電圧が印加され、円筒状のスリーブ３２を有す
る回転ドラム３１とからなり、回転ドラム３１は図示し
てない駆動源により矢印７方向に回転駆動されるように
構成されている。ここでスリーブ３２は、たとえばドラ
ム３１の一部を構成している金属円筒部とそれを被覆し
ている導電性のゴム（例えば体積抵抗１０5Ω・cm、表
面粗さ５μｍ以下、硬度３５HSのシリコンゴム）で形成
され、電源４により負極性側にバイアスされている。The configuration of the present invention will be described below based on an embodiment. FIG. 1 shows a schematic configuration of an embodiment of a recording apparatus according to the present invention. In FIG. 1, the developing roller 3 that holds and conveys the toner 1 has an internal fixed magnetic pole group 30 and a power source 4.
And a rotary drum 31 having a cylindrical sleeve 32. The rotary drum 31 is configured to be rotationally driven in the direction of arrow 7 by a drive source (not shown). Here, the sleeve 32 is, for example, a metal cylindrical portion which constitutes a part of the drum 31 and a conductive rubber (for example, volume resistance 10 5 Ω · cm, surface roughness 5 μm or less, hardness 35 HS, which covers the metal cylindrical portion. It is made of silicon rubber) and is biased to the negative polarity side by the power supply 4.

またドクターブレード２１はスプリング２２の弾性力に
より現像ローラ３におけるスリーブ３２に圧接される如
く付勢されている。The doctor blade 21 is urged by the elastic force of the spring 22 so as to be pressed against the sleeve 32 of the developing roller 3.

更に現像ローラ３のスリーブ３２表面に形成された帯電
トナー層１１にその表面が接触するように転写部材（例
えば普通紙）５が図示していない転写部材供給手段によ
り現像ローラ３下部に供給されるように構成されてい
る。Further, a transfer member (for example, plain paper) 5 is supplied to the lower part of the developing roller 3 by a transfer member supply means (not shown) so that the surface of the developing roller 3 contacts the charged toner layer 11 formed on the surface of the sleeve 32. Is configured.

また転写部材５を挾んでスリーブ３２に形成された帯電
トナー層１１とは反対側には帯電トナーと同極性および
それと反対の極性のイオン流を主走査方向（図上、現像
ローラ３の軸方向）に画素単位毎に制御し、転写部材５
にトナーを選択的に付着させるためのイオン流制御ヘッ
ド６が設けられている。On the side opposite to the charged toner layer 11 formed on the sleeve 32 across the transfer member 5, an ion current having the same polarity as the charged toner and the opposite polarity to the charged toner is applied in the main scanning direction (the axial direction of the developing roller 3 in the figure). ) Is controlled for each pixel unit, and the transfer member 5
An ion flow control head 6 is provided to selectively attach the toner to the.

イオン流制御ヘッド６は、コロナイオンを発生させるた
めのコロナワイヤ６１，コロナワイヤのチャージャーと
して機能するケーシング材６２，ケーシング材６２の上
端部に固設された制御板６０から構成されている。そし
て制御板６０は記録すべき画素情報に基づいてスイッチ
ングされた電圧が印加される記録電極６３，絶縁層６４
及び絶縁層６４を挾んで記録電極６３とイオン流を制御
するための電界が形成される制御電極６５とからなって
いる。この制御板６０の構造を第２図及び第３図に示
す。第２図はコロナワイヤ６１側から制御板６０を見た
図であり、同図に示すように主走査方向に孔６６が画素
数分（８本／mmでＡ４であれば１７２８個）だけ一定間
隔で穿設されている。そして孔６６の周囲にはリング状
に記録電極６３が形成されている。The ion flow control head 6 is composed of a corona wire 61 for generating corona ions, a casing material 62 that functions as a charger for the corona wire, and a control plate 60 fixed to the upper end of the casing material 62. The control plate 60 has a recording electrode 63 and an insulating layer 64 to which a voltage switched based on pixel information to be recorded is applied.
And a recording electrode 63 sandwiching the insulating layer 64 and a control electrode 65 in which an electric field for controlling the ion flow is formed. The structure of the control plate 60 is shown in FIGS. 2 and 3. FIG. 2 is a view of the control plate 60 seen from the corona wire 61 side, and as shown in the figure, the holes 66 are constant in the main scanning direction by the number of pixels (8 / mm and 1728 for A4). It is drilled at intervals. A ring-shaped recording electrode 63 is formed around the hole 66.

第３図には第２図におけるＡ−Ａ線による断面が示され
ている。同図は制御電極６５が時分割駆動される場合の
構造のために65a,65b…というようにブロック毎に分割
されている。FIG. 3 shows a cross section taken along the line AA in FIG. In the figure, the control electrode 65 is divided into blocks such as 65a, 65b, ... For the structure in the case of being driven in a time division manner.

また制御板６０に穿設された孔６６は第２図に示すよう
な一直線状の配列に限らず、千鳥状に配列されてもよい
ことは勿論である。Further, the holes 66 formed in the control plate 60 are not limited to the straight line arrangement as shown in FIG. 2, but may be arranged in a zigzag pattern.

さて、コロナワイヤ６１とケーシング材６２との間には
現像ローラ３のスリーブ３２に形成される帯電トナー層
１１と同極性の直流電源７０と高圧の交流電源８０とが
直列に接続され、コロナ放電が起こるように構成されて
いる。したがって、発生するイオンは正(+)，負(-)の双
方の極性のものである。通常、交流を印加した場合、負
のイオンの方が電離し易いため、本実施例では正の直流
分に交流を重畳するようにしているが転写部材５にトナ
ーを付着させるのに必要な極性である、負のイオンの方
が重要であるので直流電源７０を省略してもよい。Now, between the corona wire 61 and the casing material 62, a DC power source 70 of the same polarity as the charged toner layer 11 formed on the sleeve 32 of the developing roller 3 and a high-voltage AC power source 80 are connected in series, and corona discharge is performed. Is configured to occur. Therefore, the generated ions have both positive (+) and negative (-) polarities. Normally, when an alternating current is applied, negative ions are more likely to be ionized. Therefore, in the present embodiment, the alternating current is superposed on the positive direct current component. However, the polarity necessary for attaching the toner to the transfer member 5 is large. Since the negative ions are more important, the DC power supply 70 may be omitted.

このように記録装置が動作状態にあるときは、常にコロ
ナワイヤ６１とケーシング材６２との間で起こるコロナ
放電により正，負のイオンが発生する。As described above, when the recording apparatus is in the operating state, positive and negative ions are always generated by the corona discharge that occurs between the corona wire 61 and the casing material 62.

更に制御板６０の記録電極６３には記録すべき画像情報
に基づいてスイッチング制御される記録電源６８が、ま
た制御電極６５には一定のバイアス電圧を印加するため
のバイアス電源６９が接続されている（制御電極６５を
時分割駆動する場合については後述する。）。なお、第
１図では代表的に、１つの記録電極６３等と記録電源６
８や電源６９との接続関係を示しているが実際には他の
記録電極６３等にもこのように接続されている。Further, the recording electrode 63 of the control plate 60 is connected to a recording power source 68 which is switching-controlled based on image information to be recorded, and the control electrode 65 is connected to a bias power source 69 for applying a constant bias voltage. (A case where the control electrode 65 is driven in a time division manner will be described later). In FIG. 1, one recording electrode 63 and the recording power source 6 are typically used.
8 and the power source 69 are shown in the connection relationship, but in reality, the other recording electrodes 63 and the like are also connected in this way.

上記構成において、磁性を有する高抵抗一成分トナー１
は現像ローラ３内の磁極群３１の磁界によりスリーブ３
２上に保持され、図示してない駆動手段によりローラ３
１が矢印７方向すなわち反時計回り方向に回転駆動され
るのに伴いドクタブレード２１により一定の層厚に薄層
化されると共に、スリーブ３２またはドクタブレード２
１との摩擦により第１の極性（本実施例では正極性側の
(+)）に帯電させられる。ここでトナーの薄層化あるい
は帯電は、本実施例ではスリーブ３２の表面を導電性の
ゴムで形成し、該スリーブ３２の表面に硬質のドクタブ
レード２１をスプリング２２で強く付勢することにより
実現しているが、これに限らず通常の高抵抗一成分トナ
ーを用いて現像方式であれば如何なる手段を用いてもよ
い。In the above structure, a high-resistance one-component toner 1 having magnetism
Is the sleeve 3 due to the magnetic field of the magnetic pole group 31 in the developing roller 3.
2 is held on the roller 3 by a driving means (not shown).
1 is rotationally driven in the direction of arrow 7, that is, in the counterclockwise direction, the doctor blade 21 thins the layer to a certain layer thickness, and the sleeve 32 or the doctor blade 2
By friction with 1, the first polarity (in this embodiment, the positive polarity side
(+)). In this embodiment, thinning or charging of the toner is realized by forming the surface of the sleeve 32 with conductive rubber and strongly urging the hard doctor blade 21 on the surface of the sleeve 32 with a spring 22. However, the present invention is not limited to this, and any means may be used as long as it is a developing system using a normal high-resistance one-component toner.

さて、スリーブ３２の表面上に形成された帯電トナー層
１１は層厚１０〜５０μｍ、帯電量３〜２５μｃ／ｇ程
度のもので、現像ローラ３の矢印７方向の回転に伴い、
転写部材５と接触もしくは近接する位置に搬送される。The charged toner layer 11 formed on the surface of the sleeve 32 has a layer thickness of 10 to 50 μm and a charge amount of about 3 to 25 μc / g, and as the developing roller 3 rotates in the direction of arrow 7,
It is conveyed to a position in contact with or close to the transfer member 5.

一方、転写部材５はその表面が図示していない通常の複
写機やファクシミリ装置等の記録装置に用いられている
周知の転写部材供給手段により現像ローラ３下部に位置
する、スリーブ３２に表面に形成された帯電トナー層１
１に接触もしくは近接するように図上、矢印８方向に移
動するように供給される。On the other hand, the surface of the transfer member 5 is formed on the surface of the sleeve 32, which is positioned below the developing roller 3 by the well-known transfer member supply means used in a recording apparatus such as a normal copying machine or a facsimile machine (not shown). Charged toner layer 1
It is supplied so as to come into contact with or come close to 1 in the direction of arrow 8 in the figure.

更にこれらの動作と同時に転写部材５の下方に配置され
たイオン流制御ヘッド６のコロナワイヤ６１とケース６
２との間で起こるコロナ放電により発生する帯電トナー
と同極性及びこれとは反対の第２の極性の、すなわち正
負のイオン流が、制御電極６５と記録電極６３との間に
記録すべき画像情報に応じて形成される電界により主走
査線方向に順次制御され、転写部材５にトナー像が形成
される。Further, simultaneously with these operations, the corona wire 61 and the case 6 of the ion flow control head 6 disposed below the transfer member 5 are
An image of an image to be recorded between the control electrode 65 and the recording electrode 63 is the same as that of the charged toner generated by the corona discharge generated between the control electrode 65 and the recording electrode 63. The toner image is formed on the transfer member 5 by being sequentially controlled in the main scanning line direction by the electric field formed according to the information.

この時のイオン流の制御状態を第４図及び第５図により
説明する。すなわち転写部材５において主走査線方向に
記録すべき画素については第４図に示すように記録電極
６３に制御電極６５に印加されるバイアス電圧より低い
電圧が記録電源６８より印加され、この結果、制御板６
０に穿設された孔６６では負のイオンが通過し易い電界
ＥONが発生し、負のイオンは孔６６を通過して転写部材
５の下面に到達する。The control state of the ion flow at this time will be described with reference to FIGS. 4 and 5. That is, for the pixels to be recorded in the main scanning line direction on the transfer member 5, a voltage lower than the bias voltage applied to the control electrode 65 is applied to the recording electrode 63 from the recording power source 68 as shown in FIG. Control plate 6
An electric field E ON in which negative ions easily pass is generated in the hole 66 bored in 0, and the negative ion reaches the lower surface of the transfer member 5 through the hole 66.

そして転写部材５の下面が上記負のイオンによりドット
状に帯電すると、帯電トナー層のトナー（正に帯電して
いる）は転写部材５の上面側に転移し、トナー像１２が
形成される。Then, when the lower surface of the transfer member 5 is dot-shaped charged by the negative ions, the toner (positively charged) in the charged toner layer is transferred to the upper surface side of the transfer member 5, and the toner image 12 is formed.

一方、記録すべきでない画素については第５図に示すよ
うに記録電極６３に制御電極６５に印加されるバイアス
電圧より高い電圧が記録電源６８より印加され、この結
果、制御板６０に穿設された孔６６では正のイオンが通
過し易い電界ＥOFFが発生し、この為に負のイオンは孔
６６を通過できず、逆に正のイオンのみが孔６６を通過
して転写部材５の下面に到達する。そして転写部材５の
下面が上記正のイオンによりドット状に帯電すると、同
極性である転写部材５に接触している帯電トナー層１１
のトナーは反発され、更に転写部材５の地肌で付着しよ
うとしていたトナーも現像ローラ３のスリーブ３２側に
戻される。その結果、既述したようにして形成されたト
ナー像１２と共に、S/Nの大きい高品質の画像が得られ
る。On the other hand, for pixels that should not be recorded, a voltage higher than the bias voltage applied to the control electrode 65 is applied to the recording electrode 63 from the recording power source 68 as shown in FIG. In the hole 66, an electric field E OFF is generated in which positive ions easily pass, and therefore negative ions cannot pass through the hole 66, and conversely, only positive ions pass through the hole 66 and the lower surface of the transfer member 5 is passed. To reach. When the lower surface of the transfer member 5 is charged in a dot shape by the positive ions, the charged toner layer 11 in contact with the transfer member 5 having the same polarity.
Toner is repelled, and the toner that was about to adhere due to the background of the transfer member 5 is also returned to the sleeve 32 side of the developing roller 3. As a result, a high quality image having a large S / N is obtained together with the toner image 12 formed as described above.

一方、転写部材５上のトナー像１２は、図示してない定
着装置により定着され、半永久的に記録されることとな
る。On the other hand, the toner image 12 on the transfer member 5 is fixed by a fixing device (not shown) and semipermanently recorded.

またスリーブ３２上に残されたトナー１４はホッパ内に
戻り、再度、現像に用いられる。Further, the toner 14 left on the sleeve 32 returns to the hopper and is used again for development.

尚、以上の説明ではトナーを正に帯電させ、且つコロナ
放電により発生するイオンの極性を負としたが、これら
はそれぞれ、逆の極性でも構わず、その場合には制御電
極６５及び記録電極６３に印加する電圧の関係を逆にす
ればよい。In the above description, the toner is positively charged and the polarity of the ions generated by the corona discharge is negative, but they may have opposite polarities. In that case, the control electrode 65 and the recording electrode 63 may be used. It is sufficient to reverse the relationship of the voltages applied to.

また第１図において、ローラ３１ひいてはスリーブ３２
に電源４により負電圧が供給されているが、これはスリ
ーブ３２の地汚れを防止するためであり、基本的には接
地電位でもよい。Further, in FIG. 1, the roller 31 and thus the sleeve 32 are
A negative voltage is supplied from the power source 4 to prevent the sleeve 32 from being soiled, and may be basically ground potential.

次に制御電極６５を複数のブロックに分割して時分割駆
動する場合における制御電極６５及び記録電極６３に印
加される電圧の関係を第６図に示す。Next, FIG. 6 shows the relationship between the voltages applied to the control electrode 65 and the recording electrode 63 when the control electrode 65 is divided into a plurality of blocks and driven in a time division manner.

いま、幾つかの制御電極のうち制御電極６５ａが選択さ
れた場合を考える。ここで選択された制御電極６５ａに
電圧ＶCONが印加され、選択されていない電極に印加さ
れる電位は０Ｖとする。Now, consider a case where the control electrode 65a is selected from among several control electrodes. The voltage V CON is applied to the control electrode 65a selected here, and the potential applied to the non-selected electrode is 0V.

これと同時に、記録すべき画素に対応する記録電極６３
−１には電圧ＶP・ONが、それ以外の画素に対応する記録
電極６３−２には電圧ＶP・OFFがそれぞれ、パルス状に
印加される。これらの電圧の関係を今、ＶP・OFF＞Ｖ
C・ON＞ＶP・ON＞０Ｖとすれば、記録すべき画素に対応す
る記録電極６３の孔６６にだけ第４図で説明した電界Ｅ
ONと等価な電界が印加され、負のイオンが転写部材５の
下面に到達し、トナー転移が起こる。そして制御電極ON
（ＶCON）／記録電極OFF（ＶPOFF），制御電極OFF（０
Ｖ）／記録電極ON（ＶPON），制御電極OFF（ＯＶ）／記
録電極OFF（ＶPOFF）のいかなる場合にも、制御板６０
に設けられた孔６６に発生する電界は第５図に示したＥ
OFFと等価となり、正のイオンだけが転写部材５に達す
ることになる。したがって、時分割駆動の場合にもS/N
の大きい高品質の画像を得ることができる。At the same time, the recording electrode 63 corresponding to the pixel to be recorded is
The voltage V P · ON is applied to −1 and the voltage V P · OFF is applied to the recording electrodes 63-2 corresponding to the other pixels in a pulse shape. The relationship between these voltages is now V P · OFF ＞ V
If C · ON > V P · ON > 0 V, the electric field E described in FIG. 4 is provided only in the hole 66 of the recording electrode 63 corresponding to the pixel to be recorded.
An electric field equivalent to ON is applied, negative ions reach the lower surface of the transfer member 5, and toner transfer occurs. And control electrode ON
(V CON ) / recording electrode OFF (V POFF ), control electrode OFF (0
V) / recording electrode ON (V PON ), control electrode OFF (OV) / recording electrode OFF (V POFF ), the control plate 60
The electric field generated in the hole 66 provided in the
It is equivalent to OFF, and only positive ions reach the transfer member 5. Therefore, even in the case of time division drive, S / N
It is possible to obtain a high quality image having a large size.

これは制御板６０に孔６６を千鳥状に設けた場合にも同
様である。上記実施例ではスリーブ３２を回転させた
が、磁極群３０を１つの回転する磁極群となし、スリー
ブを固定してこれを回転させてもよい。また、上記実施
例では制御板６０の記録電極６３や孔６６を複数もうけ
たが１つでもよく、その場合、主走査方向にそれを移動
走査することにより２次元画像を形成することも可能で
ある。また、制御板６０は孔６６を一次元的に配列した
が、二次元的に配列してもよい。たとえば、２つの一次
元的に千鳥状に配列された孔６６を交互に千鳥状に配列
して４列とすることも可能である。This is the same when the holes 66 are provided in the control plate 60 in a zigzag pattern. Although the sleeve 32 is rotated in the above embodiment, the magnetic pole group 30 may be formed as one rotating magnetic pole group, and the sleeve may be fixed and rotated. In the above embodiment, the control plate 60 has a plurality of recording electrodes 63 and holes 66, but it may have one. In that case, a two-dimensional image can be formed by moving and scanning the recording electrodes 63 and holes 66 in the main scanning direction. is there. Further, although the control plate 60 has the holes 66 arranged one-dimensionally, they may be arranged two-dimensionally. For example, it is also possible to alternately arrange the two one-dimensionally staggered holes 66 in a staggered manner to form four rows.

効果 本発明ではトナー搬送手段により搬送、保持され第１の
極性に帯電された帯電トナー層に転写部材供給手段によ
り転写部材を接触させるように送出し、転写部材を挾ん
で帯電トナー層と反対側に設けられたイオン発生手段に
より帯電トナーと同極性及びこれとは反対の第２の極性
のイオンを発生させ、該イオン流をイオン流制御手段に
より記録すべき画像情報に基づいて画素毎に制御し、前
記イオンと帯電トナーとの間に働くクーロン力により転
写部材にトナーを選択的に付着させるように構成したの
で、転写部材に直接トナー像を形成でき、従来に比して
転写部材に画像を記録するまでのプロセスが非常に簡単
になる。したがって、装置の構成が簡単になり、それ
故、信頼性の向上が図れ、しかも安価で且つ装置の小型
化が図れる。Effect According to the present invention, the transfer member is fed so that the transfer member is brought into contact with the charged toner layer which is conveyed and held by the toner conveying unit and is charged to the first polarity, and the transfer member is sandwiched between the charged toner layer and the opposite side. Ion generating means provided to generate ion having the same polarity as the charged toner and a second polarity opposite to the charged toner, and the ion flow is controlled by the ion flow control means for each pixel based on image information to be recorded. Since the toner is selectively adhered to the transfer member by the Coulomb force acting between the ions and the charged toner, a toner image can be directly formed on the transfer member, and the image on the transfer member can be improved as compared with the conventional case. The process of recording is very easy. Therefore, the structure of the device is simplified, and therefore reliability can be improved, and the device can be inexpensive and downsized.

更に転写部材に対し、記録すべきでない画素に対しては
転写部材の帯電トナー層が接触する側と反対側に転写部
材の帯電トナーと反対の極性のイオンを照射するように
したので転写部材の地肌汚れが防止でき、S/Nの高い高
品質の画像記録が可能となる。Further, with respect to the transfer member, with respect to the pixels which should not be recorded, the side opposite to the side where the charged toner layer of the transfer member comes into contact is irradiated with ions having the opposite polarity to the charged toner of the transfer member. It is possible to prevent background stains and record high quality images with high S / N.

【図面の簡単な説明】 第１図は本発明に係る記録装置の一実施例を示す概略構
成図、 第２図は制御板６０をコロナワイヤ６１側から見た記録
電極６３の配列状態を示す図、 第３図は第２図におけるＡ−Ａ線による断面図、 第４図及び第５図はそれぞれ、イオン制御ヘッド６にお
けるイオン流の制御状態を示し、 第４図は転写部材５に画像を記録する場合のイオン流の
制御状態を示す図、 第５図は転写部材５に画像を記録しない場合のイオン流
の制御状態を示す図、 第６図は制御電極６５を時分割駆動する場合における制
御電極６５及び記録電極６３に印加される電圧の関係を
示す図である。 主要部分の符号の説明 ２１…ドクターブレード ３…現像ローラ ３０…磁極群 ３１…ローラ ３２…スリーブ ５…転写部材 ６…イオン流制御ヘッド ６０…制御板 ６１…コロナワイヤ ６２…ケーシング材 ６３…記録電極 ６４…絶縁層 ６５…制御電極 ６８，６９，７０，８０…電源BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing an embodiment of a recording apparatus according to the present invention, and FIG. 2 shows an arrangement state of recording electrodes 63 when a control plate 60 is viewed from a corona wire 61 side. 3 and 4 are cross-sectional views taken along the line AA in FIG. 2, FIGS. 4 and 5 show control states of ion flow in the ion control head 6, and FIG. 4 shows an image on the transfer member 5. FIG. 5 is a diagram showing the control state of the ion flow when recording is performed, FIG. 5 is a diagram showing the control state of the ion flow when the image is not recorded on the transfer member 5, and FIG. 6 is a case where the control electrode 65 is time-division driven. 6 is a diagram showing a relationship between voltages applied to a control electrode 65 and a recording electrode 63 in FIG. Description of symbols of main parts 21 ... Doctor blade 3 ... Developing roller 30 ... Magnetic pole group 31 ... Roller 32 ... Sleeve 5 ... Transfer member 6 ... Ion flow control head 60 ... Control plate 61 ... Corona wire 62 ... Casing material 63 ... Recording electrode 64 ... Insulating layer 65 ... Control electrode 68, 69, 70, 80 ... Power supply

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】トナーを所定の極性側に帯電させて、薄層
化して搬送するトナー帯電搬送手段と、該トナー帯電搬
送手段により形成された帯電トナー層に表面が接触もし
くは近接するように供給される転写部材を狭んで前記帯
電トナー層とは反対の側に設けられたイオン発生手段と
イオン流制御手段とを有し、イオン発生手段で発生した
イオンをイオン流制御手段により電界を利用してイオン
流制御し、帯電トナーの転写部材への付着を制御するイ
オン流制御方式の記録装置であって、 前記イオン発生手段は、前記帯電トナーと同じ極性をも
つ第１の極性のイオンと、前記帯電トナーと反対の極性
をもつ第２の極性のイオンとを発生するようになってお
り、 前記イオン流制御手段は、前記転写部材に前記帯電トナ
ーを転写させるときには、前記イオン発生手段によって
発生した第１および第２の極性のイオンのうち、第２の
極性のイオンのみをイオン流として転写部材に向かわせ
るように、記録すべき画像情報に基づいて画素毎に電界
を制御し、また、前記転写部材に前記帯電トナーを転写
させないときには、前記イオン発生手段によって発生し
た第１および第２の極性のイオンのうち、第１の極性の
イオンのみをイオン流として転写部材に向かわせるよう
に、記録しない情報に基づいて電界を制御するようにな
っていることを特徴とする記録装置。1. A toner charging / conveying means for charging a toner to a predetermined polarity side to convey it in a thin layer, and a charging toner layer formed by the toner charging / conveying means so that the surface is brought into contact with or brought close to the toner. The transfer member has an ion generating means and an ion flow controlling means which are provided on the side opposite to the charged toner layer, and the ions generated by the ion generating means are utilized by an electric field by the ion flow controlling means. Is a recording device of an ion flow control system for controlling the ion flow to control the adhesion of the charged toner to the transfer member, wherein the ion generating means has a first polarity ion having the same polarity as the charged toner, Second charged ions having a polarity opposite to that of the charged toner are generated, and the ion flow control means, when transferring the charged toner to the transfer member, Of the first and second polar ions generated by the ion generating means, only the second polar ion is directed to the transfer member as an ion flow, and an electric field is set for each pixel based on the image information to be recorded. When the controlled toner is not transferred to the transfer member, only the first polarity ion of the first and second polarity ions generated by the ion generating unit is transferred to the transfer member as an ion flow. A recording device characterized in that the electric field is controlled based on information not recorded so as to face it.
JP59267375A 1984-11-05 1984-12-20 Recording device Expired - Lifetime JPH0658553B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59267375A JPH0658553B2 (en) 1984-12-20 1984-12-20 Recording device
US06/795,099 US4641955A (en) 1984-11-05 1985-11-05 Ion projection recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59267375A JPH0658553B2 (en) 1984-12-20 1984-12-20 Recording device

Publications (2)

Publication Number Publication Date
JPS61145569A JPS61145569A (en) 1986-07-03
JPH0658553B2 true JPH0658553B2 (en) 1994-08-03

Family

ID=17443961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59267375A Expired - Lifetime JPH0658553B2 (en) 1984-11-05 1984-12-20 Recording device

Country Status (1)

Country Link
JP (1) JPH0658553B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2520501B2 (en) * 1990-05-30 1996-07-31 三田工業株式会社 Image forming device
JP2520498B2 (en) * 1990-05-30 1996-07-31 三田工業株式会社 Image forming device
JP2520500B2 (en) * 1990-05-30 1996-07-31 三田工業株式会社 Image forming device
JP2520502B2 (en) * 1990-05-30 1996-07-31 三田工業株式会社 Image forming device
JP2520499B2 (en) * 1990-05-30 1996-07-31 三田工業株式会社 Image forming device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049904B2 (en) * 1977-05-17 1985-11-05 松下電器産業株式会社 Electric field image recording device
JPS5955764A (en) * 1982-09-24 1984-03-30 Canon Inc Image recording apparatus
JPS60199668A (en) * 1984-03-23 1985-10-09 Canon Inc Picture recorder

Also Published As

Publication number Publication date
JPS61145569A (en) 1986-07-03

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