JPH032069B2 - - Google Patents
Info
- Publication number
- JPH032069B2 JPH032069B2 JP21312585A JP21312585A JPH032069B2 JP H032069 B2 JPH032069 B2 JP H032069B2 JP 21312585 A JP21312585 A JP 21312585A JP 21312585 A JP21312585 A JP 21312585A JP H032069 B2 JPH032069 B2 JP H032069B2
- Authority
- JP
- Japan
- Prior art keywords
- recording
- magnetic
- electrode
- toner
- magnetic material
- 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
Links
- 239000000696 magnetic material Substances 0.000 claims description 42
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
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
- G03G15/24—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 whereby at least two steps are performed simultaneously
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】
〔概要〕
静電記録における、磁極間のトナー直立不良に
起因する画像欠落を防止するため、記録電極録近
傍の両側に磁性体を設け、記録画像の品質の向上
を図る。[Detailed Description of the Invention] [Summary] In order to prevent image loss caused by toner failure between magnetic poles in electrostatic recording, magnetic materials are provided on both sides near the recording electrode to improve the quality of recorded images. Plan.
本発明はフアクシミリおよびプリンタ等に用い
られる画像記録装置に係り、特に絶縁性記録体を
介して記録電極と磁性トナー現像機を配置し、画
像信号印加と同時に絶縁性記録体にトナー像を形
成する記録装置の記録電極に磁性材を設けること
により、出力画像の画質向上を図る技術に関す
る。
The present invention relates to an image recording device used in facsimile machines, printers, etc., and in particular, a recording electrode and a magnetic toner developing device are arranged through an insulating recording body, and a toner image is formed on the insulating recording body at the same time as an image signal is applied. The present invention relates to a technique for improving the image quality of an output image by providing a magnetic material in the recording electrode of a recording device.
本発明が関与する記録装置における記録原理と
構成の詳細は、本発明者らによつて先に提案され
て特許出願されているが、改めて当記録装置の概
略を説明する。
Although the details of the recording principle and configuration of the recording device to which the present invention relates have been previously proposed and patented by the present inventors, an outline of the recording device will be explained once again.
第４図は記録部の構成を示したものであり、記
録電極１は複数のグループからなる電極針２を一
列に並べたマルチスタイラスを構成している。こ
の記録電極１に対して誘電体フイルムからなる絶
縁性記録体３を接触せしめる。一方、固定された
円筒スリーブ４の内部に、回転する磁気ローラ５
を有する磁性トナー現像機６が上記絶縁性記録体
３を介して記録電極１と対向する位置に設置され
る。更に円筒スリーブ４の上には複数のセグメン
トに分割された対向電極７を密着して配置する。 FIG. 4 shows the configuration of the recording section, and the recording electrode 1 constitutes a multi-stylus in which electrode needles 2 consisting of a plurality of groups are arranged in a line. An insulating recording body 3 made of a dielectric film is brought into contact with the recording electrode 1. On the other hand, a rotating magnetic roller 5 is placed inside the fixed cylindrical sleeve 4.
A magnetic toner developing device 6 having a magnetic toner developing device 6 is installed at a position facing the recording electrode 1 with the insulating recording body 3 interposed therebetween. Further, on the cylindrical sleeve 4, a counter electrode 7 divided into a plurality of segments is arranged in close contact with each other.
記録を行なうに当たては、円筒スリーブ４の外
周に磁性トナーを転送し、電極針２に対して画像
信号に対応した電圧を印加しかつ対向電極７に逆
極性の電圧を選択的に印加することにより、絶縁
性記録体３に磁性トナーを付着せしめてトナー像
を形成する。 To perform recording, magnetic toner is transferred to the outer circumference of the cylindrical sleeve 4, a voltage corresponding to the image signal is applied to the electrode needle 2, and a voltage of opposite polarity is selectively applied to the counter electrode 7. By doing so, magnetic toner is attached to the insulating recording medium 3 to form a toner image.
第５図は電極針２に電圧が印加された状態にお
いて、絶縁性記録体３に磁性トナーが付着されて
トナー像１９が形成される様態を拡大して説明し
ている。図中の符号２，３，４，５，７は第４図
に対応している。絶縁性記録体３が例えば図示矢
印方向に移動しつつある間に、電極針２と対向電
極７とにそれぞれ逆極性の電圧パルスを印加する
と、電極針２と絶縁性記録体３の間の微小空隙に
おいて気中放電が起こり、絶縁性記録体３の電極
針２側の面上に潜像電荷２０が形成される。これ
と同時に選択されたセグメント上に運ばれてきた
磁気ブラシ１８の先端のトナーに逆極性の電荷が
注入され、潜像電荷２０のクーロン力と引き合つ
て絶縁性記録体３上にトナー像１９が形成され
る。尚、絶縁性記録体３の電極針２側の面には気
中放電を生じせしめるのに必要な微小空隙を保つ
ため、所定の高さをもつ凹凸層が形成されてい
る。 FIG. 5 shows an enlarged view of how magnetic toner is attached to the insulating recording medium 3 and a toner image 19 is formed in a state where a voltage is applied to the electrode needle 2. Reference numerals 2, 3, 4, 5, and 7 in the figure correspond to those in FIG. When voltage pulses of opposite polarity are applied to the electrode needle 2 and the counter electrode 7 while the insulating recording body 3 is moving, for example, in the direction of the arrow shown in the figure, the minute voltage between the electrode needle 2 and the insulating recording body 3 is applied. Aerial discharge occurs in the gap, and a latent image charge 20 is formed on the surface of the insulating recording body 3 on the electrode needle 2 side. At the same time, charges of opposite polarity are injected into the toner at the tip of the magnetic brush 18 that has been carried onto the selected segment, and is attracted to the Coulomb force of the latent image charge 20 to form a toner image 19 on the insulating recording medium 3. is formed. Incidentally, an uneven layer having a predetermined height is formed on the surface of the insulating recording body 3 on the side of the electrode needle 2 in order to maintain the micro-gaps necessary for generating an air discharge.
第６図は記録装置の全体構成を示しており、図
中の符号１，３，４，６，７は第４図に対応して
いる。絶縁性記録体３は誘電体フイルムをベルト
状にしてローラ８，９，１０によつて一定の速度
で回転させる。該絶縁性記録体３の内側に記録電
極１の先端を接触せしめるよう配置する。また対
向電極７を円筒スリーブ４の面に有する磁性トナ
ー現像機６を記録電極１と対向して設置する。第
４図、第５図を参照して説明した如く、絶縁性記
録体３上にトナー像を形成した後に、絶縁性記録
体３を回転して、接地したローラ９の部分で記録
紙１２を絶縁性記録体３に平行に搬送し、裏面か
ら転写ローラ１３を用いてトナー像を記録紙１２
に転写する。その後、記録紙１２上の転写像は定
着機１４によつて記録紙１２に固着される。他
方、絶縁性記録体３を更に回転させ、絶縁性記録
体３の両面にコロナ除電器１６と１７を相対して
配置した部分で、互いに位相を異にする交番電圧
をそれぞれのコロナ除電器に加えると、絶縁性記
録体３上に残留した磁性トナーの電荷が消去さ
れ、該磁性トナーの絶縁性記録体３へ付着する力
が弱められる。更に絶縁性記録体３を回転させ記
録部へ搬送させると、残留した磁性トナーは磁性
トナー現像機６内の磁気ローラ５の磁力によつて
回収される。 FIG. 6 shows the overall configuration of the recording apparatus, and the symbols 1, 3, 4, 6, and 7 in the figure correspond to those in FIG. 4. The insulating recording material 3 is made of a dielectric film formed into a belt and rotated at a constant speed by rollers 8, 9, and 10. The tip of the recording electrode 1 is placed in contact with the inside of the insulating recording body 3. Further, a magnetic toner developing device 6 having a counter electrode 7 on the surface of the cylindrical sleeve 4 is installed facing the recording electrode 1. As explained with reference to FIGS. 4 and 5, after forming a toner image on the insulating recording medium 3, the insulating recording medium 3 is rotated and the recording paper 12 is placed on the grounded roller 9. The toner image is transferred to the recording paper 12 by conveying it parallel to the insulating recording material 3 and using the transfer roller 13 from the back side.
Transfer to. Thereafter, the transferred image on the recording paper 12 is fixed to the recording paper 12 by a fixing device 14. On the other hand, the insulating recording body 3 is further rotated, and at the portion where the corona static eliminators 16 and 17 are arranged facing each other on both sides of the insulating recording body 3, alternating voltages having different phases are applied to the respective corona static eliminators. When the magnetic toner is added, the charge of the magnetic toner remaining on the insulating recording medium 3 is erased, and the force with which the magnetic toner adheres to the insulating recording medium 3 is weakened. When the insulating recording medium 3 is further rotated and conveyed to the recording section, the remaining magnetic toner is collected by the magnetic force of the magnetic roller 5 in the magnetic toner developing device 6.
以上の如く記録プロセスが繰り返されて画像出
力が行われるものであり、このような記録装置は
記録電極による潜像形成工程と現像機による現像
工程を同時に行なつているために、フアクシミリ
等の出力装置としては装置構成が簡単になり、小
型、低価格になる利点を持つている。また磁性ト
ナーを使用して、転写未了のトナーをクリーニン
グすることなく現像機に回収して再使用できるた
めに、メンテナンスが容易で消耗品価格が安価と
なる利点を持つている。 As described above, the recording process is repeated to output an image, and since such a recording device simultaneously performs the latent image formation process by the recording electrode and the development process by the developing machine, the output of a facsimile etc. The device has the advantage of being simpler in configuration, smaller in size, and lower in price. Furthermore, since magnetic toner is used, untransferred toner can be collected in a developing machine and reused without cleaning, which has the advantage of easy maintenance and low prices for consumables.
ところで、かかる記録装置では、トナー現像機
６の磁気ローラ５の回転のみで磁性トナーの搬送
を行なつている。このため、磁性トナーの穂の立
ち具合により、画質欠落を起こす。
Incidentally, in such a recording apparatus, magnetic toner is conveyed only by rotation of the magnetic roller 5 of the toner developing device 6. For this reason, image quality may be degraded depending on how the magnetic toner spikes stand.
この理由は、磁気ローラが回転し記録電極と、
磁気ローラの磁極間が相対した場合トナーは直立
せず、円筒スリーブ上に寝た形となるため、トナ
ーの先端が絶縁性記録体に十分接触せず最悪の場
合、この状態で画像欠落を起こすからである。 The reason for this is that the magnetic roller rotates and the recording electrode
If the magnetic poles of the magnetic roller are opposed to each other, the toner will not stand upright, but will lie down on the cylindrical sleeve, so the tip of the toner will not make sufficient contact with the insulating recording material, and in the worst case, this will cause image loss. It is from.
この防止策として、電極の先端部でかつ記録針
の近傍に磁性材を設けることが有効であり、かか
る構成については特願昭60−156909号において、
先に発明者等が提案した。 As a preventive measure, it is effective to provide a magnetic material at the tip of the electrode and near the recording needle, and such a configuration is described in Japanese Patent Application No. 156909/1982.
This was first proposed by the inventors.
第７図はその基本的構成である。本図に示した
ように、記録電極針２の片側のみに磁性材５２を
設けた場合、記録電極針２から磁性材５２のエツ
ジまでの距離l1′および記録電極針２の先端から磁
性材５２のエツジまでの距離l2′は小さくしないと
充分な磁力線が得られない。このため、磁性材の
取り付け位置の許容度は小さく、製造上の自由度
が制限されるという問題がある。 Figure 7 shows its basic configuration. As shown in this figure, when the magnetic material 52 is provided only on one side of the recording electrode needle 2, the distance l 1 ' from the recording electrode needle 2 to the edge of the magnetic material 52 and the distance from the tip of the recording electrode needle 2 to the magnetic material 52 are Sufficient lines of magnetic force cannot be obtained unless the distance l 2 ' to the edge of 52 is made small. For this reason, there is a problem in that the tolerance of the attachment position of the magnetic material is small, and the degree of freedom in manufacturing is restricted.
〔問題点を解決するための手段〕
本発明においては、記録電極に設置する磁性材
の取り付け位置に対する自由度を大きくするため
に、記録電極の電極針の両側に磁性材を取り付け
たものである。[Means for solving the problem] In the present invention, magnetic materials are attached to both sides of the electrode needle of the recording electrode in order to increase the degree of freedom regarding the attachment position of the magnetic material installed on the recording electrode. .
磁性体の磁力線が多くなるため、取付位置に対
する自由度はそれだけ大きくなる。
Since the number of lines of magnetic force in the magnetic body increases, the degree of freedom regarding the mounting position increases accordingly.
本発明の一実施例を第１図に示す。本実施例で
は、記録電極針２を固定しているガラスエポキシ
樹脂等からなるモールド部材５１の一部を削り落
し、その位置に磁性材を取り付けている。磁性材
には、厚さ１mmの電磁軟鉄板を使用し、磁性材５
２の幅l1を６mm、磁性材５３の幅を４mmとし、記
録電極針２と磁性材５２，５３のエツジ間距離
l1′、l2′を両方とも１mmとした。
An embodiment of the present invention is shown in FIG. In this embodiment, a part of the mold member 51 made of glass epoxy resin or the like that fixes the recording electrode needle 2 is shaved off, and a magnetic material is attached at that position. For the magnetic material, an electromagnetic soft iron plate with a thickness of 1 mm is used, and the magnetic material 5
The width l1 of 2 is 6 mm, the width of the magnetic material 53 is 4 mm, and the distance between the recording electrode needle 2 and the edges of the magnetic materials 52 and 53 is
Both l 1 ′ and l 2 ′ were 1 mm.
出力画像により評価したところ、磁性材を片側
のみに取り付けた場合、すなわち、磁性材５３が
ない場合には、画像の欠落が時々あるが、本実施
例の場合、画像の欠落が認められなかつた。さら
に、磁性材５３の幅l2を２mm、６mmとして出力画
像により評価を行つたところ、わずかに画像の欠
落が認められた。これより、磁性材５３の幅は、
ある程度広くなければならないことがわかる。ま
た、磁性材５３の幅は、磁性材５２と同じ幅とす
ると、磁気ローラ５の磁極の中間点が、記録電極
針２に正対する位置となつた場合、磁性材５２，
５３の記録電極針２に近い方のエツジ部より、記
録電極針２に対称な分布の互いに逆極性の磁界が
発生する。このため、記録電極針２付近の磁界
は、互いに打ち消し合い、トナーの穂が立ちにく
くなる。このような理由により、磁性材５３は磁
性材５２と同じ幅より、磁性材５２の幅に対し、
磁性材５３の幅l2は1/2〜3/4程度の方が画質が良
くなる
。磁性材５２，５３の幅の比と画質との関係を
第２図に示す。 When the output image was evaluated, when the magnetic material was attached only to one side, that is, when there was no magnetic material 53, there was sometimes image loss, but in the case of this example, no image loss was observed. . Furthermore, when the width l 2 of the magnetic material 53 was set to 2 mm and 6 mm, and the output image was evaluated, a slight loss of the image was observed. From this, the width of the magnetic material 53 is
It turns out that it has to be somewhat wide. Further, assuming that the width of the magnetic material 53 is the same as that of the magnetic material 52, when the midpoint of the magnetic poles of the magnetic roller 5 is in a position directly facing the recording electrode needle 2, the magnetic material 52,
From the edge portion of the recording electrode needle 53 closer to the recording electrode needle 2, magnetic fields having a symmetrical distribution and opposite polarities are generated in the recording electrode needle 2. Therefore, the magnetic fields near the recording electrode needle 2 cancel each other out, making it difficult for the toner to stand up. For these reasons, the magnetic material 53 has a width that is smaller than the width of the magnetic material 52, rather than the same width as the magnetic material 52.
The image quality will be better if the width l2 of the magnetic material 53 is about 1/2 to 3/4. FIG. 2 shows the relationship between the width ratio of the magnetic materials 52 and 53 and image quality.
第２図では、横軸は磁性材５２，５３の幅の
比、縦軸はベタ画像の平均濃度を表している。画
像欠落を定量的に評価するために、画像欠落があ
ると、ベタ画像の平均濃度が下がることを利用し
た。第２図に示すように、磁性材５２，５３の幅
の比が１／２〜２／３でピーク濃度となり、磁性
材５２，５３の幅の比が、１に近づくと濃度が下
がる。画像欠落が発生することにより、平均濃度
が下がる。画像欠落は、磁性材５２，５３の幅の
比が１／３以上、５／６以下で発生しない。 In FIG. 2, the horizontal axis represents the ratio of the widths of the magnetic materials 52 and 53, and the vertical axis represents the average density of the solid image. In order to quantitatively evaluate image loss, we utilized the fact that the average density of a solid image decreases when there is image loss. As shown in FIG. 2, the concentration reaches a peak when the width ratio of the magnetic materials 52 and 53 is 1/2 to 2/3, and the concentration decreases as the width ratio of the magnetic materials 52 and 53 approaches 1. The average density decreases due to the occurrence of image loss. Image loss does not occur when the width ratio of the magnetic materials 52 and 53 is 1/3 or more and 5/6 or less.
第３図は本発明の他の実施例を示すもので、第
１図と異なるのは、磁性材５２，５３を記録電極
１中にモールドした点である。 FIG. 3 shows another embodiment of the present invention, which differs from FIG. 1 in that magnetic materials 52 and 53 are molded into the recording electrode 1.
参照番号は第１図図示のものと同様である。 Reference numbers are the same as those shown in FIG.
この実施例における利点は、磁性材５２を片側
のみにモールドした場合、モールド部材５１と磁
性材５２との熱膨張率の相違により、記録電極１
が湾曲する可能性があるが、記録電極の両側に磁
性材５２，５３を設けることにより、湾曲を防止
できる。 The advantage of this embodiment is that when the magnetic material 52 is molded only on one side, the recording electrode 1
However, by providing magnetic materials 52 and 53 on both sides of the recording electrode, this can be prevented.
本発明によれば、記録電極の片側のみに磁性体
を設けた場合より、磁性体による画質の向上の効
果が大きいので、磁性体の取り付け位置の自由度
を大きくできる効果がある。また、磁性材を電極
中にモールドした場合、電極をモールド形成する
ときに両側に磁性材が設けられているので湾曲を
防止する効果がある。
According to the present invention, the effect of improving image quality due to the magnetic material is greater than when the magnetic material is provided on only one side of the recording electrode, so there is an effect that the degree of freedom in the attachment position of the magnetic material can be increased. Further, when a magnetic material is molded into the electrode, since the magnetic material is provided on both sides when molding the electrode, there is an effect of preventing curvature.
第１図、第３図は本発明の一実施例を示す図、
第２図は本発明を説明するための図、第４図は本
発明が関与する静電記録装置の記録部構成図、第
５図は静電記録の原理を説明するための図、第６
図は本発明が関与する静電記録装置の全体を表わ
す図、第７図は従来例を示す図である。
図において、２は記録電極針、５１はモールド
部材、５２，５３は磁性材を示す。
FIGS. 1 and 3 are diagrams showing an embodiment of the present invention,
FIG. 2 is a diagram for explaining the present invention, FIG. 4 is a configuration diagram of a recording section of an electrostatic recording apparatus to which the present invention relates, FIG. 5 is a diagram for explaining the principle of electrostatic recording, and FIG. 6 is a diagram for explaining the principle of electrostatic recording.
The figure shows the entirety of an electrostatic recording device to which the present invention relates, and FIG. 7 shows a conventional example. In the figure, 2 represents a recording electrode needle, 51 represents a mold member, and 52 and 53 represent magnetic materials.
Claims (1)
像機が対向配置され、かつ磁性トナー現像機の磁
気ローラを内包するスリーブ上に、上記記録電極
に対向して複数のセグメントに分割された対向電
極が配置され、上記記録電極と上記対向電極間に
選択的に電圧を印加して上記絶縁性記録体にトナ
ー像を形成せしめた後に上記トナー像を記録紙に
転写すると共に、上記絶縁性記録体に残留した磁
性トナーの電荷を除去し、残留した磁性トナーを
上記磁性トナー現像機の磁力により回収しつつ繰
り返し記録を行なう記録装置の上記記録電極の先
端部で、かつ記録電極を構成する記録電極針に近
接する位置に磁性材を設けた構造において、前記
磁性材を電極針の両側に設けることを特徴とする
静電記録装置。 ２ 前記両側に設けられた磁性材の幅を、一方の
幅を他方の幅の1/3から5/6とすることを特徴とす
る特許請求の範囲第１項記載の静電記録装置。[Scope of Claims] 1. A recording electrode and a magnetic toner developing device are disposed facing each other with an insulating recording member interposed therebetween, and a plurality of segments are arranged opposite to the recording electrode on a sleeve containing a magnetic roller of the magnetic toner developing device. A counter electrode divided into two is disposed, and a voltage is selectively applied between the recording electrode and the counter electrode to form a toner image on the insulating recording body, and then the toner image is transferred to recording paper. , at the tip of the recording electrode of a recording device that repeatedly performs recording while removing the charge of the magnetic toner remaining on the insulating recording body and collecting the remaining magnetic toner by the magnetic force of the magnetic toner developing machine; An electrostatic recording device characterized in that a magnetic material is provided at a position close to a recording electrode needle constituting an electrode, and the magnetic material is provided on both sides of the electrode needle. 2. The electrostatic recording device according to claim 1, wherein the width of the magnetic material provided on both sides is 1/3 to 5/6 of the width of the other.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60213125A JPS6271659A (en) | 1985-09-25 | 1985-09-25 | Electrostatic recorder |
| KR1019860005525A KR900005647B1 (en) | 1985-07-18 | 1986-07-09 | Electrostatic recording apparatus with improved recording electrode |
| US06/886,474 US4734720A (en) | 1985-07-18 | 1986-07-17 | Electrostatic recording apparatus with improved recording electrode |
| DE8686109916T DE3671115D1 (en) | 1985-07-18 | 1986-07-18 | ELECTROSTATIC RECORDING DEVICE AND RECORDING ELECTRODES THEREFOR. |
| EP86109916A EP0209159B1 (en) | 1985-07-18 | 1986-07-18 | Electrostatic recording apparatus and recording electrode therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60213125A JPS6271659A (en) | 1985-09-25 | 1985-09-25 | Electrostatic recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6271659A JPS6271659A (en) | 1987-04-02 |
| JPH032069B2 true JPH032069B2 (en) | 1991-01-14 |
Family
ID=16633987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60213125A Granted JPS6271659A (en) | 1985-07-18 | 1985-09-25 | Electrostatic recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6271659A (en) |
-
1985
- 1985-09-25 JP JP60213125A patent/JPS6271659A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6271659A (en) | 1987-04-02 |
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