JPH04107588A - Magnetic printer - Google Patents
Magnetic printerInfo
- Publication number
- JPH04107588A JPH04107588A JP22768890A JP22768890A JPH04107588A JP H04107588 A JPH04107588 A JP H04107588A JP 22768890 A JP22768890 A JP 22768890A JP 22768890 A JP22768890 A JP 22768890A JP H04107588 A JPH04107588 A JP H04107588A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- liquid
- development
- developing material
- liquid developing
- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000006247 magnetic powder Substances 0.000 claims description 6
- 238000004043 dyeing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000011553 magnetic fluid Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000005653 Brownian motion process Effects 0.000 description 1
- IGOJDKCIHXGPTI-UHFFFAOYSA-N [P].[Co].[Ni] Chemical compound [P].[Co].[Ni] IGOJDKCIHXGPTI-UHFFFAOYSA-N 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229940090961 chromium dioxide Drugs 0.000 description 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 description 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はコンピューターの出力を紙面上に表わす磁気式
の印刷装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic printing device for displaying computer output on paper.
［従来技術］
従来の１気印刷装置は特開昭５４−３２３２８に開示さ
れるごとき、粉体の現像材を用いるものが一般的であり
、現像材に液体を用いるものはアイデアのみであり実現
されていない。より詳しく説明すると従来のものは第３
図に示す様な構造であり、磁気ヘッド３２で磁気潜像の
形成された磁気ドラム３１が液体現像材３５に接触し選
択的に磁気潜像部に液体現像材３５を付着させ紙３６に
転写させ記録を行なうものであった。[Prior Art] Conventional one-shot printing devices, as disclosed in Japanese Patent Application Laid-Open No. 54-32328, generally use a powder developing material, and the use of liquid as a developing material is only an idea and has not yet been realized. It has not been. To explain in more detail, the conventional method is the third
The structure is as shown in the figure, in which a magnetic drum 31 on which a magnetic latent image is formed by a magnetic head 32 contacts a liquid developer 35, selectively attaches the liquid developer 35 to the magnetic latent image portion, and transfers it to a paper 36. It was intended to be used for recording purposes.
［発明が解決しようとする課題］
しかし、前述のアイデアでは選択的に磁気潜像部に液体
現像材を付着させることは現実的にはうまくいかない、
その理由は、ここで用いる液体現像材は少なくとも磁性
粉が液中に存在することが当然の条件でありこのことを
考慮すると、磁性粉が液中に均一に存在しかつ長期間変
化がないという液体はいわゆる磁性流体と呼称されるも
のと同一である。磁性流体は磁性粉を液中に均−分散及
び維持するために界面活性材を用いてブラウン運動を生
じさせている。この為界面活性材の入った液体がドラム
に接触すると界面活性材の影響から多少選択性はでるも
ののほとんど接触面全面に付着してしまう、そこ−で本
発明はこの点を鑑みて改善を行なうものであり、その目
的とするところは磁気潜像部に選択的に液体現像材を付
着させることが可能な構成を提供するところにある。[Problems to be Solved by the Invention] However, with the above-mentioned idea, selectively attaching the liquid developer to the magnetic latent image area does not actually work.
The reason for this is that the liquid developing material used here must have at least magnetic powder present in the liquid. Considering this, it is assumed that the magnetic powder exists uniformly in the liquid and does not change over a long period of time. The liquid is the same as what is called a magnetic fluid. The magnetic fluid uses a surfactant to generate Brownian motion in order to uniformly disperse and maintain the magnetic powder in the liquid. For this reason, when a liquid containing a surfactant comes into contact with the drum, it adheres to almost the entire contact surface, although there is some selectivity due to the influence of the surfactant.The present invention takes this point into account and makes improvements. The object thereof is to provide a configuration that allows liquid developer to be selectively attached to the magnetic latent image area.
［課題を解決するための手段］
本発明の磁気印刷装置は磁気ドラムの回転方向に順次記
録部、現像部、転写部、クリーナー部、消磁部を有する
磁気印刷装置において前記磁気ドラムと現像器の間に多
孔質支持体を配置したことを特徴とする。[Means for Solving the Problems] A magnetic printing device of the present invention has a recording section, a developing section, a transfer section, a cleaner section, and a demagnetizing section sequentially in the rotational direction of the magnetic drum. It is characterized by having a porous support disposed between them.
本発明の磁気印刷装置は多孔質支持体に正（＋）又は負
（−）の電荷が印加されていることを特徴とする。The magnetic printing device of the present invention is characterized in that a positive (+) or negative (-) charge is applied to the porous support.
本発明の磁気印刷装置に用いる現像器の現像材は液体で
磁性粉及び染色材が添加されていることを特徴とする。The developing material of the developing device used in the magnetic printing apparatus of the present invention is characterized in that it is liquid and contains magnetic powder and a dyeing material.
［実施例］
第１図は本発明の磁気印刷装置の主要部の断面図であり
、第１図においてｌは磁気ドラム、２は磁気ヘッド、３
は多孔質支持体、４は現像器、５は液体現像剤、６は紙
、７は給紙ローラ、８は転写ローラ、９は紙送りローラ
、１０はクリーナ、１１は消磁器である。第１図に基づ
き印刷手順を説明すると磁気ドラム１に磁気ヘッド２で
磁気潜像を形成する。磁気ドラム１に設けられて−いる
磁性膜はＣｏ−Ｎ１−Ｐ（コバルトニッケルリン）。[Example] Fig. 1 is a cross-sectional view of the main parts of the magnetic printing apparatus of the present invention, in Fig. 1, l is a magnetic drum, 2 is a magnetic head, and 3
1 is a porous support, 4 is a developing device, 5 is a liquid developer, 6 is paper, 7 is a paper feed roller, 8 is a transfer roller, 9 is a paper feed roller, 10 is a cleaner, and 11 is a demagnetizer. The printing procedure will be explained based on FIG. 1. A magnetic latent image is formed on a magnetic drum 1 by a magnetic head 2. The magnetic film provided on the magnetic drum 1 is Co-N1-P (cobalt nickel phosphorus).
Ｃｏ−Ｎ１（コバルトニッケル）等のメツキ膜、又はＣ
ｒＯ２（二酸化クロム）、Ｆｅ２０３（酸化鉄）を樹脂
バインドした塗布膜を用いることが出来、磁気特性は保
磁力が２００〜９００エルステツド（Ｏｅ）の範囲で使
用できる。磁気潜像の形成された磁気ドラム１は回転し
現像工程に入る。現像工程をより詳しく説明するため第
２図に基づき説明する。第２図は第１図の現像部の拡大
図であり磁気ドラム１には電荷により***した液体現像
材１４のみが接触し現像が行なわれる。この時、非潜像
部に僅か液体現像材が接触してもほとんど付着すること
はない、この理由は図示するように液体現像材には電荷
（２００〜６００Ｖ）が付与されており、液体現像材１
４は液′体現偉材とは反対の電荷が印加されている多孔
質支持体３に吸引される。この為非画像部に瞬間的に液
体現像材が付着しても、この静電吸引力により非画像部
に残らない。従って磁気吸引力の存在する磁気潜像部の
み液体現像材が付着し鮮明な可視像１３ができる。Plating film such as Co-N1 (cobalt nickel), or C
A coating film in which rO2 (chromium dioxide) and Fe203 (iron oxide) are resin-bound can be used, and the magnetic properties can be used in a range of coercive force from 200 to 900 Oe. The magnetic drum 1 on which the magnetic latent image has been formed rotates and enters a developing process. In order to explain the developing process in more detail, it will be explained based on FIG. 2. FIG. 2 is an enlarged view of the developing section shown in FIG. 1, in which only the liquid developer material 14 raised due to electric charges comes into contact with the magnetic drum 1 to perform development. At this time, even if a small amount of liquid developer comes into contact with the non-latent image area, it hardly sticks.The reason for this is that as shown in the figure, the liquid developer is charged with an electric charge (200 to 600 V), and the liquid developer Material 1
4 is attracted to the porous support 3 to which a charge opposite to that of the liquid embodying material is applied. Therefore, even if the liquid developer momentarily adheres to the non-image area, it will not remain there due to the electrostatic attraction force. Therefore, the liquid developer adheres only to the magnetic latent image area where the magnetic attraction force exists, and a clear visible image 13 is formed.
ここで更に液体現像材と多孔質支持体について説明する
。液体現像材は先にも述べた様に主に磁性粉と染色材が
添加され構成されているが、そのほかには電荷を付与す
る為電気抵抗が１０９Ω・Ｃｍ以上であることが必要で
ある。多孔質支持体はセラミックス、樹脂、金属等の材
質が可能で多孔質波は１０〜５００メツシユの範囲が良
好である。Here, the liquid developing material and the porous support will be further explained. As mentioned above, the liquid developing material is mainly composed of magnetic powder and dyeing material added, but in addition to that, it is necessary to have an electrical resistance of 10 9 Ω·Cm or more in order to impart an electric charge. The porous support can be made of ceramics, resin, metal, etc., and the porous wave preferably has a mesh size of 10 to 500 meshes.
これ等の様に現像工程が終了する。再度第１図に戻り印
刷手順を説明する。前述したように現像工程終了後、磁
気ドラム１面上には可視像が形成されており転写工程に
入る。給紙ローラ７で紙６は送られ転写ローラ８で磁気
ドラム１と紙６は圧接される。この時可視像は紙６に浸
透し転写が終了する。この転写工程は他の方法として紙
に電荷を与え静電転写することも可能である。転写工程
終了後紙６は紙送りローラ９で搬送し印刷を終了させる
。一方磁気ドラムｌはクリーナー１０で表面をクリーニ
ングされ、消磁器１１で磁気潜像を消去し一連の工程を
終る。ここで消磁器についてつけ加えると消磁器は電磁
石又は永久磁石で構成されており、印刷物の同一のもの
を再度印刷するときは磁気潜像を消去する必要がないた
め、電磁石の場合は電流を流さず、永久磁石の場合は磁
気ドラムから磁気潜像に影響を与えない位置まで永久磁
石をスライドさせる構造となっている。The developing process is completed in this manner. Returning to FIG. 1 again, the printing procedure will be explained. As described above, after the development process is completed, a visible image is formed on the surface of the magnetic drum 1, and the transfer process begins. A paper feed roller 7 feeds the paper 6, and a transfer roller 8 presses the magnetic drum 1 and the paper 6 into contact. At this time, the visible image permeates the paper 6 and the transfer is completed. This transfer step can also be performed by applying an electric charge to the paper and performing electrostatic transfer. After the transfer process is completed, the paper 6 is conveyed by a paper feed roller 9 to complete printing. On the other hand, the surface of the magnetic drum l is cleaned by a cleaner 10, and the magnetic latent image is erased by a demagnetizer 11, thereby completing a series of steps. An additional note about demagnetizers is that demagnetizers are composed of electromagnets or permanent magnets, and when reprinting the same printed material, there is no need to erase the magnetic latent image, so in the case of an electromagnet, no current is applied. In the case of a permanent magnet, the structure is such that the permanent magnet is slid from the magnetic drum to a position where it does not affect the magnetic latent image.
［発明の効果］
以上述べた様に本発明によれば磁気印刷装置において磁
気ドラムと現像器の間に多孔質支持体を配置し電荷を印
加することで液体現像材を用いた現像が実現可能という
効果を有する。[Effects of the Invention] As described above, according to the present invention, development using a liquid developing material can be realized by arranging a porous support between a magnetic drum and a developing device in a magnetic printing device and applying an electric charge. It has this effect.
他の効果としては本来磁気潜像は磁気メモリ分野でも実
現されるごとき高密度記録が容易にでき高印字品質化が
可能なベースはできていたが、従来は粉体の現像材（粒
径〜７μｍ）Ｌか使えなかった為高密度潜像を有効に生
かすことが出来ず、高印字品質化に限界があったが液体
現像材（粒径１μｍ以下）が使えることで高印字品質化
も可能という効果もある。Another effect is that magnetic latent images originally facilitated high-density recording, which was also realized in the field of magnetic memory, and provided the basis for high print quality. 7μm) L could not be used, so the high-density latent image could not be used effectively, and there was a limit to high print quality.However, by using liquid developer (particle size of 1μm or less), high print quality is possible. There is also this effect.
第１図は本発明の磁気印刷装置の主要断面図。 第２図は本発明の一実施例を示す現像部の断面図。 第３図は従来の磁気印刷装置の断面図。 １．３１・・・・・・磁気ドラム ２．３２・・・・・・磁気ヘッド ３・・・・・・・・・多孔質支持体 ４．３４・・・・・・現像器 ５．１５．３５・・・液体現像材 ６．３６・・・・・・紙 ７．３７・・・・・・給紙ローラ ８．３８・・・・・・転写ローラ ９・・・・・・・・・紙送りローラ ・・クリーナ ・・消磁器 ・電荷印加用配線 ・・可視像 出願人セイコーエプソン株式会社 FIG. 1 is a main cross-sectional view of the magnetic printing apparatus of the present invention. FIG. 2 is a sectional view of a developing section showing an embodiment of the present invention. FIG. 3 is a sectional view of a conventional magnetic printing device. 1.31・・・Magnetic drum 2.32...Magnetic head 3...Porous support 4.34...Developer 5.15.35...Liquid developing material 6.36...Paper 7.37...Paper feed roller 8.38...Transfer roller 9...Paper feed roller ・・Cleaner ・・Demagnetizer ・Wiring for charge application ・Visible image Applicant Seiko Epson Corporation
Claims (3)
転写部、クリーナー部、消磁部を有す磁気印刷装置にお
いて、前記磁気ドラムと現像器の間に多孔質支持体を配
置したことを特徴とする磁気印刷装置。(1) In the rotating direction of the magnetic drum, a recording section, a developing section,
What is claimed is: 1. A magnetic printing device having a transfer section, a cleaner section, and a demagnetizing section, characterized in that a porous support is disposed between the magnetic drum and the developing device.
が印加されていることを特徴とする請求項（１）記載の
磁気印刷装置。(2) The magnetic printing device according to claim (1), wherein a positive (+) or negative (-) charge is applied to the porous support.
染色材が添加されていることを特徴とする請求項（１）
記載の磁気印刷装置。(3) Claim (1) characterized in that the developing material used in the developing device is a liquid and contains magnetic powder and a dyeing material.
Magnetic printing device as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22768890A JPH04107588A (en) | 1990-08-29 | 1990-08-29 | Magnetic printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22768890A JPH04107588A (en) | 1990-08-29 | 1990-08-29 | Magnetic printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04107588A true JPH04107588A (en) | 1992-04-09 |
Family
ID=16864782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22768890A Pending JPH04107588A (en) | 1990-08-29 | 1990-08-29 | Magnetic printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04107588A (en) |
-
1990
- 1990-08-29 JP JP22768890A patent/JPH04107588A/en active Pending
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