JPH01269972A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPH01269972A JPH01269972A JP9674888A JP9674888A JPH01269972A JP H01269972 A JPH01269972 A JP H01269972A JP 9674888 A JP9674888 A JP 9674888A JP 9674888 A JP9674888 A JP 9674888A JP H01269972 A JPH01269972 A JP H01269972A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- latent image
- magnetic field
- recording
- image
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000006247 magnetic powder Substances 0.000 claims description 2
- 239000002887 superconductor Substances 0.000 abstract description 14
- 239000000696 magnetic material Substances 0.000 abstract description 11
- 230000005298 paramagnetic effect Effects 0.000 abstract description 8
- 239000000843 powder Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 239000010409 thin film Substances 0.000 abstract description 5
- 230000005292 diamagnetic effect Effects 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 5
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000005408 paramagnetism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は超電導体を使用した画像形成装置、特に、超
電導体の磁場遮蔽効果を利用した磁気画像形成装置であ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an image forming apparatus using a superconductor, and particularly to a magnetic image forming apparatus using the magnetic field shielding effect of a superconductor.
［従来の技術］
従来、磁場利用の画像形成装置は、大別して二通りあり
、第一の装置は磁性体からなる記録体を磁気ヘッドによ
り画像情報に従って磁化して磁気潜像を形成し、次いで
内部に磁性体を有するか、あるいは磁性体からなる微粉
末を記録体へ付与することによって磁気潜像の顕像化を
行い、更に最終支持体へ、この粉体像を転写し、更には
圧力、熱、などによって定着することによって画像を得
るものである。[Prior Art] Conventionally, there are two types of image forming apparatuses that utilize a magnetic field.The first apparatus magnetizes a recording body made of a magnetic material with a magnetic head according to image information to form a magnetic latent image; A magnetic latent image is visualized by applying fine powder that has a magnetic material inside or is made of a magnetic material to a recording medium, and then transfers this powder image to a final support, and then applies pressure. An image is obtained by fixing with , heat, etc.
第２の装置として、強磁性体がキューリー温度以上では
常磁性状態となり、この状態から冷却されるとき外部か
ら磁気ヘッドにて磁場を画像情報に同調させて印加して
記録を行うか、または記録材の全体を磁化した後に、画
像情報に従ってキューリー温度まで部分的に加熱して記
録を行う熱磁気記録装置がある。As a second device, the ferromagnetic material becomes a paramagnetic state when it is above the Curie temperature, and when it is cooled from this state, a magnetic field is applied externally using a magnetic head in synchronization with the image information to perform recording, or There is a thermomagnetic recording device that performs recording by magnetizing the entire material and then heating it partially to the Curie temperature according to image information.
［発明が解決しようとする課題］
しかしながら、上記の従来例では記録体自体が本質的に
強磁性体であるため、画像消去用の磁気ヘッドを必要と
し、装置の構成が複雑化する。[Problems to be Solved by the Invention] However, in the conventional example described above, since the recording medium itself is essentially a ferromagnetic material, a magnetic head for image erasing is required, which complicates the configuration of the apparatus.
記録に磁気ヘッドを使用するために、高密度化した記録
用ヘッドが必要であり、装置化が困難である。Since a magnetic head is used for recording, a high-density recording head is required, which is difficult to implement.
通常、使用可能な強磁性材料のキューリー温度は１００
℃以上であって、記録に際しては、多大のエネルギーが
必要とされる。Usually, the Curie temperature of usable ferromagnetic materials is 100
℃ or higher, and a large amount of energy is required for recording.
［課題を解決するための手段］
この発明は、上記の従来品に見られる好ましくない点を
改善することを目的として提供する画像形成装置であり
、超電導物質の完全反磁性を利用し、超電導物質からな
る薄膜を選択的に加熱することによって外部磁場を選択
的に遮蔽し、磁気的潜像を形成させ、この潜像を磁性体
、または磁性体を含有する磁性体の微粉末を以て、顕像
化することにより可視画像を得る装置である。[Means for Solving the Problems] The present invention is an image forming apparatus provided for the purpose of improving the unfavorable points found in the above-mentioned conventional products. By selectively heating the thin film, external magnetic fields are selectively shielded to form a magnetic latent image, and this latent image is visualized using a magnetic material or fine powder of a magnetic material containing a magnetic material. This is a device that obtains visible images by converting images into visible images.
［実施例１］
第１図は、この発明の第一の実施例である画像形成装置
を示す、記号１は記録体を示し、アルミニウムなどの非
磁性の基体３０上に、ＮｂＴｉ、 Ｎｂ）Ｓｎなどの合
金か、化合物、あるいは、ＡＢＣＤ （Ａは、Ｌａ、
Ｃｅ％Ｐｒ、Ｎｄ％Ｐｍ、 Ｓｍ％Ｅｕ％Ｇｄｘ Ｔｂ
％ｐｙ、 Ｈｏ。[Example 1] FIG. 1 shows an image forming apparatus that is a first example of the present invention. Symbol 1 indicates a recording body, and NbTi, Nb)Sn, etc. are deposited on a non-magnetic substrate 30 such as aluminum. alloys, compounds, or ABCD (A is La,
Ce%Pr, Nd%Pm, Sm%Eu%Gdx Tb
%py, Ho.
Ｅｒ、 Ｔｍ、 Ｙｂ、 Ｌｕ％Ｙ ％Ｓｃ からな
る群から選択する一種以上の元素、Ｂは Ｇａｓ Ｓｒ
、Ｐｂ、およびＢａからなる群より選択する一種以上の
元素、Ｃは。One or more elements selected from the group consisting of Er, Tm, Yb, Lu%Y%Sc, B is Gas Sr
, Pb, and one or more elements selected from the group consisting of Ba.
■、Ｔｉ、 Ｃｒ％Ｍｎ、 Ｆｅ、 Ｎｉ％Ｃｏ、 Ａ
ｇ、 ｃｄ、 Ｃｕ１Ｚｒ、および ｌａｇからなる群
より選択する一種以上の元素、ＤはＳ１０、および Ｆ
からなる群より選択する一種以上の元素である。）によ
り、その組成が示される結晶などを含有する超電導体か
らなる厚さ０．５μ瓜以上、望ましくは、５μ以上の薄
膜２０が形成されているものである。■, Ti, Cr%Mn, Fe, Ni%Co, A
one or more elements selected from the group consisting of g, cd, Cu1Zr, and lag, D is S10, and F
One or more elements selected from the group consisting of. ), a thin film 20 of a thickness of 0.5 μm or more, preferably 5 μm or more is formed of a superconductor containing crystals or the like whose composition is shown.
また、基体３０となるアルミニウム箔の厚さは５０〜２
００ｕの厚さである。Further, the thickness of the aluminum foil serving as the base 30 is 50 to 2
The thickness is 00u.
記号りは、上記の記録体１の超電導体薄層を画像情報に
従って加熱するための赤外線レーザーなどの露光および
感熱ヘッドなどの書込み手段を示す。The symbol indicates an exposure means such as an infrared laser and a writing means such as a thermal head for heating the superconductor thin layer of the recording body 1 according to image information.
記号２は永久磁石、電磁石などの磁場発生手段を示し、
記号３は書込み手段りと磁場発生手段２により記録体１
上に生成させられた磁気潜像を顕像化する現像器を示し
、記号４は現像スリーブを、記号５は内部に磁性体を含
有するか、または磁性体単体からなる現像剤を示し、記
号６は現像対向磁極を、記号７は紙、プラスチックフィ
ルムなどの画像最終支持体を、記号８は転写ローラーを
、記号９は記録体１表面のクリーナーを、記号ＩＯは冷
却装置を示す。Symbol 2 indicates a magnetic field generating means such as a permanent magnet or an electromagnet.
Symbol 3 indicates the recording medium 1 by the writing means and the magnetic field generating means 2.
The symbol 4 indicates a developing sleeve, and the symbol 5 indicates a developer that contains a magnetic material inside or is made of a single magnetic material. Reference numeral 6 indicates a developing magnetic pole, symbol 7 indicates an image final support such as paper or plastic film, symbol 8 indicates a transfer roller, symbol 9 indicates a cleaner for the surface of the recording medium 1, and symbol IO indicates a cooling device.
次に、この発明の記録方式の原理を、第２図によって説
明する。Next, the principle of the recording method of this invention will be explained with reference to FIG.
近接した一対の磁極の間に形成される磁場中に常伝導体
１７、および超電導体１２が置かれた場合の磁力線！４
の状態を第２図が示している。Lines of magnetic force when normal conductor 17 and superconductor 12 are placed in a magnetic field formed between a pair of adjacent magnetic poles! 4
FIG. 2 shows this state.
第２図（ａ）のように、常伝導体１７が磁場内に置かれ
た場合には、磁力線１４はこの常伝導体１７内部へ入り
込み、これを貫通する。As shown in FIG. 2(a), when the normal conductor 17 is placed in a magnetic field, the lines of magnetic force 14 enter into the normal conductor 17 and pass through it.
即ち、何ら磁場には変化が生じない。That is, no change occurs in the magnetic field.
しかし、第２図（ｂ）に示すように超電導状態にある物
質、超電導体１２が磁場内に置かれた場合、超電導体１
２表面に、外部磁界の磁束が侵入しないように、磁束に
均衡して磁束を零とする分布と大きさの反磁性的超電導
電流が流れて図示の通り磁力線は屈曲させられて磁場は
影響を受ける。However, as shown in FIG. 2(b), when a superconductor 12, a substance in a superconducting state, is placed in a magnetic field, the superconductor 1
2. In order to prevent the magnetic flux from the external magnetic field from penetrating, a diamagnetic superconducting current flows on the surface with a distribution and magnitude that is balanced with the magnetic flux and makes the magnetic flux zero, and as shown in the figure, the lines of magnetic force are bent and the magnetic field is no longer affected. receive.
更に、第２図（ｃ）のように、薄板状の超電導体５の一
部が加熱され、転移温度以上にされた場合は、その斜線
部以外の部分１６は、常伝導体となり他の斜線部の部分
１２は超電導状態のままとなる。Furthermore, as shown in FIG. 2(c), when a part of the thin plate-shaped superconductor 5 is heated to a temperature higher than the transition temperature, the portion 16 other than the shaded area becomes a normal conductor and the other shaded areas become normal conductors. The portion 12 remains superconducting.
このとき、超電導状態である部分１２は、磁力線１４が
貫通できないために図示の通り常伝導体の部分を選択的
に通過することとなる。At this time, since the magnetic lines of force 14 cannot pass through the superconducting portion 12, they selectively pass through the normal conducting portion as shown.
即ち、常伝導体部分の通過磁束の密度が大幅に増大する
こととなる。That is, the density of magnetic flux passing through the normal conductor portion increases significantly.
再び、第１図によって、前述の原理に基く画像形成装置
の動作を説明する。。Again, referring to FIG. 1, the operation of the image forming apparatus based on the above-mentioned principle will be explained. .
まず、超電導体からなる記録体ｌは、冷却手段ｌＯによ
って臨界温度Ｔｃ以下に冷却され、超電導状態となる。First, the recording body l made of a superconductor is cooled down to a critical temperature Tc or lower by the cooling means lO, and becomes a superconducting state.
次いで、矢印爪方向に回転して、加熱手段りによりＴｃ
よりも高い温度まで画像情報に従い部分的に昇温させら
れる。Then, it is rotated in the direction of the arrow claw and Tc is heated by the heating means.
The temperature is partially raised to a higher temperature according to the image information.
これによって、記録体１上には、反磁性部分と常磁性部
分からなる磁気的潜像が形成される。As a result, a magnetic latent image consisting of a diamagnetic portion and a paramagnetic portion is formed on the recording medium 1.
次に、この潜像は記録体１の回転により移行を続けて磁
場発生手段２前面において、常磁性部分のみが磁力線を
通過させるため、この常磁性部分に磁性体を有する現像
剤５が吸着されて、顕像が形成される。Next, this latent image continues to move as the recording body 1 rotates, and only the paramagnetic part allows the lines of magnetic force to pass through the front surface of the magnetic field generating means 2, so that the developer 5 having a magnetic substance is attracted to this paramagnetic part. A visible image is formed.
次に、顕像化された記録体１上の現像剤は転写手段８に
より最終支持体７へ圧力、または現像剤５が静電的に帯
電もしている粒子であれば電界によって転写される。Next, the developed developer on the recording medium 1 is transferred by the transfer means 8 to the final support 7 by pressure or by an electric field if the developer 5 is an electrostatically charged particle.
次に転写された現像剤は、定着手段１１において圧力、
熱、溶剤、粘着剤などによって最終支持体７に永久的に
固着され記録が終了する。Next, the transferred developer is applied with pressure in the fixing means 11.
It is permanently fixed to the final support 7 by heat, solvent, adhesive, etc., and recording is completed.
転写が終了した記録体１は、クリーナーによりその表面
が清掃され、引続き再び、冷却部材１０により超電導状
態にされて、次の画像形成に備えることとなる。After the transfer has been completed, the surface of the recording medium 1 is cleaned by a cleaner, and then the cooling member 10 brings the recording medium 1 into a superconducting state again in preparation for the next image formation.
以下、この発明に使用する各部材について詳述する。Each member used in this invention will be described in detail below.
記録体１は前述の材料を使用することができるが、この
発明の主旨によっても明確であるように超電導体が有す
る臨界温度前後の相の違いを利用した装置であるから、
特に、超電導材料に限定は必要ではない。The recording body 1 can use the above-mentioned materials, but as is clear from the gist of the present invention, since it is a device that utilizes the difference in phase of a superconductor before and after the critical temperature,
In particular, there is no need to limit the superconducting material.
しかし、より室温に近い温度領域にて超電導性を示す部
材が、冷却手段の負担を軽減するために好ましいことは
勿論である。However, it goes without saying that a member exhibiting superconductivity in a temperature range closer to room temperature is preferable in order to reduce the burden on the cooling means.
超電導性薄膜の形成方法としては、真空蒸着、マグネト
ロンスパッタリング、クラスターイオンビーム蒸着など
の方法が利用可能である。As a method for forming a superconducting thin film, methods such as vacuum evaporation, magnetron sputtering, and cluster ion beam evaporation can be used.
形成される膜の厚さは、超電導体の表面電流が流れる層
までは磁界が侵入するのであるために、この層の厚さよ
りも充分に厚いことが必要であり０．５μｍ以上、望ま
しくは５μ以上であればよい。The thickness of the formed film needs to be sufficiently thicker than the layer where the surface current of the superconductor flows, since the magnetic field penetrates this layer, and is preferably 0.5 μm or more, preferably 5 μm. Any above is sufficient.
次に、磁界を発生する磁石について言及すれば公知のγ
フェライト、バリウムフェライト、アルニコ、四三酸化
鉄などからなる永久磁石の他に、実施例２については、
電磁石使用も可能である。Next, referring to the magnet that generates a magnetic field, the well-known γ
In addition to permanent magnets made of ferrite, barium ferrite, alnico, triiron tetroxide, etc., for Example 2,
It is also possible to use electromagnets.
使用するマグネットの磁界の強さは、前述の超電導材料
の臨界磁界を越えないよう設定されるべきである。The strength of the magnetic field of the magnet used should be set so as not to exceed the critical magnetic field of the superconducting material mentioned above.
次に、得られた磁気的潜像を顕像化する粉体について述
べるならば、前述の永久磁石に使用した磁性体、または
これら磁性体を樹脂などのバインダー中に分散させた後
に、粉砕した微粉末を使用することが可能である。Next, regarding the powder that visualizes the obtained magnetic latent image, the magnetic material used in the above-mentioned permanent magnet, or the powder obtained by dispersing these magnetic materials in a binder such as resin and then pulverizing them. It is possible to use fine powder.
微粉末の粒径は形成する磁気潜像の最小ドツト径よりも
小さければよいのであり、望ましくはその騒以下である
。It is sufficient that the particle size of the fine powder is smaller than the minimum dot size of the magnetic latent image to be formed, and preferably smaller than the minimum dot size.
通常、粒径としては１〜１５−の範囲内にあればよい。Generally, the particle size may be within the range of 1 to 15-15.
また、必要に応じて、荷電制御剤、カーボンブラック、
染料、顔料などを混入したものでもよい。In addition, charge control agents, carbon black,
It may also contain dyes, pigments, etc.
現像方法としては、マグネットブラック法、ファーブラ
ック法などを使用することも可能である。As a developing method, it is also possible to use a magnet black method, a fur black method, or the like.
［実施例２］
実施例１は、記録体１が円筒状の定型体である記録装置
の場合であるが、第３図に示すように、実施例２の装置
では記録体１゛をベルト状としてベルト状基体３０にポ
リエステルなどの透明樹脂を使用して、記録体１の基体
３０側から加熱手段りによって透明樹脂層を透過して画
像情報を記録し、更に加えて、冷却部材ＩＯも同様に基
体３０側に設置して超電導性薄膜を再活性化することを
可能としている。[Example 2] Example 1 is a case of a recording apparatus in which the recording medium 1 is a cylindrical regular body, but as shown in FIG. A transparent resin such as polyester is used for the belt-like base 30, and image information is recorded by passing through the transparent resin layer from the base 30 side of the recording body 1 by heating means, and in addition, the cooling member IO is also used in the same manner. It is possible to reactivate the superconducting thin film by installing it on the base 30 side.
この超電導薄層２０上に保護層としても機能する白色な
ど所望の色彩の塗料層４０を設けて、黒色トナーなどの
所望の色彩のトナーを使用して現像することにより、デ
イスプレー用装置として有用な装置が構成されている。A paint layer 40 of a desired color such as white, which also functions as a protective layer, is provided on this superconducting thin layer 20 and developed using a toner of a desired color such as black toner, thereby making it useful as a display device. A device is configured.
また、これらの実施例では、記録体１と、磁場発生手段
は、別途に設けられているが、これらが一体化されて、
実施例１に示される基体３０自体がマグネットからなる
ものを使用することとすれば装置は簡略化される。Further, in these embodiments, the recording body 1 and the magnetic field generating means are provided separately, but they are integrated,
If the base body 30 itself shown in Example 1 is made of a magnet, the apparatus will be simplified.
［発明の効果］
この発明の装置においては、超電導体を使用して磁界を
遮蔽し、また、磁束の貫通の程度を光線乃至、熱線を使
用し、これらを調整して、磁気的潜像を形成させるので
あり、他方式の磁気的潜像形成装置の如く、微小精緻な
磁気ヘッドを必要とすることがなく、大面積を有する記
録体による記録が可能であり容易である。[Effect of the invention] In the device of the present invention, a superconductor is used to shield the magnetic field, and the degree of penetration of the magnetic flux is adjusted using light rays or heat rays to form a magnetic latent image. Unlike other types of magnetic latent image forming apparatuses, there is no need for a minute and precise magnetic head, and it is possible and easy to record on a recording medium having a large area.
超電導体の臨界温度の直上直下における磁気的特性の変
化が急峻であるため、潜像形成のために必要な加熱温度
の変化の範囲が、最大１０度Ｃ程度もあれば、記録が充
分に可能であるために、この発明の装置ではエネルギ効
率が高い。Because the magnetic properties of a superconductor change sharply just above and below its critical temperature, recording is sufficient if the range of heating temperature changes needed to form a latent image is at most 10 degrees Celsius. Therefore, the device of the present invention has high energy efficiency.
この発明の装置によれば、常磁性と反磁性が共存するの
であり、常磁性部分が擬似的に強磁性的挙動をするため
に、磁性体粉体による顕画像がより一層鮮明となる。According to the apparatus of the present invention, paramagnetism and diamagnancy coexist, and since the paramagnetic portion behaves pseudo-ferromagnetically, the microscopic image produced by the magnetic powder becomes even clearer.
第１図は、この発明装置の一実施例の縦断端面図であり
、第２図は、この発明において利用する原理の説明用図
であり、第３図は他の実施例装置の縦断端面図である。
［図面中の主要部分の符号］
１、記録体 ３．現像器
２、磁場発生手段 Ｌ５加熱手段FIG. 1 is a longitudinal sectional end view of one embodiment of the device of this invention, FIG. 2 is a diagram for explaining the principle utilized in this invention, and FIG. 3 is a longitudinal sectional end view of another embodiment of the device. It is. [Symbols of main parts in the drawings] 1. Recording body 3. Developing device 2, magnetic field generating means L5 heating means
Claims (1)
この超電導性薄層を加熱する手段と、磁場発生手段と、
この磁場発生手段と超電導薄層とによって形成される磁
気潜像を磁性粉末で現像する手段からなる画像形成装置
。1. A thin layer recording body having superconductivity, a means for heating the superconducting thin layer according to image information, and a magnetic field generating means;
An image forming apparatus comprising means for developing a magnetic latent image formed by the magnetic field generating means and the superconducting thin layer with magnetic powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096748A JPH077237B2 (en) | 1988-04-21 | 1988-04-21 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63096748A JPH077237B2 (en) | 1988-04-21 | 1988-04-21 | Image forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01269972A true JPH01269972A (en) | 1989-10-27 |
| JPH077237B2 JPH077237B2 (en) | 1995-01-30 |
Family
ID=14173297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63096748A Expired - Fee Related JPH077237B2 (en) | 1988-04-21 | 1988-04-21 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077237B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136759A (en) * | 1987-11-25 | 1989-05-30 | Matsushita Electric Ind Co Ltd | Recording apparatus |
-
1988
- 1988-04-21 JP JP63096748A patent/JPH077237B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01136759A (en) * | 1987-11-25 | 1989-05-30 | Matsushita Electric Ind Co Ltd | Recording apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077237B2 (en) | 1995-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Malozemoff et al. | Magnetic domain walls in bubble materials: advances in materials and device research | |
| Coey | Magnetism in future | |
| Ren et al. | Strongly heat-assisted spin–orbit torque switching of a ferrimagnetic insulator | |
| Shen et al. | Anomalous depinning of magnetic domain walls within the ferromagnetic phase of the Weyl semimetal Co3Sn2S2 | |
| Sugimoto et al. | Nonequilibrium skyrmion accumulation induced by direct current in Ir/Co/Pt heterostructure | |
| Wéra et al. | Magnetic shielding of open and semi-closed bulk superconductor tubes: The role of a cap | |
| Hajjar et al. | Measurements of magnetoresistance in magneto‐optical recording media | |
| Ponomareva et al. | A quantitative study of magnetic interactions between a micro-magnet array and individual magnetic micro-particles by scanning particle force microscopy | |
| GB2108908A (en) | Method of erasing magnetic latent image in thermo-magnetic recording | |
| JPH01269972A (en) | Image forming device | |
| JP3370240B2 (en) | Magnetic recording medium, method of manufacturing the same, and magnetic printing apparatus using the same | |
| JPH01269973A (en) | Image forming device | |
| Kasatani et al. | Electrical detection and current control of all-optical magnetization switching in GdFeCo ferrimagnetic alloy thin film | |
| US4544574A (en) | Method of manufacturing a magnetic recording medium | |
| Wang et al. | Interlayer exchange coupling modulated all-optical magnetic switching in synthetic ferrimagnetic heterostructures | |
| US3823406A (en) | Methods, apparatus and media for magnetically recording information | |
| US3778145A (en) | Magnetic imaging | |
| Sahoo et al. | Role of film thickness and disorder in tuning perpendicular magnetic anisotropy in GdTb-FeCo alloy films | |
| JPH01269971A (en) | Device and method for magnetic latent image formation | |
| Dillon Jr et al. | Magneto‐optical study of uranium additions to amorphous Tb x Fe1− x | |
| Smits | Magnetic multilayers | |
| JPH01231080A (en) | Magnetic recording device | |
| Scheinfein et al. | Scanning electron microscopy with polarization analysis (SEMPA)—Studies of domains, domain walls and magnetic singularities at surfaces and in thin films | |
| Li et al. | Mechanism analysis of ultrafast magnetic switching | |
| Matsushita et al. | Thermomagnetic contact printing in amorphous Tb-Fe films |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |