JPH038549B2 - - Google Patents
Info
- Publication number
- JPH038549B2 JPH038549B2 JP15112681A JP15112681A JPH038549B2 JP H038549 B2 JPH038549 B2 JP H038549B2 JP 15112681 A JP15112681 A JP 15112681A JP 15112681 A JP15112681 A JP 15112681A JP H038549 B2 JPH038549 B2 JP H038549B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic recording
- layer
- electrode
- 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
Links
- 238000000034 method Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- -1 GdCo Chemical class 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000007740 vapor deposition 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
- G03G19/00—Processes using magnetic patterns; Apparatus therefor, i.e. magnetography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は、磁気記録媒体に磁気潜像を形成する
磁気記録方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic recording method for forming a magnetic latent image on a magnetic recording medium.
従来から、磁気記録方法として、磁気記録媒体
の近くにヘツドにコイルを巻回したものを配置
し、このコイルに信号電流を流して形成される磁
界で磁気記録媒体に磁気潜像を形成するものが知
られている。しかし、この磁気記録方法は、多数
のヘツドを用いて高速記録を行う場合に、各ヘツ
ドごとにコイルを巻く必要があるのでその製作が
複雑となるため高密度の記録がむずかしい。 Traditionally, magnetic recording methods involve placing a coil wound around a head near the magnetic recording medium, and forming a magnetic latent image on the magnetic recording medium using the magnetic field created by passing a signal current through this coil. It has been known. However, in this magnetic recording method, when performing high-speed recording using a large number of heads, it is necessary to wind a coil for each head, which makes manufacturing complicated and makes high-density recording difficult.
また、レーザー光を磁気記録媒体に照射してレ
ーザー光のエネルギーで磁気記録媒体を加熱して
磁気潜像を形成する磁気記録方法も知られてい
る。しかし、この磁気記録方法は、レーザー光の
変調および走査が複雑であり、かつ、光学系を配
置する空間が大きく必要であるため小型化に適し
ていないという欠点がある。 Also known is a magnetic recording method in which a magnetic recording medium is irradiated with laser light and the magnetic recording medium is heated by the energy of the laser light to form a magnetic latent image. However, this magnetic recording method has disadvantages in that modulation and scanning of the laser beam are complicated, and a large space is required for arranging the optical system, making it unsuitable for miniaturization.
さらにまた、熱ヘツドで磁気記録媒体を直接に
加熱して磁気潜像を形成する磁気記録方法も知ら
れている。しかし、この磁気記録方法は、記録に
必要なエネルギーが大きく、かつ、熱ヘツドを冷
却する工程が必要であるため高速記録に適してい
ないという欠点がある。 Furthermore, a magnetic recording method is also known in which a magnetic recording medium is directly heated with a thermal head to form a magnetic latent image. However, this magnetic recording method has the disadvantage that it is not suitable for high-speed recording because it requires a large amount of energy for recording and requires a step to cool the thermal head.
本発明の目的は、構成が簡単であつて高密度の
記録が可能であり、かつ、高速記録に適している
磁気記録方法を提供することにある。 An object of the present invention is to provide a magnetic recording method that has a simple configuration, enables high-density recording, and is suitable for high-speed recording.
本発明は、非磁性支持体に磁性記録層を積層
し、かつ、この磁性記録層に半導電層を積層して
なる磁気記録媒体に熱および外部磁界を加えて磁
気記録層の磁界の方向を磁気記録媒体の一定の層
方向とし、次に磁気記録層の磁界の方向と反対方
向の外部磁界を磁気記録媒体に加えた状態で、磁
気記録媒体の半導電層に記録電極と帰路電極とを
接触させ、かつ、これらの記録電極と帰路電極と
の間に選択的に画像信号電圧を印加して半導電層
に通電してジユール熱を発生させることにより記
録電極に対向する磁気記録層の磁界の方向を反転
させて磁気潜像を形成することを特徴とする。 The present invention applies heat and an external magnetic field to a magnetic recording medium in which a magnetic recording layer is laminated on a non-magnetic support and a semiconducting layer is laminated on the magnetic recording layer, thereby changing the direction of the magnetic field of the magnetic recording layer. A recording electrode and a return electrode are attached to the semiconducting layer of the magnetic recording medium with the magnetic recording medium in a certain layer direction and then applying an external magnetic field to the magnetic recording medium in the opposite direction to the magnetic field direction of the magnetic recording layer. The magnetic field of the magnetic recording layer facing the recording electrode is made to contact the recording electrode and the return electrode by selectively applying an image signal voltage between the recording electrode and the return electrode to supply electricity to the semiconductive layer and generate Joule heat. The magnetic latent image is formed by reversing the direction of the magnetic latent image.
以下に図面を参照しながら本発明を詳細に説明
する。 The present invention will be described in detail below with reference to the drawings.
第１図において符号１は磁気記録媒体を示して
いる。この磁気記録媒体１は、非磁性支持体１ａ
に磁気記録層１ｂを積層し、かつ、この磁気記録
層１ｂに半導電層１ｃを積層してなる。 In FIG. 1, reference numeral 1 indicates a magnetic recording medium. This magnetic recording medium 1 includes a non-magnetic support 1a
A magnetic recording layer 1b is laminated on the magnetic recording layer 1b, and a semiconducting layer 1c is laminated on the magnetic recording layer 1b.
上記非磁性支持体１ａは、Cuまたはプラスチ
ツクフイル、ポリカーボネート、マイラーおよび
ポリイミドフイルなどで５〜100μmの膜厚に形成
される。 The non-magnetic support 1a is made of Cu, plastic film, polycarbonate, Mylar, polyimide film, etc. and has a thickness of 5 to 100 μm.
上記磁気記録層１ｂは、熱と外部磁界を加える
ことにより磁界の方向を反転可能な物質で0.5〜
50μmの膜厚に形成される。上記磁気記録層１ｂ
を形成する物質としては、キユリー温度が約130
℃であるTbFe、キユリー温度が約60℃である
FeDy、補償点が30℃であるFeGd、補償点が80℃
であるGdCo、キユリー温度が160℃である
（TbFe）Gdおよび（TbFe）Dyなどの重金属と
遷移金属との合金が良い。上記磁気記録層１ｂ
は、スパツター法、蒸着法またはメツキ法で形成
される。 The magnetic recording layer 1b is made of a material that can reverse the direction of the magnetic field by applying heat and an external magnetic field.
Formed to a film thickness of 50 μm. The magnetic recording layer 1b
As a substance that forms
℃ TbFe, the Kyrie temperature is about 60℃
FeDy, compensation point is 30℃ FeGd, compensation point is 80℃
Alloys of heavy metals and transition metals such as GdCo, which has a Curie temperature of 160°C, (TbFe)Gd and (TbFe)Dy, are good. The magnetic recording layer 1b
is formed by a sputtering method, a vapor deposition method, or a plating method.
上記半導電層１ｃは、103〜106Ωの表面抵抗を
有すると共に軟化点が180℃以上である物質で１
〜50μmの膜厚に形成される。上記半導電層１ｃ
は、絶縁性バインダー用樹脂に導電粉末を均一に
分散して形成される。半導電層１ｃの絶縁性バイ
ンダー用樹脂としては、ポリカーボネート、ポリ
エチレン、ポリエステル、マイラー、ポリイミ
ド、および、塩化ビニルなどが用いられる。半導
電層１ｃの導電粉末としては、金属粉末、導電性
カーボンおよび導電性プラスチツク粉末が用いら
れる。 The semiconducting layer 1c is made of a material having a surface resistance of 10 3 to 10 6 Ω and a softening point of 180° C. or higher.
Formed to a film thickness of ~50μm. The above semiconducting layer 1c
is formed by uniformly dispersing conductive powder in an insulating binder resin. As the resin for the insulating binder of the semiconductive layer 1c, polycarbonate, polyethylene, polyester, mylar, polyimide, vinyl chloride, etc. are used. As the conductive powder for the semiconductive layer 1c, metal powder, conductive carbon, and conductive plastic powder are used.
先ず、第１図に示すように、上記磁気記録媒体
１をヒータ２で加熱すると共に磁石３の磁界中に
磁気記録媒体１を配置して、磁気記録層１ｂの磁
界を磁気記録媒体１の一定の層方向へ向ける。 First, as shown in FIG. 1, the magnetic recording medium 1 is heated by the heater 2, and the magnetic recording medium 1 is placed in the magnetic field of the magnet 3, so that the magnetic field of the magnetic recording layer 1b is adjusted to a constant level of the magnetic recording medium 1. Orient towards the layer.
次に、第２図に示すように、上記磁気記録媒体
１の磁気記録層１ｂの磁界の方向と反対方向の磁
界を磁石４により磁気記録媒体１に加える。上記
磁気記録媒体１の半導電層１ｃに、上記磁石４の
磁界中に位置するように記録電極５を接触すると
共にこの記録電極５から所定間隔をおいて配置さ
れた帰路電極６を接触し、かつ、これらの記録電
極５と帰路電極６との間に画像信号電圧印加回路
７によりパルス状の画像信号電圧を印加して半導
電層１ｃに通電してジユール熱を発生させること
により記録電極５に対向する磁気記録層１ｂの磁
界の方向を反転させて磁気潜像を形成する。 Next, as shown in FIG. 2, a magnetic field is applied to the magnetic recording medium 1 by the magnet 4 in a direction opposite to that of the magnetic recording layer 1b of the magnetic recording medium 1. As shown in FIG. A recording electrode 5 is brought into contact with the semiconducting layer 1c of the magnetic recording medium 1 so as to be located in the magnetic field of the magnet 4, and a return electrode 6 placed at a predetermined distance from the recording electrode 5 is brought into contact with the semiconducting layer 1c. Furthermore, a pulsed image signal voltage is applied between the recording electrode 5 and the return electrode 6 by the image signal voltage applying circuit 7, and current is applied to the semiconductive layer 1c to generate Joule heat, thereby increasing the recording electrode 5. A magnetic latent image is formed by reversing the direction of the magnetic field of the magnetic recording layer 1b facing the magnetic recording layer 1b.
上記記録電極５の半導電層１ｃに対する接触面
積は帰路電極６の半導電層１ｃに対する接触面積
より非常に小さいように設定されている。記録電
極５の直径をｄとし、帰路電極６の半導電層１ｃ
に対する接触面が一辺がＤの正方形とした場合に
10d≪Ｄの条件を満足する必要がある。 The contact area of the recording electrode 5 with the semiconductive layer 1c is set to be much smaller than the contact area of the return electrode 6 with the semiconductive layer 1c. The diameter of the recording electrode 5 is d, and the semiconducting layer 1c of the return electrode 6 is
If the contact surface is a square with side D
It is necessary to satisfy the condition 10d≪D.
また、上記半導電層１ｃの強度を一定以上に保
つためにその厚さは、1μm以上とする必要があ
り、かつ、50μmを超えると記録以外に消費され
る通電エネルギーが大きくなるので50μm以下と
することが好ましい。 In addition, in order to maintain the strength of the semiconductive layer 1c above a certain level, the thickness must be 1 μm or more, and if it exceeds 50 μm, the electrical energy consumed for purposes other than recording will increase, so it should not be more than 50 μm. It is preferable to do so.
そして、上記記録電極５と帰路電極６との距離
をＬとすると、2d＞Ｌである場合には記録電極
５と帰路電極６との間の磁気記録層１ｂの部分ま
で磁界の方向が反転してしまう可能性があるの
で、2d≦Ｌという条件を満足する必要がある。
Ｌが大きくなると、記録部分以外の通電経路で消
費されるエネルギーが大きくなるから、ｄとＬの
関係のさらに好ましい条件は5d≦Ｌ≦80dであ
る。また、解像力の実用上の範囲は８〜16ドツ
ト／mmであるから、50μm≦ｄ≦150μmであるこ
とが必要である。 If the distance between the recording electrode 5 and the return electrode 6 is L, then if 2d>L, the direction of the magnetic field is reversed to the part of the magnetic recording layer 1b between the recording electrode 5 and the return electrode 6. Therefore, it is necessary to satisfy the condition 2d≦L.
As L becomes larger, energy consumed in the current-carrying path other than the recording portion increases, so a more preferable condition for the relationship between d and L is 5d≦L≦80d. Further, since the practical range of resolution is 8 to 16 dots/mm, it is necessary that 50 μm≦d≦150 μm.
さらに、上記半導電層１ｃの厚さをｌとし、円
周率をπとすると、10≦πdL／4l2≦105という条件を
満足する必要があり、その理由を次に説明する。 Furthermore, when the thickness of the semiconductive layer 1c is l and the circumference is π, it is necessary to satisfy the condition 10≦πdL/4l 2 ≦10 5 , and the reason for this will be explained below.
上記半導電層１ｃの体積固有抵抗をρvとし、
半導電層１ｃの厚さ方向の抵抗をRtとし、平面
方向の抵抗をRpとすると、RtおよびRpは次の式
で表わされる。 The volume resistivity of the semiconducting layer 1c is ρv,
When the resistance in the thickness direction of the semiconducting layer 1c is Rt, and the resistance in the planar direction is Rp, Rt and Rp are expressed by the following formula.
Rt＝ρv×4l／πd2 ……(1)
Rp≒ρv×Ｌ／dl ……(2)
上記(1)，(2)式からRpとRtとの比KEを求める
と、KEは次の式で表わされる。 Rt=ρv×4l/πd 2 ……(1) Rp≒ρv×L/dl ……(2) When calculating the ratio K E of Rp and Rt from the above equations (1) and (2), K E is It is expressed by the following formula.
KE＝Rp／Rt≒πdL／4l2 ……(3)
上記Ｌを主として変化させてKEを５〜105の範
囲で変化させて記録エネルギーの変化および磁気
記録層１ｂの磁界の方向が反転した部分の記録電
極５の面積に対する拡大率を調べたところ、記録
エネルギーはKEの増大にともなつて増大し、ま
た、上記拡大率はKEの増大にともなつて減少し
た。そして、実用上記録エネルギーは20mJ／ド
ツト以下であることが望ましく、かつ、拡大率は
−20％〜＋100％であることが望ましいので、10
≦KE≦105の条件を満足する必要がある。 K E = Rp/Rt≒πdL/4l 2 ...(3) By mainly changing the above L and changing K E in the range of 5 to 10 5 , the change in recording energy and the direction of the magnetic field of the magnetic recording layer 1b can be adjusted. When the magnification rate relative to the area of the recording electrode 5 in the inverted portion was examined, it was found that the recording energy increased as K E increased, and the magnification rate decreased as K E increased. In practice, it is desirable that the recording energy is 20 mJ/dot or less, and that the magnification is -20% to +100%.
It is necessary to satisfy the condition ≦K E ≦10 5 .
なお、複数の記録電極５を１列状に配置しても
よく、また、複数の記録電極５を複数列状に配置
すると共に各列の記録電極５を他の列の記録電極
５の中間に位置させてもよい。 Note that a plurality of recording electrodes 5 may be arranged in a single row, or a plurality of recording electrodes 5 may be arranged in a plurality of rows and the recording electrodes 5 in each row may be placed between the recording electrodes 5 in other rows. It may be located.
第３図に本発明を実施する装置の１実施例が示
されているので、次にこれを説明する。 FIG. 3 shows one embodiment of an apparatus for carrying out the present invention, which will now be described.
第３図において符号８，９はそれぞれ搬送ロー
ラーを示しており、これらの搬送ローラー８，９
はそれぞれ図示してない駆動手段により矢印ａ，
ｂ方向へ回転される。これらの搬送ローラー８，
９にはエンドレスの磁気記録媒体１が取り掛けら
れている。この磁気記録媒体１は、非磁性支持体
１ａが外側に位置し半導電層１ｃが内側に位置す
るように搬送ローラー８，９に取り掛けられてい
て、搬送ローラー８，９により矢印ｃ方向へ移動
される。 In FIG. 3, reference numerals 8 and 9 indicate conveyance rollers, and these conveyance rollers 8 and 9
are driven by driving means (not shown), respectively.
It is rotated in direction b. These conveyance rollers 8,
At 9, an endless magnetic recording medium 1 is loaded. This magnetic recording medium 1 is mounted on transport rollers 8 and 9 such that the nonmagnetic support 1a is located on the outside and the semiconductive layer 1c is located on the inside, and is moved in the direction of arrow c by the transport rollers 8 and 9. will be moved.
上記搬送ローラー８の近くの上側に位置する磁
気記録媒体１の上にはヒータ２および磁石３が配
置されている。このヒータ２により磁気記録層１
ｂを加熱すると共に磁石３により磁気記録層１ｂ
に磁界を加えて磁気記録層１ｂに磁気記録媒体１
の一定の層方向の磁界を形成する。上記搬送ロー
ラー９の近くの上側に位置する磁気記録媒体１の
半導電層１ｃに接触するように複数の記録電極５
および帰路電極６が配置されている。これらの記
録電極５と帰路電極６とには画像信号電圧印加回
路７が接続されている。上記記録電極５と対向す
る磁気記録媒体１の上には磁石４が配置される。
上記磁石３の磁界の方向と磁石４の磁界の方向と
は反対である。上記画像信号電圧印加回路７によ
り記録電極５と帰路電極６との間に選択的にパル
ス状の画像信号電圧を印加することにより、上述
のように磁気記録層１ｂに磁気潜像が形成され
る。 A heater 2 and a magnet 3 are arranged above the magnetic recording medium 1 located above the transport roller 8. This heater 2 causes the magnetic recording layer 1 to
The magnetic recording layer 1b is heated by the magnet 3 while heating the magnetic recording layer 1b.
A magnetic field is applied to the magnetic recording layer 1b to form the magnetic recording medium 1.
A magnetic field is generated in a constant layer direction. A plurality of recording electrodes 5 are arranged so as to contact the semiconductive layer 1c of the magnetic recording medium 1 located above the transport roller 9.
and a return electrode 6 are arranged. An image signal voltage applying circuit 7 is connected to these recording electrodes 5 and return electrodes 6. A magnet 4 is placed on the magnetic recording medium 1 facing the recording electrode 5 .
The direction of the magnetic field of the magnet 3 and the direction of the magnetic field of the magnet 4 are opposite. By selectively applying a pulsed image signal voltage between the recording electrode 5 and the return electrode 6 by the image signal voltage applying circuit 7, a magnetic latent image is formed on the magnetic recording layer 1b as described above. .
上記搬送ローラー９の下側に位置する磁気記録
媒体１の外側には現像装置１０が配置されてい
る。この現像装置１０は、容器１０ａとこの容器
１０ａに収容された磁性粉を含有したトナー１０
ｂと、このトナー１０ｂを磁気記録媒体１方向へ
移動させるローラー１０ｃとからなる。上記トナ
ー１０ｂは、全体積の20％以上の磁性粉を含有し
ていると共に1μC／ｇ以上の電荷を有するもので
ある。上記磁気記録層１ｂの磁界の方向が反転し
た部分の磁界は非常に強いから、この部分に上記
トナー１０ｂが吸引されて磁気記録媒体１の非磁
性支持体１ａに付着して磁気潜像が可視化され
る。 A developing device 10 is disposed outside the magnetic recording medium 1 located below the transport roller 9 . This developing device 10 includes a container 10a and a toner 10 containing magnetic powder contained in the container 10a.
b, and a roller 10c that moves this toner 10b in one direction of the magnetic recording medium. The toner 10b contains magnetic powder of 20% or more of the total volume and has a charge of 1 μC/g or more. Since the magnetic field in the portion of the magnetic recording layer 1b where the direction of the magnetic field is reversed is very strong, the toner 10b is attracted to this portion and adheres to the non-magnetic support 1a of the magnetic recording medium 1, making a magnetic latent image visible. be done.
上記搬送ローラー８の下には磁気記録媒体１の
外側に転写装置１１が配置されていると共に転写
媒体１２を搬送するローラー１３が配置されてい
る。上記転写装置１１と磁気記録媒体１の間に転
写媒体１２が挿入されると、転写装置１１の放電
により磁気記録媒体１のトナーがクーロン力によ
り転写媒体１２に転移される。上記搬送ローラー
８の近くには、転写後の磁気記録媒体１に残留し
ているトナーを除去するためのクリーニング装置
１４が配置されている。このクリーニング装置１
４は、外周面に毛が植えられたマグネツトローラ
ー１４ａと、このマグネツトローラー１４ａに接
触しているトナー分離ローラー１４ｂと、トナー
を収容する容器１４ｃと、この容器１４ｃの下に
配置されたトナー回収容器１４ｄとからなる。上
記マグネツトローラー１４ａの毛が磁気記録媒体
１の残留トナーに接触して残留トナーを磁気記録
媒体１から分離させると共にマグネツトローラー
１４ａは磁力により残留トナーを吸引して磁気記
録媒体１から残留トナーを除去する。このマグネ
ツトローラー１４ａに付着したトナーはトナー分
離ローラー１４ｂにより分離されて容器１４ｃへ
落下される。 Below the conveyance roller 8, a transfer device 11 is disposed outside the magnetic recording medium 1, and a roller 13 for conveying the transfer medium 12 is disposed. When the transfer medium 12 is inserted between the transfer device 11 and the magnetic recording medium 1, the toner on the magnetic recording medium 1 is transferred to the transfer medium 12 by the Coulomb force due to discharge of the transfer device 11. A cleaning device 14 is arranged near the transport roller 8 to remove toner remaining on the magnetic recording medium 1 after transfer. This cleaning device 1
4 includes a magnetic roller 14a having bristles on its outer circumferential surface, a toner separation roller 14b in contact with the magnetic roller 14a, a container 14c containing toner, and a toner disposed below the container 14c. It consists of a toner collection container 14d. The hairs of the magnetic roller 14a come into contact with the residual toner on the magnetic recording medium 1 and separate the residual toner from the magnetic recording medium 1, and the magnetic roller 14a attracts the residual toner by magnetic force to remove the residual toner from the magnetic recording medium 1. remove. The toner adhering to the magnetic roller 14a is separated by a toner separation roller 14b and dropped into a container 14c.
上記クリーニング装置１４により残留トナーを
除去された磁気記録媒体１はヒータ２により加熱
された後に磁石３により一定方向の磁界を加えら
れて再度記録が可能な状態となる。 The magnetic recording medium 1 from which the residual toner has been removed by the cleaning device 14 is heated by the heater 2, and then a magnetic field is applied in a certain direction by the magnet 3, so that it becomes ready for recording again.
本発明の磁気記録方法は、構成が簡単であつて
高密度の記録が可能であり、かつ、高速記録に適
している。 The magnetic recording method of the present invention has a simple configuration, enables high-density recording, and is suitable for high-speed recording.
第１図および第２図は本発明を説明するための
図、並びに、第３図は本発明を実施する装置の１
実施例を示す図である。
１……磁気記録媒体、１ａ……非磁性支持体、
１ｂ……磁気記録層、１ｃ……半導電層、２……
ヒータ、３，４……磁石、５……記録電極、６…
…帰路電極、７……画像信号電圧印加回路。
FIG. 1 and FIG. 2 are diagrams for explaining the present invention, and FIG. 3 is a diagram of an apparatus for carrying out the present invention.
It is a figure showing an example. 1...Magnetic recording medium, 1a...Nonmagnetic support,
1b...Magnetic recording layer, 1c...Semiconducting layer, 2...
Heater, 3, 4... Magnet, 5... Recording electrode, 6...
...Return electrode, 7... Image signal voltage application circuit.
Claims (1)
能な磁気記録層を非磁性支持体に積層し、かつ、
上記磁気記録層に103〜106Ωの表面抵抗を有する
半導電層を積層してなる磁気記録媒体に熱および
外部磁界を加えて磁気記録層の磁界の方向を磁気
記録媒体の一定の層方向とし、次に磁気記録層の
磁界の方向と反対方向の外部磁界を磁気記録媒体
に加えた状態で、磁気記録媒体の半導電層に記録
電極とこれから所定間隔をおいて配置された帰路
電極を接触させ、かつ、これらの記録電極と帰路
電極との間に選択的に画像信号電圧を印加して半
導電層に通電してジユール熱を発生させることに
より記録電極に対向する磁気記録層の磁界の方向
を反転させて磁気潜像を形成することを特徴とす
る磁気記録方法。1. A magnetic recording layer whose magnetic field direction can be reversed by heat and an external magnetic field is laminated on a non-magnetic support, and
Heat and an external magnetic field are applied to a magnetic recording medium formed by stacking a semiconducting layer having a surface resistance of 10 3 to 10 6 Ω on the magnetic recording layer to change the direction of the magnetic field in the magnetic recording layer to a certain layer of the magnetic recording medium. direction, and then apply an external magnetic field to the magnetic recording medium in a direction opposite to the direction of the magnetic field of the magnetic recording layer, and a recording electrode and a return electrode arranged at a predetermined interval from the recording electrode on the semiconducting layer of the magnetic recording medium. The magnetic recording layer facing the recording electrode is brought into contact with the recording electrode and the return electrode, and an image signal voltage is selectively applied between the recording electrode and the return electrode to supply electricity to the semiconductive layer and generate Joule heat. A magnetic recording method characterized by forming a magnetic latent image by reversing the direction of a magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15112681A JPS5852670A (en) | 1981-09-22 | 1981-09-22 | Magnetic recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15112681A JPS5852670A (en) | 1981-09-22 | 1981-09-22 | Magnetic recording method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5852670A JPS5852670A (en) | 1983-03-28 |
| JPH038549B2 true JPH038549B2 (en) | 1991-02-06 |
Family
ID=15511926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15112681A Granted JPS5852670A (en) | 1981-09-22 | 1981-09-22 | Magnetic recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5852670A (en) |
-
1981
- 1981-09-22 JP JP15112681A patent/JPS5852670A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5852670A (en) | 1983-03-28 |
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