JPH039872B2 - - Google Patents
Info
- Publication number
- JPH039872B2 JPH039872B2 JP57215307A JP21530782A JPH039872B2 JP H039872 B2 JPH039872 B2 JP H039872B2 JP 57215307 A JP57215307 A JP 57215307A JP 21530782 A JP21530782 A JP 21530782A JP H039872 B2 JPH039872 B2 JP H039872B2
- Authority
- JP
- Japan
- Prior art keywords
- recording
- hollow body
- rigid substrate
- voltage pulse
- recording electrode
- 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
- 239000000758 substrate Substances 0.000 claims description 47
- 239000004020 conductor Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- G03G15/34—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/385—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material
- B41J2/43—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective supply of electric current or selective application of magnetism to a printing or impression-transfer material for magnetic printing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2217/00—Details of electrographic processes using patterns other than charge patterns
- G03G2217/0008—Process where toner image is produced by controlling which part of the toner should move to the image- carrying member
- G03G2217/0016—Process where toner image is produced by controlling which part of the toner should move to the image- carrying member where the toner is conveyed over the electrode array to get a charging and then being moved
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)
- Facsimile Heads (AREA)
- Fax Reproducing Arrangements (AREA)
Description
【発明の詳細な説明】
本発明は、互いに対向された記録電極と背面電
極との間に記録媒体を供給し、かつこの記録媒体
と前記記録電極との間に磁性を有するトナーを供
給する一方、前記記録電極の周囲に磁界を形成
し、この磁界により前記記録電極上に前記トナー
粒子を保持させ、この状態において、前記両電極
間に電圧パルスを印加することにより、クーロン
力にて前記トナー粒子を前記記録媒体に移行さ
せ、記録を行う形式の記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for supplying a recording medium between a recording electrode and a back electrode facing each other, and supplying magnetic toner between the recording medium and the recording electrode. , a magnetic field is formed around the recording electrode, the toner particles are held on the recording electrode by this magnetic field, and in this state, a voltage pulse is applied between the two electrodes to cause the toner particles to be removed by Coulomb force. The present invention relates to a recording device that performs recording by transferring particles to the recording medium.
従来技術の構成とその問題点
第1図は、従来のこの種の記録装置の断面図で
ある。この図において、1は円筒状の中空体(ス
リーブ)、2は複数の磁石をロール状に組み立て
てなる磁石ロール、3はホツパー、4はトナー、
5は記録電極、6は背面電極、7は記録媒体、8
は電圧パルス印加回路である。なお、図面上で
は、記録電極5は1本しか現れていないが、実際
には、多数の記録電極5が、中空体1の軸線と平
行な方向に沿つて1列に設けられている。Configuration of Prior Art and Its Problems FIG. 1 is a sectional view of a conventional recording apparatus of this type. In this figure, 1 is a cylindrical hollow body (sleeve), 2 is a magnet roll made by assembling a plurality of magnets into a roll, 3 is a hopper, 4 is a toner,
5 is a recording electrode, 6 is a back electrode, 7 is a recording medium, 8
is a voltage pulse application circuit. Although only one recording electrode 5 is shown in the drawing, in reality, a large number of recording electrodes 5 are provided in a row along a direction parallel to the axis of the hollow body 1.
この装置においては、磁石ロール2の矢印A方
向の回転により、トナー4がホツパー3から中空
体1の外周面上に引き出され、同外周面上に沿つ
て矢印C方向に搬送され、記録電極5上に至る。
そして、この状態において、電圧パルス印加回路
8により、各記録電極5と背面電極6との間に選
択的に電圧パルスが印加されると、電圧パルスを
印加された記録電極5上のトナー粒子が、クーロ
ン力により、磁石ロール2の磁力に抗して記録媒
体7へ移行し、同記録媒体7上にドツト状に付着
し、記録が行われる。 In this device, as the magnetic roll 2 rotates in the direction of the arrow A, the toner 4 is pulled out from the hopper 3 onto the outer circumferential surface of the hollow body 1, is conveyed along the outer circumferential surface in the direction of the arrow C, and is transferred to the recording electrode 5. reach the top.
In this state, when a voltage pulse is selectively applied between each recording electrode 5 and the back electrode 6 by the voltage pulse application circuit 8, the toner particles on the recording electrode 5 to which the voltage pulse has been applied are Due to the Coulomb force, the recording material moves to the recording medium 7 against the magnetic force of the magnet roll 2, adheres to the recording medium 7 in the form of a dot, and recording is performed.
ここで、特公昭57−38899号は、可撓性印刷回
路板に形成された導線パターン(リード)の先端
部により、記録電極5を構成するとともに、前記
可撓性印刷回路板をトナーの搬送の妨げにならな
いように中空体1の外周面に沿つて接着し、かつ
同回路板の記録電極5と反対側の端部を中空体1
の両側に取り出し、コネクタで電圧パルス印加回
路8に接続する構造を提案している。 Here, in Japanese Patent Publication No. 57-38899, recording electrodes 5 are configured by the tips of conductor patterns (leads) formed on a flexible printed circuit board, and the flexible printed circuit board is used to transport toner. The circuit board is glued along the outer peripheral surface of the hollow body 1 so as not to interfere with the circuit board, and the end of the circuit board opposite to the recording electrode 5 is attached to the hollow body 1.
A structure is proposed in which the voltage pulse is taken out on both sides and connected to the voltage pulse application circuit 8 using a connector.
しかし、このような構造では、次のような欠点
を生じていた。 However, such a structure has the following drawbacks.
(イ) フアクシミリ装置等における記録装置では、
一般に、記録電極5の密度(画素密度)は8
本/mm、またはそれ以上必要になるが、可撓性
印刷回路板に形成し得る導線パターンの密度
は、通常、3〜5本/mm程度であり、それ以上
の密度を得ることは、歩留まりの関係上困難で
ある。(b) In recording devices such as facsimile machines,
Generally, the density of the recording electrode 5 (pixel density) is 8
However, the density of the conductor pattern that can be formed on a flexible printed circuit board is usually about 3 to 5 wires/mm, and obtaining a higher density will reduce the yield. This is difficult due to the
(ロ) 1枚の可撓性印刷回路板のみでは必要数の記
録電極を得ることができず、多数枚の可撓性印
刷回路板を継ぎ合わせる必要があるが、多数枚
の可撓性印刷回路板を、その導線パターンの先
端部が一直線上に並ぶように継ぎ合わせるこ
と、および各可撓性印刷回路板間の継ぎ目にお
いて導線パターン間のピツチが不均一にならぬ
ようにすることには、非常な困難が伴い、コス
ト高を招く。(b) It is not possible to obtain the required number of recording electrodes with only one flexible printed circuit board, and it is necessary to join together multiple flexible printed circuit boards. To join the circuit boards so that the ends of the conductor patterns are aligned and to avoid uneven pitch between the conductor patterns at the seams between each flexible printed circuit board. , which is extremely difficult and leads to high costs.
発明の目的
本発明は、前記従来の欠点を解消するべくなさ
れたもので、記録電極の高密度化が容易で、低コ
スト、高品質、高信頼性の記録ヘツドを容易に得
ることができ、しかも記録ヘツドに対する電圧パ
ルス印加回路の配置を自由に選択することができ
る記録装置を提供することを目的する。OBJECTS OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and it is possible to easily obtain a low-cost, high-quality, and highly reliable recording head in which recording electrodes can be easily densified. Moreover, it is an object of the present invention to provide a recording apparatus in which the arrangement of voltage pulse application circuits to the recording head can be freely selected.
発明の構成
上記目的を達成するために、本発明は非磁性体
からなる円筒状の中空体と、この中空体の内部に
回転自在に収容された磁石と、この磁石を駆動回
転する駆動手段と、前記中空体の外周面状に磁性
を有するトナーを供給する手段と、前記中空体の
外周面付近に配置された多数の記録電極と、これ
らの記録電極に記録媒体を挟んで対向した位置に
設けられた背面電極と、前記各記録電極と前記背
面電極との間に選択的に電圧パルスを印加する電
圧パルス印加回路と、前記記録電極と前記電圧パ
ルス印加回路とを電気的に接続する接続手段とを
具備し、前記記録電極は前記中空体の外周面に対
しその接続と同一方向に配置された非磁性かつ絶
縁性の剛性基板上に形成された記録電極パターン
からなり、かつ前記接続手段は前記磁石の回転軸
に対し垂直な方向に立ち上がるように前記剛性基
板に取り付けられた絶縁性の可撓性基板上に形成
された前記記録電極パターンの端部と接続される
導線パターンからなるものである。Structure of the Invention In order to achieve the above object, the present invention includes a cylindrical hollow body made of a non-magnetic material, a magnet rotatably housed inside the hollow body, and a driving means for driving and rotating the magnet. , a means for supplying magnetic toner onto the outer peripheral surface of the hollow body, a large number of recording electrodes disposed near the outer peripheral surface of the hollow body, and a position opposite to these recording electrodes with a recording medium in between. A back electrode provided, a voltage pulse application circuit that selectively applies a voltage pulse between each of the recording electrodes and the back electrode, and a connection that electrically connects the recording electrode and the voltage pulse application circuit. the recording electrode comprises a recording electrode pattern formed on a non-magnetic and insulating rigid substrate disposed in the same direction as the connection with respect to the outer circumferential surface of the hollow body, and the connecting means is a conductive wire pattern connected to an end of the recording electrode pattern formed on an insulating flexible substrate attached to the rigid substrate so as to stand up in a direction perpendicular to the rotation axis of the magnet; It is.
実施例の説明
以下、本発明は図面に示す実施例に基づいて、
さらに詳細に説明する。Description of Embodiments Hereinafter, the present invention will be described based on the embodiments shown in the drawings.
This will be explained in more detail.
第2図は本発明の一実施例による記録装置の断
面図、第3図は同装置における記録ヘツドの分解
斜視図である。これらの図において、11は円筒
状の中空体であり、この中空体11は、アルミ合
金等の導電性の非磁性体、または合成樹脂等の絶
縁性の非磁性体で構成される。前記中空体11内
には、複数の磁石をロール状に組み立ててなる磁
石ロール12が、中空体11と同軸、かつ回転自
在に収容されており、この磁石ローラ12の外周
面には、S極とN極とが交互に形成されている。
また、この磁石ロール12は、図示しない磁石駆
動装置により、矢印A方向に回転されるようなつ
ている。 FIG. 2 is a sectional view of a recording apparatus according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view of a recording head in the same apparatus. In these figures, 11 is a cylindrical hollow body, and this hollow body 11 is made of a conductive non-magnetic material such as an aluminum alloy or an insulating non-magnetic material such as a synthetic resin. Inside the hollow body 11, a magnet roll 12 formed by assembling a plurality of magnets in a roll shape is housed coaxially and rotatably with the hollow body 11, and the outer peripheral surface of the magnet roller 12 has an S pole. and N poles are formed alternately.
Further, this magnet roll 12 is configured to be rotated in the direction of arrow A by a magnet drive device (not shown).
前記中空体11の上部近傍には、ホツパー13
が設けられており、このホツパー13内には、磁
性を有するトナー14が収容される。前記ホツパ
ー13の底部開口部には、ドクター15が形成さ
れており、このドクター15の先端部は、ドクタ
ーギヤツプ16を介して中空体11の外周面に対
向されている。 Near the upper part of the hollow body 11, a hopper 13 is provided.
A magnetic toner 14 is contained in the hopper 13 . A doctor 15 is formed at the bottom opening of the hopper 13, and the tip of the doctor 15 faces the outer peripheral surface of the hollow body 11 via a doctor gap 16.
前記中空体11には、非磁性体からなるトナー
ガイド17を介して記録ヘツド18が取り付けら
れている。この記録ヘツド18は、第3図に詳細
に示されるように、セラミツク等の非磁性の剛性
材料からなる剛性基板19と、この剛性基板19
上にホトエツチング等の微細加工により形成され
た導体箔からなる記録電極パターン20と、これ
らの記録電極パターン20を後述する電圧パルス
印加回路28に接続する複数枚の可撓性回路板2
2とからなる。なお、前記記録電極パターン20
は、磁性体で構成してもよいし、非磁性体で構成
してもよい。 A recording head 18 is attached to the hollow body 11 via a toner guide 17 made of a non-magnetic material. As shown in detail in FIG. 3, the recording head 18 includes a rigid substrate 19 made of a non-magnetic rigid material such as ceramic,
A recording electrode pattern 20 made of a conductive foil formed by microfabrication such as photoetching on the recording electrode pattern 20, and a plurality of flexible circuit boards 2 that connect these recording electrode patterns 20 to a voltage pulse application circuit 28 to be described later.
It consists of 2. Note that the recording electrode pattern 20
may be made of a magnetic material or a non-magnetic material.
前記剛性基板19は、中空体11に対し接線方
向に設けられており、かつ中空体11と共に磁石
ローラ12による磁界内に収容されている。ま
た、トナーガイド17の上面および下面も、それ
ぞれ中空体11の接続方向に延びており、同中空
体11の外周面と剛性基板19の上下端とを結ん
でいる。 The rigid substrate 19 is provided tangentially to the hollow body 11 and is housed together with the hollow body 11 in the magnetic field generated by the magnet roller 12 . Further, the upper and lower surfaces of the toner guide 17 also extend in the direction in which the hollow body 11 is connected, and connect the outer peripheral surface of the hollow body 11 with the upper and lower ends of the rigid substrate 19.
前記各記録電極パターン20の一端部20a
は、剛性基板19の下端部にまで延びており、同
下端部において同一ピツチで並んでいる。また、
記録電極パターン20の他端部20bは、所定本
数の記録電極パターン20毎に、中空体11の軸
方向と平行方向に折り曲げられており、かつこれ
らの端部20b間のピツチは前記端部20a間の
ピツチより広くされている(例えば、端部20a
間のピツチは8本/mm、端部20b間のピツチは
3〜5本/mmとされる)。 One end portion 20a of each recording electrode pattern 20
extend to the lower end of the rigid substrate 19, and are lined up at the same pitch at the lower end. Also,
The other end portion 20b of the recording electrode pattern 20 is bent in a direction parallel to the axial direction of the hollow body 11 for each predetermined number of recording electrode patterns 20, and the pitch between these end portions 20b is equal to the pitch between the end portions 20a. (for example, the end portion 20a
The pitch between them is 8 lines/mm, and the pitch between the ends 20b is 3 to 5 lines/mm).
前記各可撓性回路板22は、可撓性印刷回路板
であつて、絶縁性の可撓性基板23と、この可撓
性基板23上に形成された導線パターン24とか
らなり、その一端部22aにおける各導線パター
ン24間のピツチは、記録電極パターン20の下
端部20b間のピツチと同一とされる一方、他端
部22bにおける各導線パターン24間のピツチ
はそれより広くされている。 Each of the flexible circuit boards 22 is a flexible printed circuit board, and consists of an insulating flexible substrate 23 and a conductor pattern 24 formed on the flexible substrate 23, with one end of the flexible circuit board 22 being a flexible printed circuit board. The pitch between the conductive wire patterns 24 at the portion 22a is the same as the pitch between the lower end portions 20b of the recording electrode pattern 20, while the pitch between the conductive wire patterns 24 at the other end portion 22b is wider.
そして、前記各可撓性印刷回路板22の端部2
2aは、記録電極パターン20の端部20bと導
線パターン24とが互いに接続されるように、剛
性基板19に熱圧着されている。なお、ここで、
各可撓性印刷回路板22は、剛性基板19から、
前記磁石ロール12の回転軸に対し垂直方向に立
ち上がるようにされている。 and the end portion 2 of each flexible printed circuit board 22;
2a is thermocompression bonded to the rigid substrate 19 so that the end portion 20b of the recording electrode pattern 20 and the conductor pattern 24 are connected to each other. Furthermore, here,
Each flexible printed circuit board 22 extends from the rigid substrate 19 to
It is arranged to stand up in a direction perpendicular to the rotation axis of the magnet roll 12.
前記記録電極パターン20の下端部20aは、
背面電極25に間隙を介して対向されている。2
7は静電記録紙、普通紙等の記録媒体であり、図
示しない紙送りローラ等の記録媒体供給手段によ
り、記録電極パターン20の下端部20aと背面
電極25との間を矢印B方向に搬送される。28
は電圧パルス印加回路であり、可撓性印刷回路板
22の導線パターン24を介して、電極パターン
20と接続されている。 The lower end portion 20a of the recording electrode pattern 20 is
It faces the back electrode 25 with a gap in between. 2
Reference numeral 7 denotes a recording medium such as electrostatic recording paper or plain paper, which is conveyed in the direction of arrow B between the lower end 20a of the recording electrode pattern 20 and the back electrode 25 by a recording medium supply means such as a paper feed roller (not shown). be done. 28
is a voltage pulse application circuit, which is connected to the electrode pattern 20 via the conductor pattern 24 of the flexible printed circuit board 22.
次に、本装置の動作を説明する。 Next, the operation of this device will be explained.
磁石ロール12が前記磁石駆動装置により回転
されると、その磁界も回転することにより、ホツ
パー13内のトナー14が、ドクターギヤツプ1
6を通して中空体11の外周面上に引つ張り出さ
れた後、同外周面上を磁石ロール12の回転方向
と逆方向(矢印C方向)に搬送され、さらにトナ
ーガイド17の下面を経て、記録電極パターン2
0の下端部20aに至る。 When the magnet roll 12 is rotated by the magnet drive device, the magnetic field also rotates, so that the toner 14 in the hopper 13 is transferred to the doctor gap 1.
6 onto the outer circumferential surface of the hollow body 11, and then conveyed on the same outer circumferential surface in the direction opposite to the rotational direction of the magnet roll 12 (in the direction of arrow C), and further passes through the lower surface of the toner guide 17. Recording electrode pattern 2
0 to the lower end 20a.
このようにして記録電極パターン20の下端部
20aに達したトナー14は、同下端部20a上
でトナーチエーン(トナー粒子が磁石ロール12
から発する磁力線に沿つて鎖状に連なつたもの)
29を形成する。 The toner 14 that has reached the lower end 20a of the recording electrode pattern 20 in this way is transferred to the toner chain (the toner particles are transferred to the magnet roll 12) on the lower end 20a.
connected in a chain along the lines of magnetic force emanating from)
Form 29.
このようなトナーチエイン29が形成されてい
る状態において、電圧パルス印加回路28によ
り、導線パターン24を介して、記録電極パター
ン20と背面電極25との間に選択的に電圧パル
スが印加されると、従来装置の場合と同様にし
て、選択された記録電極パターン20上のトナー
チエイン29の先端部の粒子が、クーロン力によ
り、磁石ロール12の磁力に抗して記録媒体27
へ移行し、その結果、前記選択された記録電極パ
ターン20に対応するドツトが記録媒体27に印
加される。 When such a toner chain 29 is formed, a voltage pulse is selectively applied between the recording electrode pattern 20 and the back electrode 25 via the conductor pattern 24 by the voltage pulse application circuit 28. , as in the case of the conventional apparatus, particles at the tip of the toner chain 29 on the selected recording electrode pattern 20 are pushed against the magnetic force of the magnet roll 12 by the Coulomb force onto the recording medium 27.
As a result, dots corresponding to the selected recording electrode pattern 20 are applied to the recording medium 27.
したがつて、画像信号に応じて前記電圧パルス
の印加が行われ、かつこの電圧パルスの印加と並
行して、前記記録媒体供給手段による記録媒体2
7の搬送が行われると、前記画像信号に対応した
画像が記録媒体27上に記録されることになる。 Therefore, the voltage pulse is applied in accordance with the image signal, and in parallel with the application of the voltage pulse, the recording medium 2 is supplied by the recording medium supplying means.
7, an image corresponding to the image signal is recorded on the recording medium 27.
他方、記録電極パターン20の下端部20aに
達したものの、記録媒体27へ移行しなかつたト
ナー粒子は、前記のように剛性基板19が中空体
11と共に磁石ローラ12による磁界内に収容さ
れているため、さらに剛性基板19およびトナー
ガイド17の上面を経てホツパー13部に戻る
(すなわち、剛性基板19によつてトナー14の
搬送が阻害されることはない)。 On the other hand, toner particles that have reached the lower end 20a of the recording electrode pattern 20 but have not migrated to the recording medium 27 are accommodated in the magnetic field of the magnetic roller 12 by the rigid substrate 19 together with the hollow body 11 as described above. Therefore, the toner 14 is returned to the hopper 13 via the rigid substrate 19 and the upper surface of the toner guide 17 (that is, the transportation of the toner 14 is not hindered by the rigid substrate 19).
さて、一般に、剛性基板の方が可撓性基板より
機械的強度が優れ、かつ吸温性も少なく、微細パ
ターンの加工が容易である。したがつて、本装置
のように、剛性基板19上に記録電極パターン2
0を形成すれば、前記従来装置のように可撓性基
板上に記録電極パターンを形成する場合よりも、
記録電極パターン20の密度を大幅に高くするこ
とができ、例えば、8本/mm以上の密度も容易に
得ることができる。また、1枚の剛性基板19上
に必要本数(例えば、2048本以上)の記録電極パ
ターン20を形成することができるので、電極パ
ターン20の配列の直線性や配列ピツチの精度に
問題を生じることがなく、高品質、高信頼性の記
録ヘツドを安価に得ることができる。 Now, in general, rigid substrates have better mechanical strength than flexible substrates, have less heat absorption, and are easier to process into fine patterns. Therefore, like the present device, the recording electrode pattern 2 is placed on the rigid substrate 19.
0, the recording electrode pattern is formed on a flexible substrate as in the conventional device.
The density of the recording electrode pattern 20 can be greatly increased, and for example, a density of 8 lines/mm or more can be easily obtained. Furthermore, since the required number (for example, 2048 or more) of recording electrode patterns 20 can be formed on one rigid substrate 19, problems with the linearity of the arrangement of the electrode patterns 20 and the accuracy of the arrangement pitch do not occur. Therefore, a high quality, highly reliable recording head can be obtained at low cost.
また、本装置では、上述のように、剛性基板1
9上に形成された記録電極パターン20を、可撓
性回路板22を介して電圧パルス印加回路28と
接続するので、可撓性回路板22の可撓性によ
り、剛性基板19に対する電圧パルス印加回路2
8の配置を自由に選択することができるという利
点も得られる。 In addition, in this device, as described above, the rigid substrate 1
Since the recording electrode pattern 20 formed on the substrate 9 is connected to the voltage pulse application circuit 28 via the flexible circuit board 22, the flexibility of the flexible circuit board 22 allows voltage pulses to be applied to the rigid substrate 19. circuit 2
Another advantage is that the arrangement of 8 can be freely selected.
なお、剛性基板19は、その長さ方向の寸法は
問題ないが、幅(第3図におけるW)は20〜40mm
程度、厚さは1.6〜2mm程度となる。したがつて、
仮に剛性基板19を中空体11の径方向に配置し
たとすると、磁石ロール12の着磁量を大きくし
ないと、剛性基板19の先端部に磁石ローラ12
による磁界が及ばなくなり、剛性基板19によつ
てトナー14の搬送が妨げられることになるし、
たとえ前記着磁量を大きくし、前記不都合が生じ
ないようにしても、装置が大型化するという欠点
が生じる。 Note that the rigid substrate 19 has no problem with its length dimension, but its width (W in FIG. 3) is 20 to 40 mm.
The degree and thickness are about 1.6 to 2 mm. Therefore,
If the rigid substrate 19 is arranged in the radial direction of the hollow body 11, unless the amount of magnetization of the magnet roll 12 is increased, the magnet roller 12 will be placed at the tip of the rigid substrate 19.
The magnetic field of
Even if the amount of magnetization is increased to avoid the above-mentioned disadvantages, the disadvantage is that the device becomes larger.
しかるに、前記実施例では、剛性基板19が中
空体11の接線方向(すなわち、磁石ローラ12
の回転軸を中心とするある径の円柱の接線方向)
に配置されているので、磁石ロール12の着磁量
を大きくしたり、装置を大型化することなく、剛
性基板19を磁石ロール12による磁界内に収容
し、剛性基板19によつてトナー14の搬送が妨
げられることのないようにすることができる。 However, in the embodiment, the rigid substrate 19 is arranged in the tangential direction of the hollow body 11 (i.e., in the direction of the magnetic roller 12
(tangential direction of a cylinder of a certain diameter centered on the axis of rotation)
Since the rigid substrate 19 is placed in the magnetic field of the magnet roll 12 without increasing the amount of magnetization of the magnet roll 12 or increasing the size of the device, the rigid substrate 19 allows the toner 14 to be Conveyance can be prevented from being hindered.
また、前記実施例では、可撓性回路板22が剛
性基板19から磁石ロール12の軸線に対し垂直
方向に立ち上がるようにしているので、剛性基板
19上を搬送されるトナー14の流れの方向が、
可撓性回路板22と平行方向となるため、可撓性
回路板22によつて剛性基板19上のトナー14
の搬送が妨げられることがない。 Further, in the embodiment, the flexible circuit board 22 is arranged to stand up from the rigid substrate 19 in a direction perpendicular to the axis of the magnet roll 12, so that the flow direction of the toner 14 conveyed on the rigid substrate 19 is fixed. ,
Since the direction is parallel to the flexible circuit board 22, the toner 14 on the rigid substrate 19 is prevented by the flexible circuit board 22.
transport is not obstructed.
第4図は本発明の他の実施例による断面図を示
す(なお、以下の実施例において、前記実施例に
おける部品と同一または相当する部品は、同一符
号をもつて示すものとする)。この実施例におけ
る中空体11は、前記実施例における中空体11
とトナーガイド17とを一体成形したものとなつ
ており、構造をより単純化することができる。 FIG. 4 shows a sectional view according to another embodiment of the present invention (in the following embodiments, parts that are the same as or correspond to those in the previous embodiments are denoted by the same reference numerals). The hollow body 11 in this embodiment is the hollow body 11 in the previous embodiment.
The toner guide 17 and the toner guide 17 are integrally molded, and the structure can be further simplified.
第5図は、本発明のさらに他の実施例による記
録ヘツドの斜視図を示し、可撓性回路板22は、
剛性基板19からの立ち上がり部分のみを図示し
ない磁石ロール12の軸に対し垂直とされ、他の
部分は剛性基板19に対し平行に折り曲げられて
いる。このように、可撓性回路板22は、剛性基
板19からの立ち上がり部分のみ、磁石ロール1
2の軸に対し垂直であればよく、他の部分はトナ
ーの搬送に影響がないので、どんな方向に向いて
いてもよい。また、前記各実施例では、可撓性回
路板22が全て直角に折り曲げられているが、曲
面状に湾曲させてもよい。 FIG. 5 shows a perspective view of a recording head according to yet another embodiment of the invention, in which the flexible circuit board 22 is
Only the portion rising from the rigid substrate 19 is perpendicular to the axis of the magnet roll 12 (not shown), and the other portions are bent parallel to the rigid substrate 19. In this way, the flexible circuit board 22 has only the rising portion from the rigid substrate 19 that is connected to the magnet roll 1.
The other portions may be oriented in any direction as long as they are perpendicular to the axis No. 2, and the other portions may be oriented in any direction as long as they do not affect the conveyance of the toner. Further, in each of the above embodiments, the flexible circuit boards 22 are all bent at right angles, but they may be bent into a curved shape.
第6図は本発明のさらに他の実施例による記録
ヘツドの斜視図を示し、記録電極パターン20の
うち、記録動作に必要ない部分を絶縁物30で被
覆またはモールドしたものであり、このようにす
れば、記録ヘツドの絶縁性を向上することができ
る。 FIG. 6 shows a perspective view of a recording head according to still another embodiment of the present invention, in which a portion of the recording electrode pattern 20 that is not necessary for the recording operation is covered or molded with an insulator 30. By doing so, the insulation properties of the recording head can be improved.
発明の効果
以上のように本発明による記録装置は、剛性基
板上に記録電極パターンを構成し、かつこれらの
電極パターンを可撓性回路板を介して電圧パルス
印加回路と接続したことにより、記録電極の高密
度化が容易で、低コスト、高品質、高信頼性の記
録ヘツドを容易に得ることができ、しかも記録ヘ
ツドに対する電圧パルス印加回路の配置を自由に
選択することができるという優れた効果を得られ
るものである。Effects of the Invention As described above, the recording device according to the present invention has recording electrode patterns formed on a rigid substrate, and these electrode patterns are connected to a voltage pulse application circuit via a flexible circuit board, thereby enabling recording. This is an excellent method in that it is easy to increase the density of electrodes, it is easy to obtain a low-cost, high-quality, and highly reliable recording head, and the arrangement of the voltage pulse application circuit to the recording head can be freely selected. It is something that can be effective.
さらに、本発明では前記剛性基板を中空体の外
周面に対しその接続と同一な方向に配置し、かつ
前記可撓性基板を磁石の回転軸に対し垂直な方向
に立ち上がるように前記剛性基板に取り付けたこ
とにより、磁石の着磁量を大きくしたり、装置を
大型化することなく、剛性基板を磁界内に収容さ
せることができ、剛性基板及び可撓性基板によつ
てトナーの搬送を妨げられることなく、記録電極
及び接続手段をそれぞれ別の基板で形成しても良
好にトナーを搬送させる効果も得ることができ
る。 Furthermore, in the present invention, the rigid substrate is arranged in the same direction as the connection with respect to the outer peripheral surface of the hollow body, and the flexible substrate is placed on the rigid substrate so as to stand up in a direction perpendicular to the rotation axis of the magnet. By attaching it, the rigid substrate can be accommodated in the magnetic field without increasing the amount of magnetization of the magnet or increasing the size of the device, and the rigid substrate and flexible substrate prevent toner transport. Even if the recording electrode and the connecting means are formed on separate substrates, the effect of good toner transport can be obtained.
第1図は従来の記録装置の断面図、第2図は本
発明の一実施例による記録装置の断面図、第3図
は同装置における記録ヘツドの分解斜視図、第4
図は本発明の他の実施例による記録装置の断面
図、第5図は本発明のさらに他の実施例による記
録ヘツドの斜視図、第6図は本発明のさらに別の
実施例による記録ヘツドの斜視図である。
11……中空体、12……磁石ロール、13…
…ホツパー、14……トナー、18……記録ヘツ
ド、19……剛性基板、20……記録電極パター
ン、22……可撓性回路板、23……可撓性基
板、24……導線パターン、25……背面電極、
27……記録媒体、28……電圧パルス印加回
路。
FIG. 1 is a cross-sectional view of a conventional recording device, FIG. 2 is a cross-sectional view of a recording device according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a recording head in the same device, and FIG.
5 is a perspective view of a recording head according to still another embodiment of the present invention, and FIG. 6 is a sectional view of a recording head according to still another embodiment of the present invention. FIG. 11...Hollow body, 12...Magnet roll, 13...
...hopper, 14...toner, 18...recording head, 19...rigid substrate, 20...recording electrode pattern, 22...flexible circuit board, 23...flexible substrate, 24...conductor pattern, 25... Back electrode,
27... Recording medium, 28... Voltage pulse application circuit.
Claims (1)
空体の内部に回転自在に収容された磁石と、この
磁石を駆動回転する駆動手段と、前記中空体の外
周面上に磁性を有するトナーを供給する手段と、
前記中空体の外周面付近に配置された多数の記録
電極と、これらの記録電極に記録媒体を挾んで対
向した位置に設けられた背面電極と、前記各記録
電極と前記背面電極との間に選択的に電圧パルス
を印加する電圧パルス印加回路と、前記記録電極
と前記電圧パルス印加回路とを電気的に接続する
接続手段とを具備し、前記記録電極は前記中空体
の外周面に対しその接線と同一方向に配置された
非磁性かつ絶縁性の剛性基板上に形成された記録
電極パターンからなり、かつ前記接続手段は前記
磁石の回転軸に対し垂直な方向に立ち上がるよう
に前記剛性基板に取り付けられた絶縁性の可撓性
基板上に形成された前記記録電極パターンの端部
と接続される導線パターンからなることを特徴と
する記録装置。1. A cylindrical hollow body made of a non-magnetic material, a magnet rotatably housed inside the hollow body, a driving means for driving and rotating the magnet, and magnetic toner on the outer peripheral surface of the hollow body. a means of supplying;
A large number of recording electrodes arranged near the outer peripheral surface of the hollow body, a back electrode provided at a position facing these recording electrodes with a recording medium sandwiched therebetween, and between each of the recording electrodes and the back electrode. The recording electrode is provided with a voltage pulse application circuit that selectively applies a voltage pulse, and a connection means that electrically connects the recording electrode and the voltage pulse application circuit, and the recording electrode is connected to the outer peripheral surface of the hollow body. It consists of a recording electrode pattern formed on a non-magnetic and insulating rigid substrate arranged in the same direction as the tangent line, and the connecting means is arranged on the rigid substrate so as to stand up in a direction perpendicular to the rotation axis of the magnet. A recording device comprising a conductor pattern connected to an end of the recording electrode pattern formed on an attached insulating flexible substrate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21530782A JPS59104958A (en) | 1982-12-07 | 1982-12-07 | Recording apparatus |
US06/558,523 US4559545A (en) | 1982-12-07 | 1983-12-06 | Recording apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21530782A JPS59104958A (en) | 1982-12-07 | 1982-12-07 | Recording apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59104958A JPS59104958A (en) | 1984-06-18 |
JPH039872B2 true JPH039872B2 (en) | 1991-02-12 |
Family
ID=16670150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21530782A Granted JPS59104958A (en) | 1982-12-07 | 1982-12-07 | Recording apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59104958A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53138731A (en) * | 1977-05-10 | 1978-12-04 | Sharp Corp | Electrostatic multi-stylus recording head |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57116950U (en) * | 1981-12-25 | 1982-07-20 |
-
1982
- 1982-12-07 JP JP21530782A patent/JPS59104958A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53138731A (en) * | 1977-05-10 | 1978-12-04 | Sharp Corp | Electrostatic multi-stylus recording head |
Also Published As
Publication number | Publication date |
---|---|
JPS59104958A (en) | 1984-06-18 |
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