EP0514038A2 - Capteur de position linéaire pour imprimante - Google Patents

Capteur de position linéaire pour imprimante Download PDF

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Publication number
EP0514038A2
EP0514038A2 EP92303843A EP92303843A EP0514038A2 EP 0514038 A2 EP0514038 A2 EP 0514038A2 EP 92303843 A EP92303843 A EP 92303843A EP 92303843 A EP92303843 A EP 92303843A EP 0514038 A2 EP0514038 A2 EP 0514038A2
Authority
EP
European Patent Office
Prior art keywords
recording medium
printing machine
magnetic recording
magnetic
long member
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.)
Withdrawn
Application number
EP92303843A
Other languages
German (de)
English (en)
Other versions
EP0514038A3 (en
Inventor
Noritaka Ishiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Steel Mfg Co Ltd
Original Assignee
Mitsubishi Steel Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Steel Mfg Co Ltd filed Critical Mitsubishi Steel Mfg Co Ltd
Publication of EP0514038A2 publication Critical patent/EP0514038A2/fr
Publication of EP0514038A3 publication Critical patent/EP0514038A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/20—Positive-feed character-spacing mechanisms
    • B41J19/202—Drive control means for carriage movement
    • 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
    • B41J27/00—Inking apparatus

Definitions

  • the present invention relates to a printing machine for a printer using a magnetic linear encoder.
  • An object of the present invention is to provide a printer printing machine having high reliability even under an environment in which the machine is easily contaminated.
  • the printer printing machine of the present invention which controls the position by use of the linear encoder, uses a high resolving magnetic recording medium, which is formed of an alloy containing iron, chrome and cobalt (hereinafter simply called as an alloy), as a memory of the linear encoder, and detects the magnetic record by a magnetic head.
  • a high resolving magnetic recording medium which is formed of an alloy containing iron, chrome and cobalt (hereinafter simply called as an alloy), as a memory of the linear encoder, and detects the magnetic record by a magnetic head.
  • the composition of the alloy can be freely set in accordance with a requested magnetic characteristics. It is preferable that the composition of the alloy consist of chrome: 13 to 32%, cobalt: 5 to 20%, and iron: residue, by weight % (herein simply expressed as %). In particular, it is preferable that the composition of the alloy consist of chrome: 16 to 25%, cobalt: 7 to 16%, and iron: residue. Moreover, in order to improve machinability and a magnetic characteristic, 0.05 to 3% of each of titanium, vanadium, molybdenum, and tungsten may be added.
  • the magnetic recording medium is long-shaped such as a wire or a band.
  • the cross section of the recording medium is formed such that a magnetic recording surface and a bottom surface thereof are parallel to each other:
  • the detecting head must be precisely moved to be parallel to the recording medium. If the magnetic recording surface is parallel to the bottom surface, the bottom surface which act as a fixing surface of the recording medium and the parallel movement mechanism are easily adjusted, thereby the recording surface and the detecting head can be automatically moved parallel to each other with precision. By use of the above-mentioned structure, assembly can be made easy.
  • the magnetic head to be used in the printer printing machine of the present invention may be a well known magnetic sensor of magneto-resistance effect type. It is preferably possible to use a magnetic sensor of magneto-resistance effect type, which can obtain an effective output even in a high temperature atmosphere as disclosed in Patent Application No. Hei 2-199123.
  • the magnetic head As a mounting mechanism of the magnetic head, it is preferable to use a mechanism in which the magnetic head is formed in a gap holding part, which is movably fitted to the long magnetic recording medium, and the gap holding part moves along the long magnetic recording medium.
  • the gap holding part and the long magnetic recording medium may be relatively moved.
  • the long magnetic recording medium may be movable.
  • Reference numeral (1) denotes a wire-shaped magnetic recording medium.
  • the magnetic recording medium is formed by the way that an alloy material containing iron, chrome and cobalt is processed to be wire-shaped by the well-known method such as rolling and drawing, thereafter an N pole and an S pole are alternately magnetized.
  • Reference (2) denotes a gap holding part having a magnetic head.
  • the above part may be structured as specifically shown in Fig. 2.
  • a magnetic element mount (11) whose cross section is U-shaped is mounted on the wire-shaped magnetic recording medium (1).
  • a magnetic sensor (13) is fixed onto the magnetic element mount (11).
  • a bearing (14) which has a hole into which a round bar-like magnetic recording medium is inserted in its central portion, is fixed to both ends of the magnetic element mount (11). Since the magnetic element mount (11) slides along the rod-shaped magnetic recording medium (1), serving as an axis, together with the magnetic sensor (13), the rod-shaped magnetic recording medium (1) is arranged to be floated in the hollow.
  • Reference numeral (3) denotes a printing head.
  • various types of printing heads such as an ink jet type, a dot impact type, a laser printer, and a thermal transferring type may be used.
  • Reference numeral (4) denotes a slide guide shaft for guiding a printing head.
  • the guide mechanism other than one shown in the drawing may be used.
  • Fig. 3 shows a gap holding mechanism (5) of the other embodiment of the present invention.
  • the magnetic head (2) is supported by a magnetic head support (6) so as to face the magnetic recording medium (1).
  • the magnetic head support (6) is guided by a support guide (7).
  • the gap between the magnetic head (2) and the magnetic recording medium (1) can be maintained to be a suitable value.
  • the magnetic recording medium is formed by that an alloy material containing iron, chrome and cobalt is processed to a bar-shape with a rectangular cross section by the well-known method such as rolling and drawing, thereafter an N pole and an S pole are alternately magnetized over the surface of the bar.
  • the magnetic head uses a magneto-resistance effect element, and is fixed to a printing head of a printer printing machine.
  • the printer printing machine uses a printing head such as an ink jet type, a dot impact type, and a thermal transferring type.
  • the printing mechanism moves in relative to a printing paper.
  • the magnetic recording medium is fixed to a body of the printer printing machine.
  • the magnetic detecting surface of the magnetic head (2) fixed to the printing head and the magnetized surface of the magnetic recording medium (1) face each other, and are controlled through the gap holding mechanism (5) so as to maintain the gap having a constant distance.
  • the magnetic recording medium (1) and the magnetic head (2) can be used in a mechanically non-contact state and no sliding resistance state.
  • the printer printing machine of the present invention brings about the following effects.
EP19920303843 1991-05-16 1992-04-29 Printing machine Withdrawn EP0514038A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP139413/91 1991-05-16
JP3139413A JPH04339670A (ja) 1991-05-16 1991-05-16 プリンタ印字機械

Publications (2)

Publication Number Publication Date
EP0514038A2 true EP0514038A2 (fr) 1992-11-19
EP0514038A3 EP0514038A3 (en) 1993-01-20

Family

ID=15244656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920303843 Withdrawn EP0514038A3 (en) 1991-05-16 1992-04-29 Printing machine

Country Status (3)

Country Link
EP (1) EP0514038A3 (fr)
JP (1) JPH04339670A (fr)
KR (1) KR920021333A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043168A2 (fr) * 1999-04-06 2000-10-11 Alps Electric Co., Ltd. Imprimante thermique et son procédé d'enregistrement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189878A (ja) * 1984-10-11 1986-05-08 Fujitsu Ltd 磁気記録可能なベルト
US4838717A (en) * 1987-01-28 1989-06-13 Chinon Kabushiki Kaisha Serial dot matrix printer
JPH0261519A (ja) * 1988-08-26 1990-03-01 Yamaha Corp 磁気式エンコーダ用磁気記録媒体
EP0372844A2 (fr) * 1988-12-02 1990-06-13 Ncr International Inc. Méthode de commande d'une imprimante

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62148280A (ja) * 1985-12-23 1987-07-02 Nec Home Electronics Ltd プリンタの印字位置検出装置
JPS62226007A (ja) * 1986-03-28 1987-10-05 Hitachi Metals Ltd プリンタ−用位置検出装置
JPH01103476A (ja) * 1987-10-17 1989-04-20 Tokin Corp プリンタ用ヘッドキャリッジの送り速度制御装置
JPH01247179A (ja) * 1988-03-28 1989-10-03 Nec Corp シリアル式ドットマトリクスプリンタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6189878A (ja) * 1984-10-11 1986-05-08 Fujitsu Ltd 磁気記録可能なベルト
US4838717A (en) * 1987-01-28 1989-06-13 Chinon Kabushiki Kaisha Serial dot matrix printer
JPH0261519A (ja) * 1988-08-26 1990-03-01 Yamaha Corp 磁気式エンコーダ用磁気記録媒体
EP0372844A2 (fr) * 1988-12-02 1990-06-13 Ncr International Inc. Méthode de commande d'une imprimante

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Week 9015, Derwent Publications Ltd., London, GB; AN 90-111418 & JP-A-2 061 519 (YAMAHA CORP.) 1 March 1990 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 265 (M-515)(2321) 10 September 1986 & JP-A-61 089 878 ( FUJITSU LTD. ) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043168A2 (fr) * 1999-04-06 2000-10-11 Alps Electric Co., Ltd. Imprimante thermique et son procédé d'enregistrement
EP1043168A3 (fr) * 1999-04-06 2001-01-31 Alps Electric Co., Ltd. Imprimante thermique et son procédé d'enregistrement
US6364443B1 (en) 1999-04-06 2002-04-02 Alps Electric Co., Ltd. Thermal printer and recording method thereof

Also Published As

Publication number Publication date
JPH04339670A (ja) 1992-11-26
EP0514038A3 (en) 1993-01-20
KR920021333A (ko) 1992-12-18

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