EP0038456B1 - Méthode pour la production de caractères se couvrant partiellement sur un porteur enregistreur dans des machines à écrire ou machines de bureau analogues - Google Patents

Méthode pour la production de caractères se couvrant partiellement sur un porteur enregistreur dans des machines à écrire ou machines de bureau analogues Download PDF

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Publication number
EP0038456B1
EP0038456B1 EP81102550A EP81102550A EP0038456B1 EP 0038456 B1 EP0038456 B1 EP 0038456B1 EP 81102550 A EP81102550 A EP 81102550A EP 81102550 A EP81102550 A EP 81102550A EP 0038456 B1 EP0038456 B1 EP 0038456B1
Authority
EP
European Patent Office
Prior art keywords
type
carriage
printing
positioning
recording medium
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
Application number
EP81102550A
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German (de)
English (en)
Other versions
EP0038456A1 (fr
Inventor
Hans Wehking
Detlef Eichler
Wolfgang Klingenberg
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.)
Olympia Werke AG
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Olympia Werke AG
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 Olympia Werke AG filed Critical Olympia Werke AG
Publication of EP0038456A1 publication Critical patent/EP0038456A1/fr
Application granted granted Critical
Publication of EP0038456B1 publication Critical patent/EP0038456B1/fr
Expired 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/26—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
    • B41J29/36—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling for cancelling or correcting errors by overprinting

Definitions

  • the invention relates to a method for generating closely offset and partially overlapping characters on a record carrier in typewriters or similar office machines of the type specified in the preamble of the claim.
  • Patent application EP-A-0014948 has proposed a printing unit for achieving a typeface with uniform character spacing, in which the type holder always executes a U step movement in the same direction and with the same step size after his setting process. This creates the same stop conditions, since any lots are always pulled out on one side.
  • this proposed printing unit the carriage executes a U step movement if a character which has been mistakenly printed is to be removed again from the recording medium.
  • this printing unit enables a much better correction, but even here, a residual character contour sometimes remains visibly on the recording medium.
  • DE-A-2 900 393 a method for producing closely offset and partially overlapping type impressions is known, one impression being made to the left and one to the right of the first impression location.
  • the relative movement required for this purpose between the record carrier and the print type of the type carrier is carried out by parallel displacement of the type carrier in the line direction.
  • the lots of the type holder can be pulled out in the row direction, but not in the direction of rotation. It is therefore also possible that residual character contours remain on the recording medium.
  • the invention has for its object to provide a typewriter or similar office machine with a device for generating partially overlapping characters that can be used for a direction-independent writing operation.
  • FIG. 1 shows a top view of a type plate printer 1 of a typewriter or similar office machine, a carriage 7 being mounted on axes 9, (11) so as to be longitudinally displaceable between side walls 3, 5.
  • the carriage 7 has a base plate 13, which has a type disk drive arrangement 15 shown in FIG. 1 and a type stop device with a pressure hammer 17 and an electromagnet 19.
  • On this base plate 13 there is also an ink ribbon cassette 21 with an ink ribbon 22 which is guided by means of guides 23, 25 between the recording medium 27 and the rotatably mounted type disk 29.
  • an extinguishing device with an extinguishing belt 99, which can be unwound from a supply reel 100 by a transport device, not shown, and rewound onto a reel spool 102.
  • the record carrier 27 can be driven in a known manner via a paper roller 31, which can be driven via a motor (not shown).
  • two drive gears 33, 35 are rotatably mounted, which cooperate in a form-fitting manner with a toothed belt 37 firmly connected to the slide 7.
  • the gear 35 is via a motor, for. B. driven by a stepper motor 39 in both walking directions.
  • the type disk 29 designed as a sum type carrier has a large number of elastic type lamellae, on the free of which Ends the types are arranged.
  • the sum type carrier can also be a spherical head or a type cylinder.
  • the types can also be connected individually with type levers in a known manner.
  • the type plate 29 is via a motor which can be operated in the start-stop mode, for. B. stepper motor 43 gradually adjustable.
  • an optical coding disk 47 is fastened, which interacts with a light source 49 and a plurality of light-sensitive elements 53 arranged in the housing 51, see FIG. 2.
  • coded signals 57 corresponding to the characters to be printed are sent from a keyboard 55 to a control element 59, which can be a microprocessor or a commercially available computer.
  • the control element 59 receives the data, carries out certain calculations and sends corresponding drive pulses via amplifiers 61 and 63 to the sled stepper motor 39 and to the typewriter stepper motor 43. If the sled stepper motor 39 has been subjected to 12 drive pulses in half-step operation, then the sled 7 has become 1/12 inch pitch moved one print position.
  • the type plate stepper motor 43 requires four drive pulses to move the type plate by one character spacing.
  • the electromagnet 19 for the hammer 17 also receives drive pulses from the control element 59 via an amplifier 65.
  • the correction method described above is suitable for direction-independent writing operation, the mechanical and control-related backlashes between the stepper motor 39, the cable 37 and the slide 7 being pulled out in both directions in the simplest way.
  • the carriage 7 z. B. by pressing a backspace key in the keyboard 55 by means of the motor 39 from the position 83 in the direction of arrow 85 into the print position 98. Due to the above-mentioned conditional lots, the carriage 7 does not reach the desired ideal impression position 87, but rather the position 98, which deviates from the impression position 87 by a fraction of a switching step.
  • the control device 59 brings the correction device into the working position and emits a trigger signal via the amplifier 65 to the electromagnet 19, which generates a first erasure impression on the recording medium 27 by means of the printing hammer 17.
  • the control device 59 triggers a movement of the carriage 7 by a few elementary steps, each of which is a fraction ⁇ s of a switching step, from the position 98 in the positioning direction 85 of the carriage 7 last executed in the direction 86 and then an opposite positioning direction from the position 90 by same elementary step number in the impression position 92.
  • the arrangement according to the invention is suitable for direction-independent writing operation, the first step of the pilgrimage step also being carried out in the direction of the arrow 89 when the impression position 87 is approached in the direction of the arrow 89.
  • the first impression is made in position 92 and the second impression in position 98.
  • the type plate performs a rotary movement by a few elementary steps, each of which is a fraction of a switching step, from the imprint position 71 in the last direction of positioning in the direction of arrow 72 and an opposite positioning in the direction of arrow 74 by the same number of elementary steps in the imprint position.
  • This impression position position 76 is due to the drawn out lots in the opposite direction from the ideal position position 78 by ⁇ J °.
  • the type plate 29 executes a rotary movement in the manner described above.
  • the type disc 29 makes a rotary movement from the rotational position 76 in the direction of arrow 73 by a few elementary steps in the positioning direction last carried out and then an opposite positioning in direction 75 by the same number of elementary steps in the rotational position 71 Pulled loose in the setting device for the type plate 29 in the other direction of rotation.
  • the control device 59 now triggers the hammer movement of the print hammer 17 and thus the second stop on the recording medium 27 via the amplifier 65 and the electromagnet 19.
  • the pilgrim step movement of the carriage 7 or the type disk 29 described above can also be used to generate bold letters.
  • the platen roller When correcting a character or a word in a previous line, the platen roller makes a mitage movement such that when a line is driven from the opposite direction to the line writing direction, the platen roller 31 is rotated a certain distance than is necessary. Then there is a reversal of the rotary movement of the platen roller 31 for adjustment to the desired line, the correction being then carried out in one of the methods described above.

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Claims (1)

  1. Procédé pour obtenir des impressions de caractères étroitement décalées les unes des autres et se chevauchant partiellement sur un support d'écriture (27) dans des machines à écrire ou machines de bureau analogues, procédé pouvant être utilisé pour effacer des signes et dans lequel, entre le support d'écriture (27) et la tête d'impression (7, 29) mobile à volonté dans la direction des lignes, un mouvement relatif des impressions de caractère successives est provoqué par un déplacement à deux positions de travail du chariot (7) supportant la tête d'impression (7, 29), et dans lequel la tête d'impression (7, 29), installée sur le chariot (7) et déplaçable par un entraînement de ce chariot dans la direction des lignes, consiste en un disque (29) porte-caractères qui, présentant un grand nombre de lamelles élastiques porte-caractères, peut être ajusté pas à pas par l'intermédiaire d'un moteur fonctionnant en mode marche-arrêt et dont les caractères d'impression sont imprimés sur le support d'écriture (27) par un dispositif de frappe de ces caractères, procédé caractérisé par le fait que les signes d'écriture sélectionnés sont frappés chacun au moins deux fois en une succession temporelle immédiate lorsque le chariot (7) occupe ses deux positions de travail, procédé dans lequel, dans la première position de travail, la première frappe a lieu après le positionnement du caractère sélectionné du disque (29) porte-caractères et la seconde frappe s'effectue en mode pas à pas après un mouvement rotatoire du disque (29) porte-caractères, de quelques pas élémentaires représentant chacun une fraction d'un pas de commutation, à partir de la position d'impression dans la direction de positionnement déterminée en dernier lieu et d'un positionnement successif dans le sens inverse, du même nombre de pas élémentaires, jusqu'à la position d'impression ; et dans lequel, dans la seconde position de travail après un mode opératoire en pas à pas du chariot (7) identique au mode opératoire en pas à pas du disque (29) porte-caractères, la première frappe a lieu ensuite et la seconde frappe s'effectue après un mouvement rotatoire du disque (29) porte-caractères, de quelques pas élémentaires, à partir de la position d'impression dans la direction de positionnement déterminée en dernier lieu, puis d'un positionnement consécutif dans le sens opposé, du même nombre de pas élémentaires, jusqu'à la position d'impression.
EP81102550A 1980-04-17 1981-04-04 Méthode pour la production de caractères se couvrant partiellement sur un porteur enregistreur dans des machines à écrire ou machines de bureau analogues Expired EP0038456B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3014769 1980-04-17
DE19803014769 DE3014769A1 (de) 1980-04-17 1980-04-17 Verfahren zur erzeugung von soch teilweise ueberdeckenden schriftzeichen auf einem aufzeichnungstraeger in schreib- o.ae. brueomaschinen

Publications (2)

Publication Number Publication Date
EP0038456A1 EP0038456A1 (fr) 1981-10-28
EP0038456B1 true EP0038456B1 (fr) 1984-06-13

Family

ID=6100274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102550A Expired EP0038456B1 (fr) 1980-04-17 1981-04-04 Méthode pour la production de caractères se couvrant partiellement sur un porteur enregistreur dans des machines à écrire ou machines de bureau analogues

Country Status (3)

Country Link
US (1) US4388005A (fr)
EP (1) EP0038456B1 (fr)
DE (2) DE3014769A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160181A (ja) * 1982-03-19 1983-09-22 Canon Inc 印字装置
DE3224537A1 (de) * 1982-07-01 1984-01-05 Olympia Werke Ag, 2940 Wilhelmshaven Verfahren und einrichtung zur erzeugung fetter schrift
JPS59158280A (ja) * 1983-02-28 1984-09-07 Canon Inc 印字装置
JPS6094399A (ja) * 1983-10-28 1985-05-27 ブラザー工業株式会社 ペン記録装置
GB2154949B (en) * 1984-01-31 1988-04-27 Canon Kk Selective printer
DE3507335A1 (de) * 1984-03-01 1985-09-05 Canon K.K., Tokio/Tokyo Aufzeichnungsgeraet
CA1256817A (fr) * 1984-11-27 1989-07-04 Takeo Tsumura Methode de correction d'erreurs de dactylographie
JPS61225089A (ja) * 1985-03-29 1986-10-06 Brother Ind Ltd 消去機能付ペン記録装置
DE3512575C1 (de) * 1985-04-06 1986-10-16 TA Triumph-Adler AG, 8500 Nürnberg Verfahren zum Löschen irrtümlich abgedruckter Schriftzeichen bei Schreib- oder ähnlichen Büromaschinen
US4818130A (en) * 1986-11-19 1989-04-04 Brother Kogyo Kabushiki Kaisha Character erasable printing apparatus including selective erasing of variable length underline
US5257869A (en) * 1987-01-28 1993-11-02 Canon Kabushiki Kaisha Print carriage positioning with normal and precision modes
JPS63242583A (ja) * 1987-03-28 1988-10-07 Brother Ind Ltd 文字消去可能な印字装置
JPS63274551A (ja) * 1987-05-07 1988-11-11 Brother Ind Ltd ボ−ルド印字可能な印字装置
JPH01171971A (ja) * 1987-12-28 1989-07-06 Sharp Corp 電子タイプライタのコレクション制御方法
JPH026168A (ja) * 1988-06-24 1990-01-10 Brother Ind Ltd 印字装置
JP2003076666A (ja) * 2001-08-31 2003-03-14 Sony Corp 携帯型情報端末装置および情報表示制御方法、記録媒体、並びにプログラム
US20070236726A1 (en) * 2006-04-11 2007-10-11 Robb Mark A Print enhancement method and system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307971A (en) * 1978-01-30 1981-12-29 International Business Machines Corporation Sideshift erase apparatus and method for impact printers
CA1097582A (fr) * 1978-01-30 1981-03-17 Milburn H. Kane, Iii Traduction non-disponible
DE2906135C2 (de) * 1979-02-17 1985-07-11 Olympia Werke Ag, 2940 Wilhelmshaven Druckwerk zur Herstellung eines Schriftbildes mit gleichmäßigen Zeichenabständen

Also Published As

Publication number Publication date
DE3164114D1 (en) 1984-07-19
US4388005A (en) 1983-06-14
DE3014769A1 (de) 1981-10-22
EP0038456A1 (fr) 1981-10-28

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