EP0038456A1 - 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
EP0038456A1
EP0038456A1 EP81102550A EP81102550A EP0038456A1 EP 0038456 A1 EP0038456 A1 EP 0038456A1 EP 81102550 A EP81102550 A EP 81102550A EP 81102550 A EP81102550 A EP 81102550A EP 0038456 A1 EP0038456 A1 EP 0038456A1
Authority
EP
European Patent Office
Prior art keywords
type
carriage
print
stop
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.)
Granted
Application number
EP81102550A
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German (de)
English (en)
Other versions
EP0038456B1 (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
Original Assignee
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 claim 1.
  • the German patent application P 29 06 135.6 has proposed a printing unit for achieving a typeface with uniform character spacing, in which the type holder always executes a vocational 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.
  • the carriage executes a vocational step movement if a character which has been mistakenly printed is to be removed again from the recording medium.
  • This printing unit enables one compared to the other machines on the market much better correction, but here too, a residual character contour sometimes remains visibly on the record carrier.
  • Another disadvantage is that this arrangement works only in one direction and is therefore directional. In known machines, partially overlapping characters are also generated to emphasize a word or individual words in fonts, for which purpose separate and unidirectional arrangements are used.
  • 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 plan 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 gear wheels 33, 35 are rotatably mounted, which cooperate in a form-fitting manner with a toothed belt 37 fixedly connected to the slide 7.
  • the gear 35 is via a motor, e.g. 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, at the free ends of which the types are arranged.
  • the sum type carrier can also be a spherical head or a type cylinder.
  • the types can also be used individually with type levers in known To be connected wisely.
  • 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 in the imprint brought 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 29 is set directly by the motor 43 and therefore there is no slack between the type plate and the motor.
  • the type plate 29 is set by a motor via an elastic intermediate member, an exact correction can be achieved in that the selected characters in the two end positions of the carriage 7 are hit at least twice in immediate succession.
  • the first stop of the printing type takes place after the selected type has been positioned on the type plate 29, the type plate 29 in the direction of the arrow. 67 reaches the rotational position 71 as a result of the slack beyond the ideal rotational position 78.
  • the control device 59 triggers a step movement of the type disk 29 according to FIG. 4.
  • 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 imprint position 76 is due to the extracted lots in the opposite direction from the ideal position 78 by ⁇ .
  • the control device 59 triggers the aforementioned
  • the type plate 29 executes a pilgrim step movement in the manner described above.
  • the type plate 29 makes a rotational 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.
  • the control device 59 By moving the type disk 29 in the direction of arrow 75, the slack in the setting device for the type disk 29 is pulled out 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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  • Accessory Devices And Overall Control Thereof (AREA)
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 true EP0038456A1 (fr) 1981-10-28
EP0038456B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309818A1 (de) * 1982-03-19 1983-09-22 Canon K.K., Tokyo Druckvorrichtung mit einer druckzeichenkorrektur-einrichtung
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

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2900393A1 (de) * 1978-01-30 1979-08-02 Ibm Verfahren und vorrichtung zum tilgen bereits gedruckter unerwuenschter zeichen bei anschlagdruckern

Family Cites Families (2)

* 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
DE2906135C2 (de) * 1979-02-17 1985-07-11 Olympia Werke Ag, 2940 Wilhelmshaven Druckwerk zur Herstellung eines Schriftbildes mit gleichmäßigen Zeichenabständen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2900393A1 (de) * 1978-01-30 1979-08-02 Ibm Verfahren und vorrichtung zum tilgen bereits gedruckter unerwuenschter zeichen bei anschlagdruckern

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309818A1 (de) * 1982-03-19 1983-09-22 Canon K.K., Tokyo Druckvorrichtung mit einer druckzeichenkorrektur-einrichtung
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

Also Published As

Publication number Publication date
DE3164114D1 (en) 1984-07-19
EP0038456B1 (fr) 1984-06-13
DE3014769A1 (de) 1981-10-22
US4388005A (en) 1983-06-14

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