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 PDFInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
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.
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
Claims (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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
DE3014769 | 1980-04-17 |
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)
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)
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 |
-
1980
- 1980-04-17 DE DE19803014769 patent/DE3014769A1/de not_active Withdrawn
-
1981
- 1981-04-04 DE DE8181102550T patent/DE3164114D1/de not_active Expired
- 1981-04-04 EP EP81102550A patent/EP0038456B1/fr not_active Expired
- 1981-04-17 US US06/257,479 patent/US4388005A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3014769A1 (de) | 1981-10-22 |
DE3164114D1 (en) | 1984-07-19 |
US4388005A (en) | 1983-06-14 |
EP0038456A1 (fr) | 1981-10-28 |
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