EP0038282B1 - Umschaltvorrichtung für ein mehrfarbiges Farbband eines Druckers, insbesondere eines Matrixdruckers - Google Patents

Umschaltvorrichtung für ein mehrfarbiges Farbband eines Druckers, insbesondere eines Matrixdruckers Download PDF

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Publication number
EP0038282B1
EP0038282B1 EP81730019A EP81730019A EP0038282B1 EP 0038282 B1 EP0038282 B1 EP 0038282B1 EP 81730019 A EP81730019 A EP 81730019A EP 81730019 A EP81730019 A EP 81730019A EP 0038282 B1 EP0038282 B1 EP 0038282B1
Authority
EP
European Patent Office
Prior art keywords
lever
coloured
ribbon guide
ribbon
actuating
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
EP81730019A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0038282A1 (de
Inventor
Manfred Grüner
Wolfgang Hendrischk
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT81730019T priority Critical patent/ATE19490T1/de
Publication of EP0038282A1 publication Critical patent/EP0038282A1/de
Application granted granted Critical
Publication of EP0038282B1 publication Critical patent/EP0038282B1/de
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
    • B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/04—Ink-ribbon guides
    • B41J35/10—Vibrator mechanisms; Driving gear therefor
    • B41J35/12—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift
    • B41J35/14—Vibrator mechanisms; Driving gear therefor adjustable, e.g. for case shift for multicolour work; for ensuring maximum life of ink ribbon; for rendering ink-ribbon inoperative

Definitions

  • the invention relates to a switching device for a multicolored ink ribbon of a printer, in particular a matrix printer, with an ink ribbon guide which can be raised and lowered between two end positions and is pivotably mounted on the print head or on its carriage, and which is operated by means of two lifting plungers articulated to one another by a connecting member and connected in parallel by two and parallel to the pivoting plane of the ribbon guide and a magnet which is pivotally connected to the connecting member and can be adjusted to a pivoting axis parallel to the pivoting axis of the ribbon guide to different color strips.
  • the switching device referred to above is known from DE-A-25 15 899.
  • This known device has a two-armed shift lever which is pivotably mounted on a bolt and which engages directly on the ribbon housing with one arm and on a connecting element referred to as a control rod with the other arm.
  • the shift lever is articulated to this connecting link.
  • the known switchover device strives for a device which operates reliably and works precisely even at a high switching frequency, but in this case dispenses with a positive connection between the switchover device and the ribbon cassette. This should make it easy to replace the ribbon cassette.
  • the known switching device may well prevent overshoot with subsequent swinging of the ink ribbon cassette at a high switching speed, even if the available switching time is very short.
  • the known switchover device suffices for only two switch positions, and the switchover speed could hardly be increased for more than two switch positions.
  • the invention has for its object to further develop the known switching device to the extent that it enables switching to four different color paths of an ink ribbon.
  • the lever is designed as a one-armed lever which acts via an actuating element on an actuating lever fastened to the ribbon guide and whose pivot axis, seen from the actuating element, lies beyond the rear of the two lifting plungers, and that the one-armed lever is articulated off-center by a connection extending from its central part to the connecting member between its two articulation axes.
  • the invention now enables switching to four different color paths of an ink ribbon. More than two positions are created by the one-armed lever articulated on the connecting member, its eccentric connection with corresponding end positions of the lifting magnets leading to a corresponding number of switching positions corresponding to the number of color tracks of the ink ribbon.
  • the actuating lever for the ribbon guide is also advantageous, as a result of which the control movements of the lever can be reliably transmitted to the ribbon guide even with long switching times.
  • the actuating member for the actuating lever is an axially under the load of a spring, guided in a guide rod on which on the one hand the free end of the actuated lever loaded by the weight of the pivotable ribbon guide abuts and on the other hand by the Spring is pressed against the free end of the one-armed lever.
  • the positive transmission, which is important for precise switching paths and for short switching times, from the lever to the ribbon guide is advantageous here.
  • an ink ribbon guide 2 is pivotally attached about an axis 4.
  • the ribbon guide 2 serves to guide an ink ribbon 20.
  • a dash-dotted line 3 indicates the center of the print line.
  • the ribbon guide 2 forms, together with a proboscis-shaped element 22, which is rigidly attached to it, a lever system 5 which is actuated via two lifting magnets 6 and 7.
  • the lifting magnets 6 and 7 have lifting plungers 8 and 9 which are connected to one another in an articulated manner via a connecting member 73.
  • an articulated connection 14 is provided with a coupling member 10, which has an approximately T-shaped shape in the embodiment shown.
  • the coupling member 10 is a one-armed lever and as such can be pivoted about a pivot axis 11 which, seen from the connection of the lever system 5, lies beyond the lifting plunger 9 of the second lifting magnet 7.
  • a spring 17 which is guided in a guide sleeve 16 and is provided on the one hand against the lever system 5 and on the other hand against the coupling member 10.
  • the non-positive connection between the lever system 5 and the coupling member 10 is achieved on the one hand by the spring 17 and on the other hand by the weight of the ribbon guide 2.
  • Fig. 2 shows a section of an ink ribbon 20 with four different color paths a, b, c and d.
  • the lifting plunger positions of the lifting magnets 6 and 7, shown schematically in FIG. 3, are necessary in order to be able to approach the individual color tracks.
  • the lifter position a means that both lifters are extended. In this case, the ribbon guide 2 assumes its lowest position, so that the ribbon a is available.
  • the lifter 9 of the two th solenoid 7 is retracted by switching off the current supply, while the lifter 8 of the first solenoid 6 maintains its extended position.
  • the device can also be used for an ink ribbon 21 with a red ink path r and a black ink path s, in which case, depending on the design of the ink ribbon guide in relation to the line to be labeled, only two adjacent plunger positions a ', b' and b ' , c 'or c', d 'can be used.

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  • Impression-Transfer Materials And Handling Thereof (AREA)
EP81730019A 1980-04-15 1981-02-19 Umschaltvorrichtung für ein mehrfarbiges Farbband eines Druckers, insbesondere eines Matrixdruckers Expired EP0038282B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81730019T ATE19490T1 (de) 1980-04-15 1981-02-19 Umschaltvorrichtung fuer ein mehrfarbiges farbband eines druckers, insbesondere eines matrixdruckers.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3014820A DE3014820C2 (de) 1980-04-15 1980-04-15 Umschaltvorrichtung für ein mehrfarbiges Farbband eines Druckers, insbesondere eines Matrixdruckers
DE3014820 1980-04-15

Publications (2)

Publication Number Publication Date
EP0038282A1 EP0038282A1 (de) 1981-10-21
EP0038282B1 true EP0038282B1 (de) 1986-04-30

Family

ID=6100316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730019A Expired EP0038282B1 (de) 1980-04-15 1981-02-19 Umschaltvorrichtung für ein mehrfarbiges Farbband eines Druckers, insbesondere eines Matrixdruckers

Country Status (5)

Country Link
US (1) US4395148A (enrdf_load_stackoverflow)
EP (1) EP0038282B1 (enrdf_load_stackoverflow)
JP (1) JPS56161189A (enrdf_load_stackoverflow)
AT (1) ATE19490T1 (enrdf_load_stackoverflow)
DE (1) DE3014820C2 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503044B1 (fr) * 1981-03-31 1987-09-11 Centronics Data Computer Imprimante a changement de couleur d'impression
JPS58134775A (ja) * 1982-02-04 1983-08-11 Seikosha Co Ltd 多色リボンカセツト
DE3212041A1 (de) * 1982-03-29 1983-10-06 Mannesmann Ag Drucker, insbesondere matrixdrucker, mit einem mehrfarbenband, und verfahren zum betreiben des druckers
JPS591293A (ja) * 1982-06-25 1984-01-06 Brother Ind Ltd タイプライタ−のリボンリフト機構
JPS6046285A (ja) * 1983-08-24 1985-03-13 Alps Electric Co Ltd 熱転写プリンタ
US4568209A (en) * 1983-10-17 1986-02-04 Centronics Data Computer Corp. Multicolor dot matrix printing system
USRE33038E (en) * 1983-10-17 1989-08-29 Genicom Corporation Dot matrix printing system
US4605326A (en) * 1985-03-22 1986-08-12 The United States Of America As Represented By The Secretary Of The Army Dot matrix color printer
JPS6291814A (ja) * 1985-10-18 1987-04-27 Yokogawa Electric Corp カラ−ドツトレコ−ダ
US4745386A (en) * 1986-06-27 1988-05-17 Smith Corona Corporation Solenoid device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312849B2 (enrdf_load_stackoverflow) * 1972-09-29 1978-05-04
DE2512337C3 (de) * 1975-03-20 1979-06-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung für Druckmaschinen zur Umschaltung der Farbbandgabel
DE2514024C3 (de) * 1975-03-29 1984-01-05 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg Summiergetriebe für Schreib-, Rechen-, Buchungs- o.ä. Büromaschinen
DE2515899C3 (de) * 1975-04-11 1978-03-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Zweifarbenumschaltvorrichtung für Farbbandkassetten
GB2029327B (en) * 1978-09-02 1982-08-25 Ibm Printing apparatus

Also Published As

Publication number Publication date
EP0038282A1 (de) 1981-10-21
ATE19490T1 (de) 1986-05-15
JPS56161189A (en) 1981-12-11
JPS6219313B2 (enrdf_load_stackoverflow) 1987-04-27
US4395148A (en) 1983-07-26
DE3014820A1 (de) 1981-10-22
DE3014820C2 (de) 1984-10-31

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