EP0083080B1 - Printing device with integrated printhead attachment and adjustment - Google Patents

Printing device with integrated printhead attachment and adjustment Download PDF

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Publication number
EP0083080B1
EP0083080B1 EP82111938A EP82111938A EP0083080B1 EP 0083080 B1 EP0083080 B1 EP 0083080B1 EP 82111938 A EP82111938 A EP 82111938A EP 82111938 A EP82111938 A EP 82111938A EP 0083080 B1 EP0083080 B1 EP 0083080B1
Authority
EP
European Patent Office
Prior art keywords
printing
printing head
printer carriage
bearing element
eccentric
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
EP82111938A
Other languages
German (de)
French (fr)
Other versions
EP0083080A1 (en
Inventor
Otmar Ing. Grad. Irro
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0083080A1 publication Critical patent/EP0083080A1/en
Application granted granted Critical
Publication of EP0083080B1 publication Critical patent/EP0083080B1/en
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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/34—Bodily-changeable print heads or carriages
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/20—Platen adjustments for varying the strength of impression, for a varying number of papers, for wear or for alignment, or for print gap adjustment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2102—Adjustable

Definitions

  • the invention relates to a printing device with a printhead arranged on a printer carriage, a fastening device for releasably fastening the printhead to the printer carriage and an adjusting device for adjusting the distance between the printhead and a platen.
  • the controls of the fastener z. B. consist of a clamping device by means of which the print head can be attached to the printer carriage or can be released again if necessary.
  • the setting of different distances between the print head and the platen depends on the thickness of the material to be printed, e.g. B. paper, or from the number of copies desired. Since manufacturing tolerances arise during the manufacture of the print head, which also affect their spacing when the print head is assigned to the print substrate, a basic setting is first made which compensates for the production tolerances and clearly defines the distance between the print head and the print substrate. Since this basic setting is carried out by the manufacturing plant, it is also called the factory setting, which the customer can no longer adjust. The customer can only change the distance between the print head and the platen by the so-called customer setting, which is fixed by the factory setting.
  • the invention has for its object to provide a fastening device and an adjusting device that eliminates the above disadvantages and that is easy to use.
  • the eccentric is arranged on the bearing element and engages in a fit provided on the print head.
  • the advantages achieved by the invention are in particular the customer-friendly printhead setting and, if necessary, a customer-friendly printhead change, since no loose parts can be lost.
  • the print head is attached to the printer carriage without play by the resilient operating element.
  • the insertion of an ink ribbon is made very easy by setting a large distance between the printhead and the printing platen.
  • a part of the printer carriage 2 is shown on which the print head 1, for. B. a needle print head by means of the pin 3 is guided.
  • a bearing element 5 is rotatably attached to the printer carriage 2.
  • the bearing element 5 is designed as a bolt which is inserted into the bore 11 of the printer carriage 2.
  • the bearing element 5 is rigidly connected to an operating element 6.
  • the control element 6 is designed as a lever and resiliently rests on a support surface 13 of the print head 1.
  • a spring element 4 is provided in the area of the bore 11.
  • the spring element 4 can, for. B. can be realized as a compression spring, leaf spring or plate spring.
  • a compression spring is used as the spring element 4, which surrounds the bearing element 5 in the region of the bore 11 of the printer carriage 2.
  • the bearing element 5 including the control element 6 is now pulled out a little from the bore 11 so that the compression spring is tensioned.
  • the control element 6 is placed on the bearing surface 13 of the print head 1, so that the print head 1 is pressed firmly against the printer carriage 2.
  • a print head 1 and the platen 9 require a device which converts the rotary movement of the bearing element 5 or the control element 6 into a translatory movement.
  • an eccentric 7 is provided, which is arranged on the bearing element 5.
  • the bearing element 5 engages via the eccentric 7 in the print head 1, which is displaceably guided on the printer carriage 2 by the pins 3.
  • a fit 12 surrounding it is attached to the print head 1.
  • a hexagon 10 is also mounted on the bearing element 5, onto which the eccentric 7 is attached.
  • a fixedly defined distance a is defined between the print head 1 and the platen 9.
  • the control element 6 is in a certain locking position, for. B. rotated into the recess K1 on the support surface 13 of the print head 1 and this setting fixed by the hexagon nut 8.
  • 13 further latching recesses K2, K3 are provided on the support surface, into which the control element 6 engages.
  • the eccentric 7 moves the print head 1 towards or away from the printing platen 9.
  • Each latching recess K1, K2, K3 is assigned a certain distance a between the print head 1 and the platen 9.
  • the engagement of the control element 6 in the two locking recesses K1 and K2 is, depending on the thickness of the material to be printed, for. B. Paper selected. Additional recesses are required for possible intermediate positions.
  • the print head 1 is so far away from the counterpart 9 that it is possible to change the ink ribbon without soiling the hands.

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  • Common Mechanisms (AREA)

Description

Die Erfindung betrifft eine Druckeinrichtung mit einem auf einem Druckerwagen angeordneten Druckkopf, einer Befestigungseinrichtung zum lösbaren Befestigen des Druckkopfes auf dem Druckerwagen und einer Einstellvorrichtung zur Einstellung des Abstandes zwischen dem Druckkopf und einer Druckgegenlage.The invention relates to a printing device with a printhead arranged on a printer carriage, a fastening device for releasably fastening the printhead to the printer carriage and an adjusting device for adjusting the distance between the printhead and a platen.

Bei derartigen Druckeinrichtungen ist es bekannt, für die Befestigungseinrichtung und die Einstellvorrichtung jeweils eigene Bedienteile vorzusehen. So können die Bedienteile der Befestigungseinrichtung z. B. aus einer Klemmvorrichtung bestehen, mit deren Hilfe der Druckkopf auf dem Druckerwagen befestigt oder im Bedarfsfall wieder gelöst werden kann. Die Einstellung verschiedener Abstände zwischen dem Druckkopf und der Druckgegenlage hängt von der Dicke des zu bedruckenden Materials, z. B. Papier, oder von der Anzahl der gewünschten Druckexemplare ab. Da bei der Herstellung des Druckkopfes Fertigungstoleranzen entstehen, die sich bei einer Zuordnung des Druckkopfes zur Druckgegenlage auch auf deren Abstand auswirken, wird zunächst eine Grundeinstellung vorgenommen, die die Fertigungstoleranzen ausgleicht und den Abstand zwischen dem Druckkopf und der Druckgegenlage eindeutig definiert. Da diese Grundeinstellung von dem fertigenden Werk durchgeführt wird, wird sie auch Werkseinstellung genannt, die der benutzende Kunde nicht mehr verstellen kann. Der Kunde kann lediglich durch die sogenannte Kundeneinstellung den durch die Werkseinstellung fest vorgegebenen Abstand zwischen dem Druckkopf und der Druckgegenlage ändern.With such printing devices, it is known to provide separate operating parts for the fastening device and the adjusting device. So the controls of the fastener z. B. consist of a clamping device by means of which the print head can be attached to the printer carriage or can be released again if necessary. The setting of different distances between the print head and the platen depends on the thickness of the material to be printed, e.g. B. paper, or from the number of copies desired. Since manufacturing tolerances arise during the manufacture of the print head, which also affect their spacing when the print head is assigned to the print substrate, a basic setting is first made which compensates for the production tolerances and clearly defines the distance between the print head and the print substrate. Since this basic setting is carried out by the manufacturing plant, it is also called the factory setting, which the customer can no longer adjust. The customer can only change the distance between the print head and the platen by the so-called customer setting, which is fixed by the factory setting.

Doch weist eine Druckeinrichtung mit einer derartigen Befestigungseinrichtung und Einstellvorrichtung erhebliche Nachteile auf. So ist die Kundeneinstellung sehr umständlich, da sie oft nur mit Hilfsmitteln, wie z. B. einem Schlüssel, zur Lockerung bestimmter Teile in der Druckeinrichtung durchführbar ist. Hierdurch entstehen mehrere lose Teile, die leicht verlierbar sind. Daher ist eine derartige Ausführung sehr aufwendig und teuer.However, a printing device with such a fastening device and adjusting device has considerable disadvantages. So the customer attitude is very cumbersome, since it often only with tools such. B. a key to loosen certain parts in the printing device. This creates several loose parts that are easily lost. Such a design is therefore very complex and expensive.

Der Erfindung liegt die Aufgabe zugrunde, eine Befestigungseinrichtung und eine Einstellvorrichtung anzugeben, die die obengenannten Nachteile beseitigt und die in einfacher Weise zu bedienen ist.The invention has for its object to provide a fastening device and an adjusting device that eliminates the above disadvantages and that is easy to use.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine die Funktionen der Befestigungseinrichtung und der Einstellvorrichtung gemeinsam umfassende, integrierte Druckkopfbefestigung vorgesehen ist, mit einem am Drukkerwagen drehbar befestigten Lagerelement, das mit einem auf einer Auflagefläche des Druckkopfes federnd aufsitzenden Bedienelement in starrer Verbindung steht und über einen Exzenter in den auf dem Druckerwagen verschiebbar geführten Druckkopf eingreift, und daß zur Lösung des Druckkopfes (1) vom Drukkerwagen (2) das Bedienelement (6) mit dem Lagerelement (5) in eine dieses Lösen ermöglichende Stellung, in der das Bedienelement (6) die Auflagefläche (13) nicht mehr beruhrt, verdrehbar ist.This object is achieved in that the functions of the fastening device and the adjusting device are provided together, integrated printhead fastening, with a rotatably mounted on the printer carriage bearing element, which is rigidly connected to an operating element resiliently seated on a bearing surface of the printhead and via a Eccentric engages in the print head, which is displaceably guided on the printer carriage, and that to release the print head (1) from the printer carriage (2), the control element (6) with the bearing element (5) into a position which enables this release, in which the control element (6) the contact surface (13) is no longer touched, can be rotated.

In einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß der Exzenter auf dem Lagerelement angeordnet ist und in eine am Druckkopf vorgesehene Paßform eingreift.In an advantageous embodiment of the invention it is provided that the eccentric is arranged on the bearing element and engages in a fit provided on the print head.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Absprüchen 3 bis 6 angegeben.Further advantageous refinements of the invention are specified in claims 3 to 6.

Neben der sehr einfachen Bedienung durch die Verwendung einer integrierten Druckkopfbefestigung bestehen die mit der Erfindung erzielten Vorteile insbesondere in der kundenfreundlichen Druckkopfeinstellung und bei Bedarf in einem kundenfreundlichen Druckkopfwechsel, da keine losen verlierbaren Teile entstehen. Darüber hinaus ist der Druckkopf durch das federnd aufsitzende Bedienelement spielfrei an dem Druckerwagen befestigt. Weiterhin wird durch die Einstellung eines großen Abstandes des Druckkopfes zur Druckgegenlage das Einlegen eines Farbbandes sehr erleichtert.In addition to the very simple operation through the use of an integrated printhead attachment, the advantages achieved by the invention are in particular the customer-friendly printhead setting and, if necessary, a customer-friendly printhead change, since no loose parts can be lost. In addition, the print head is attached to the printer carriage without play by the resilient operating element. Furthermore, the insertion of an ink ribbon is made very easy by setting a large distance between the printhead and the printing platen.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and will be described in more detail below.

Es zeigt

  • Fig. 1 eine Seitenansicht der Befestigungseinrichtung und Einstellvorrichtung gemäß der Erfindung in einem Schnitt,
  • Fig. 2 eine Draufsicht der Befestigungseinrichtung und Einstellvorrichtung nach Fig. 1.
It shows
  • 1 is a side view of the fastening device and adjusting device according to the invention in a section,
  • FIG. 2 shows a top view of the fastening device and adjusting device according to FIG. 1.

In den Fig. 1 und 2 ist ein Teil des Druckerwagens 2 dargestellt, auf dem der Druckkopf 1, z. B. ein Nadeldruckkopf, mittels der Zapfen 3 geführt ist. Zur Befestigung und Einstellung des Druckkopfes ist ein Lagerelement 5 drehbar an dem Druckerwagen 2 befestigt. Das Lagerelement 5 ist hierbei als Bolzen ausgeführt, der in die Bohrung 11 des Druckerwagens 2 eingelassen ist. Das Lagerelement 5 steht mit einem Bedienelement 6 in starrer Verbindung. Das Bedienelement 6 ist als Hebel ausgestaltet und sitzt federnd auf einer Auflagefläche 13 des Druckkopfes 1 auf. Zur Erzielung dieser Federwirkung ist im Bereich der Bohrung 11 ein Federelement 4 vorgesehen. Das Federelement 4 kann z. B. als Druckfeder, Blattfeder oder Tellerfeder realisiert sein.1 and 2 a part of the printer carriage 2 is shown on which the print head 1, for. B. a needle print head by means of the pin 3 is guided. To fix and adjust the print head, a bearing element 5 is rotatably attached to the printer carriage 2. The bearing element 5 is designed as a bolt which is inserted into the bore 11 of the printer carriage 2. The bearing element 5 is rigidly connected to an operating element 6. The control element 6 is designed as a lever and resiliently rests on a support surface 13 of the print head 1. To achieve this spring action, a spring element 4 is provided in the area of the bore 11. The spring element 4 can, for. B. can be realized as a compression spring, leaf spring or plate spring.

In dem beschriebenen Ausführungsbeispiel wird als Federelement 4 eine Druckfeder verwendet, die das Lagerelement 5 im Bereich der Bohrung 11 des Druckerwagens 2 umgibt. Zur Befestigung des Druckkopfes 1 an dem Druckerwagen 2 wird nun das Lagerelement 5 einschließlich des Bedienelementes 6 ein Stück aus der Bohrung 11 herausgezogen, so daß die Druckfeder gespannt ist. Anschließend wird das Bedienelement 6 auf der Auflagefläche 13 des Druckkopfes 1 aufgesetzt, so daß der Druckkopf 1 fest gegen den Druckerwagen 2 gepreßt wird.In the exemplary embodiment described, a compression spring is used as the spring element 4, which surrounds the bearing element 5 in the region of the bore 11 of the printer carriage 2. To attach the print head 1 to the printer carriage 2, the bearing element 5 including the control element 6 is now pulled out a little from the bore 11 so that the compression spring is tensioned. Then the control element 6 is placed on the bearing surface 13 of the print head 1, so that the print head 1 is pressed firmly against the printer carriage 2.

Zur Einstellung des Abstandes zwischen dem Druckkopf 1 und der Druckgegenlage 9 ist eine Vorrichtung nötig, die die Drehbewegung des Lagerelementes 5 bzw. des Bedienelementes 6 in eine translatorische Bewegung umsetzt. Hierzu ist ein Exzenter 7 vorgesehen, der auf dem Lagerelement 5 angeordnet ist. Das Lagerelement 5 greift hierbei über den Exzenter 7 in den auf dem Druckerwagen 2 durch die Zapfen 3 verschiebbar geführten Druckkopf 1 ein. Für den Exzenter 7 ist hierfür eine ihn umschließende Paßform 12 am Druckkopf 1 angebracht.To set the distance between the A print head 1 and the platen 9 require a device which converts the rotary movement of the bearing element 5 or the control element 6 into a translatory movement. For this purpose, an eccentric 7 is provided, which is arranged on the bearing element 5. The bearing element 5 engages via the eccentric 7 in the print head 1, which is displaceably guided on the printer carriage 2 by the pins 3. For the eccentric 7, a fit 12 surrounding it is attached to the print head 1.

Für die vom herstellenden Werk vorzunehmende Grundeinstellung bzw. Werkseinstellung ist auf dem Lagerelement 5 noch ein Sechskant 10 angebracht, auf das der Exzenter 7 aufgesteckt ist. Durch Drehen des Exzenters 7 in eine bestimmte Stellung wird ein fest definierter Abstand a zwischen dem Druckkopf 1 und der Druckgegenlage 9 definiert. Danach wird das Bedienelement 6 in eine bestimmte Raststellung, z. B. in die Rastausnehmung K1 auf der Auflagefläche 13 des Druckkopfes 1 gedreht und diese Einstellung durch die Sechskantmutter 8 fixiert.For the basic setting or factory setting to be carried out by the manufacturing plant, a hexagon 10 is also mounted on the bearing element 5, onto which the eccentric 7 is attached. By turning the eccentric 7 into a certain position, a fixedly defined distance a is defined between the print head 1 and the platen 9. Then the control element 6 is in a certain locking position, for. B. rotated into the recess K1 on the support surface 13 of the print head 1 and this setting fixed by the hexagon nut 8.

Für die vom Benutzer vorzunehmende Kundeneinstellung sind auf der Auflagefläche 13 weitere Rastausnehmungen K2, K3 vorgesehen, in die das Bedienelement 6 einrastet. Durch Drehen des Bedienelements 6 und Einrasten in eine der Rastausnehmungen K1, K2, K3 bewegt der Exzenter 7 den Druckkopf 1 zur Druckgegenlage 9 hin bzw. weg. Jeder Rastausnehmung K1, K2, K3 ist hierbei ein bestimmter Abstand a zwischen dem Druckkopf 1 und der Druckgegenlage 9 zugeordnet. Das Einrasten des Bedienelementes 6 in die beiden Rastausnehmungen K1 und K2 wird je nach der Dicke des zu bedruckenden Materials, z. B. Papier gewählt. Für mögliche Zwischenstellungen sind zusätzliche Rastausnehmungen erforderlich.For the customer setting to be made by the user, 13 further latching recesses K2, K3 are provided on the support surface, into which the control element 6 engages. By rotating the control element 6 and latching into one of the latching recesses K1, K2, K3, the eccentric 7 moves the print head 1 towards or away from the printing platen 9. Each latching recess K1, K2, K3 is assigned a certain distance a between the print head 1 and the platen 9. The engagement of the control element 6 in the two locking recesses K1 and K2 is, depending on the thickness of the material to be printed, for. B. Paper selected. Additional recesses are required for possible intermediate positions.

Rastet das Bedienelement 6 in die Rastausnehmung K3 ein, so ist der Druckkopf 1 so weit von der bruckgegenlage 9 entfernt, daß ein Wechseln des Farbbandes ohne Beschmutzen der Hände möglich ist.If the control element 6 snaps into the snap-in recess K3, the print head 1 is so far away from the counterpart 9 that it is possible to change the ink ribbon without soiling the hands.

Bei der in den Figuren gestrichelt eingezeichneten Stellung des Bedienelementes 6 sind der Druckkopf 1 und der Druckerwagen 2 nicht mehr aneinander befestigt, so daß sich nur diese Stellung für einen Wechsel des Druckkopfes 1 ergibt.In the position of the control element 6 shown in dashed lines in the figures, the print head 1 and the print carriage 2 are no longer fastened to one another, so that only this position results for a change of the print head 1.

Claims (6)

1. A printing device comprising a printing head (1), which is arranged on a printer carriage (2), a fastening device for releasably fastening the printing head on the printer carriage (2), and an adjusting device for adjusting the distance between the printing head (1) and a printing platen, characterised in that an integrated printing head attachment is provided which jointly carries out the functions of the attachment device and the adjusting device, said printing head attachment having a bearing element (5) which is rotatably secured on the printer carriage (2) and is rigidly connected to an operating element (6) which is resiliently positioned on a supporting surface (13) of the printing head (1), and which bearing element, by means of an eccentric, engages in the printing head (1) which is displaceably guided on the printer carriage; and that, in order to release the printing head (1) from the printer carriage (2), the operating element (6), together with the bearing element (5), is rotatable into a position, which makes the release possible and in which the operating element (6) no longer contacts the supporting surface (13).
2. A printing device as claimed in Claim 1, characterised in that the eccentric (7) is arranged on the bearing element (5) and engages into a matching form (12) which is arranged on the printing head (1).
3. A printing device as claimed in Claim 1 or 2, characterised in that the supporting surface (13) of the printing head (1) has locking recesses (K1, K2, K3...) for securing the operating element (6).
4. A printing device as claimed in one of the preceding Claims, characterised in that the eccentric (7) is put on a hexagon (10) which belongs to the bearing element (5); and that the operating element (6) resting on the eccentric (7) is secured by means of a hexagonal nut (8).
5. A printing device as claimed in one of the preceding Claims, characterised in that the bearing element (5) is in the form of a bolt, which is inserted into a bore (11), and is provided with a spring element (4).
6. A printing device as claimed in one of the preceding Claims, characterised in that the operating element (6) consists of a spring lever.
EP82111938A 1981-12-29 1982-12-23 Printing device with integrated printhead attachment and adjustment Expired EP0083080B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3151776A DE3151776C2 (en) 1981-12-29 1981-12-29 Device for storing and adjusting a print head
DE3151776 1981-12-29

Publications (2)

Publication Number Publication Date
EP0083080A1 EP0083080A1 (en) 1983-07-06
EP0083080B1 true EP0083080B1 (en) 1985-03-27

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EP82111938A Expired EP0083080B1 (en) 1981-12-29 1982-12-23 Printing device with integrated printhead attachment and adjustment

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US (1) US4426165A (en)
EP (1) EP0083080B1 (en)
JP (1) JPS58116180A (en)
DE (1) DE3151776C2 (en)

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EP0118425A1 (en) * 1982-09-08 1984-09-19 Ncr Corporation Fastening mechanism for removably fastening together two workpieces
US4514100A (en) * 1983-08-19 1985-04-30 At&T Teletype Corporation Mounting apparatus for dot matrix print head
JPS63265649A (en) * 1987-04-23 1988-11-02 Brother Ind Ltd Printer
US5064303A (en) * 1989-01-18 1991-11-12 Bell & Howell Phillipsburg Company Printhead mount assembly
US5083143A (en) * 1990-12-26 1992-01-21 Tektronix, Inc. Rotational adjustment of an ink jet head
EP0602709B1 (en) * 1992-12-14 1998-04-29 Agfa-Gevaert N.V. Thermal image-recording apparatus with locking means for holding a print head
JP3359205B2 (en) * 1994-11-25 2002-12-24 キヤノン株式会社 Recording device
US6322204B1 (en) * 1998-12-14 2001-11-27 Scitex Digital Printing, Inc. Retaining and installing a printhead in a printhead docking station
US6736557B2 (en) 2002-09-05 2004-05-18 Lexmark International, Inc. Printhead gap adjustment mechanism for an imaging apparatus

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JPS5119618A (en) * 1974-08-09 1976-02-17 Citizen Watch Co Ltd INPAKUTODOTSU TOPURINTANO INJIKIKO
JPS5294229A (en) * 1976-02-03 1977-08-08 Ricoh Kk Device for supporting type head
FR2403889A1 (en) * 1977-09-21 1979-04-20 Logabax MODULAR MOBILE PRINT HEAD MOSAIC PRINTER, WITH A PRINTING BLOCK MECHANICALLY INDEPENDENT FROM THE PRINT MEDIA INPUT AND DRIVE BLOCKS
DE2752061C3 (en) * 1977-11-22 1981-02-12 Philips Patentverwaltung Gmbh, 2000 Hamburg Device for adjusting the distance of a print head perpendicular to the platen
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US4229114A (en) * 1979-02-12 1980-10-21 Dataproducts Corporation Mechanism for operator-replaceable printhead

Also Published As

Publication number Publication date
DE3151776C2 (en) 1986-03-20
JPS58116180A (en) 1983-07-11
EP0083080A1 (en) 1983-07-06
DE3151776A1 (en) 1983-07-14
US4426165A (en) 1984-01-17

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