EP0960032B1 - Document conveyor and stop device - Google Patents

Document conveyor and stop device Download PDF

Info

Publication number
EP0960032B1
EP0960032B1 EP97915325A EP97915325A EP0960032B1 EP 0960032 B1 EP0960032 B1 EP 0960032B1 EP 97915325 A EP97915325 A EP 97915325A EP 97915325 A EP97915325 A EP 97915325A EP 0960032 B1 EP0960032 B1 EP 0960032B1
Authority
EP
European Patent Office
Prior art keywords
print head
lever
bearing
paper
transport path
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 - Lifetime
Application number
EP97915325A
Other languages
German (de)
French (fr)
Other versions
EP0960032A2 (en
Inventor
Günter Baitz
Wolfgang Malke
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf GmbH and Co KG
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 Wincor Nixdorf GmbH and Co KG filed Critical Wincor Nixdorf GmbH and Co KG
Publication of EP0960032A2 publication Critical patent/EP0960032A2/en
Application granted granted Critical
Publication of EP0960032B1 publication Critical patent/EP0960032B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
    • B41J25/3088—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms with print gap adjustment means on the printer frame, e.g. for rotation of an eccentric carriage guide shaft
    • 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
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms

Definitions

  • the invention relates to paper transport in printing devices with a movable print head.
  • the guide roller is on the Printhead face rotatably mounted and lies on a flexible, parallel to the Pressure abutment extending band, the flexible band during the Printing process is firmly on the receipt.
  • a reference position must be determined for the document, for what a paper stop that can be swung into the printing web is used. There is also a gap between when inserted to open the paper transport rollers. So far by an associated drive, for example achieved by solenoids.
  • the object of the invention is the functions mentioned without providing your own drive.
  • the invention solves this problem by the printhead in moves to a position outside the print area and thereby actuating a lever which swivels in the paper stop into the paper transport path. Further the print head runs onto a stationary counterpart, so that he pushed away from the platen and on Gap is opened into the material to be printed can be retracted. At the same time through angle levers and push rods the paper feed roller pairs open. The arrangement additionally effects a printhead gap control.
  • Fig. 1 shows a cross section through an arrangement according to the invention.
  • one is on a print head carrier mounted printhead.
  • printhead becomes synonymous used for print head carriers.
  • the printhead 1 is perpendicular to the plane of representation on guide rods 8a, 8b slidably arranged and with a not shown Drive for a movement in this direction Mistake.
  • a Pressure abutment 6 Opposite the print head 1 is a Pressure abutment 6, so that a paper transport path 7 is present is in which the document 40 to be printed by Guide and support plates, not shown, is guided.
  • the Guide rods 8a, 8b are connected to the chassis in such a way that the print head 1 by a few millimeters in the Display plane moved away from the paper transport path 7 can be and so the distance of the print head 1 from the pressure abutment 6 can be changed, as further will be described below.
  • the document 40 to be printed is in an initial position shown. It is supported by a leading role 3b, which is the document presses against a counter roller 4b in the direction of the arrow A transported in front of the printhead. Continue in the direction of transport there are a second guide roller 3a and an associated counter roller 4a, which take over the transport, if the document was captured by them.
  • the counter roles 4a, 4b are fixed to the chassis via pivot bearings connected and are synchronized by means not shown driven.
  • the guide rollers 3a and 3b are on rotary bearings 23a, 23b attached to angle levers 2a and 2b. You can also used in a known manner pairs of angle levers that are mutually perpendicular to the image plane standing rods are mechanically rigidly coupled.
  • a lever to the right and left of the paper feed path used by a rod are connected, on which guide rollers 3a are rotatably mounted are.
  • the angle levers 2a, 2b are in turn over Pivot bearings 21a, 21b held relative to the chassis.
  • rotary bearings 24a, 24b couple a push rod 9 the angle lever, so that the guide rollers 3a, 3b in the same Dimensions pressed against the counter rollers 4a, 4b or by the Counter rollers can be lifted off. All axes of the bearings 21a, 21b, 22a, 22b, 23a, 23b are parallel to each other.
  • the paper stop 5 is preferably has a stop surface 5 'perpendicular to the image plane.
  • the paper stop 5 is designed as a lever, via a rotary bearing 22b approximately in the middle between the stationary pivot bearing 21b and the bearing point 23b for the Guide roller 3b is attached.
  • a suitable bearing or a double lever it is avoided that the paper stop from the shown level evades.
  • Pivot point 22b On the paper stop 5 is at some distance from that Pivot point 22b is a bolt 13 perpendicular to the plane of the illustration attached protruding. This bolt can go through a driver 14 of a pivot lever 10 in the same Direction A as the paper transport are operated, so that the paper stop 5 in the display plane rotates and moves to the position shown in dashed lines 5 " can be.
  • the pivot lever 10 is movable by means of a pivot bearing 11 stored, its axis perpendicular to the paper transport path 7 stands. 2, the pivot lever 10 is off View of arrow B shown.
  • the print head 1 will by the drive on the guide rods, not shown Travel 8a, 8b in direction C.
  • Travel 8a, 8b is the one shown Position and at the same time the starting position of the printhead on the left margin.
  • the Swivel lever 10 actuates bolt 13 with driver 14, so that the paper stop 5 'in the working position 5 "is pivoted.
  • the Swivel lever 10 has a short lever arm on the roller 12 and a long one on the driver 14, a short one is sufficient Away from a few millimeters of printhead shift to bring the paper stop 5 into the working position 5 ".
  • the long lever makes it possible Attach paper stop 5 in the printing area, although the Printhead 1 a triggering movement outside the print area performs.
  • a second roller 30 is fixed in relation to the chassis and therefore presses when the movement continues of the print head 1 via a run-up slope 31 den Print head away from the paper transport path 7. It thus causes the printhead to lower.
  • the printhead 1 is connected to the angle lever 2a in a bearing 22a, so that the latter rotates around the fixed bearing 21a performs and the guide roller 3a from the paper transport path 7 is lifted off.
  • This connection can be made permanently, as with a round one Guide rod 8a (or a suitable bearing of the guide rod 8a in the print head), the print head 1 rotates can perform around the axis of the guide rod.
  • the second guide rod 8b, which is a tilting movement of the Prevented printhead is by a similar pair of levers connected to the chassis or, as indicated in FIG. 1, the print head can be moved through an elongated hole.
  • the print head executes 1 a movement in the arrow C opposite Direction, i.e. to the starting position and to the printing positions there. This will initially lower the printhead canceled so that the print head 1 again against the pressure abutment 6 and the guide rollers 3a, 3b against move the counter rollers 4a, 4b.
  • One not shown Spring forces this movement and provides pressure the guide rollers 3a, 3b against the counter rollers 4a, 4b.
  • the further backward movement of the print head 1 also gives the Swivel lever 9 free, which is then by the paper stop 5 acting gravity or another not shown spring moves back and causes the Paper stop 5 pivoted out of the paper transport path 7 becomes.
  • the preferred embodiment shown can also can be used in a simplified manner by pressing the angle lever 2b in the area of the paper stop 5 and the push rod 9 is dispensed with and the counter roller 3b permanently by a Suspension is pressed against the drive roller 4b. It remains the printhead lowering by the roller 30 and the distance control by the angle lever 2a in the area of the print head 1 in interaction with the drive rollers there 4a, counter rollers 3b and the angle lever 2a.
  • the suspension for the pair of rollers 3b, 4b less powerful than that for the one coupled to the printhead Pair of rollers 3a, 4a.
  • Becomes a sufficiently stiff Document inserted so he can push the Rollers are pushed to the stop and after lowering the ruler to the other one, with the Printhead coupled roller pair are transported, which then determines the transport.
  • rollers 12 and 30 can also be designed accordingly and lubricated sliding surfaces are replaced, if the printhead drive is designed accordingly.

Description

Technisches GebietTechnical field

Die Erfindung betrifft den Papiertransport in Druckeinrichtungen mit einem beweglichen Druckkopf.The invention relates to paper transport in printing devices with a movable print head.

Stand der TechnikState of the art

Dokument EP-A-0 281 499 offenbart eine Anordnung zur Kopplung eines Druckkopfs mit einer Leitrolle in einem Druckgerät, in dem ein in einer Papiertransportbahn befindlicher, in Transportrichtung transportierbarer Beleg mit dem Druckkopf bedruckbar ist, mit den Merkmalen:

  • der Druckkopf ist ein geringes Maß senkrecht zur Papiertransportbahn verschieblich gelagert sowie senkrecht zur Transportrichtung und parallel zur Papiertransportbahn positionierbar mit einem Positionierbereich, der an einer Seite den Druckbereich überschreitet,
  • außerhalb des Druckbereichs und von diesem wegführend ist eine Gleitfläche angeordnet, auf die eine Steuerfläche des Druckkopfs bei einer von dem Druckbereich wegführenden Positionierung aufläuft und somit den Druckkopf von der Papiertransportbahn wegbewegt.
Document EP-A-0 281 499 discloses an arrangement for coupling a print head to a guide roller in a printing device, in which a document located in a paper transport path and transportable in the transport direction can be printed with the print head, with the features:
  • the print head is slidably mounted perpendicularly to the paper transport path and can be positioned perpendicular to the transport direction and parallel to the paper transport path with a positioning area that exceeds the print area on one side,
  • A sliding surface is arranged outside the printing area and leading away therefrom, onto which a control surface of the print head runs when it is positioned away from the printing area and thus moves the print head away from the paper transport path.

Bei dem Druckgerät gemäß Dokument EP-A-0 281 499 ist die Leitrolle an der Druckkopfstirnseite drehbar gelagert und liegt auf einem biegsamen, parallel zum Druckwiderlager verlaufenden Band auf, wobei das biegsame Band während des Druckvorgangs auf dem Beleg fest aufliegt.In the printing device according to document EP-A-0 281 499, the guide roller is on the Printhead face rotatably mounted and lies on a flexible, parallel to the Pressure abutment extending band, the flexible band during the Printing process is firmly on the receipt.

Insbesondere in Druckern für einzelne Blätter oder Belege muß für den Beleg eine Referenzposition bestimmte werden, wofür ein in die Druckbahn einschwenkbarer Papieranschlag verwendet wird. Ferner ist beim Einlegen ein Spalt zwischen den Papiertransportrollen zu öffnen. Dies wird bislang durch einen jeweils zugeordneten Antrieb, beispielsweise durch Hubmagnete, erreicht.Especially in printers for single sheets or receipts a reference position must be determined for the document, for what a paper stop that can be swung into the printing web is used. There is also a gap between when inserted to open the paper transport rollers. So far by an associated drive, for example achieved by solenoids.

Aufgabe der Erfindung ist es, die genannten Funktionen ohne eigenen Antrieb bereitzustellen.The object of the invention is the functions mentioned without providing your own drive.

Darstellung der ErfindungPresentation of the invention

Die Erfindung löst diese Aufgabe, indem der Druckkopf in eine Position außerhalb des Druckbereichs verfährt und dabei einen Hebel betätigt, der ein Einschwenken des Papieranschlags in die Papiertransportbahn bewirkt. Ferner läuft der Druckkopf auf ein ortsfestes Gegenstück auf, sodaß er von dem Druckgegenlager weggedrückt und ein Spalt geöffnet wird, in den das zu bedruckende Material eingefahren werden kann. Gleichzeitig werden durch Winkelhebel und Schubstangen die Papiertransportrollenpaare geöffnet. Die Anordnung bewirkt zusätzlich eine Druckkopfabstandsregelung.The invention solves this problem by the printhead in moves to a position outside the print area and thereby actuating a lever which swivels in the paper stop into the paper transport path. Further the print head runs onto a stationary counterpart, so that he pushed away from the platen and on Gap is opened into the material to be printed can be retracted. At the same time through angle levers and push rods the paper feed roller pairs open. The arrangement additionally effects a printhead gap control.

Es handelt sich also um eine Anordnung, bei der durch Verfahren des Druckkopfs eines Druckwerks auf eine Position außerhalb des Druckbereichs sowohl ein Papieranschlag in die Papiertransportbahn geschwenkt wird als auch durch Absenkung des Druckkopfs ein Spalt sowohl zwischen Druckkopf und Druckwiderlager wie auch zwischen den Papierandruckrollen geöffnet wird, wobei die Kopplung des Druckkopfs bezüglich der Absenkbewegung mit den Papierandruckrollen gleichzeitig eine Druckkopfabstandsregelung ermöglichet.So it is an arrangement in which by Moving the print head of a printing unit to one position both a paper stop outside the print area is pivoted into the paper transport path as also by lowering the printhead both a gap between Printhead and platen as well as between the Paper pressure rollers is opened, the coupling of the Printhead with respect to the lowering movement with the paper pressure rollers at the same time a printhead distance control enabled.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Es zeigt:

Fig. 1
einen Querschnitt durch eine Anordung von Druckkopf(-träger) mit Papiertransport und Papieranschlag,
Fig. 2
einen Auszug betreffend den Papieranschlag aus Sicht des Pfeiles B in Fig. 1.
It shows:
Fig. 1
a cross section through an arrangement of print head (carrier) with paper transport and paper stop,
Fig. 2
an extract relating to the paper stop from the perspective of arrow B in Fig. 1st

Detaillierte Beschreibung einer Ausführung der ErfindungDetailed description of an embodiment of the invention

Fig. 1 zeigt einen Querschnitt durch eine Anordnung gemäß der Erfindung. Hierbei wird ein auf einen Druckkopfträger montierter Druckkopf verwendet. Zur Vereinfachung der Beschreibung wird im folgenden der Begriff Druckkopf synonym für Druckkopfträger verwendet. Der Druckkopf 1 ist senkrecht zur Darstellungsebene auf Führungsstangen 8a, 8b verschiebbar angeordnet und mit einem nicht dargestellten Antrieb für eine Bewegung in dieser Richtung versehen. Gegenüber dem Druckkopf 1 befindet sich ein Druckwiderlager 6, so daß eine Papiertransportbahn 7 vorhanden ist, in der der zu bedruckende Beleg 40 durch nicht gezeigte Leit- und Stützbleche geführt wird. Die Führungsstangen 8a, 8b sind derart mit dem Chassis verbunden, daß der Druckkopf 1 um einige Millimeter in der Darstellungsebene weg von der Papiertransportbahn 7 bewegt werden kann und so der Abstand des Druckkopfes 1 von dem Druckwiderlager 6 verändert werden kann, wie weiter unten beschrieben werden wird.Fig. 1 shows a cross section through an arrangement according to the invention. Here, one is on a print head carrier mounted printhead. To simplify the description In the following, the term printhead becomes synonymous used for print head carriers. The printhead 1 is perpendicular to the plane of representation on guide rods 8a, 8b slidably arranged and with a not shown Drive for a movement in this direction Mistake. Opposite the print head 1 is a Pressure abutment 6, so that a paper transport path 7 is present is in which the document 40 to be printed by Guide and support plates, not shown, is guided. The Guide rods 8a, 8b are connected to the chassis in such a way that the print head 1 by a few millimeters in the Display plane moved away from the paper transport path 7 can be and so the distance of the print head 1 from the pressure abutment 6 can be changed, as further will be described below.

Der zu bedruckende Beleg 40 ist in einer Anfangsstellung gezeigt. Er wird durch eine Leitrolle 3b, die den Beleg gegen eine Gegenrolle 4b drückt, in Richtung des Pfeiles A vor den Druckkopf transportiert. Weiter in Tranportrichtung befinden sich eine zweite Leitrolle 3a und eine dazu gehörige Gegenrolle 4a, die den Transport übernehmen, wenn der Beleg von ihnen erfaßt wurde. Die Gegenrollen 4a, 4b sind über Drehlager mit dem Chassis fest verbunden und werden durch nicht gezeigte Mittel synchron angetrieben. Die Leitrollen 3a und 3b sind über Drehlager 23a, 23b an Winkelhebeln 2a und 2b befestigt. Dabei können auch in bekannter Art Paare von Winkelhebeln verwendet werden, die miteinander durch senkrecht zur Bildebene stehende Stäbe mechanisch starr gekoppelt sind. Vorzugsweise werden hierbei je ein Hebel rechts und links von der Papiertransportbahn verwendet, die durch einen Stab verbunden sind, auf welchem Leitrollen 3a drehbar gelagert sind. Die Winkelhebel 2a, 2b werden ihrerseits über Drehlager 21a, 21b gegenüber dem Chassis gehalten. Durch weitere Drehlager 24a, 24b verkoppelt eine Schubstange 9 die Winkelhebel, so daß die Leitrollen 3a, 3b in gleichem Maße gegen die Gegegenrollen 4a, 4b gedrückt oder von den Gegenrollen abgehoben werden können. Alle Achsen der Lager 21a, 21b, 22a, 22b, 23a, 23b sind parallel zueinander.The document 40 to be printed is in an initial position shown. It is supported by a leading role 3b, which is the document presses against a counter roller 4b in the direction of the arrow A transported in front of the printhead. Continue in the direction of transport there are a second guide roller 3a and an associated counter roller 4a, which take over the transport, if the document was captured by them. The counter roles 4a, 4b are fixed to the chassis via pivot bearings connected and are synchronized by means not shown driven. The guide rollers 3a and 3b are on rotary bearings 23a, 23b attached to angle levers 2a and 2b. You can also used in a known manner pairs of angle levers that are mutually perpendicular to the image plane standing rods are mechanically rigidly coupled. Preferably a lever to the right and left of the paper feed path used by a rod are connected, on which guide rollers 3a are rotatably mounted are. The angle levers 2a, 2b are in turn over Pivot bearings 21a, 21b held relative to the chassis. By further rotary bearings 24a, 24b couple a push rod 9 the angle lever, so that the guide rollers 3a, 3b in the same Dimensions pressed against the counter rollers 4a, 4b or by the Counter rollers can be lifted off. All axes of the bearings 21a, 21b, 22a, 22b, 23a, 23b are parallel to each other.

Ferner ist ein Papieranschlag 5 vorhanden, der vorzugweise eine Anschlagfläche 5' senkrecht zur Bildebene aufweist. Der Papieranschlag 5 ist als Hebel ausgebildet, der über ein Drehlager 22b etwa in der Mitte zwischen dem ortsfesten Drehlager 21b und dem Lagerpunkt 23b für die Leitrolle 3b befestigt ist. Durch nicht gezeigte Maßnahmen, beispielsweise ein geeignetes Lager oder einen Doppelhebel, wird vermieden, daß der Papieranschlag aus der gezeigten Ebene ausweicht.There is also a paper stop 5, which is preferably has a stop surface 5 'perpendicular to the image plane. The paper stop 5 is designed as a lever, via a rotary bearing 22b approximately in the middle between the stationary pivot bearing 21b and the bearing point 23b for the Guide roller 3b is attached. By measures not shown, for example a suitable bearing or a double lever, it is avoided that the paper stop from the shown level evades.

An dem Papieranschlag 5 ist in einigem Abstand von dem Drehpunkt 22b ein Bolzen 13 senkrecht zur Darstellungsebene abstehend angebracht. Dieser Bolzen kann durch einen Mitnehmer 14 eines Schwenkhebels 10 in derselben Richtung A wie der Papiertransport betätigt werden, so daß sich der Papieranschlag 5 in der Darstellungsebene dreht und in die gestrichelt dargestellte Stellung 5" bewegt werden kann.On the paper stop 5 is at some distance from that Pivot point 22b is a bolt 13 perpendicular to the plane of the illustration attached protruding. This bolt can go through a driver 14 of a pivot lever 10 in the same Direction A as the paper transport are operated, so that the paper stop 5 in the display plane rotates and moves to the position shown in dashed lines 5 " can be.

Der Schwenkhebel 10 ist mittels eines Drehlagers 11 beweglich gelagert, dessen Achse senkrecht zur Papiertransportbahn 7 steht. In Fig. 2 ist der Schwenkhebel 10 aus Sicht des Pfeiles B dargestellt. Der Druckkopf 1 wird durch den nicht gezeigten Antrieb auf den Führungsstangen 8a, 8b in Richtung C verfahren. Dabei liegt die gezeigte Stellung und gleichzeitig die Ausgangsposition des Druckkopfes am linken Druckrand. Durch ein weiters Verfahren in Richtung des Pfeiles C und vom Druckbereich weg betätigt die Kante 15 eine Rolle 12, wodurch der Schwenkhebel 10 mit dem Mitnehmer 14 den Bolzen 13 betätigt, so daß der Papieranschlag 5' in die Arbeitsposition 5" geschwenkt wird. Da, wie in Fig. 2 dargestellt, der Schwenkhebel 10 einen kurzen Hebelarm an der Rolle 12 und eine langen an dem Mitnehmer 14 aufweist, genügt ein kurzer Weg von wenigen Millimetern Druckkopfverschiebung, um den Papieranschlag 5 in Arbeitsposition 5" zu bringen. Gleichzeitig wird es durch den langen Hebel möglich, den Papieranschlag 5 im Druckbereich anzubringen, obwohl der Druckkopf 1 eine auslösende Bewegung außerhalb des Druckbereichs durchführt.The pivot lever 10 is movable by means of a pivot bearing 11 stored, its axis perpendicular to the paper transport path 7 stands. 2, the pivot lever 10 is off View of arrow B shown. The print head 1 will by the drive on the guide rods, not shown Travel 8a, 8b in direction C. Here is the one shown Position and at the same time the starting position of the printhead on the left margin. By another process in the direction of arrow C and from the pressure area away the edge 15 actuates a roller 12, whereby the Swivel lever 10 actuates bolt 13 with driver 14, so that the paper stop 5 'in the working position 5 "is pivoted. As shown in FIG. 2, the Swivel lever 10 has a short lever arm on the roller 12 and a long one on the driver 14, a short one is sufficient Away from a few millimeters of printhead shift to bring the paper stop 5 into the working position 5 ". At the same time, the long lever makes it possible Attach paper stop 5 in the printing area, although the Printhead 1 a triggering movement outside the print area performs.

Eine weitere Bewegung des Druckkopfes 1 in der Richtung C führt bezüglich des Schwenkhebels 10 und damit des Papieranschlags 5, 5' zu keiner Veränderung der durch 5" dargestellten Stellung, da die Rolle 12 nunmehr auf der an die Kante 15 anschließenden Fläche aufliegt. Eine zweite Rolle 30 ist ortsfest in Bezug zum Chassis angebracht und drückt daher bei einer Fortsetzung der Bewegung des Druckkopfs 1 über eine Auflaufschräge 31 den Druckkopf von der Papiertransportbahn 7 weg nach unten. Sie bewirkt damit eine Druckkopfabsenkung. Der Druckkopf 1 ist in einem Lager 22a mit dem Winkelhebel 2a verbunden, so daß letzterer eine Drehung um das feste Lager 21a durchführt und die Leitrolle 3a von der Papiertransportbahn 7 abgehoben wird. Dies wird beispielsweise dadurch ereicht, daß eine Führungsstange 8a sowie zwei Winkelhebel 2a rechts und links von der Papiertransportbahn 7 verwendet werden, in die an der Stelle des Lagers 22a die Führungsstange 8a mit dem Winkelhebel 2a verbunden ist. Diese Verbindung kann fest erfolgen, da bei einer runden Führungsstange 8a (oder einem passenden Lager der Führungsstange 8a im Druckkopf) der Druckkopf 1 eine Drehbewegung um die Achse der Führungsstange durchführen kann. Die zweite Führungstange 8b, die eine Kippbewegung des Druckkopfs verhindert, ist durch ein ähnliches Hebelpaar mit dem Chassis verbunden oder es ist, wie in Fig. 1 angedeutet, durch ein Langloch der Druckkopf verschieblich. Durch die Schubstange 9 wird der zweite Winkelhebel 2b in eine gleiche Bewegung gezwungen, so daß auch die zweite Leitrolle 3b abgehoben wird. Auf diese Art ist die Zuführung für einen zu bedruckenden Beleg 40 geöffnet, welcher auf einem nicht gezeigten Auflagetisch geführt und von dem Benutzer bis an den Papieranschlag 5" geschoben werden kann. Another movement of the print head 1 in the direction C leads with respect to the pivot lever 10 and thus the paper stop 5, 5 'to no change by 5 " position shown, since the roller 12 is now on the rests on the edge 15 adjoining surface. A second roller 30 is fixed in relation to the chassis and therefore presses when the movement continues of the print head 1 via a run-up slope 31 den Print head away from the paper transport path 7. It thus causes the printhead to lower. The printhead 1 is connected to the angle lever 2a in a bearing 22a, so that the latter rotates around the fixed bearing 21a performs and the guide roller 3a from the paper transport path 7 is lifted off. This is done, for example reached that a guide rod 8a and two angle levers 2a to the right and left of the paper transport path 7 be used in the at the location of the bearing 22a Guide rod 8a is connected to the angle lever 2a. This connection can be made permanently, as with a round one Guide rod 8a (or a suitable bearing of the guide rod 8a in the print head), the print head 1 rotates can perform around the axis of the guide rod. The second guide rod 8b, which is a tilting movement of the Prevented printhead is by a similar pair of levers connected to the chassis or, as indicated in FIG. 1, the print head can be moved through an elongated hole. By the push rod 9, the second angle lever 2b in forced the same movement, so that the second Guide roller 3b is lifted off. This is the way of feeding opened for a document 40 to be printed, which guided on a support table, not shown, and by the user can be pushed up to the paper stop 5 " can.

Nachdem beispielsweise durch eine Lichtschranke erkannt wurde, daß der Beleg eingelegt ist, vollführt der Druckkopf 1 eine Bewegung in dem Pfeil C entgegengesetzter Richtung, also zu der Ausgansposition und zum den Druckpositionen hin. Hierdurch wird zunächst die Druckkopfabsenkung aufgehoben, so daß sich der Druckkopf 1 wieder gegen das Druckwiderlager 6 und die Leitrollen 3a, 3b gegen die Gegenrollen 4a, 4b bewegen. Eine nicht gezeigte Feder erzwingt diese Bewegung und sorgt für einen Andruck der Leitrollen 3a, 3b gegen die Gegenrollen 4a, 4b. Die weitere Rückbewegung des Druckkopfes 1 gibt auch den Schwenkhebel 9 frei, der sich dann durch die auf den Papieranschlag 5 wirkende Schwerkraft oder eine weitere nicht gezeigte Feder zurückbewegt und dazu führt, daß der Papieranschlag 5 aus der Papiertransportbahn 7 geschwenkt wird. Durch Antrieb der Gegenrollen 4a, 4b oder auch der Leitrollen 3a, 3b kann nunmehr der zu bedruckende Beleg zwischen Druckkopf 1 und Druckwiderlager 6 bewegt und dort bedruckt werden.After being recognized, for example, by a light barrier If the document has been inserted, the print head executes 1 a movement in the arrow C opposite Direction, i.e. to the starting position and to the printing positions there. This will initially lower the printhead canceled so that the print head 1 again against the pressure abutment 6 and the guide rollers 3a, 3b against move the counter rollers 4a, 4b. One not shown Spring forces this movement and provides pressure the guide rollers 3a, 3b against the counter rollers 4a, 4b. The further backward movement of the print head 1 also gives the Swivel lever 9 free, which is then by the paper stop 5 acting gravity or another not shown spring moves back and causes the Paper stop 5 pivoted out of the paper transport path 7 becomes. By driving the counter rollers 4a, 4b or The document to be printed can now guide rollers 3a, 3b moved between print head 1 and platen 6 and printed there.

Durch die Winkelhebel 2a, 2b wird gleichzeitig eine Druckabstandsregelung bewirkt. Indem der Beleg 40 durch seine Dicke die Leitrolle 3a oder 3b von der Gegenrolle 4a bzw. 4b wegdrückt, wird diese Bewegung über das Lager 22a in geringerem Maße auf den Druckkopf 1 übertragen, so daß bei einem dickeren Beleg 40 ein größerer Abstand zwischen Druckkopf 1 und Druckwiderlager 6 entsteht. Dabei hat sich eine Übersetzung von 2:1 bewährt, indem die den Druckkopf 1 mit dem Winkelhebel 2a verbindenden Lagerachse 22a etwa in der Mitte zwischen dem festen Lager 21a und dem Lager 23a für die Leitrollen 3a, 3b liegt.By the angle lever 2a, 2b is a Pressure distance control causes. By taking the document 40 through its thickness the guide roller 3a or 3b from the counter roller 4a or 4b pushes this movement over the bearing 22a transferred to the print head 1 to a lesser extent, so that with a thicker document 40, a greater distance between Printhead 1 and pressure abutment 6 arises. there has proven a ratio of 2: 1 by the Printhead 1 with the bearing lever connecting the angle lever 2a 22a approximately in the middle between the fixed bearing 21a and the bearing 23a for the guide rollers 3a, 3b.

Da der Papieranschlag 5 etwa in der Mitte des horizontalen Schenkels des Winkelhebels 2a gelagert ist, können die gleichen Formteile für die Winkelhebel 2a und 2b verwendet werden, welches eine Vereinfachung in der Produktion darstellt.Since the paper stop 5 is approximately in the middle of the horizontal Leg of the angle lever 2a is mounted, can the same molded parts for the angle lever 2a and 2b used which is a simplification in production represents.

Die dargestellte bevorzugte Ausführungsform kann auch vereinfacht benutzt werden, indem auf den Winkelhebel 2b im Bereich des Papieranschlags 5 sowie die Schubstange 9 verzichtet wird und die Gegenrolle 3b permanent durch eine Federung gegen die Antriebsrolle 4b gedrückt wird. Es verbleibt die Druckkopfabsenkung durch die Rolle 30 und die Abstandsregelung durch den Winkelhebel 2a im Bereich des Druckkopfs 1 in Zusammenspiel mit den dortigen Antriebsrollen 4a, Gegenrollen 3b und dem Winkelhebel 2a. Bei dieser Lösung ist die Federung für das Rollenpaar 3b, 4b weniger kräftig als die für das mit dem Druckkopf gekoppelte Rollenpaar 3a, 4a. Wird ein ausreichend steifer Beleg eingeführt, so kann er unter Auseinanderdrücken der Rollen bis zum Anschlag geschoben werden und nach Absenkung des Anschlaglineals bis zu dem anderen, mit dem Druckkopf gekoppelten Rollenpaar transportiert werden, welches dann den Transport bestimmt.The preferred embodiment shown can also can be used in a simplified manner by pressing the angle lever 2b in the area of the paper stop 5 and the push rod 9 is dispensed with and the counter roller 3b permanently by a Suspension is pressed against the drive roller 4b. It remains the printhead lowering by the roller 30 and the distance control by the angle lever 2a in the area of the print head 1 in interaction with the drive rollers there 4a, counter rollers 3b and the angle lever 2a. In this solution, the suspension for the pair of rollers 3b, 4b less powerful than that for the one coupled to the printhead Pair of rollers 3a, 4a. Becomes a sufficiently stiff Document inserted, so he can push the Rollers are pushed to the stop and after lowering the ruler to the other one, with the Printhead coupled roller pair are transported, which then determines the transport.

Die Rollen 12 und 30 können auch durch entsprechend gestaltetet und geschmierte Gleitflächen ersetzt werden, wenn der Druckkopfantrieb entsprechend ausgelegt ist.The rollers 12 and 30 can also be designed accordingly and lubricated sliding surfaces are replaced, if the printhead drive is designed accordingly.

Claims (9)

  1. Arrangement for coupling a print head (1) to one or more guide rollers (3a) in a printer or recorder, in which a document (40) that is located on a paper transport path (7) and can be transported in transport direction (A) can be printed by the print head (1), having the features:
    the print head (1) is mounted such that it can be displaced by a small amount perpendicular to the paper transport path (7) and can be positioned perpendicular to the transport direction (A) and parallel to the paper transport path (7), with a positioning range which extends beyond the printing area, at least on one side;
    on a lever (2a) which can be rotated by means of a first fixed-position bearing (21a) about an axis parallel to the plane of the paper transport path (7) and perpendicular to the transport direction (A), the guide roller (3a) is mounted by means of a second bearing (23a) with an axis of rotation parallel to the first bearing (21a) ;
    between the first bearing (21a) and the second bearing (23a), the lever bears a third bearing (22a) with an axis of rotation likewise parallel to the other bearings, which is connected to the print head (1) by a force fit in such a way that a movement of the guide roller (3a) perpendicular to the plane of the paper transport path (7) is positively coupled to a proportionally smaller movement of the print head (1) in the same direction;
    outside the printing area and leading away from it, there is arranged a sliding surface or roller (30), onto which a control surface of the print head (1) runs during a positioning action leading away from the printing area, and therefore moves the print head (1) away from the paper transport path (7).
  2. Arrangement according to Claim 1, two similar levers (2a) being located on both sides of the paper transport path (7) and being connected by a connecting rod (9) at the location of the second bearing (23a), and one or more guide rollers (3a) being rotatably mounted on the connecting rod.
  3. Arrangement according to Claim 1 or 2, two similar levers (2a) being located on both sides of the paper transport path and, at the locations of the third bearings (22a), a guide rod for the print head being connected to the levers (2a).
  4. Arrangement according to Claim 3, the print head being mounted on the guide rod such that it can rotate about its axis and, at the locations of the third bearing axis (22a), the guide rod being firmly connected to each of the levers (2a).
  5. Arrangement according to one of Claims 1 to 4, a second lever (2b) bearing a second guide roller (3b) in effectively the same way as the first lever (2a) bears the first guide roller (3a), with mutually parallel bearing axes, and both levers (2a, 2b) being designed as angled levers which are coupled in terms of movement by a thrust rod (9).
  6. Arrangement according to one of the preceding claims, having a paper stop (5, 5', 5") for the edge of the document (40) and having the additional feature:
    the paper stop (5', 5") forms one end of a lever mechanism (5, 22a, 13, 14, 10, 11, 12), whose other end (12) can be operated by the print head in a position outside the printing area, which has the effect of pivoting the paper stop (5', 5") into the paper transport path.
  7. Arrangement according to Claim 6, the lever mechanism comprising a paper stop lever (5, 5', 5") and a pivoting lever (10) and
    the paper stop lever (5) having a stop face (5', 5") which can be pivoted into the paper transport path (7) by rotation of the paper stop lever (5) about an axis (22b) parallel to the plane of the paper transport path (7) and perpendicular to the transport direction (A), and
    a pivoting lever (10) having an axis of rotation (11) perpendicular to the plane of the paper transport path (7), the said axis subdividing the pivoting lever into a short and a long lever arm, and the long lever arm operating the paper stop (5, 5', 5") via a driver (14), and the short lever arm being capable of being operated by the print head (1) by being positioned outside the printing area.
  8. Arrangement according to either of Claims 6 and 7, the print head, during a positioning movement leading away from the printing area, first operating the paper stop (5, 5', 5") and then being lowered.
  9. Arrangement according to Claim 8, at least two similar angled levers (2a, 2b) being used, on whose respective third bearing axis (22a, 22b), located between the fixed-position bearing (21a, 21b) and the bearing for the respective guide roller (23a, 23b), the print head (1) acts in the case of one of the two angled levers (2a), and the paper stop (5) acts in the case of the other angled lever (2b).
EP97915325A 1996-03-12 1997-03-03 Document conveyor and stop device Expired - Lifetime EP0960032B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19609659A DE19609659C1 (en) 1996-03-12 1996-03-12 Arrangement for coupling print head in printing device with print material roll
DE19609659 1996-03-12
PCT/DE1997/000385 WO1997033756A2 (en) 1996-03-12 1997-03-03 Document conveyor and stop device

Publications (2)

Publication Number Publication Date
EP0960032A2 EP0960032A2 (en) 1999-12-01
EP0960032B1 true EP0960032B1 (en) 2001-08-01

Family

ID=7788032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97915325A Expired - Lifetime EP0960032B1 (en) 1996-03-12 1997-03-03 Document conveyor and stop device

Country Status (5)

Country Link
US (1) US5961224A (en)
EP (1) EP0960032B1 (en)
JP (1) JP2000513664A (en)
DE (2) DE19609659C1 (en)
WO (1) WO1997033756A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2768366B1 (en) * 1997-09-12 1999-11-12 Secap MACHINE FOR PRINTING FLAT OBJECTS, ESPECIALLY OF ENVELOPES, WITH PRINTING DRUM AND THICKNESS COMPENSATOR
JP3022849B2 (en) * 1998-01-05 2000-03-21 セイコーエプソン株式会社 Printer
US6113289A (en) * 1998-01-05 2000-09-05 Seiko Epson Corporation Dot recording device
US6625117B1 (en) 1999-09-30 2003-09-23 International Business Machines Corporation Method and apparatus for switching messages from a primary message channel to a secondary message channel in a message queuing system
US6422772B1 (en) * 2000-06-29 2002-07-23 Eastman Kodak Company Printer having an interference-free receiver sheet feed path and method of assembling the printer
US6739683B2 (en) * 2000-10-02 2004-05-25 Seiko Epson Corporation Ink-jet recording apparatus
US6585439B2 (en) * 2000-12-15 2003-07-01 Hewlett-Packard Development Company, L.P. Printer media alignment apparatus and method
US6497466B1 (en) 2001-05-10 2002-12-24 Lexmark International, Inc. Automatic print gap adjustment assembly for an ink jet printer
US6986615B2 (en) * 2001-08-01 2006-01-17 Xerox Corporation Backlash reduction
US7591518B2 (en) * 2001-08-22 2009-09-22 Brother Kogyo Kabushiki Kaisha Image forming apparatus
US6726384B2 (en) 2001-11-28 2004-04-27 Lexmark International, Inc. Paper controlled clutch for a paper exit system in a printer
US20040054375A1 (en) * 2002-09-18 2004-03-18 Liganex Llc Methods and apparatus for vessel ligation
KR100485792B1 (en) 2002-12-30 2005-04-28 삼성전자주식회사 Sheet inserting limit apparatus for sheet feeding unit

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144388A1 (en) * 1981-11-07 1983-05-19 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen DEVICE FOR TRANSPORTING SINGLE FORMS OR FORM SETTING
DE3411685A1 (en) * 1983-04-01 1984-10-11 Canon K.K., Tokio/Tokyo RECORDING DEVICE
JPS60196369A (en) * 1984-03-19 1985-10-04 Fujitsu Ltd Thermal printer
US4620807A (en) * 1985-09-23 1986-11-04 Xerox Corporation Article transport for printers
DE3706573A1 (en) * 1987-02-28 1988-09-08 Mannesmann Ag DEVICE FOR ADJUSTING A PRINT HEAD TO THICK PRINTED MATERIAL IN A OFFICE MACHINE, IN PARTICULAR IN A SPARBOOK OR RECEIPT PRINTER
JPH0216061A (en) * 1988-07-04 1990-01-19 Matsushita Electric Ind Co Ltd Thermal transfer recorder
JPH0263782A (en) * 1988-08-30 1990-03-05 Juki Corp Printing head position adjustment mechanism
JPH02111576A (en) * 1988-10-20 1990-04-24 Seikosha Co Ltd Paper presser mechanism
JPH0712719B2 (en) * 1989-05-01 1995-02-15 スター精密株式会社 Printer for barcode paper
JP3350940B2 (en) * 1990-11-14 2002-11-25 セイコーエプソン株式会社 Printing equipment
DE4041985A1 (en) * 1990-12-21 1992-07-02 Mannesmann Ag PRINTER, IN PARTICULAR MATRIX PRINTER
DE4228765C2 (en) * 1992-08-28 1998-04-09 Francotyp Postalia Gmbh Pressure device for a franking machine with an electrothermal printing device
JP3349922B2 (en) * 1997-06-13 2002-11-25 富士通株式会社 Printer device

Also Published As

Publication number Publication date
US5961224A (en) 1999-10-05
JP2000513664A (en) 2000-10-17
EP0960032A2 (en) 1999-12-01
WO1997033756A2 (en) 1997-09-18
WO1997033756A3 (en) 1998-02-05
DE59704215D1 (en) 2001-09-06
DE19609659C1 (en) 1997-04-17

Similar Documents

Publication Publication Date Title
EP0960032B1 (en) Document conveyor and stop device
DE3607079C2 (en)
DE1910157B2 (en)
EP0049016A1 (en) Transport mechanism for webs of paper in accounting machines
EP0362976A2 (en) Device to feed web material to a treatment station
DE2319196C2 (en) Bearing arrangement for the pair of nip rollers of a self-development camera
DE1910625A1 (en) Front feed device for booking or other office machines
DE2010964C2 (en) Ejection device for documents in a processing unit
DE2655098B2 (en) Document feeder
DE2516946C3 (en) Drive device for a sheet insert
DE3104931C2 (en)
EP0004337B1 (en) Device for the development of printing plates provided with paired horizontal upper and lower rollers
DE2110171A1 (en) Height position measurement for printing material from a strip printer
EP0705762A1 (en) Apparatus for printing and/or dispensing labels
EP0049376A1 (en) Roll carrier
DE3147415C2 (en) Device for transporting receipt forms or the like in a printing device
DE60121486T2 (en) Stencil restraint
DE3133028C2 (en) Device for the individual removal of sheet-shaped printed matter, in particular newspapers
DE3343785C2 (en)
DE19913639C1 (en) Envelope handling machine has base plate with handling heads actuated by linkage with stops
DE3320613C2 (en) Method for cutting off a web that carries records, as is used in printers or office machines, and device for carrying out the method
DE2715506C3 (en) Document feed and printing device
DE2343859C3 (en) Frame construction for an electromechanical writing mechanism
DE4435467C2 (en) Hand labeling device
DE3217647C2 (en) Hand-held labeling machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980903

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: WINCOR NIXDORF GMBH & CO KG

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20001120

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 59704215

Country of ref document: DE

Date of ref document: 20010906

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011004

EN Fr: translation not filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

EN Fr: translation not filed

Free format text: BO 01/52 PAGES: 283, IL Y A LIEU DE SUPPRIMER: LA MENTION DE LA NON REMISE. LA REMISE EST PUBLIEE DANS LE PRESENT BOPI.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090324

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090326

Year of fee payment: 13

Ref country code: DE

Payment date: 20090529

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090318

Year of fee payment: 13

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100303

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100303

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100303