EP0122671A1 - Heating plate for a reprographic machine - Google Patents

Heating plate for a reprographic machine Download PDF

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Publication number
EP0122671A1
EP0122671A1 EP84200503A EP84200503A EP0122671A1 EP 0122671 A1 EP0122671 A1 EP 0122671A1 EP 84200503 A EP84200503 A EP 84200503A EP 84200503 A EP84200503 A EP 84200503A EP 0122671 A1 EP0122671 A1 EP 0122671A1
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EP
European Patent Office
Prior art keywords
heating
heating plate
receive
plate according
housings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84200503A
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German (de)
French (fr)
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EP0122671B1 (en
Inventor
Gilles Bailleul
Patrick Coville
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.)
Thermocoax SAS
Koninklijke Philips NV
Original Assignee
Thermocoax SAS
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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Publication date
Application filed by Thermocoax SAS, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Thermocoax SAS
Publication of EP0122671A1 publication Critical patent/EP0122671A1/en
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Publication of EP0122671B1 publication Critical patent/EP0122671B1/en
Expired legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
    • G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0416—Drying webs by conduction

Definitions

  • the invention relates to a hot plate and finds its application in the production of ovens for drying inked papers in reprographic machines.
  • the metal heating plate has a smooth upper face intended to receive the paper and a lower face provided with a heating means constituted by the printed circuit of a heating resistance produced by screen printing on a plastic film, the latter serving as insulation between the metal plate on which it is fixed and the heating printed circuit.
  • a heating means constituted by the printed circuit of a heating resistance produced by screen printing on a plastic film, the latter serving as insulation between the metal plate on which it is fixed and the heating printed circuit.
  • This device is very fragile because the plastic film does not long resist the effects of the temperature to which it is subjected which can reach 140 ° C. In addition, it may be subjected to accidental breakdowns between the heating circuit and the metal plate. In all cases, the circuit is destroyed by cutting off the heating conductor.
  • the heating circuit also produced by screen printing, is deposited on a ceramic support which serves as an insulator between the metal plate and the circuit, as is the plastic film in the first device mentioned.
  • the disadvantage here resides in the fact that the ceramic does not withstand thermal shocks due to sudden heating and cooling when the power is turned on or the power supply is interrupted. '' When the ceramic breaks, the heating circuit which is deposited there is broken.
  • the heating elements are stretched tungsten wires.
  • This device has the drawback of having to be permanently on since the time necessary for the support plate to reach a temperature sufficient for drying the inked papers is very long.
  • the object of the invention is therefore to provide a device which does not deteriorate under the action of temperature or thermal shock, while presenting the possibility of reaching the temperature of use practically instantaneously.
  • the heating plate consists of a metal sheet, the rectangular central portion of which receives the inked paper has a large dimension at least equal to the width paper perpendicular to the direction of movement of the latter, and whose two edges parallel to the large dimension are folded towards the bottom of the heating plate so as to form under the latter two housings intended to receive and immobilize each a heating element.
  • the heating elements are of the "shielded with mineral insulator" type.
  • the shape and the internal dimensions of the housings are provided that are substantially identical to the shape and dimensions of the cross section of a heating element so as to create good thermal contact.
  • the housings are made in cylindrical or prismatic shape respectively.
  • the heating elements after having been introduced into their housing, can be either crimped, or welded, or brazed, so as to establish a better thermal contact with the heating plate.
  • Figure 1 shows a longitudinal section of a heating plate relative to the direction of movement of the inked paper thereon, equipped with heating elements of cylindrical shape.
  • FIG. 2 shows a cross section of the same heating plate, in the plane of the axis of one of the heating elements.
  • the heating plate constituted p. ex. of a sheet of aluminum 0.5 mm thick has a rectangular part l, 27 mm by 220 mm, whose edges parallel to the large dimension are rolled towards the bottom of the plate so as to form two housings cylindrical 3 and 4, diameter 4 mm intended to receive the heating elements 5 and 6 cylindrical, length 230 mm and diameter 3.7 mm.
  • the intervals 11 and 12 between the heating element and its housing can be filled either by a tightening of the housing around the heating element (crimping), or by a tin-lead solder at a temperature of 210 °, or by silver-copper-cadmium solder at a temperature of 600 ° in order to ensure good thermal contact between the elements and the heating plate.
  • Figure 2 shows with respect to the direction of movement of the paper a cross section of the heating element 5 (or 6 since these elements are identical) in its housing 3 (or 4).
  • the 220 mm nickel-chromium coil 20 heated resistor is mechanically protected by a stainless steel sheath 21 with a diameter of 3.7 mm and a length of 230 mm, filled with magnesia powder 22 which provides electrical protection.
  • Two nickel rods 7 (or 9) and 8 (or 10) are threaded at each end 27 and 28 of the resistor 20 and are welded to it over a length of 5 mm, so as to form the electrical outputs.
  • the conductors 7 (or 9) and 8 (or 10) are isolated from the sheath 20 by two polytetrafluoroethylene (PTFE) plugs (23 and 24).
  • the sheath is made moisture-tight by two caps of epoxy resin (25 and 26).
  • the outputs 7 and 8 of the heating element 5, as well as the outputs 9 and 10 of the heating element 6 are connected either to each other or to the voltage supply, so that the heating elements are connected in series -if the voltage supply is 220 volts, or in parallel if the voltage supply is 110 volts. Under these conditions, the operating temperature of such a heating plate, which is 140 ° C., is reached in 14 seconds.
  • the invention applies to reprographic machines in general and more particularly to facsimile machines, because the fact that its operating temperature is reached very quickly, such a heating plate is capable of being put into operation by the same order which activates the fax system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Fixing For Electrophotography (AREA)

Abstract

L'invention concerne une plaque chauffante permettant la réalisation de fours destinés au séchage des papiers encrés dans les machines reprographiques. La plaque chauffante, constituée d'une feuille métallique, comprend une partie centrale rectangulaire (1), destinée à recevoir le papier encré, dont la grande dimension est au moins égale à la largeur du papier encré perpendiculairement au sens de déplacement de ce dernier, et dont les deux bords parallèles à la grande dimension sont repliés vers le bas pour former deux logements (3 et 4) destinés à recevoir des éléments chauffants du type "blindé à isolant minéral", la forme et les dimensions intérieures de la section droite de ces logements étant prévues sensiblement identiques à la forme et aux dimensions extérieures d'un élément chauffant.The invention relates to a hot plate for making ovens for drying inked papers in reprographic machines. The heating plate, consisting of a metal sheet, comprises a rectangular central part (1), intended to receive the inked paper, the large dimension of which is at least equal to the width of the inked paper perpendicular to the direction of movement of the latter, and whose two edges parallel to the large dimension are folded down to form two housings (3 and 4) intended to receive heating elements of the "armored mineral insulated" type, the shape and the internal dimensions of the straight section of these housings being provided substantially identical to the shape and external dimensions of a heating element.

Description

L'invention concerne une plaque chauffante et trouve son application dans la réalisation de fours destinés au séchage des papiers encrés dans les machines reprographiques.The invention relates to a hot plate and finds its application in the production of ovens for drying inked papers in reprographic machines.

Dans un premier type de fours connu pour cette application, la plaque métallique chauffante présente une face supérieure lisse destinée à recevoir le papier et une face inférieure munie d'un moyen de chauffage constitué par le circuit imprimé d'une résistance chauffante réalisée par sérigraphie sur un film plastique, ce dernier servant d'isolant entre la plaque métallique sur laquelle il est fixé et le circuit imprimé chauffant. Ce dispositif est très fragile car le film plastique ne résiste pas longtemps aux effets de la température à laquelle il est soumis qui peut at- teindre 140°C. De plus, il peut être soumis à des claquages accidentels entre le circuit chauffant et la plaque métallique. Dans tous les cas, le circuit est détruit par coupure du conducteur chauffant.In a first type of oven known for this application, the metal heating plate has a smooth upper face intended to receive the paper and a lower face provided with a heating means constituted by the printed circuit of a heating resistance produced by screen printing on a plastic film, the latter serving as insulation between the metal plate on which it is fixed and the heating printed circuit. This device is very fragile because the plastic film does not long resist the effects of the temperature to which it is subjected which can reach 140 ° C. In addition, it may be subjected to accidental breakdowns between the heating circuit and the metal plate. In all cases, the circuit is destroyed by cutting off the heating conductor.

Dans un second dispositif connu de ce genre, le circuit chauffant, réalisé également par sérigraphie, est déposé sur un support en céramique qui sert d'isolant entre la plaque métallique et le circuit, de même que le film plastique dans le premier dispositif cité. L'inconvénient réside ici dans le fait que la céramique ne supporte pas les chocs thermiques dus aux brusques réchauffements et refroidissements au moment de la mise sous tension ou de l'interruption de l'alimentation électrique. 'Lorsque la céramique casse, il y a rupture du circuit chauffant qui y est déposé.In a second known device of this kind, the heating circuit, also produced by screen printing, is deposited on a ceramic support which serves as an insulator between the metal plate and the circuit, as is the plastic film in the first device mentioned. The disadvantage here resides in the fact that the ceramic does not withstand thermal shocks due to sudden heating and cooling when the power is turned on or the power supply is interrupted. '' When the ceramic breaks, the heating circuit which is deposited there is broken.

Dans un troisième dispositif connu de ce genre, les éléments chauffants sont des fils de tungstène tendus. Ce dispositif présente l'inconvénient de devoir être en permanence sous tension car le temps nécessaire pour permettre à la plaque support d'at- teindre une température suffisant au séchage des papiers encrés, est très long.In a third known device of this kind, the heating elements are stretched tungsten wires. This device has the drawback of having to be permanently on since the time necessary for the support plate to reach a temperature sufficient for drying the inked papers is very long.

Le but de l'invention est donc de fournir un dispositif qui ne se détériore pas sous l'action de la température ou des chocs thermiques, tout en présentant la possibilité d'atteindre la température d'utilisation pratiquement instantanément.The object of the invention is therefore to provide a device which does not deteriorate under the action of temperature or thermal shock, while presenting the possibility of reaching the temperature of use practically instantaneously.

Dans un dispositif, tel que décrit dans le préambule, ce but est atteint du fait que la plaque chauffante est constituée d'une feuille métallique, dont la partie centrale rectangulaire destinée à recevoir le papier encré présente une grande dimension au moins égale à la largeur du papier perpendiculairement au sens de déplacement de ce dernier, et dont les deux bords parallèles à la grande dimension sont pliés vers le dessous de la plaque chauffante de manière à former sous cette dernière deux logements destinés à recevoir et à immobiliser chacun un élément chauffant.In a device, as described in the preamble, this object is achieved by the fact that the heating plate consists of a metal sheet, the rectangular central portion of which receives the inked paper has a large dimension at least equal to the width paper perpendicular to the direction of movement of the latter, and whose two edges parallel to the large dimension are folded towards the bottom of the heating plate so as to form under the latter two housings intended to receive and immobilize each a heating element.

Dans un mode de réalisation amélioré de l'invention, les éléments chauffants sont du type "blindé à isolant minéral".In an improved embodiment of the invention, the heating elements are of the "shielded with mineral insulator" type.

Dans un autre mode de réalisation de l'invention, la forme et les dimensions intérieures des logements sont prévues sensiblement identiques à la forme et aux dimensions de la section droite d'un élément chauffant de manière à créer un bon contact thermique.In another embodiment of the invention, the shape and the internal dimensions of the housings are provided that are substantially identical to the shape and dimensions of the cross section of a heating element so as to create good thermal contact.

Selon la forme des éléments chauffants utilisés, qui peut être cylindrique ou prismatique, les logements sont réalisés de forme cylindrique ou prismatique respectivement.Depending on the shape of the heating elements used, which can be cylindrical or prismatic, the housings are made in cylindrical or prismatic shape respectively.

D'autre part, les éléments chauffants, après avoir été introduits dans leur logement, peuvent être soit sertis, soit soudés, soit brasés, de manière à établir avec la plaque chauffante un meilleur contact thermique.On the other hand, the heating elements, after having been introduced into their housing, can be either crimped, or welded, or brazed, so as to establish a better thermal contact with the heating plate.

.Les particularités de l'invention et les modes de réalisation conformes à l'invention apparaissent de façon plus précise dans la description suivante en regard des dessins annexés, le tout étant donné à titre d'exemple.. The features of the invention and the embodiments according to the invention appear more precisely in the following description with reference to the accompanying drawings, all given by way of example.

La figure 1 représente une coupe longitudinale d'une plaque chauffante par rapport au sens de déplacement du papier encré sur celle-ci, équipée d'éléments chauffants de forme cylindrique.Figure 1 shows a longitudinal section of a heating plate relative to the direction of movement of the inked paper thereon, equipped with heating elements of cylindrical shape.

La figure 2 représente une coupe transversale d'une même plaque chauffante, dans le plan de l'axe d'un des éléments chauffants.2 shows a cross section of the same heating plate, in the plane of the axis of one of the heating elements.

Telle que représentée sur la figure 1, la plaque chauffante, constituée p. ex. d'une feuille d'aluminium de 0,5 mm d'épaisseur présente une partie rectangulaire l, de 27 mm sur 220 mm, dont les bords parallèles à la grande dimension sont roulés vers le dessous de la plaque de manière à former deux logements cylindriques 3 et 4, de diamètre 4 mm destinés à recevoir les éléments chauffants 5 et 6 cylindriques, de longueur 230 mm et de diamètre 3,7 mm. Les intervalles 11 et 12 entre l'élément chauffant et son logement peuvent être comblés soit par un resserrage du logement autour de l'élément chauffant (sertissage), soit par une soudure à l'étain-plomb à une température de 210°, soit par une brasure à l'argent-cuivre-cadmiùm à une température de 600° afin d'assurer un bon contact thermique entre les éléments et la plaque chauffante.As shown in Figure 1, the heating plate, constituted p. ex. of a sheet of aluminum 0.5 mm thick has a rectangular part l, 27 mm by 220 mm, whose edges parallel to the large dimension are rolled towards the bottom of the plate so as to form two housings cylindrical 3 and 4, diameter 4 mm intended to receive the heating elements 5 and 6 cylindrical, length 230 mm and diameter 3.7 mm. The intervals 11 and 12 between the heating element and its housing can be filled either by a tightening of the housing around the heating element (crimping), or by a tin-lead solder at a temperature of 210 °, or by silver-copper-cadmium solder at a temperature of 600 ° in order to ensure good thermal contact between the elements and the heating plate.

La figure 2 montre par rapport au sens de déplacement du papier une coupe transversale de l'élément chauffant 5 (ou 6 puisque ces éléments sont identiques) dans son logement 3 (ou 4). La résistance chauffante bobinée 20 en nickel-chrome de longueur 220 mm est protégée mécaniquement par une gaine en acier inoxydable 21 de diamètre 3,7 mm et de longueur 230 mm, emplie de poudre de magnésie 22 qui assure la protection électrique. Deux tiges en nickel 7 (ou 9) et 8 (ou 10) sont enfilées à chaque extrémité 27 et 28 de la résistance 20 et y sont soudées sur une longueur de 5 mm, de façon à former les sorties électriques.Figure 2 shows with respect to the direction of movement of the paper a cross section of the heating element 5 (or 6 since these elements are identical) in its housing 3 (or 4). The 220 mm nickel-chromium coil 20 heated resistor is mechanically protected by a stainless steel sheath 21 with a diameter of 3.7 mm and a length of 230 mm, filled with magnesia powder 22 which provides electrical protection. Two nickel rods 7 (or 9) and 8 (or 10) are threaded at each end 27 and 28 of the resistor 20 and are welded to it over a length of 5 mm, so as to form the electrical outputs.

Les conducteurs 7 (ou 9) et 8 (ou 10) sont isolés de la gaine 20 par deux bouchons de polytétrafluoréthylène (PTFE) (23 et 24). La gaine est rendue étanche à l'humidité par deux bouchons de résine époxide (25 et 26).The conductors 7 (or 9) and 8 (or 10) are isolated from the sheath 20 by two polytetrafluoroethylene (PTFE) plugs (23 and 24). The sheath is made moisture-tight by two caps of epoxy resin (25 and 26).

Les sorties 7 et 8 de l'élément chauffant 5, ainsi que les sorties 9 et 10 de l'élément chauffant 6 sont raccordées soit entre elles soit à l'alimentation en tension, de manière à ce que les éléments chauffants soient montés en série-si l'alimentation en tension est 220 volts, ou en parallèle si l'alimentation en tension est 110 volts. Dans ces conditions, la température de fonctionnement d'une telle plaque chauffante, qui est 1400 C, est atteinte en 14 secondes.The outputs 7 and 8 of the heating element 5, as well as the outputs 9 and 10 of the heating element 6 are connected either to each other or to the voltage supply, so that the heating elements are connected in series -if the voltage supply is 220 volts, or in parallel if the voltage supply is 110 volts. Under these conditions, the operating temperature of such a heating plate, which is 140 ° C., is reached in 14 seconds.

Dans un plaque chauffante selon l'invention, aucune possibilité de cassures dues aux chocs thermiques ne peut intervenir du fait que toutes les parties du dispositif qui sont soumises à une température élevée, sont métalliques ou réfractaires.In a heating plate according to the invention, no possibility of breakage due to thermal shock can occur because all the parts of the device which are subjected to a high temperature are metallic or refractory.

L'invention s'applique aux machines reprographiques en général et plus particulièrement aux télécopieurs, car du fait que sa température de fonctionnement est atteinte très rapidement, une telle plaque chauffante est apte à être mise en fonctionnement par le même ordre qui met en fonctionnement le système de télécopie.The invention applies to reprographic machines in general and more particularly to facsimile machines, because the fact that its operating temperature is reached very quickly, such a heating plate is capable of being put into operation by the same order which activates the fax system.

Il est manifeste enfin que l'application de l'invention aux machines reprographiques n'est pas limitative, et que d'autre part, pour l'homme de l'art, de nombreuses variantes peuvent être imaginées sans pour cela sortir du cadre de la présente invention tel que défini par les revendications ci-après annexées.Finally, it is obvious that the application of the invention to reprographic machines is not limiting, and that on the other hand, for those skilled in the art, many variants can be imagined without departing from the scope of the present invention as defined by the claims below appended.

Claims (10)

1. Plaque chauffante pour machine reprographique, caractérisée en ce qu'elle est constituée d'une feuille métallique dont la partie centrale rectangulaire, destinée à recevoir le papier encré, présente une grande dimension au moins égale à la largeur du papier perpendiculairement au sens de déplacement de ce dernier, et dont les deux bords parallèles à la grande dimension sont pliés vers le dessous de la plaque chauffante de manière à former sous cette dernière'deux logements destinés à recevoir et à immobiliser chacun un élément chauffant.1. Heating plate for reprographic machine, characterized in that it consists of a metal sheet whose rectangular central part, intended to receive the inked paper, has a large dimension at least equal to the width of the paper perpendicular to the direction of displacement of the latter, and whose two edges parallel to the large dimension are folded towards the bottom of the heating plate so as to form under the latter'deux housings intended to receive and immobilize each a heating element. 2. Plaque chauffante selon la revendication 1, caractérisée en ce que les éléments chauffants sont du type "blindé à isolant minéral".2. Heating plate according to claim 1, characterized in that the heating elements are of the type "shielded with mineral insulation". 3. Plaque chauffante selon l'une des revendications 1 et 2, caractérisée en ce que la forme et les dimensions intérieures de la section droite des logements qui recoivent les éléments chauffants sont prévues sensiblement identiques à la forme et aux dimensions de la section droite d'un élément chauffant de manière à créer un bon contact thermique.3. Heating plate according to one of claims 1 and 2, characterized in that the shape and the internal dimensions of the cross section of the housings which receive the heating elements are provided substantially identical to the shape and dimensions of the cross section d 'a heating element so as to create a good thermal contact. 4. Plaque chauffante selon l'une des revendications 1 à 3, caractérisée en ce que les éléments chauffants et les logements qui les recoivent sont cylindriques.4. Heating plate according to one of claims 1 to 3, characterized in that the heating elements and the housings which receive them are cylindrical. 5. Plaque chauffante selon l'une des revendications 1 à 4, caractérisée en ce que les éléments chauffants et les logements qui les reçoivent sont prismatiques.5. Heating plate according to one of claims 1 to 4, characterized in that the heating elements and the housings which receive them are prismatic. 6. Plaque chauffante selon l'une des revendications 1 à 5, caractérisée en ce que les éléments sont fixés dans leur logement par sertissage.6. Heating plate according to one of claims 1 to 5, characterized in that the elements are fixed in their housing by crimping. 7.' Plaque chauffante selon l'une des revendications 1 à 5, caractérisée en ce que les éléments chauffants sont fixés dans les logements qui les reçoivent par soudure au moyen d'un métal dont le point de fusion est supérieur à la température de fonctionnement de la plaque chauffante.7. ' Heating plate according to one of claims 1 to 5, characterized in that the heating elements are fixed in the housings which receive them by welding using a metal whose melting point is higher than the operating temperature of the plate heating. 8. Plaque chauffante selon l'une des revendications 1 à 5, caractérisée en ce que les éléments chauffants sont fixés dans leur logement par brasure, à l'aide de métaux compatibles avec les métaux constituant la plaque et les éléments chauffants.8. Heating plate according to one of claims 1 to 5, characterized in that the heating elements are fixed in their housing by brazing, using metals compatible with the metals constituting the plate and the heating elements. 9. Plaque chauffante selon l'une des revendications 1 à 8, caractérisée en ce qu'elle est constituée d'une feuille d'aluminium de 0,5 mm d'épaisseur dont la partie centrale rectangulaire a pour dimensions 27 x 220 mm et dont les bords sont roulés vers le dessous de la plaque pour former des logements cylindriques destinés à recevoir des éléments chauffants du type blindé à isolant minéral, de 3,7 mm de diamètre et de 230 mm de long.9. Heating plate according to one of claims 1 to 8, characterized in that it consists of an aluminum sheet 0.5 mm thick whose rectangular central part has the dimensions 27 x 220 mm and the edges of which are rolled towards the bottom of the plate to form cylindrical housings intended to receive heating elements of the armored type with mineral insulation, 3.7 mm in diameter and 230 mm long. 10. Plaque chauffante selon l'une des revendications 1 à 9 caractérisée en ce que les éléments chauffants sont montés en série pour être alimentés sous une tension de 220 volts, et en parallèle pour être alimentés sous une tension de 110 volts, et en-ce que sa température de fonctionnement de 140°C est atteinte en 14 secondes.10. Heating plate according to one of claims 1 to 9 characterized in that the heating elements are mounted in series to be supplied with a voltage of 220 volts, and in parallel to be supplied with a voltage of 110 volts, and in- that its 140 ° C operating temperature is reached in 14 seconds.
EP84200503A 1983-04-15 1984-04-11 Heating plate for a reprographic machine Expired EP0122671B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8306226A FR2544516B1 (en) 1983-04-15 1983-04-15 HEATING PLATE FOR REPROGRAPHIC MACHINE
FR8306226 1983-04-15

Publications (2)

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EP0122671A1 true EP0122671A1 (en) 1984-10-24
EP0122671B1 EP0122671B1 (en) 1987-11-04

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EP84200503A Expired EP0122671B1 (en) 1983-04-15 1984-04-11 Heating plate for a reprographic machine

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US (1) US4554434A (en)
EP (1) EP0122671B1 (en)
JP (1) JPS59207274A (en)
DE (1) DE3467258D1 (en)
FR (1) FR2544516B1 (en)

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JPS59207274A (en) 1984-11-24
US4554434A (en) 1985-11-19
FR2544516B1 (en) 1985-06-14
FR2544516A1 (en) 1984-10-19
DE3467258D1 (en) 1987-12-10
EP0122671B1 (en) 1987-11-04

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