EP0169087A1 - Feeding system for an electrostatic copier - Google Patents

Feeding system for an electrostatic copier Download PDF

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Publication number
EP0169087A1
EP0169087A1 EP85400931A EP85400931A EP0169087A1 EP 0169087 A1 EP0169087 A1 EP 0169087A1 EP 85400931 A EP85400931 A EP 85400931A EP 85400931 A EP85400931 A EP 85400931A EP 0169087 A1 EP0169087 A1 EP 0169087A1
Authority
EP
European Patent Office
Prior art keywords
brush
photoreceptor
ink
assembly
cam
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.)
Withdrawn
Application number
EP85400931A
Other languages
German (de)
French (fr)
Inventor
Jean-Claude Berger
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.)
TETRAS SA
Original Assignee
TETRAS SA
MECILEC SA
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 TETRAS SA, MECILEC SA filed Critical TETRAS SA
Publication of EP0169087A1 publication Critical patent/EP0169087A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
    • G03G21/1676—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
    • G03G21/1647—Mechanical connection means
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
    • G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
    • G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
    • G03G2221/1654—Locks and means for positioning or alignment

Definitions

  • the subject of the present invention is a charging assembly for an electrostatic copier enabling charging with ink or "toner” or with any substance ensuring printing of the copy, change of magnetic cylinder or brush and photoreceptor.
  • a latent image is formed on a rigid or flexible photoreceptor, that is to say essentially a cylinder, sleeve or equivalent, and that this image is embodied by zones of electrification, corresponding to the drawing of the original, on which will be fixed the particles of what, for simplicity, we will call here the ink.
  • This deposit of particles will then be transferred to the copy medium.
  • a magnetic cylinder called a brush is used, the surface of which is magnetized and on which the particles from an ink tank are deposited. The deposition of particles along the lines of force of the field gives the cylinder thus covered a hairy appearance.
  • the brush generally rotating at a speed greater than that of movement of the photoreceptor brings the ink particles in the vicinity of the latter and the particles come to be fixed in the adequately electrified zones.
  • the brush therefore rotates close to the surface of the photoreceptor so that at all times a generator of the brush is in the immediate vicinity of a generator of the photoreceptor, the difference in circulation speed ensuring the transfer of an amount of particles on the photoreceptor.
  • the present invention does not cover the magnetic brush itself, nor the photoreceptor itself (which can be of any known type), but essentially the assembly device for the assembly ensuring the deposition of the ink on the areas wanted from the photoreceptor (whatever the types of "toner” inks or other powdery components ensuring the final impression, and whether they are in an encapsulated or other form), whatever the type of brush and its mounting and whatever the type of photoreceptor (rigid or flexible, cylinder, sleeve or other).
  • the overall structure is generally constituted by two side plates held parallel to each other by spacers. Between these plates, are mounted the cylinders and displacement elements of the photoreceptor, copies and possibly of the original as well as the sets of shooting and printing cold or hot, pressurized or pressurized one or more constituents, one or more photoreceptor turns per cycle ranging from shooting to printing the copy and erasing the latent image.
  • the present invention therefore essentially consists of a device the purpose of which is to allow refilling with ink, the change of photoreceptor and brush. It is obvious that these various operations require initial precautions: the brush and / or the photoreceptor cannot be changed without initially separating them from one another, otherwise there would be a risk of deterioration and scattering of ink throughout the copier. It is also obvious that one must be able to refill with ink without risking false maneuvers, that is to say by freeing access to the ink tank without fear of deterioration of the constituent elements or this scattering of ink requiring delicate and unpleasant cleaning.
  • Another object of the invention is to be able to change the reservoir-brush assembly, thus making it possible to change the ink and in particular the printing color.
  • the present invention relates to a charging device for an electrostatic copier, comprising a member separating (or approaching in the working position) brush and photoreceptor in order to release the extraction of the photoreceptor (or block it in the working position) and to release the brush. and ink, toner or equivalent reservoir (or return them to the working position).
  • the present invention essentially relates to a control mechanism making it possible, from a first so-called working position, to spread in a second brush and photoreceptor position and in a third position to charge with ink or even to change the ink tank and brush assembly.
  • the device makes it possible to then carry out the operations for returning to the working position.
  • the reference 1 represents the photoreceptor cylinder or in the case of a flexible sleeve one of the cylinders over which the photoreceptor sleeve passes.
  • the photoreceptor surface passes in 2 along an inking generator where the ink of the magnetic cylinder or brush 3 comes in close proximity to the photoreceptor surface.
  • the cylinder 1 is rotatably mounted on the overall frame of the machine.
  • the brush 3 is rotatably mounted on an assembly 4 known as an inking assembly which essentially comprises the reservoir 5, the brush 3 and the leveling blade 6 known as the "doctor" blade which ensures the equalization of the ink on the surface of the brush .
  • This blade 6 is mounted by any conventional adequate means, generally screws 8 and springs 9 on the wall of the reservoir 5.
  • the clearance between doctor blade 6 and brush 3 must correspond to the desired thickness of ink deposited on the brush 3.
  • One or more deflectors 10 ensure the good distribution of the ink contained in the reservoir 5 on the surface of the brush 3.
  • the wall of the reservoir 5 extends at 11 below the brush 3 essentially to avoid ink dispersions in the machine.
  • the reservoir 5 is closed by a filling cover 12, for example with a hinge.
  • the inking unit 4 is mounted on an axis 13 integral with the frame of the machine so that it can be released by lifting.
  • the assembly 4 is biased towards the cylinder 1 or towards a stop to ensure the proximity between brush 3 and photoreceptor.
  • This stress is provided by a spring 14 stretched between a fixed point 15 of the frame of the machine not shown to simplify the figure and a point 16 of a lever 17 articulated around an axis 18 integral with the frame of the machine, a caster 19 of the lever 17 comes to bear on a surface 20 of the assembly 4, so that the biasing of the spring is exerted on the surface 20 tending to cause the assembly 4 to tilt to the right in the figure.
  • a part 22 rotating under the action for example of a crank handle 23.
  • This part 22 has an arm 23 whose end comes to block an element of the photoreceptor assembly, for example the axis of cylinder 1. This prevents both removing cylinder 1 from the brush 3 and extracting by axial sliding the cylinder 1 and the rest of the photoreceptor assembly, generally mounted in a drawer in the prior art.
  • the part 22 also carries a cam 24 which, by turning, pushes an element of the inking assembly 4, for example the axis 24 of the brush 3, against the stress of the spring 14. It is therefore conceivable that by turning the crank 23, the cylinder 1 is released and the ink assembly 4 is removed from the photoreceptor drawer (not shown in the figures for simplification) and the brush 3 is removed from the photoreceptor.
  • the roller 19, during this gap will go up from A to B. As long as it remains between a and B, it urges the ink-set towards the cam 24 and therefore towards the photoreceptor insofar as the position of the cam 24 authorizes it.

Abstract

Feeding system for an electrostatic copier, characterised in that it comprises an element for separating (or bringing towards the work position) the brush (3) and the photoreceptor, making it possible to free the extraction of the photoreceptor (or block it in the work position) and to release the brush (3) and the reservoir (5) for ink, toner or equivalent (or to return them to the work position). <IMAGE>

Description

La présente invention a pour objet un ensemble de chargement pour copieur électrostatique permettant le chargement en encre ou "toner" ou en toutes substances assurant l'impression de la copie, le changement de cylindre magnétique ou brosse et de photorécepteur.The subject of the present invention is a charging assembly for an electrostatic copier enabling charging with ink or "toner" or with any substance ensuring printing of the copy, change of magnetic cylinder or brush and photoreceptor.

On rappellera que classiquement dans les systèmes de reproduction électrostatique, une image latente est formée sur un photorécepteur rigide ou souple, c'est-à-dire essentiellement cylindre, manchon ou équivalent, et que cette image est concrétisée par des zones d'électrisation, correspondant au dessin de l'original, sur lesquelles vont se fixer les particules de ce que, par simplification, on appellera ici l'encre. Ce dépôt de particules sera ensuite transféré sur le support de copie. Pour encrer l'image latente, on utilise un cylindre magnétique appelé brosse dont la surface est magnétisée et sur laquelle se déposent les particules issues d'un réservoir d'encre. Le dépôt des particules le long des lignes de forces du champ donne au cylindre ainsi recouvert une apparence velue. La brosse tournant généralement à une vitesse supérieure à celle de défilement du photorécepteur amène les particules d'encre au voisinage de ce dernier et les particules viennent se fixer dans les zones adéquatement électrisées.It will be recalled that conventionally in electrostatic reproduction systems, a latent image is formed on a rigid or flexible photoreceptor, that is to say essentially a cylinder, sleeve or equivalent, and that this image is embodied by zones of electrification, corresponding to the drawing of the original, on which will be fixed the particles of what, for simplicity, we will call here the ink. This deposit of particles will then be transferred to the copy medium. To ink the latent image, a magnetic cylinder called a brush is used, the surface of which is magnetized and on which the particles from an ink tank are deposited. The deposition of particles along the lines of force of the field gives the cylinder thus covered a hairy appearance. The brush generally rotating at a speed greater than that of movement of the photoreceptor brings the ink particles in the vicinity of the latter and the particles come to be fixed in the adequately electrified zones.

La brosse tourne donc à proximité de la surface du photorécepteur de façon à ce qu'à chaque instant une génératrice de la brosse soit au voisinage immédiat d'une génératrice du photorécepteur, la différence de vitesse de circulation assurant le transfert d'une quantité de particules sur le photorécepteur.The brush therefore rotates close to the surface of the photoreceptor so that at all times a generator of the brush is in the immediate vicinity of a generator of the photoreceptor, the difference in circulation speed ensuring the transfer of an amount of particles on the photoreceptor.

La présente invention ne couvre ni la brosse magnétique en elle même, ni le photorécepteur en lui même, (qui peuvent être de tout type connu), mais essentiellement le dispositif de montage de l'ensemble assurant le dépôt de l'encre sur les zones voulues du photorécepteur (quels que soient les types d'encres "toners" ou autres composants pulvérulents assurant l'impression finale, et qu'il soient sous une forme encapsulée ou autre), quels que soient le type de brosse et son montage et quel que soit le type de photorécepteur (rigide ou souple, cylindre, manchon ou autre).The present invention does not cover the magnetic brush itself, nor the photoreceptor itself (which can be of any known type), but essentially the assembly device for the assembly ensuring the deposition of the ink on the areas wanted from the photoreceptor (whatever the types of "toner" inks or other powdery components ensuring the final impression, and whether they are in an encapsulated or other form), whatever the type of brush and its mounting and whatever the type of photoreceptor (rigid or flexible, cylinder, sleeve or other).

L'art antérieur est représenté par de nombreux brevets. On citera pour fixer les idées les deux documents suivants: demande française 79/24267 et demande européenne 82/1097060.The prior art is represented by numerous patents. To fix the ideas, the following two documents will be cited: French application 79/24267 and European application 82/1097060.

Dans les copieurs, la structure d'ensemble est généralement constituée par deux plaques latérales maintenues parallèles l'une à l'autre par des entretoises. Entre ces plaques, sont montés les cylindres et éléments de déplacement du photorécepteur, des copies et éventuellement de l'original ainsi que les ensembles de prise de vue et d'impression à froid ou à chaud, à pression ou sans pression, à encre à un ou plusieurs constituants, à un ou plusieurs tours de photorécepteur par cycle allant de la prise de vue à l'impression de la copie et à l'effacement de l'image latente.In copiers, the overall structure is generally constituted by two side plates held parallel to each other by spacers. Between these plates, are mounted the cylinders and displacement elements of the photoreceptor, copies and possibly of the original as well as the sets of shooting and printing cold or hot, pressurized or pressurized one or more constituents, one or more photoreceptor turns per cycle ranging from shooting to printing the copy and erasing the latent image.

Cette structure se retrouve dans la plupart des systèmes de copie et dans leurs dérivés (télécopie, imprimantes et autres), l'invention s'adaptant tout particulièrement à toutes ces variantes basées sur le même principe.This structure is found in most copying systems and their derivatives (fax, printers and others), the invention adapting particularly to all these variants based on the same principle.

La présente invention consiste donc essentiellement en un dispositif dont le but est de permettre le rechargement en encre, le changement de photorécepteur et de brosse. Il est évident que ces diverses opérations nécessitent des précautions initiales: on ne peut changer la brosse et/ou le photorécepteur sans les écarter initialement l'un de l'autre sinon on risquerait une détérioration et un éparpillement d'encre dans l'ensemble du copieur. Il est évident également que l'on doit pouvoir recharger en encre sans risquer de fausses manoeuvres c'est-à-dire en dégageant l'accès au réservoir d'encre sans craindre une détérioration des éléments constitutifs ou ces éparpillements d'encre nécessitant des nettoyages délicats et désagréables.The present invention therefore essentially consists of a device the purpose of which is to allow refilling with ink, the change of photoreceptor and brush. It is obvious that these various operations require initial precautions: the brush and / or the photoreceptor cannot be changed without initially separating them from one another, otherwise there would be a risk of deterioration and scattering of ink throughout the copier. It is also obvious that one must be able to refill with ink without risking false maneuvers, that is to say by freeing access to the ink tank without fear of deterioration of the constituent elements or this scattering of ink requiring delicate and unpleasant cleaning.

Un autre but de l'invention est de pouvoir changer l'ensemble réservoir-brosse permettant ainsi de changer d'encre et en particulier de couleur d'impression.Another object of the invention is to be able to change the reservoir-brush assembly, thus making it possible to change the ink and in particular the printing color.

On notera en passant que l'on peut sans sortir du cadre de l'invention multiplier le dispositif conforme à cette invention et assurer le transfert d'encres différentes sur le même photorécepteur pour assumer une polychromie généralement par impressions séquentielles des différentes composantes de couleur.It will be noted in passing that it is possible without departing from the scope of the invention to multiply the device according to this invention and to ensure the transfer of different inks on the same photoreceptor to assume a polychromy generally by sequential printing of the different color components.

La présente invention a pour objet un dispositif de chargement pour copieur électrostatique, comprenant un organe écartant (ou rapprochant en position de travail) brosse et photorécepteur afin de libérer l'extraction du photorécepteur (ou le bloquer en position de travail) et de dégager brosse et réservoir d'encre, toner ou équivalent (ou les ramener en position de travail).The present invention relates to a charging device for an electrostatic copier, comprising a member separating (or approaching in the working position) brush and photoreceptor in order to release the extraction of the photoreceptor (or block it in the working position) and to release the brush. and ink, toner or equivalent reservoir (or return them to the working position).

Pour ce faire, la présente invention a essentiellement pour objet un mécanisme de commande permettant à partir d'une première position dite de travail d'écarter dans une seconde position brosse et photorécepteur et dans une troisième de charger en encre ou même de changer l'ensemble réservoir d'encre et brosse. Le dispositif permet bien entendu d'effectuer ensuite les opérations de retour en position de travail.To do this, the present invention essentially relates to a control mechanism making it possible, from a first so-called working position, to spread in a second brush and photoreceptor position and in a third position to charge with ink or even to change the ink tank and brush assembly. The device of course makes it possible to then carry out the operations for returning to the working position.

Pour mieux faire comprendre les caractéristiques techniques et les avantages de la présente invention, on va en décrire un exemple de réalisation étant bien entendu que celui-ci n'est pas limitatif quant à son mode de mise en oeuvre et aux applications qu'on peut en faire.To better understand the technical characteristics and the advantages of the present invention, an embodiment will be described, it being understood that this is not limiting as to its mode of implementation and to the applications that can be make it.

On se référera aux figures suivantes qui représentent schématiquement:

  • - la figure 1 une coupe axiale d'un dispositif d'encrage conforme à la présente invention;
  • - la figure 2 une vue du haut du dispositif de la figure 1.
We will refer to the following figures which schematically represent:
  • - Figure 1 an axial section of an inking device according to the present invention;
  • - Figure 2 a top view of the device of Figure 1.

La référence 1 représente le cylindre photorécepteur ou dans le cas d'un manchon souple l'un des cylindres sur lesquels passe le manchon photorécepteur. La surface photoréceptrice passe en 2 le long d'une génératrice d'encrage où l'encre du cylindre magnétique ou brosse 3 vient à proximité immédiate de la surface photoréceptrice.The reference 1 represents the photoreceptor cylinder or in the case of a flexible sleeve one of the cylinders over which the photoreceptor sleeve passes. The photoreceptor surface passes in 2 along an inking generator where the ink of the magnetic cylinder or brush 3 comes in close proximity to the photoreceptor surface.

Le cylindre 1 est monté en rotation sur le bâti d'ensemble de la machine. La brosse 3 est montée à rotation sur un ensemble 4 dit ensemble-encreur qui comprend essentiellement le réservoir 5, la brosse 3 et la lame égalisatrice 6 dite lame "docteur" qui assure l'égalisation de l'encre à la surface de la brosse. Cette lame 6 est montée par tout moyen adéquat classique, généralement vis 8 et ressorts 9 sur la paroi du réservoir 5. Le jeu entre lame-docteur 6 et brosse 3 doit correspondre à l'épaisseur désirée d'encre déposée sur la brosse 3.The cylinder 1 is rotatably mounted on the overall frame of the machine. The brush 3 is rotatably mounted on an assembly 4 known as an inking assembly which essentially comprises the reservoir 5, the brush 3 and the leveling blade 6 known as the "doctor" blade which ensures the equalization of the ink on the surface of the brush . This blade 6 is mounted by any conventional adequate means, generally screws 8 and springs 9 on the wall of the reservoir 5. The clearance between doctor blade 6 and brush 3 must correspond to the desired thickness of ink deposited on the brush 3.

Un ou plusieurs déflecteurs 10 assurent la bonne répartition de l'encre contenu dans le réservoir 5 à la surface de la brosse 3. La paroi du réservoir 5 se prolonge en 11 en-dessous de la brosse 3 essentiellement pour éviter les dispersions d'encre dans la machine. Le réservoir 5 est fermé par un couvercle de remplissage 12 par exemple à charnière.One or more deflectors 10 ensure the good distribution of the ink contained in the reservoir 5 on the surface of the brush 3. The wall of the reservoir 5 extends at 11 below the brush 3 essentially to avoid ink dispersions in the machine. The reservoir 5 is closed by a filling cover 12, for example with a hinge.

L'ensemble-encreur 4 est monté sur un axe 13 solidaire du bâti de la machine de façon à pouvoir en être dégagé par soulèvement.The inking unit 4 is mounted on an axis 13 integral with the frame of the machine so that it can be released by lifting.

L'ensemble 4 est sollicité vers le cylindre 1 ou vers une butée pour assurer la proximité entre brosse 3 et photorécepteur. Cette sollicitation est assurée par un ressort 14 tendu entre un point fixe 15 du bâti de la machine non représenté pour simplifier la figure et un point 16 d'un levier 17 articulé autour d'un axe 18 solidaire du bâti de la machine, une roulette 19 du levier 17 vient s'appuyer sur une surface 20 de l'ensemble 4, de sorte que la sollicitation du ressort s'exerce sur la surface 20 tendant à faire basculer l'ensemble 4 vers la droite sur la figure.The assembly 4 is biased towards the cylinder 1 or towards a stop to ensure the proximity between brush 3 and photoreceptor. This stress is provided by a spring 14 stretched between a fixed point 15 of the frame of the machine not shown to simplify the figure and a point 16 of a lever 17 articulated around an axis 18 integral with the frame of the machine, a caster 19 of the lever 17 comes to bear on a surface 20 of the assembly 4, so that the biasing of the spring is exerted on the surface 20 tending to cause the assembly 4 to tilt to the right in the figure.

Sur un axe 21 solidaire du bâti de la machine, est montée à rotation une pièce 22 tournant sous l'action par exemple d'une poignée de manivelle 23. Cette pièce 22 présente un bras 23 dont l'extrémité vient bloquer un élément de l'ensemble photorécepteur par exemple l'axe du cylindre 1. Ceci empêche à la fois d'écarter le cylindre 1 de la brosse 3 et d'extraire par coulissement axial le cylindre 1 et le reste de l'ensemble photorécepteur, généralement monté en tiroir dans l'art antérieur.On a shaft 21 integral with the frame of the machine, there is mounted for rotation a part 22 rotating under the action for example of a crank handle 23. This part 22 has an arm 23 whose end comes to block an element of the photoreceptor assembly, for example the axis of cylinder 1. This prevents both removing cylinder 1 from the brush 3 and extracting by axial sliding the cylinder 1 and the rest of the photoreceptor assembly, generally mounted in a drawer in the prior art.

La pièce 22 porte également une came 24 qui, en tournant, repousse un élément de l'ensemble-encreur 4, par exemple l'axe 24 de la brosse 3, contre la sollicitation du ressort 14. On conçoit donc qu'en tournant la manivelle 23, on dégage le cylindre 1 et on écarte l'ensemble-encreur 4 tiroir photorécepteur (non représenté sur les figures par simplification) et d'écarter la brosse 3 du photorécepteur. La roulette 19, au cours de cet écart va monter de A en B. Tant qu'elle reste entre a et B, elle sollicite l'ensemble-encreur vers la came 24 et donc vers le photorécepteur dans la mesure où la position de la came 24 l'autorise.The part 22 also carries a cam 24 which, by turning, pushes an element of the inking assembly 4, for example the axis 24 of the brush 3, against the stress of the spring 14. It is therefore conceivable that by turning the crank 23, the cylinder 1 is released and the ink assembly 4 is removed from the photoreceptor drawer (not shown in the figures for simplification) and the brush 3 is removed from the photoreceptor. The roller 19, during this gap will go up from A to B. As long as it remains between a and B, it urges the ink-set towards the cam 24 and therefore towards the photoreceptor insofar as the position of the cam 24 authorizes it.

Ce premier passage de A en B et le basculement correspondant dégage partiellement la partie supérieure de l'ensemble 4. Mais si l'on poursuit le basculement en tirant l'ensemble 4 vers la gauche, la roulette 19 passe entre B et C sur une surface circulaire centrée sur l'axe 13, ce qui annihibe la sollicitation du ressort 14.This first passage from A to B and the corresponding tilt partially releases the upper part of the assembly 4. But if we continues tilting by pulling the assembly 4 to the left, the roller 19 passes between B and C on a circular surface centered on the axis 13, which inhibits the stressing of the spring 14.

On peut alors non seulement recharger en encre par le couvercle 12 mais extraire l'ensemble-encreur 4 par soulèvement ce qui permet soit de changer d'ensemble-encreur et par exemple de couleur, soit de changer la brosse, soit de régler la lame-docteur ou de vider le réservoir.We can then not only reload in ink through the cover 12 but extract the ink-assembly 4 by lifting which allows either to change the ink-assembly and for example of color, or to change the brush, or to adjust the blade -doctor or empty the tank.

On se trouve donc avec un système à positions successives:

  • - lère position de travail:
    • . manivelle 23 en position de la figure 2,
    • . roulette 19 entre A et B.
  • - 2ème position de changement de photorécepteur:
    • . manivelle 23 basculée,
    • . roulette 19 enter A et B.
  • - 3ème position de chargement d'encre et de changement de brosse:
    • . manivelle 23 basculée;
    • . roulette 19 entre B et C.
We are therefore with a system with successive positions:
  • - 1st working position:
    • . crank 23 in position of FIG. 2,
    • . roulette 19 between A and B.
  • - 2nd position for changing the photoreceptor:
    • . crank 23 tilted,
    • . roulette 19 enter A and B.
  • - 3rd position for ink loading and brush change:
    • . crank 23 tilted;
    • . roulette 19 between B and C.

On notera que sur les figures, n'ont pas été représentés les dispositifs d'entraînement en rotation de la brosse 3 et du cylindre 1. Il est évident que ceux-ci, et en particulier la brosse, peuvent venir au montage et à la mise en position de travail, en prise avec tout dispositif d'entraînement: galet, courroie, roue dentée, etc.It will be noted that in the figures, the drive devices for rotating the brush 3 and the cylinder 1 have not been shown. It is obvious that these, and in particular the brush, can come to mounting and put in working position, in engagement with any drive device: roller, belt, gear, etc.

Claims (5)

1.- Dispositif de chargement pour copieur électrostatique, caractérisé par le fait qu'il comprend un organe écartant (ou rapprochant en position de travail) brosse (3) et photorécepteur permettant de libérer l'extraction du photorécepteur (ou le bloquer en position de travail) et de dégager brosse (3) et réservoir (5) d'encre, toner ou équivalent (ou les ramener en position de travail).1.- Charging device for electrostatic copier, characterized in that it comprises a member separating (or approaching in the working position) brush (3) and photoreceptor making it possible to release the extraction of the photoreceptor (or block it in the position of work) and release the brush (3) and reservoir (5) of ink, toner or equivalent (or return them to the working position). 2.- Dispositif selon la revendication 1, caractérisé par le fait que ledit organe présente une came (24) d'écartement de la brosse (3) et du photorécepteur, la brosse (3) et le réservoir (5) d'encre étant ensemble ramenés contre l'action de la came (24) par un système de rappel.2.- Device according to claim 1, characterized in that said member has a cam (24) for spacing the brush (3) and the photoreceptor, the brush (3) and the ink tank (5) being set brought against the action of the cam (24) by a return system. 3.- Dispositif selon l'une des revendication 1 ou 2, caractérisé par le fait que ledit organe vient bloquer l'axe de l'un des cylindres de l'ensemble photorécepteur en position de travail.3.- Device according to one of claims 1 or 2, characterized in that said member blocks the axis of one of the cylinders of the photoreceptor assembly in the working position. 4.- Dispositif selon l'une des revendications 2 à 3, caractérisé par le fait que le système de rappel fonctionne lorsque la came est entre deux positions angulaires prédéfinies et est hors service lorsque la came dépasse l'une des positions angulaires, dégageant ainsi l'ensemble réservoir (5) d'encre-brosse (3).4.- Device according to one of claims 2 to 3, characterized in that the return system operates when the cam is between two predefined angular positions and is out of service when the cam exceeds one of the angular positions, thereby releasing the ink-brush reservoir (5) assembly (3). §/.- Dispositif selon la revendication 4, caractérisé par le fait que le système de rappel comprend au moins une roulette (19) montée sur un levier (17) rappelé par un ressort, ladite (19) roulette, qui s'appuie sur une surface solidaire de l'ensemble réservoir-brosse, étant composée d'une partie assurant le rappel pour les premières positions angulaires de la came et d'une partie circulaire centrée sur l'axe de basculement de l'ensemble réservoir-brosse quand la came dépasse l'une desdites positions angulaires.§ /.- Device according to claim 4, characterized in that the return system comprises at least one caster (19) mounted on a lever (17) biased by a spring, said (19) caster, which rests on a surface integral with the tank-brush assembly, being composed of a part ensuring the return for the first angular positions of the cam and of a circular part centered on the tilting axis of the tank-brush assembly when the cam exceeds one of said angular positions.
EP85400931A 1984-05-16 1985-05-13 Feeding system for an electrostatic copier Withdrawn EP0169087A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8407567A FR2564612B1 (en) 1984-05-16 1984-05-16 CHARGING ASSEMBLY FOR ELECTROSTATIC COPIER
FR8407567 1984-05-16

Publications (1)

Publication Number Publication Date
EP0169087A1 true EP0169087A1 (en) 1986-01-22

Family

ID=9304030

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Application Number Title Priority Date Filing Date
EP85400931A Withdrawn EP0169087A1 (en) 1984-05-16 1985-05-13 Feeding system for an electrostatic copier

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EP (1) EP0169087A1 (en)
FR (1) FR2564612B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603714A1 (en) * 1986-09-05 1988-03-11 Ricoh Kk Electrostatic recording device for copier, facsimile machine and printer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2072902A5 (en) * 1969-12-10 1971-09-24 Agfa Gevaert Ag
GB1317289A (en) * 1969-03-21 1973-05-16 Canon Kk Copying machine
FR2316640A1 (en) * 1975-07-04 1977-01-28 Agfa Gevaert Ag ELECTROPHOTOGRAPHIC REPROGRAPHY APPARATUS
FR2396340A1 (en) * 1977-06-29 1979-01-26 Agfa Gevaert Ag ELECTROSTATIC COPIER

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JPS57191652A (en) * 1981-05-22 1982-11-25 Fuji Xerox Co Ltd Rocking mechanism for processing unit of copying machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1317289A (en) * 1969-03-21 1973-05-16 Canon Kk Copying machine
FR2072902A5 (en) * 1969-12-10 1971-09-24 Agfa Gevaert Ag
FR2316640A1 (en) * 1975-07-04 1977-01-28 Agfa Gevaert Ag ELECTROPHOTOGRAPHIC REPROGRAPHY APPARATUS
FR2396340A1 (en) * 1977-06-29 1979-01-26 Agfa Gevaert Ag ELECTROSTATIC COPIER

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Title
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 38 (P-176) [1183], 16 février 1983, page 154 P 176; & JP - A - 57 191 652 (FUJI XEROX K.K.) 25-11-1982 *
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 42 (P-177) [1187], 19 février 1983; & JP - A - 57 192 985 (CANON K.K.) 27-11-1982 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2603714A1 (en) * 1986-09-05 1988-03-11 Ricoh Kk Electrostatic recording device for copier, facsimile machine and printer

Also Published As

Publication number Publication date
FR2564612A1 (en) 1985-11-22
FR2564612B1 (en) 1987-03-20

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