EP0024712A1 - Sheet delivery device in a copier - Google Patents

Sheet delivery device in a copier Download PDF

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Publication number
EP0024712A1
EP0024712A1 EP80105018A EP80105018A EP0024712A1 EP 0024712 A1 EP0024712 A1 EP 0024712A1 EP 80105018 A EP80105018 A EP 80105018A EP 80105018 A EP80105018 A EP 80105018A EP 0024712 A1 EP0024712 A1 EP 0024712A1
Authority
EP
European Patent Office
Prior art keywords
output device
film
copying
discharge element
copier
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
EP80105018A
Other languages
German (de)
French (fr)
Other versions
EP0024712B1 (en
Inventor
Roland Dr. Dipl.-Phys. Moraw
Renate Schädlich
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.)
Hoechst AG
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Hoechst AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0024712A1 publication Critical patent/EP0024712A1/en
Application granted granted Critical
Publication of EP0024712B1 publication Critical patent/EP0024712B1/en
Expired 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
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6552—Means for discharging uncollated sheet copy material, e.g. discharging rollers, exit trays
    • 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
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6588—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material
    • G03G15/6591—Apparatus which relate to the handling of copy material characterised by the copy material, e.g. postcards, large copies, multi-layered materials, coloured sheet material characterised by the recording material, e.g. plastic material, OHP, ceramics, tiles, textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5133—Removing electrostatic charge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00417—Post-fixing device
    • G03G2215/00421—Discharging tray, e.g. devices stabilising the quality of the copy medium, postfixing-treatment, inverting, sorting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00443—Copy medium
    • G03G2215/00493—Plastic
    • G03G2215/00497—Overhead Transparency, i.e. OHP
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00649—Electrodes close to the copy feeding path

Definitions

  • the invention relates to an output device of a copying machine for the stacking of PVC copying films in a storage container, with a fan, a transfer corona and a discharge brush in the interior of the copying machine.
  • the former Because of these different mechanisms of transferring toner images onto plastic films and onto paper, the former have difficulties when fixing the toner images and when stacking them after the copying process. A further difficulty still arises that the plastics sheets during the fusing generally must only be heated to a temperature between 110 ° C to 130 0 C in order to avoid a thermoplastic deformation of the films, while the fixing temperatures in paper to some can be set higher.
  • toner images on plastic films cannot yet be dry-wiped dry when fixed within the temperature range specified above.
  • Another disadvantage is the electrostatic charging of the plastic films, as a result of which, in contrast to paper copies, they cannot be stacked on top of one another in a storage container, but rather adhere to one another. This can lead to backlogs in the interior of the copying machine, since the subsequent copying foils are prevented from exiting by the foils adhering to one another in the storage container, or the copying foils are pushed out of the dispensing container.
  • the object of the invention is to improve an output device of a copying machine of the type described in the introduction so that the plastic films are dry, smudge-proof before being put down and without being able to adhere to one another electrostatically adhering to one another in the storage container.
  • This object is achieved in that on the outside of the copier above the output is arranged a tangential fan, the air flow of which presses a PVC copy film emerging from the output gap with the back against a discharge element.
  • the electrostatic charging of the copying films is sufficiently reduced by the grounded discharge element, which grazes along the upper edge of the charged back of the copying film, in order to enable proper stacking of the copying films in the storage container.
  • the air flow of the fan brings about both a complete drying of the toner image on the PVC copy film and an intimate contact between the back of the PVC copy film and the discharge element, which ensures that the electrostatic charges are dissipated from the back of the PVC copy film to ground is.
  • a further advantage is that the air flow from the fan pushes the foils downwards, resulting in a kind of snap movement of the foil downwards into the storage container. This snap movement also ensures that a film that has jammed, for example, and has not gotten properly into the storage container, is released from this clamping position and properly deposited.
  • FIG. 1 Of a copying machine 1, only the transport path of an image-receiving material, for example a plastic film, in the present case a PVC copying film 16, is shown in FIG. 1. It is obvious that the subject matter of the invention is not restricted to a PVC or a coated copier film, but is suitable for any plastic film. From a storage cassette (not shown) in the copying machine 1, a copying film 16 reaches a selenium drum 9, from the surface of which a toner image is transferred to the copying film 16 by means of a transfer corona 24.
  • a transfer corona 24 From a storage cassette (not shown) in the copying machine 1, a copying film 16 reaches a selenium drum 9, from the surface of which a toner image is transferred to the copying film 16 by means of a transfer corona 24.
  • the copying film 16 is included means of a guide spring, not shown, or a deflection belt, which partially abuts the circumference of the deflection roller 10, detached from the selenium drum 9 and guided to transport rollers 5 and 6.
  • These transport rollers 5 and 6 convey the copying film 16 through a fixing station, which is composed of a fixing pressure roller 11 and a heating plate 26 underneath. Below the heating plate 26 there is a fan 25, which contributes to drying the toner image on the copying film 16.
  • the copying film passes through the fixing station to discharge rollers 12 and 13, which are arranged near the housing wall of the copying machine 1 in front of an output nip 17. Above the discharge gap 17, a discharge brush 2 is attached to the inside of the housing wall of the copying machine 1, which contributes to the electrostatic discharge of the front side of the copying film 16.
  • the deflection roller 10, the transport roller 6, the fixing pressure roller 11 and the discharge roller 12 are driven via a transport chain 27, which is an endless chain via the aforementioned rollers, a deflection roller pair 7, 8, a chain tensioner 3 and a chain tensioner deflection roller 14 between the deflection roller 10 and the transport roller 6 rotates.
  • the deflecting roller 10 is driven in a manner not shown together with the selenium drum 9 via a gear.
  • a copy film 16 is shown, which lies with its front edge against a discharge element 18 which is on the outside of the housing wall of the Copier 1 is attached.
  • the discharge element 18 is connected to the ground point 19 and its upper edge lies higher than a transport plane 23, which is shown in broken lines in FIG. 1 and in which the copying film 16 is moved through the output gap 17.
  • the discharge element 18 consists of an elastic material and serves as an additional guide element for the copying film 16 emerging from the output nip 17.
  • the discharge rollers 12 and 13 advance the copying film 16, as a result of which the discharge element 18 is curved and with its upper edge under pressure on the back of the Copy film 16 abuts, as shown in dashed lines in Fig. 1.
  • a fan 20 for example a tangential fan, is arranged on the outside of the copying machine 1, which is oriented such that its air flow strikes the front of the copying film 16 perpendicularly. This air flow presses the copying film 16 against the discharge element 18 and thereby ensures a corresponding contact between the back of the copying film 16 and the discharge element 18.
  • the electrostatic charges located on the back of the copying film 16 are dissipated to ground via the discharge element 18.
  • the air flow of the tangential fan 20 causes the toner image on the copying film 16 to be wiped dry.
  • the collecting surface is angled such that the smaller part of the surface is horizontal and the larger part is directed obliquely upwards.
  • the electrostatically discharged copier films form a stack 16 'in the output container 15.
  • the discharge element 18 has the shape of a comb, for example, which is formed from individual sections. The upper edges 21 of these sections run horizontally, so that there is a line contact with the back of the copy film 16.
  • material for the discharge element 18 for example, an aluminum vapor-coated polyester film is used, which is up to to 100 ⁇ m, with a thickness of 75 ⁇ m being preferred.
  • the discharge element consists of a brush which is formed from elastic metal wires 22, as shown in FIG. 2b.
  • FIG. 3 Another embodiment of the invention is shown in FIG. 3 and differs from the embodiment according to FIG. 1 only in that the fan 20 is inclined relative to the transport plane 23 of the copying film 16. This inclination is adjustable so that the optimum flow direction of the air flow onto the copying film 16 can be set as required in order to obtain a deposit thereof in the output container without tilting the copying film.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Textile Engineering (AREA)
  • Pile Receivers (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

1. An output device of a copier for piling up plastic copying films in a receiving tray, comprising a ventilator (25), a transmission corona (24) and a first discharge element (2) in the interior of the copier, characterised in that a fan (20) is installed at the outside of the copier (1) above an output gap (17) whereby the air flow from the fan (20) presses the backside of a plastic copying film (16) coming out of the output gap (17) against a second discharge element (18).

Description

Die Erfindung betrifft eine Ausgabeeinrichtung eines Kopiergeräts für die stapelweise Ablage von PVC-Kopierfolien in einem Ablagebehälter, mit einem Lüfter, einer Ubertragungscorona und einer Entladungsbürste im Inneren des Kopiergeräts.The invention relates to an output device of a copying machine for the stacking of PVC copying films in a storage container, with a fan, a transfer corona and a discharge brush in the interior of the copying machine.

Es ist bekannt, mit herkömmlichen Kopiergeräten, die als Bildempfangsmaterial beschichtes oder unbeschichtetes Papier verwenden, Folien als Kopiermaterial zu verarbeiten. Im allgemeinen handelt es sich hierbei um beschichtete Polyesterfolien, die als Transparente vorgesehen sind und als Einzelkopien, die nicht gestapelt werden, anfallen. Für die dabei erzielbare Kopienqualität ist in starkem Maße die Qualität der jeweiligen Folien ausschlaggebend, da ein Zusammenhang zwischen der Kopienqualität und der Oberflächenstruktur der Folien besteht. Der Mechanismus der Übertragung der Tonerbilder auf Folien unterscheidet sich von dem der Übertragung auf Papier insofern, als die Kunststoff-Folien elektrisch gut isolieren und die Tonerflüssigkeit nicht aufsaugen, während Papier weniger gut isoliert und vor allem die Tonerflüssigkeit aufsaugt. Die Tonerbilder auf Kunststoff-Folien setzen sich rasterartig aus Tonerpunkten zusammen.It is known to use conventional copying machines which use coated or uncoated paper as image-receiving material to process foils as copying material. In general, these are coated polyester films that are provided as transparencies and are produced as individual copies that are not stacked. The quality of the respective foils is decisive for the copy quality that can be achieved, since there is a connection between the copy quality and the surface structure of the foils. The mechanism of transferring the toner images onto foils differs from that of transferring them onto paper in that the plastic foils provide good electrical insulation and do not absorb the toner liquid, while paper is less well insulated and especially absorbs the toner liquid. The toner images on plastic foils are made up of toner dots in a grid pattern.

Aufgrund dieser unterschiedlichen Mechanismen der Übertragung von Tonerbildern auf Kunststoff-Folien und auf Papier ergeben sich bei den ersteren Schwierigkeiten bei der Fixierung der Tonerbilder und bei der stapelweisen Ablage nach dem Kopiervorgang. Als weitere Schwierigkeit tritt noch auf, daß die Kunststoff-Folien während des Fixiervorgangs im allgemeinen nur bis auf eine Temperatur zwischen 110° C bis 1300 C erwärmt werden dürfen, um eine thermoplastische Verformung der Folien zu vermeiden, während die Fixiertemperaturen bei Papier um einiges höher eingestellt werden können.Because of these different mechanisms of transferring toner images onto plastic films and onto paper, the former have difficulties when fixing the toner images and when stacking them after the copying process. A further difficulty still arises that the plastics sheets during the fusing generally must only be heated to a temperature between 110 ° C to 130 0 C in order to avoid a thermoplastic deformation of the films, while the fixing temperatures in paper to some can be set higher.

Es ist ersichtlich, daß bei der Fixierung innerhalb des voranstehend angegebenen Temperaturbereichs die Tonerbilder auf Kunststoff-Folien, beispielsweise PVC-Kopierfolien noch nicht wischfest trocken sein können. Von Nachteil ist auch die elektrostatische Aufladung der Kunststoff-Folien, wodurch sich diese, im Gegensatz zu Papierkopien, in einem Ablagebehälter nicht übereinander stapeln lassen, sondern vielmehr aufeinander haften. Dadurch kann es zu Rückstaus in das Innere des Kopiergeräts kommen, da den nachfolgenden Kopierfolien durch die aufeinander haftenden Folien in dem Ablagebehälter der Austritt verwehrt wird, bzw. werden die Kopierfolien aus dem Ausgabebehälter rausgeschoben. Aufgabe der Erfindung ist es, eine Ausgabeeinrichtung eines Kopiergeräts der eingangs beschriebenen Art so zu verbessern, daß die Kunststoff-Folien vor der Ablage wischfest trocken sind und ohne daß sie elektrostatisch aufeinander haften in den Ablagebehälter stapelweise abgelegt werden können.It can be seen that the toner images on plastic films, for example PVC copier films, cannot yet be dry-wiped dry when fixed within the temperature range specified above. Another disadvantage is the electrostatic charging of the plastic films, as a result of which, in contrast to paper copies, they cannot be stacked on top of one another in a storage container, but rather adhere to one another. This can lead to backlogs in the interior of the copying machine, since the subsequent copying foils are prevented from exiting by the foils adhering to one another in the storage container, or the copying foils are pushed out of the dispensing container. The object of the invention is to improve an output device of a copying machine of the type described in the introduction so that the plastic films are dry, smudge-proof before being put down and without being able to adhere to one another electrostatically adhering to one another in the storage container.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß an der Außenseite des Kopiergeräts oberhalb des Ausgabespalts ein Tangentiallüfter angeordnet ist, dessen Luftstrom eine aus dem Ausgabespalt austretende PVC-Kopierfolie mit der Rückseite gegen ein Entladungselement andrückt.This object is achieved in that on the outside of the copier above the output is arranged a tangential fan, the air flow of which presses a PVC copy film emerging from the output gap with the back against a discharge element.

Die weitere Ausgestaltung der Erfindung ergibt sich aus den Merkmalen der Patentansprüche 1 bis 9.The further embodiment of the invention results from the features of claims 1 to 9.

Mit dem Entladungselement am Ausgabespalt wird erreicht, daß die elektrostatische Aufladung der Kopierfolien durch das geerdete Entladungselement, das mit seiner Oberkante an der aufgeladenen Rückseite der Kopierfolie entlangstreift, ausreichend erniedrigt wird, um eine ordnungsgemäße stapelweise Ablage der Kopierfolien in dem Ablagebehälter zu ermöglichen. Der Luftstrom des Lüfters führt sowohl eine vollständige Trocknung des Tonerbildes auf der PVC-Kopierfolie herbei als auch einen innigen Kontakt zwischen der Rückseite der PVC-Kopierfolie und dem Entladungselement, wodurch eine entsprechende Ableitung der elektrostatischen Ladungen von der Rückseite der PVC-Kopierfolie gegen Masse gewährleistet ist. Als weiterer Vorteil kommt noch hinzu, daß der Luftstrom des Lüfters die Folien nach unten hin durchdrückt, wodurch es zu einer Art Schnappbewegung der Folie nach unten in den Ablagebehälter kommt. Durch diese Schnappbewegung wird auch erreicht, daß eine Folie, die sich beispielsweise verklemmt hat und nicht richtig in den Ablagebehälter gelangt ist, aus dieser Klemmlage gelöst und ordnungsgemäß abgelegt wird.With the discharge element at the output gap it is achieved that the electrostatic charging of the copying films is sufficiently reduced by the grounded discharge element, which grazes along the upper edge of the charged back of the copying film, in order to enable proper stacking of the copying films in the storage container. The air flow of the fan brings about both a complete drying of the toner image on the PVC copy film and an intimate contact between the back of the PVC copy film and the discharge element, which ensures that the electrostatic charges are dissipated from the back of the PVC copy film to ground is. A further advantage is that the air flow from the fan pushes the foils downwards, resulting in a kind of snap movement of the foil downwards into the storage container. This snap movement also ensures that a film that has jammed, for example, and has not gotten properly into the storage container, is released from this clamping position and properly deposited.

Die Erfindung wird im folgenden anhand von zeichnerisch dargestellten Ausführungsbeispielen näher erläutert.The invention is explained in more detail below with reference to exemplary embodiments illustrated in the drawings.

Es zeigen:

  • Fig. 1 eine schematische Teilansicht eines Kopiergeräts mit der Ausgabeeinrichtung nach der Erfindung,
  • Fig. 2a ein Einzelteil der Ausgabeeinrichtung nach Fig. 1,
  • Fig. 2b eine andere Ausführungsform dieses Einzelteils nach Fig. 2a, und
  • Fig. 3 eine gegenüber Fig. 1 geringfügig abgewandelte Ausführungsform der Ausgabeeinrichtung.
Show it:
  • 1 is a schematic partial view of a copier with the output device according to the invention,
  • 2a shows an individual part of the output device according to FIG. 1,
  • Fig. 2b shows another embodiment of this item according to Fig. 2a, and
  • Fig. 3 shows a slightly modified embodiment of the output device compared to Fig. 1.

Von einem Kopiergerät 1 ist in Fig. 1 nur der Transportweg eines Bildempfangsmaterials, beispielsweise einer Kunststoff-Folie, im vorliegenden Fall einer PVC-Kopierfolie 16, dargestellt. Es ist offensichtlich, daß der Gegenstand der Erfindung nicht auf eine PVC- oder eine beschichtete Kopierfolie beschränkt ist, sondern für jede Kunststoff-Folie geeignet ist. Von einer nicht dargestellten Vorratskassette im Kopiergerät 1 gelangt eine Kopierfolie 16 an eine Selentrommel 9, von deren Oberfläche ein Tonerbild mittels einer übertragungscorona 24 auf die Kopierfolie 16 übertragen wird. Im Bereich der Umlenkwalze 10 wird die Kopierfolie 16 mittels einer nicht dargestellten Leitfeder oder eines Umlenkbandes, das teilweise am Umfang der Umlenkwalze 10 anliegt, von der Selentrommel 9 abgelöst und zu Transportwalzen 5 und 6 geführt. Diese Transportwalzen 5 und 6 fördern die Kopierfolie 16 durch eine Fixierstation, die aus einer Fixierandruckwalze 11 und einer darunter liegenden Heizplatte 26 aufgebaut ist. Unterhalb der Heizplatte 26 befindet sich ein Lüfter 25, der zum Trocknen des Tonerbildes auf der Kopierfolie 16 beiträgt. Die Kopierfolie gelangt über die Fixierstation zu Austragswalzen 12 und 13, die nahe der Gehäusewand des Kopiergeräts 1 vor einem Ausgabespalt 17 angeordnet sind. Oberhalb des Ausgabespalts 17 ist an der Innenseite der Gehäusewand des Kopiergeräts 1 eine Entladebürste 2 angebracht, welche zu der elektrostatischen Entladung der Vorderseite der Kopierfolie 16 beiträgt.Of a copying machine 1, only the transport path of an image-receiving material, for example a plastic film, in the present case a PVC copying film 16, is shown in FIG. 1. It is obvious that the subject matter of the invention is not restricted to a PVC or a coated copier film, but is suitable for any plastic film. From a storage cassette (not shown) in the copying machine 1, a copying film 16 reaches a selenium drum 9, from the surface of which a toner image is transferred to the copying film 16 by means of a transfer corona 24. In the area of the deflecting roller 10, the copying film 16 is included means of a guide spring, not shown, or a deflection belt, which partially abuts the circumference of the deflection roller 10, detached from the selenium drum 9 and guided to transport rollers 5 and 6. These transport rollers 5 and 6 convey the copying film 16 through a fixing station, which is composed of a fixing pressure roller 11 and a heating plate 26 underneath. Below the heating plate 26 there is a fan 25, which contributes to drying the toner image on the copying film 16. The copying film passes through the fixing station to discharge rollers 12 and 13, which are arranged near the housing wall of the copying machine 1 in front of an output nip 17. Above the discharge gap 17, a discharge brush 2 is attached to the inside of the housing wall of the copying machine 1, which contributes to the electrostatic discharge of the front side of the copying film 16.

Der Antrieb der Umlenkwalze 10, der Transportwalze 6, der Fixierandruckwalze 11 sowie der Austragwalze 12 erfolgt über eine Transportkette 27, die als Endloskette über die genannten Walzen, ein Umlenkrollenpaar 7, 8, einen Kettenspanner 3 sowie eine Kettenspanner-Umlenkrolle 14 zwischen der Umlenkwalze 10 und der Transportwalze 6 umläuft. Die Umlenkwalze 10 wird in nicht dargestellter Weise zusammen mit der Selentrommel 9 über ein Zahnrad angetrieben.The deflection roller 10, the transport roller 6, the fixing pressure roller 11 and the discharge roller 12 are driven via a transport chain 27, which is an endless chain via the aforementioned rollers, a deflection roller pair 7, 8, a chain tensioner 3 and a chain tensioner deflection roller 14 between the deflection roller 10 and the transport roller 6 rotates. The deflecting roller 10 is driven in a manner not shown together with the selenium drum 9 via a gear.

In Fig. l ist eine Kopierfolie 16 gezeigt, die mit ihrer Vorderkante gegen ein Entladungselement 18 anliegt, das an der Außenseite der Gehäusewand des Kopiergeräts 1 befestigt ist. Das Entladungselement 18 ist mit dem Massepunkt 19 verbunden und seine Oberkante liegt höher als eine Transportebene 23, die in Fig. 1 gestrichelt eingezeichnet ist und in welcher die Kopierfolie 16 durch den Ausgabespalt 17 bewegt wird. Das Entladungselement 18 besteht aus einem elastischen Material und dient als zusätzliches Führungselement für die aus dem Ausgabespalt 17 austretende Kopierfolie 16. Die Austragwalzen 12 und 13 schieben die Kopierfolie 16 vor, wodurch das Entladungselement 18 gekrümmt wird und mit seiner Oberkante unter Druck auf der Rückseite der Kopierfolie 16 anliegt, wie dies in Fig. 1 gestrichelt dargestellt ist.In Fig. L, a copy film 16 is shown, which lies with its front edge against a discharge element 18 which is on the outside of the housing wall of the Copier 1 is attached. The discharge element 18 is connected to the ground point 19 and its upper edge lies higher than a transport plane 23, which is shown in broken lines in FIG. 1 and in which the copying film 16 is moved through the output gap 17. The discharge element 18 consists of an elastic material and serves as an additional guide element for the copying film 16 emerging from the output nip 17. The discharge rollers 12 and 13 advance the copying film 16, as a result of which the discharge element 18 is curved and with its upper edge under pressure on the back of the Copy film 16 abuts, as shown in dashed lines in Fig. 1.

Oberhalb des Ausgabespalts 17 ist an der Außenseite des Kopiergeräts 1 ein Lüfter 20, beispielsweise ein Tangentiallüfter angeordnet, der so ausgerichtet ist, daß sein Luftstrom senkrecht auf die Vorderseite der Kopierfolie 16 auftrifft. Dieser Luftstrom drückt die Kopierfolie 16 gegen das Entladungselement 18 und sichert dadurch einen entsprechenden Kontakt zwischen der Rückseite der Kopierfolie 16 und dem Entladungselement 18. Über das Entladungselement 18 werden die auf der Rückseite der Kopierfolie 16 befindlichen elektrostatischen Ladungen gegen Masse abgeleitet. Zugleich bewirkt der Luftstrom des Tangentiallüfters 20, daß das Tonerbild auf der Kopierfolie 16 wischfest getrocknet wird.Above the discharge gap 17, a fan 20, for example a tangential fan, is arranged on the outside of the copying machine 1, which is oriented such that its air flow strikes the front of the copying film 16 perpendicularly. This air flow presses the copying film 16 against the discharge element 18 and thereby ensures a corresponding contact between the back of the copying film 16 and the discharge element 18. The electrostatic charges located on the back of the copying film 16 are dissipated to ground via the discharge element 18. At the same time, the air flow of the tangential fan 20 causes the toner image on the copying film 16 to be wiped dry.

Unterhalb des Entladungselements 18 ist ein Ausgabebehälter 15 angeordnet, dessen Auffangfläche derart gewinkelt ist, daß der kleinere Teil der Fläche horizontal und der größere Teil schräg nach oben gerichtet verläuft. Die elektrostatisch entladenen Kopierfolien bilden in dem Ausgabebehälter 15 einen Stapel 16'.There is an output beneath the discharge element 18 container 15 arranged, the collecting surface is angled such that the smaller part of the surface is horizontal and the larger part is directed obliquely upwards. The electrostatically discharged copier films form a stack 16 'in the output container 15.

Mit Unterstützung des Luftstroms des Lüfters 20 wird auch eine exakte Ablage der einzelnen Kopierfolien 16 in dem Ausgabebehälter 15 erzielt, selbst dann, wenn die oberste Kopierfolie des Stapels 16' beispielsweise nicht glatt auf den darunter befindlichen Kopierfolien aufliegt, sondern im unteren Teil gekrümmt ist und gegen das Entladungselement 18 anliegt. Sobald die nächste Kopierfolie 16 aus dem Ausgabespalt 17 austritt und dabei das Entladungselement 18 mit der dagegen anliegenden Kunststoff-Folie nach vorne schiebt, drückt der Luftstrom des Lüfters 20 diese gegen die gekrümmte oberste Kopierfolie des Stapels 16', wodurch im allgemeinen diese Folie eine Schnappbewegung nach unten ausführt und ausgerichtet mit den übrigen Kopierfolien des Stapels 16' auf diesem aufliegt.With the support of the air flow of the fan 20, an exact placement of the individual copier foils 16 in the output container 15 is also achieved, even if the top copier foil of the stack 16 'does not, for example, lie smoothly on the copy foils underneath, but is curved in the lower part and bears against the discharge element 18. As soon as the next copy film 16 emerges from the output gap 17 and thereby pushes the discharge element 18 with the plastic film lying against it forward, the air flow of the fan 20 presses it against the curved top copy film of the stack 16 ', which generally causes this film to snap executes downwards and is aligned with the other copying foils of the stack 16 '.

Wie in Fig. 2a schematisch dargestellt ist, weist das Entladungselement 18 beispielsweise die Gestalt eines Kammes auf, der aus einzelnen Abschnitten gebildet ist. Die Oberkanten 21 dieser Abschnitte verlaufen horizontal, so daß eine Linienberührung mit der Rückseite der Kopierfolie 16 gegeben ist. Als Material für das Entladungselement 18 wird beispielsweise eine mit Aluminium bedampfte Polyesterfolie verwendet, die eine Stärke bis zu 100 ,um besitzen kann, wobei eine Dicke von 75 um bevorzugt wird.As shown schematically in FIG. 2a, the discharge element 18 has the shape of a comb, for example, which is formed from individual sections. The upper edges 21 of these sections run horizontally, so that there is a line contact with the back of the copy film 16. As material for the discharge element 18, for example, an aluminum vapor-coated polyester film is used, which is up to to 100 µm, with a thickness of 75 µm being preferred.

In weiterer Ausgestaltung der Erfindung besteht das Entladungselement aus einer Bürste, die aus elastischen Metalldrähten 22 gebildet ist, wie dies in Fig. 2b dargestellt ist.In a further embodiment of the invention, the discharge element consists of a brush which is formed from elastic metal wires 22, as shown in FIG. 2b.

Eine andere Ausführungsform der Erfindung ist in Fig. 3 gezeigt und unterscheidet sich von der Ausführungsform nach Fig. 1 nur dadurch, daß der Lüfter 20 gegenüber der Transportebene 23 der Kopierfolie 16 geneigt ist. Diese Neigung ist einstellbar, so daß je nach Bedarf die optimale Strömungsrichtung des Luftstroms auf die Kopierfolie 16 eingestellt werden kann, um eine Ablage derselben in dem Ausgabebehälter ohne Verkanten der Kopierfolie zu erhalten.Another embodiment of the invention is shown in FIG. 3 and differs from the embodiment according to FIG. 1 only in that the fan 20 is inclined relative to the transport plane 23 of the copying film 16. This inclination is adjustable so that the optimum flow direction of the air flow onto the copying film 16 can be set as required in order to obtain a deposit thereof in the output container without tilting the copying film.

Claims (9)

1. Ausgabeeinrichtung eines Kopiergeräts für die stapelweise Ablage von PVC-Kopierfolien in einen Ablagebehälter, mit einem Lüfter, einer Ubertragungscorona und einer Entladungsbürste im Inneren des Kopiergeräts, dadurch gekennzeichnet, daß an der Außenseite des Kopiergeräts (1) oberhalb eines Ausgabespalts (17) ein Lüfter (20) angeordnet ist, dessen Luftstrom eine aus dem Ausgabespalt (17) austretende PVC-Kopierfolie (16) mit der Rückseite gegen ein Entladungselement (18)andrückt.1. Output device of a copier for the stacking of PVC copying films in a storage container, with a fan, a transfer corona and a discharge brush inside the copier, characterized in that on the outside of the copier (1) above an output gap (17) Fan (20) is arranged, the air flow of which presses a PVC copying film (16) emerging from the output gap (17) with the back against a discharge element (18). 2. Ausgabeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Entladungselement (18) elastisch federnd als zusätzliches Führungselement für die austretende PVC-Kopierfolie (16) ausgebildet ist.2. Output device according to claim 1, characterized in that the discharge element (18) is elastically resilient as an additional guide element for the emerging PVC copy film (16). 3. Ausgabeeinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Entladungselement (18) mit Masse (19) verbunden ist und an der Außenseite des Kopiergeräts (1) unterhalb des Ausgabespalts (17) befestigt ist.3. Output device according to claim 2, characterized in that the discharge element (18) is connected to ground (19) and is attached to the outside of the copying machine (1) below the output gap (17). 4. Ausgabeeinrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß das Material für das Ent- , ladungselement (18) eine mit Aluminium bedampfte Polyesterfolie, mit einer Stärke bis zu 100 /um ist.4. Output device according to claims 1 to 3, characterized in that the material for the discharge, charge element (18) is an aluminum-vapor-coated polyester film, with a thickness of up to 100 / um. 5. Ausgabeeinrichtung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die Oberkante des Entladungselements (18) höher als die Transportebene (23), die durch den Ausgabespalt (17) hindurchführt, liegt.5. Output device according to claims 1 to 4, characterized in that the upper edge of the discharge element (18) is higher than the transport plane (23) which passes through the output gap (17). 6. Ausgabeeinrichtung nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß das Entladungselement (18) die Gestalt eines Kammes aufweist, der aus einzelnen Abschnitten besteht, deren Oberkanten (21) horizontal verlaufen.6. Output device according to claims 1 to 5, characterized in that the discharge element (18) has the shape of a comb, which consists of individual sections, the upper edges (21) of which run horizontally. 7. Ausgabeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Luftstrom des Lüfters (20) senkrecht auf die Vorderseite der ein Tonerbild tragenden PVC-Kopierfolie (16) gerichtet ist.7. Output device according to claim 1, characterized in that the air flow of the fan (20) is directed perpendicularly to the front of the PVC copy film (16) carrying a toner image. 8. Ausgabeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Luftstrom des Lüfters (20) gegenüber der Transportebene (23) der PVC-Kopierfolie (16) geneigt ist.8. Output device according to claim 1, characterized in that the air flow of the fan (20) with respect to the transport plane (23) of the PVC copy film (16) is inclined. 9. Ausgabeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Entladungselement als Bürste (22) ausgebildet ist, die aus elastischen Metalldrähten besteht..9. Output device according to claim 1, characterized in that the discharge element is designed as a brush (22) which consists of elastic metal wires ..
EP80105018A 1979-09-03 1980-08-23 Sheet delivery device in a copier Expired EP0024712B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2935491 1979-09-03
DE19792935491 DE2935491A1 (en) 1979-09-03 1979-09-03 OUTPUT DEVICE FOR A COPIER

Publications (2)

Publication Number Publication Date
EP0024712A1 true EP0024712A1 (en) 1981-03-11
EP0024712B1 EP0024712B1 (en) 1983-05-04

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ID=6079903

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EP80105018A Expired EP0024712B1 (en) 1979-09-03 1980-08-23 Sheet delivery device in a copier

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EP (1) EP0024712B1 (en)
JP (1) JPS5636667A (en)
DE (2) DE2935491A1 (en)
ES (1) ES8104580A1 (en)

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US4501418A (en) * 1981-02-24 1985-02-26 Tokyo Shibaura Denki Kabushiki Kaisha Stacking device for paper sheets
US4660824A (en) * 1984-09-27 1987-04-28 Oce-Nederland B.V. Device for collating sheets
GB2288165A (en) * 1994-04-07 1995-10-11 Fujitsu Ltd Stacking sheets
EP1004530A2 (en) * 1998-11-27 2000-05-31 Canon Kabushiki Kaisha Sheet treating apparatus and image forming apparatus having the same

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JPS61295138A (en) * 1985-06-24 1986-12-25 Tokyo Met Gov Rigid electric-car line
JP2593679B2 (en) * 1987-04-10 1997-03-26 三菱電機株式会社 Discharge lamp lighting device
JPS6438762A (en) * 1987-08-04 1989-02-09 Ricoh Kk Recorder
JP2699400B2 (en) * 1988-04-22 1998-01-19 日立工機株式会社 Paper cooling device for electrophotographic printer
JP2013032213A (en) * 2011-08-03 2013-02-14 Konica Minolta Business Technologies Inc Image forming apparatus
JP7155558B2 (en) * 2018-03-22 2022-10-19 富士フイルムビジネスイノベーション株式会社 Static eliminator and charged medium processing device using the same

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GB1083717A (en) * 1963-10-04 1967-09-20 Itek Corp Improvements in or relating to apparatus for and method of sheet delivery
US3529360A (en) * 1968-11-04 1970-09-22 Olivetti & Co Spa Reprographic output feed system
DE2166973A1 (en) * 1970-03-10 1977-02-17 Canon Kk DEVICE FOR CLEANING THE RECORDING MATERIAL OF AN ELECTROPHOTOGRAPHIC DEVICE
DE2111509B2 (en) * 1970-03-10 1977-08-04 Canon K.K, Tokio DEVICE FOR CLEANING THE RECORDING DRUM OF AN ELECTROPHOTOGRAPHIC DEVICE
FR2213519A1 (en) * 1972-11-24 1974-08-02 Xerox Corp
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Publication number Priority date Publication date Assignee Title
US4501418A (en) * 1981-02-24 1985-02-26 Tokyo Shibaura Denki Kabushiki Kaisha Stacking device for paper sheets
US4660824A (en) * 1984-09-27 1987-04-28 Oce-Nederland B.V. Device for collating sheets
GB2288165A (en) * 1994-04-07 1995-10-11 Fujitsu Ltd Stacking sheets
GB2288165B (en) * 1994-04-07 1998-02-18 Fujitsu Ltd Paper stacking apparatus
US5743518A (en) * 1994-04-07 1998-04-28 Fujitsu Limited Paper stacking apparatus for image reading apparatus and image reading apparatus with paper stacking apparatus
EP1004530A2 (en) * 1998-11-27 2000-05-31 Canon Kabushiki Kaisha Sheet treating apparatus and image forming apparatus having the same
EP1004530A3 (en) * 1998-11-27 2001-08-22 Canon Kabushiki Kaisha Sheet treating apparatus and image forming apparatus having the same
US6505829B2 (en) 1998-11-27 2003-01-14 Canon Kabushiki Kaisha Sheet treating apparatus and image forming apparatus having the same
EP1447365A2 (en) * 1998-11-27 2004-08-18 Canon Kabushiki Kaisha Sheet treating apparatus and image forming apparatus having the same
EP1447365A3 (en) * 1998-11-27 2004-09-29 Canon Kabushiki Kaisha Sheet treating apparatus and image forming apparatus having the same

Also Published As

Publication number Publication date
DE3062968D1 (en) 1983-06-09
DE2935491A1 (en) 1981-03-19
ES494414A0 (en) 1981-03-16
JPS5636667A (en) 1981-04-09
ES8104580A1 (en) 1981-03-16
EP0024712B1 (en) 1983-05-04

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