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EP0699315B1 - Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs - Google Patents

Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs Download PDF

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Publication number
EP0699315B1
EP0699315B1 EP94917603A EP94917603A EP0699315B1 EP 0699315 B1 EP0699315 B1 EP 0699315B1 EP 94917603 A EP94917603 A EP 94917603A EP 94917603 A EP94917603 A EP 94917603A EP 0699315 B1 EP0699315 B1 EP 0699315B1
Authority
EP
European Patent Office
Prior art keywords
station
recording medium
printing
transfer printing
fixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94917603A
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German (de)
English (en)
Other versions
EP0699315A1 (fr
Inventor
Hans Manzer
Manfred Viechter
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.)
Canon Production Printing Germany GmbH and Co KG
Original Assignee
Wincor Nixdorf International GmbH
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
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Application filed by Wincor Nixdorf International GmbH filed Critical Wincor Nixdorf International GmbH
Priority to EP94917603A priority Critical patent/EP0699315B1/fr
Publication of EP0699315A1 publication Critical patent/EP0699315A1/fr
Application granted granted Critical
Publication of EP0699315B1 publication Critical patent/EP0699315B1/fr
Anticipated expiration legal-status Critical
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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
    • G03G15/6517—Apparatus for continuous web copy material of plain paper, e.g. supply rolls; Roll holders therefor
    • G03G15/6526—Computer form folded [CFF] continuous web, e.g. having sprocket holes or perforations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/18—Multiple web-feeding apparatus
    • B41J15/22—Multiple web-feeding apparatus for feeding webs in separate paths during printing
    • 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/23—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 specially adapted for copying both sides of an original or for copying on both sides of a recording or image-receiving material
    • G03G15/231—Arrangements for copying on both sides of a recording or image-receiving material
    • G03G15/232—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member
    • G03G15/234—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters
    • G03G15/237—Arrangements for copying on both sides of a recording or image-receiving material using a single reusable electrographic recording member by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters the image receiving member being in form of a continuous web
    • 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
    • G03G2215/00447—Plural types handled
    • 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
    • G03G2215/00451—Paper
    • G03G2215/00455—Continuous web, i.e. roll
    • G03G2215/00459—Fan fold, e.g. CFF, normally perforated
    • 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
    • G03G2215/00919—Special copy medium handling apparatus
    • G03G2215/00924—Special copy medium handling apparatus two or more parallel feed paths
    • 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
    • G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
    • G03G2215/0167—Apparatus for electrophotographic processes for producing multicoloured copies single electrographic recording member
    • G03G2215/017—Apparatus for electrophotographic processes for producing multicoloured copies single electrographic recording member single rotation of recording member to produce multicoloured copy
    • 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
    • G03G2215/01—Apparatus for electrophotographic processes for producing multicoloured copies
    • G03G2215/0167—Apparatus for electrophotographic processes for producing multicoloured copies single electrographic recording member
    • G03G2215/0174—Apparatus for electrophotographic processes for producing multicoloured copies single electrographic recording member plural rotations of recording member to produce multicoloured copy

Definitions

  • the invention relates to an electrographic printing device for printing on tape-shaped recording media of different bandwidth with a possible return of the recording media from the fixing station to the transfer printing station for producing duplex and color printing.
  • EP-B1-01 54 695 To produce multicolor and reverse side printing with continuous-paper electrographic printing devices, it is known from EP-B1-01 54 695 to operate two continuous paper printers in succession, the paper printed in the first printer being turned over and subsequently printed in the second printer on the second side .
  • an electrophotographic printing device for printing on tape-shaped recording media is known, with which it is possible to print on both sides of the recording media.
  • the recording medium is pulled off a stack of supplies, fed to a transfer printing station and provided with toner images on one side. After fixing, the recording medium is turned over and fed back to the transfer printing station. After the back of the recording medium has been printed with toner images, it is fixed again in the fixing station.
  • a toner image is first applied to a front side of the recording medium and then the recording medium together with the toner image is turned over and, at the same time or immediately before turning, the toner image is fixed by a first fixing device attached in the area of the turning device. Then, with the help of the transfer printing station, a rear-side toner image is applied, which in turn is then fixed with the aid of a further fixing device attached on the output side to the printing device.
  • a front-side toner image is first applied using the transfer printing station. Then the The recording medium is turned over and the rear toner image is applied. Both toner images are fixed at the same time via a fixing station on the output side.
  • a third method for producing simplex printing on a narrow or double-width recording medium the application of the single toner image takes place with an appropriately width-adapted transfer printing station, the toner image then being fixed via an output-side, width-adapted fixing station.
  • electrographic printing devices are used for operation with tape-shaped recording media when a high printing speed in connection with high printing quality is required.
  • high print volumes such as e.g.
  • multi-color printing is usually expensive and reduces printing speed.
  • the object of the invention is to provide an electrographic printing device for printing on tape-shaped recording media in changing operating modes with one and the same device, which is of flexible construction and which enables the user himself to adapt to a wide variety of user requirements in a simple manner. This object is achieved in an electrographic printing device of the type mentioned at the outset according to the features of the first claim.
  • the electrographic printing device has a usable width of at least twice the bandwidth of a narrow record carrier.
  • a deflection device for the narrow recording medium downstream of the fixing station is designed to be adjustable, depending on the operating state of the printing device.
  • the recording medium is guided to the fixing station via the transfer printing station and from there again to the transfer printing station and the fixing station via the deflection device.
  • the recording medium is guided solely via the transfer printing station to the fixing station.
  • the intermediate carrier has developer stations with developer zones which can be colored separately.
  • the printing device uses a single fixing station designed according to the maximum recording medium width. It is used for all record carrier widths and for all operating modes. An adaptation to the different operating modes is done by simply switching on and off, e.g. B. the deflection device.
  • a transport device assigned to the transfer printing station and engaging in peripheral perforations of the record carrier is designed to be adjustable depending on the operating state of the printing device.
  • the transport device can also be designed for the transport of transport-hole-free recording media.
  • the electrographic printing device enables the printing of wide recording media in the same device with one and the same device, without increasing the expenditure on equipment in comparison with conventional machines Landscape and landscape format, the printing of narrower record carriers in duplex mode, ie with front and back side printing in both single and multi-color, the multi-color one-sided printing and the printing of several record carriers in parallel operation.
  • the device dimension, the manufacturing costs as well as the operational safety and the reliability correspond to the essential functional expansion of known printing machines, which satisfies a need that has existed for many years for a flexible electrographic printing device.
  • An electrographic printing device for printing on tape-shaped recording media 10 of different bandwidth contains an electromotive-driven photoconductor drum as intermediate media 11.
  • a band-shaped intermediate carrier e.g. use an OPC tape or a magneto-styli arrangement, e.g. is described in EP-B1-0 191 521.
  • the various units for the electrophotographic process are grouped around the intermediate carrier 11.
  • a charging device 12 in the form of a charging corotron for charging the intermediate carrier 11; a character generator 13 with a light-emitting diode comb for character-dependent exposure of the intermediate carrier 11, which extends over the entire usable width of the intermediate carrier 11; a developer station 14 for coloring the character-dependent charge image on the intermediate carrier 11 with the aid of a one- or two-component developer mixture; a transfer printing station 15, which extends over the width of the intermediate carrier 11 and with which the toner images are transferred to the recording medium 10.
  • a cleaning station 16 is provided, with a cleaning brush integrated therein with the associated suction device and a discharge device 17.
  • the intermediate carrier 11 is driven by an electric motor and moved in the direction of the arrow in printing operation.
  • the printing device contains a fixing station 18 which is arranged downstream of the transfer printing station 15 in the transport direction of the recording medium and which is designed as a thermal printing fixing station, with a heated fixing roller 19 with associated pressure roller 20, and guide rollers 21 arranged downstream of the fixing station, which, among other things, serve as output elements for a stacking device 22 for the Record carriers 10 serve.
  • a fixing station 18 which is arranged downstream of the transfer printing station 15 in the transport direction of the recording medium and which is designed as a thermal printing fixing station, with a heated fixing roller 19 with associated pressure roller 20, and guide rollers 21 arranged downstream of the fixing station, which, among other things, serve as output elements for a stacking device 22 for the Record carriers 10 serve.
  • the fixing station shown other fixing stations are also possible, for example with a heated or unheated inlet saddle or a cold fixing station.
  • the tape-shaped recording medium 10 is For example, it is made up as pre-folded continuous paper with edge perforations and is fed from a storage area 23 to the transfer station via feed
  • the transport of the record carrier is preferably carried out via a transport device 25 assigned to the transfer printing station 15 in the form of conveyor belts provided with pins which, guided by drive shafts 27, engage in the perforations on the edge of the record carrier 10.
  • a transport-hole-free recording medium an adapted transport device familiar to the person skilled in the art is to be provided which e.g. transported by friction, controlled by a control arrangement scanning synchronization marks.
  • a deflection device 28 is arranged in the housing area of the printing device between the storage area 23 and the fixing station 8, the function of which will be explained later and via which the recording medium is returned from the fixing station 18 to the transfer printing station 15.
  • the printing device is controlled via a printer controller, which is shown schematically here, with a central unit CPU, a page memory SP, which is divided into memory areas depending on the page, and a data control unit DC. All control units are connected to each other and to the units of the printing device via a BUS system.
  • the electrographic printing device is suitable for printing on recording media with different bandwidths.
  • the intermediate carrier 11 (photoconductor drum) has a usable width which corresponds to the largest possible recording medium width (for example a format DIN A3 landscape). This width corresponds to twice the A4 bandwidth. It is thus possible to arrange two A4 recording medium widths alongside one another in the area of the transfer printing station 15.
  • the fixing station 18 and the other electrophotographic units, such as developer station 14, character generator 13, cleaning station 16, are designed in accordance with this usable width.
  • Adapting the width of the character generator 13 to different recording medium widths does not require any mechanical change to the character generator if, as in this case, an LED character generator is used with a large number of LEDs arranged in rows.
  • An adaptation to the recording medium width used is carried out electronically by control.
  • the transport device can be designed to be width-adjustable. This can e.g. can be achieved in that the drive wheels, which carry the conveyor belts (nubbed belts) engaging in the perforations on the edge of the record carrier, are displaceably mounted on polygonal shafts.
  • these transport elements do not interfere with operation with only one wide recording medium, they can be arranged such that they can be plugged in and plugged in or swiveled out, or it is possible to provide the drive wheels 27 of the transport device 25 with retractable pins and knobs.
  • the deflecting device 28 arranged in a return channel for narrow recording media from the fixing station to the transfer printing station has two functions: it is used in continuous operation (FIG. 6) for laterally displacing the recording media web and in turning mode (FIG. 7) for rotating the recording media from the front to the rear. It is designed to be switchable depending on the operating mode.
  • Three deflection elements 29/1, 29/2 and 29/3 designed as rollers or deflecting rods with a smooth, wear-resistant surface serve to vertically deflect the recording medium.
  • the function of the deflecting element 29/2 can be carried out by the feed rollers 24.
  • the deflection device contains a deflection contour consisting of two deflection rods 30/1 and 30/2, which in the exemplary embodiment shown are arranged inclined at 45 ° to the transport direction of the recording medium.
  • the second deflecting rod 30/2 seen in the transport direction of the recording medium, is arranged such that it can be swiveled by a mechanism (not shown here), namely from a position parallel to the first deflecting rod 30/1 into a position perpendicular to it.
  • the deflecting rods 30/1 and 30/2 must not be designed as rotating rollers, since the recording medium would run away to the side in the rolling motion. They are designed as a standing roller or as a corresponding molded part.
  • the horizontal deflecting elements 29/1 to 29/3 can be designed as rotatable rollers or, according to the deflecting contour, as fixed deflecting rods, optionally with air outlet openings.
  • the recording medium returned from the fixing station 18 is first deflected downward over the deflecting roller 29/1 and then guided around the deflecting rod 30/1 in the direction of the arrow and thus deflected horizontally. Then there is another deflection around the deflecting rod 30/2 in the vertical direction downwards. After redirection by the horizontal deflection roller 29/3, the offset recording medium is fed to the deflection element 29/2 or the feed rollers 24.
  • the recording medium is turned through 180 ° in the manner shown.
  • the recording medium is first deflected downward via the horizontal deflection roller 29/1, guided from front to back around the first oblique deflection rod 30/1 and thus deflected horizontally. This is followed by another deflection around the second inclined deflecting rod 30/2 with subsequent feeding to the horizontal deflecting element 29/2 or the feed rollers 24.
  • the printing device enables a wide variety of operating modes without changing the hardware structure.
  • the recording medium is guided in a conventional manner from the storage area 23 (storage stack) via the feed rollers 24 to the transfer station 15, there provided with toner images and fixed in the fixing station 18 and then in the stacking device 22 filed.
  • the transport takes place via the transport device 25 which engages in the perforations on the edge of the record carrier, the width of the transport device 25 being set in accordance with the width of the record carrier.
  • Such a wide recording medium enables e.g. printing with DIN A3 horizontally arranged toner images or with two adjacent A4 A4 toner images.
  • the two recording media webs 10/1, 10/2 are guided parallel through the printing device, as shown in FIG.
  • the transport of the recording medium webs 10/1 and 10/2 takes place via the correspondingly set transport device 25.
  • the recording medium webs 10/1 and 10/2 are transported on both sides via their perforations at the edges.
  • the middle transport elements can be brought into engagement with the inner edge perforations of the recording medium webs 10/1 and 10/2 by extending corresponding pins. It is also possible to design these inner transport elements as elements that can be fitted as required. In principle, it is also possible to use only the outer transport elements for transporting the recording medium webs 10/1 and 10/2 in the area of the transfer printing station and thus to transport the recording medium webs on one side.
  • the narrow e.g. A4-wide recording media starting from the storage area 23, are fed via the feed rollers 24 to the transfer printing station 15 and printed on their upper side with a front-side toner image.
  • the front of the record carrier 10 is identified by solid transport arrows, the underside by dashed transport arrows.
  • the recording medium with the front-side toner image is then fed to the fixing station 18 and the front-side toner image is fixed.
  • the recording medium is transported further to the deflection device 28, the deflection contour of which is positioned in a turning position.
  • the record carrier is turned with respect to its front and back and is fed again via the feed rollers 24 to the transfer printing device 15 such that its back can be provided with a back toner image.
  • the recording medium is then fed again to the fixing station 18 and the rear-side toner image is fixed and then the recording medium printed on both sides is deposited in the stacking device 22.
  • the page memory SP contains storage areas VS for storing the front side image data and storage areas RS for storing the back side image data.
  • the data preparation takes place via the data control device DC, the data being supplied from a data source (HOST), for example an external data memory, via an interface of the data control device DC.
  • HOST data source
  • the data of the individual pages to be printed are stored in the page memory SP, separately to the front VS and back RS in the corresponding memory areas.
  • the data is then called up in a time-controlled manner so that the desired front-back assignment of the toner images on the recording medium is achieved.
  • the printing device is also suitable for multi-color printing.
  • the developer station 14 can be designed in such a way that it generates developer zones E1 and E2 which can be colored separately on the intermediate carrier 11.
  • a corresponding developer zone E1 or E2 on the intermediate carrier 11 is assigned to each position area of the narrow recording medium as it passes through the transfer printing station 15.
  • two developer stations 14/1 and 14/2 arranged one behind the other can be assigned to the developer zones.
  • the developer station 14/1 contains a toner mixture of a first color, e.g. red and the developer station 14/2 a developer mixture in a second color, e.g. black.
  • the developer stations 14/1 and 14/2 are designed so that they can be activated separately with respect to the developer zones E1 and E2, either by mechanical flaps or the like or by electrical control of the developer rollers.
  • Each of the developer stations 14/1 and 14/2 can extend over the entire width of the intermediate carrier 11, but it must be ensured that they can be controlled separately with respect to the developer zones E1 and E2.
  • the recording medium is guided through the printing device in the same way as in FIG.
  • a front image is applied in a first color, for example red, via the developer station 14/1 in the developer zone E2.
  • a rear toner image in a second color is applied via the developer station 14/2 in the developer zone E1.
  • the control of the toner image order takes place in accordance with the exemplary embodiment of FIG. 1 via the printer control, the image data for the front toner image of color 1 (red) being stored in the memory area VF1 of the page memory SP and in the storage area RF2, the image data for the back toner image of color 2 (black).
  • the separate developer stations 14/1, 14/2 can also be used for double-sided monochrome printing of the recording medium in duplex mode in accordance with FIG. 1. In this case, depending on the desired color, only one of the developer stations 14/1 or 14/2 is activated.
  • the printing device can print two colors on a narrow recording medium, for example A4 in width, on one side.
  • the developer station can be constructed in the manner described in connection with FIG. 1.
  • Each recording medium position on the transfer printing station is assigned a developer zone E1, E2 which can be colored separately.
  • a toner image is printed over the developer zone E2 in a first color, e.g. red.
  • the toner image of this first color is then fixed in the fixing station 18 and the recording medium is fed again without turning the transfer printing station 15 with the associated developer zone E1.
  • the deflection device 28 is in an operating state as shown in FIG. 6, i.e.
  • the control of the toner image order takes place, as in the exemplary embodiments in FIGS. 1 and 2, via the printer control.
  • the memory area VF1 of the page memory SP contains the image data of a front side image of color 1 (red) and the memory area VF2 of the page memory SP contains the image data of a front side color image of color 2 (black).
  • the image data are called up and the developer station 14 is controlled in the manner described via the data control device DC.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Counters In Electrophotography And Two-Sided Copying (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Color Electrophotography (AREA)

Abstract

Un dispositif d'impression électrographique sert à imprimer des supports d'enregistrement (10) sous forme de bandes de différentes largeurs selon des modes divers d'impression, tels que l'impression sur une et deux faces en une et plusieurs couleurs et l'impression simultanée de deux bandes en parallèle. A cet effet, les unités du dispositif d'impression, tels que le support intermédiaire (11), le poste de duplication (15) et le poste de fixation (18) ont une largeur utile au moins deux fois supérieure à la largeur d'un support étroit d'enregistrement. Le dispositif d'impression comprend en outre un dispositif déflecteur (28) qui le cas échéant peut être commuté et qui est situé en aval du poste de fixation (18). Une voie de retour associée au dispositif déflecteur (28) fait tourner le support d'enregistrement (10) et le ramène au poste de duplication (15) lors de l'impression duplex en une ou plusieurs couleurs.

Claims (8)

  1. Dispositif d'impression électrographique de supports d'enregistrement (10) sous forme de bandes de différentes largeurs, comportant
    - un support intermédiaire (11) avec des groupes associés, tels que dispositif générateur d'image (13), station de développement (14), station de charge (12), station de nettoyage (16), pour générer des images de toner sur le support intermédiaire (11) qui présente une largeur utile d'au moins deux fois la largeur de bande d'un support d'enregistrement étroit ;
    - une station de transfert (15) affectée au support intermédiaire (11), recevant les supports d'enregistrement, qui présente une largeur utile d'au moins deux fois la largeur de bande du support d'enregistrement étroit ;
    - un dispositif d'entraînement (25) qui entraîne les supports d'enregistrement (10) au niveau de la station de transfert (15), et qui est conçu de manière réglable en fonction du mode d'exploitation, en particulier de la largeur de bande et du nombre des bandes de support d'enregistrement guidées au niveau de la station de transfert (15) ;
    - une seule station de fixation (18) placée en aval de la station de transfert (15) dans le sens de transport du support d'enregistrement, pour fixer les images de toner sur le support d'enregistrement, qui présente une largeur utile d'au moins deux fois la largeur de bande du support d'enregistrement étroit, et
    - un dispositif de renvoi (28) avec un canal de retour associé menant à la station de transfert (15), pour le support d'enregistrement étroit, placé en aval de la station de fixation (18) et pouvant être connecté en fonction du mode d'exploitation,
    - dans un premier mode d'exploitation du dispositif d'impression pour imprimer plusieurs fois le seul support d'enregistrement (10) étroit, le support d'enregistrement (10) étant cheminé à partir d'une zone d'alimentation (23), via la station de transfert (15), à une zone utile de la station de fixation (18) et de là, via le dispositif de renvoi (28), de nouveau à la station de transfert (15) et à une zone utile contiguë à la zone utile de la même station de fixation (18), et
    - dans un deuxième mode d'exploitation du dispositif d'impression pour imprimer un côté d'un ou de plusieurs supports d'enregistrement (10, 10/1, 10/2) de largeur de bande différente, le ou les supports d'enregistrement (10, 10/1, 10/2) étant cheminés à partir d'une zone d'alimentation, uniquement via la station de transfert (15), à la seule station de fixation (18).
  2. Dispositif d'impression électrographique selon la revendication 1, avec un dispositif de renvoi (28) conçu sous forme de dispositif d'inversion (30/1, 30/2) de sorte que le seul support d'enregistrement étroit est amené à la station de transfert (15) avec sa face inversée par rapport à sa position d'amenée initiale.
  3. Dispositif d'impression électrographique selon la revendication 1, avec un dispositif de renvoi (28) conçu de telle sorte que dans un premier mode d'exploitation, le dispositif de renvoi amène le seul support d'enregistrement étroit à la station de transfert (15) avec sa face inversée par rapport à sa position d'amenée initiale et que dans un deuxième mode d'exploitation, le dispositif de renvoi (28) amène le seul support d'enregistrement étroit à la station de transfert (15) dans sa position d'amenée initiale.
  4. Dispositif d'impression électrographique selon l'une des revendications 1 à 3, avec une ou plusieurs stations de développement (14/1, 14/2) générant des zones de développement (E1, E2) pouvant être mises en couleurs séparément sur le support intermédiaire, au moins à chaque zone de positionnement des supports d'enregistrement étroits lors du passage à travers la station de transfert (15) étant affectée une zone de développement (E1, E2) correspondante sur le support intermédiaire (11).
  5. Dispositif d'impression électrographique selon l'une des revendications 1 à 4, avec un dispositif d'entraînement (25) affecté à la station de transfert (15), s'introduisant dans des perforations marginales du support d'enregistrement (10), qui est conçu de manière réglable en fonction du mode d'exploitation du dispositif d'impression.
  6. Dispositif d'impression électrographique selon l'une des revendications 1 à 5, avec comme dispositif générateur d'image un générateur de caractères DEL (13) s'étendant au moins sur la largeur utile du support intermédiaire (11).
  7. Procédé d'impression recto-verso polychrome d'un support d'enregistrement sous forme de bande au moyen d'un dispositif d'impression électrographique selon l'une des revendications 1 à 6, comportant les étapes suivantes :
    - application d'une première série d'images de toner d'une première couleur sur le recto du support d'enregistrement (10) lors d'un premier passage à travers la station de transfert (15),
    - fixation de la première série d'images de toner dans la station de fixation (18),
    - inversion du support d'enregistrement du recto au verso dans le dispositif de renvoi (28) et réacheminement du support d'enregistrement à la station de transfert (15),
    - application d'une deuxième série d'images de toner d'une deuxième couleur sur le verso du support d'enregistrement (10),
    - fixation de la deuxième série d'images de toner dans la station de fixation (18).
  8. Procédé d'impression polychrome d'un support d'enregistrement (10) sous forme de bande au moyen d'un dispositif d'impression électrographique selon l'une des revendications 1 à 6, comportant les étapes suivantes :
    - application d'une première série d'images de toner d'une première couleur sur le recto du support d'enregistrement (10) lors d'un premier passage à travers la station de transfert (15),
    - fixation de la première série d'images- de toner dans la station de fixation (18),
    - réacheminement du support d'enregistrement à la station de transfert (15),
    - application d'une deuxième série d'images de toner d'une deuxième couleur sur le recto du support d'enregistrement (10),
    - fixation de la deuxième série d'images de toner dans la station de fixation (18).
EP94917603A 1993-05-19 1994-05-09 Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs Expired - Lifetime EP0699315B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94917603A EP0699315B1 (fr) 1993-05-19 1994-05-09 Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP93108219 1993-05-19
EP93108219 1993-05-19
EP94917603A EP0699315B1 (fr) 1993-05-19 1994-05-09 Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs
PCT/EP1994/001493 WO1994027193A1 (fr) 1993-05-19 1994-05-09 Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs

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EP0699315A1 EP0699315A1 (fr) 1996-03-06
EP0699315B1 true EP0699315B1 (fr) 1996-10-30

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EP94917603A Expired - Lifetime EP0699315B1 (fr) 1993-05-19 1994-05-09 Dispositif d'impression electrographique de supports d'enregistrement sous forme de bandes de differentes largeurs

Country Status (5)

Country Link
US (3) US5546178A (fr)
EP (1) EP0699315B1 (fr)
JP (1) JPH08510339A (fr)
DE (1) DE59400956D1 (fr)
WO (1) WO1994027193A1 (fr)

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US6317580B1 (en) 1999-10-29 2001-11-13 OCé PRINTING SYSTEMS GMBH Printing system for parallel printing with offset printing sides on two recording media
DE102010016856A1 (de) 2010-05-10 2011-11-10 OCé PRINTING SYSTEMS GMBH Druckeinrichtung zum beidseitigen Bedrucken eines bandförmigen Bedruckstoffs

Also Published As

Publication number Publication date
EP0699315A1 (fr) 1996-03-06
US5546178A (en) 1996-08-13
USRE37511E1 (en) 2002-01-15
WO1994027193A1 (fr) 1994-11-24
US5659875A (en) 1997-08-19
JPH08510339A (ja) 1996-10-29
DE59400956D1 (de) 1996-12-05

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