EP1882211A1 - Dispositif et procede pour imprimer un support d'enregistrement des deux cotes, avec un dispositif de changement de charge et un dispositif d'application de nouvelle charge - Google Patents

Dispositif et procede pour imprimer un support d'enregistrement des deux cotes, avec un dispositif de changement de charge et un dispositif d'application de nouvelle charge

Info

Publication number
EP1882211A1
EP1882211A1 EP06725285A EP06725285A EP1882211A1 EP 1882211 A1 EP1882211 A1 EP 1882211A1 EP 06725285 A EP06725285 A EP 06725285A EP 06725285 A EP06725285 A EP 06725285A EP 1882211 A1 EP1882211 A1 EP 1882211A1
Authority
EP
European Patent Office
Prior art keywords
toner image
transfer
polarity
corotron
image carrier
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Withdrawn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
EP06725285A
Other languages
German (de)
English (en)
Inventor
Alexander Kreiter
Stefan Scherdel
Karl Zappe
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
OC Printing Systems GmbH
Original Assignee
Oce Printing Systems GmbH and Co KG
OC Printing Systems 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
Application filed by Oce Printing Systems GmbH and Co KG, OC Printing Systems GmbH filed Critical Oce Printing Systems GmbH and Co KG
Publication of EP1882211A1 publication Critical patent/EP1882211A1/fr
Withdrawn legal-status Critical Current

Links

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
    • G03G15/22—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
    • G03G15/238—Arrangements for copying on both sides of a recording or image-receiving material using more than one reusable electrographic recording member, e.g. single pass duplex copiers
    • 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
    • G03G2215/00016—Special arrangement of entire apparatus
    • 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
    • G03G2215/00172—Apparatus for electrophotographic processes relative to the original handling
    • G03G2215/00206—Original medium
    • G03G2215/00219—Paper
    • G03G2215/00223—Continuous web, i.e. roll

Definitions

  • the present invention relates to an apparatus for simultaneous two-sided printing of a recording medium, comprising a circulating first toner image carrier and a circulating second toner image carrier, comprising means for producing a first toner image consisting of toner, which is charged with a first polarity, on the first toner image carrier Means for forming a second toner image consisting of toner, also charged with the first polarity, on the second toner image carrier, with a transfer device adapted to reload the first toner image on the first toner image carrier to a second polarity, that of the first Polarity is opposite, and with a first Umdrucksmaschine where the recording medium between the first toner image carrier and the second toner image carrier is passed, and on which an electric field can be generated, through which the second to the polarity reversed first To nersent and the second toner image are detached from the first and second toner image carrier and transferred to the respective toner image carrier side facing the recording medium.
  • the invention further relates to a printer or copier with such a device and a method for simultaneous double-sided printing of a recording medium.
  • a device of the aforementioned type is known for example from WO 98/39691 and the parallel US 6,246,856 Bl.
  • the recording medium is formed by a paper web and the first toner image carrier and the second toner image carrier are formed by transfer belts which are essentially mirror-like. are arranged symmetrically to the paper web above and below it.
  • the means for generating the first and the second toner image are formed by transfer printing between an associated photoconductor belt and the respective transfer belt.
  • the known device can be operated in two different modes of operation, a multi-color print collection mode and a continuous print mode.
  • multicolor printing collection mode toner images in primary colors or component colors, so-called color separations, are successively produced on the photoconductors in an electrophotographic process and successively transferred to the respective transfer belt.
  • the individual color components are "collected", ie superimposed in register, so that a first colored toner image results on the first transfer belt and a second colored toner image on the second transfer belt Paper web swung, and the first and the second toner image are printed on the top or bottom of the paper web.
  • the first and the second toner image carrier need not be formed by an intermediate carrier, but may for example be formed by photoconductor, in particular photoconductor belts, from which is directly transferred to a recording medium.
  • photoconductor in particular photoconductor belts
  • toner image carrier is to be understood as meaning.
  • the toner of the first toner image and the toner of the second toner image are first charged with the same, first polarity.
  • This charge of the first polarity requires the toner for the electrophotographic process. It is typically generated by triboelectric charging in a developer station.
  • one of the toner images in the present case the first toner image, has to be reloaded.
  • both toner images in an appropriate, provided in the Umtik Anlagen electric field, an electrical force of attraction in the direction of the recording medium, by which they are reprinted on this.
  • the printing result is not always satisfactory.
  • a different transfer efficiency often results between the first toner image carrier and the one side of the recording medium on the one hand and the second toner image carrier and the other side of the recording medium on the other hand.
  • the resulting print images then differ in their visual appearance from each other.
  • it can lead to a mutual influence of the two print images. For example, if on one side of the If a solid pattern is printed on a recording medium and isolated characters are printed on the other side, it may happen that the isolated characters in the areal pattern appear dimly.
  • the present invention has for its object to provide an apparatus and a method in which or the Umbuch alssgrade differ less on the two sides of the recording medium less and a mutual influence of the two printed images is avoided.
  • a reloading device which is suitable for reloading the second toner image on the second toner image carrier with the first polarity; that is, the second toner image is charged with the same polarity it already has.
  • the electrostatic properties in particular the absolute charge level, are subject to different fluctuations because the charging is effected by different processes. While the charge of the transferred first toner image is essentially determined by the operating parameters of the transfer device, the charge of the second toner image, which has been generated triboelectrically, depends, inter alia, on the toner throughput and weather influences such as atmospheric moisture, etc. The charge states Therefore, the first and the second toner image are not matched to one another depending on the factors mentioned under certain operating conditions, so that deviations in the transfer printing efficiency and thus in the print image can occur.
  • FIG. 1 shows the schematic structure of an electrophotographic printer with two
  • FIG. 2 is a schematic representation of the two transfer tape drives of
  • FIG. 1 shows a high-performance electrophotographic printer 10 for printing on an endless paper web 12 at a printing speed of 0.9 to 2.0 m / s.
  • a printing unit 14 includes a first image forming and transfer unit 16 for printing on the front side of the paper web 12 and a second image forming and transfer unit 18 for printing the back side of the paper web 12.
  • the image forming and transfer units 16, 18 are referred to below as printing units 16 , 18 denotes.
  • the first printing unit 16 is substantially identical to the second printing unit 18. Therefore, identical components in the first printing unit and the second printing unit 18 are denoted by the same reference numerals, wherein the reference numerals of the second printing unit 18 are provided with a bar. Differences between the first printing unit 16 and the second printing unit 18 will be explained below.
  • the printing unit 14 further contains a paper feeder 20, a control unit 22, a toner supply and processing system 24, an image data processing unit 26 and a paper web drive and guidance system 28.
  • the paper web 12 is by means of Textilbahnantriebsund - enclosuressystems 28 in the direction of arrow Pl through the Promoted printer 10, wherein the paper web 12 is supplied after printing in the printing unit 14 of a fuser 30 which fixes the toner images generated by the printing unit 14 on the paper web 12.
  • the paper drive and - guiding system 28 includes guide rollers 32 to 40 and a drive roller 42 with an opposing pressure roller 44. Further, two hole sensors 46, 48 are provided which monitor the position of edge holes contained in the paper web 12. In the fuser 30, a further drive roller 50 and a pressure roller 52 are provided for paper withdrawal.
  • the first printing unit 16 and the second printing unit 18 are arranged on opposite sides of the paper web 12.
  • the first printing unit 16 is also called upper
  • the printing unit and the second printing unit 18 are also referred to as the lower printing unit.
  • the paper web 12 can be conveyed by means of the drive roller 42 both in the direction of the arrow Pl and in the opposite direction, wherein in the following with forward moving the conveying of
  • Paper web 12 in the direction of arrow Pl and with backward moving the conveying of the paper web 12 opposite to the direction of the arrow Pl is designated.
  • the function of the printing unit 14 and the fixing station 30 is described in detail in WO 00/34831 and DE 198 27 210 C1, which are incorporated by reference into the disclosure of the application.
  • the first printing unit 16 includes a tape drive 66 having a photoconductor belt 68, eg, an organic photoconductor belt, which is commonly referred to as an OPC belt.
  • the photoconductor belt 68 is driven by means of the tape drive 66 in the direction of the arrow P2. With the aid of a cleaning and charging unit 70, the photoconductor belt 68 is discharged, toner residues are removed from the photoconductor belt 68 and this is charged to a predetermined potential.
  • a character generator 72 which is designed as an LED character generator
  • the charge image on the surface of the photoconductor belt 68 contains a latent print image.
  • a developer unit 74 the charge image is developed on the surface of the photoconductor belt 68, ie colored with toner to form a toner image.
  • the first printing unit 16 further contains a tape drive 76 with a transfer belt 78, which in the direction of
  • the photoconductor belt 68 contacts the transfer belt 78 on a transfer printing part 80 (hereinafter also referred to as "second transfer parts 80"), ie the surface of the photoconductor belt 68 touches the surface of the transfer belt 78.
  • a toner image on the photoconductor belt 68 is formed transfer the surface of the transfer belt 78, as will be explained in more detail in connection with FIG. 2 below.
  • Lever 83 are interconnected, the transfer belt 78 is brought in a first Umtik Colour 84 to the paper web 12 and led away from this, wherein the transfer belt 78 is brought in the illustration of Figure 1 to the paper web 12.
  • a roller device for advancing and moving the transfer belt 78 to and from the paper web 12 is described in detail in WO 00/54266, the contents of which are hereby incorporated by reference into the present description.
  • the transfer belt 78 contacts the surface of the paper web 12 on its front side in the introduced state. te, so that a toner image on the transfer belt 78 can be transferred from the transfer belt 78 to the front side of the paper web 12.
  • the feeding of the transfer belt 78 to the paper web 12 is also referred to as pivoting and the removal of the transfer belt 78 from the paper web 12 is also referred to as pivoting.
  • the transfer belts 78, 78 'of the printing unit 16 and the printing unit 18 are pivoted substantially simultaneously to the paper web 12, whereby a contact pressure is generated between two opposite rollers or roller pairs of the tape drives of the transfer belts.
  • the fixing station 30 includes a first fixing unit 54 and a second fixing unit 56 arranged on opposite sides of the paper web 12, wherein the first fixing unit 54 fixes the toner images on the front side and the second fixing unit 56 fixes the toner images on the back side of the paper web 12 ,
  • the fixing units 54, 56 are designed as radiation fixing units, wherein the fixing units 54, 56 each contain a covering device 58, 60 which cover the heat radiators of the fixing units 54, 56 during operating conditions in which no fixing of the printed images on the paper web 12 is to take place , Viewed in the conveying direction of the paper web 12 after the fixing units 54, 56 cooling elements 62, 64 are provided which cool the paper web 12 before exiting the fuser 30 to prevent damage to the paper web 12, in particular due to low paper moisture.
  • FIG. 2 shows an enlarged detail of Figure 1 is shown schematically.
  • the transfer ribbon tape drive 76 of the first printing unit 16 with the transfer belt 78 (hereinafter referred to as first transfer belt 78) and the transfer belt tape drive 76 'of the second printing unit 18 with the associated transfer belt 78' (hereinafter referred to as the second transfer belt 78 ').
  • first transfer belt 78 the transfer belt tape drive 76 'of the second printing unit 18 with the associated transfer belt 78'
  • the second transfer belt 78 ' the transfer belt tape drive 76 'of the second printing unit 18 with the associated transfer belt 78'
  • a portion of the first photoconductor belt 66 is shown, which abuts the aforementioned second transfer printing 80 on the first transfer belt 78.
  • a portion of the second photoconductor belt 66 r is shown, which rests against a third transfer parts 80 'on the second transfer belt 78'.
  • the first roller device 82 comprises rollers 86, 88, 90, 92, 94, 96, 98 and 100, which are connected by levers 83.
  • another roller 102 around which the first photoconductor belt 68 is guided is arranged to contact the first photoconductor belt 68 with a portion of the first transfer belt 78 extending between the rollers 98 and 100 .
  • a roller 102', around which the second photoconductor belt 68 'is guided is arranged to connect the second photoconductor belt 68' to a portion of the transfer belt 78 which extends between the rollers 100 'and 104 'extends, brings into contact.
  • a first drive roller 106 is provided for driving the first transfer belt 78 and a second drive roller 106 'for driving the second transfer belt 78'.
  • first tape drive 76 and the second tape drive 76 ' are constructed substantially mirror-symmetrically with respect to the paper web 12.
  • a deviation from the mirror symmetry consists in the arrangement of the second transfer parts 80 on the one hand and the third transfer printing parts 80 'on the other hand, which, however, only depend on an expedient arrangement of the first photoconductor.
  • Tape drive 66 and the second photoconductive tape drive 66 'in the printer 10 is due (see Figure 1).
  • a transfer device 108 which, in addition to the already mentioned drive roller 106, comprises an AC corotron with a corona wire 110 and a screen 112.
  • the transfer device 108 serves to reload a first toner image located on the first transfer belt 78.
  • a recharging device 114 which comprises an AC corotron with a corona wire 116 and a screen 118 and a roller 120 which serves as a counter pole to the screen 118.
  • the reloader 114 serves to reload a second toner image on the second transfer belt 78 'with the same polarity it already has.
  • charge images are generated by means of the character generators 72 and 72', respectively. These are toned in a known manner by the developer station 74 or 74 'to form a first toner image on the first photoconductor belt 68 and a second toner image on the photoconductor belt 68'.
  • the first and second toner images consist of toner particles charged with a first polarity. The charging of the toner with the first polarity takes place triboelectrically in the developer stations 74 and 74 '. In the embodiment shown, the first polarity is negative.
  • the first toner image is transferred from the first photoconductor belt 68 to the first transfer belt 78.
  • the transfer takes place on the one hand by the contact between the first photoconductor belt 68 and the first trans ⁇ ferrule 78, on the other hand by an electric field which exists between the roller 102 on the one hand and the rollers 98 and 100 on the other.
  • the roller 102 is at ground potential, and to the rollers 98 and 100 are applied electrostatic potentials which in sum have a second polarity opposite to the first polarity.
  • the resulting electric field is directed so that the toner is transferred from the first photoconductor belt 68 to the first transfer belt 78.
  • the roller 98 may have the first polarity and the roller 100 may have the second.
  • the transfer printing on the third transfer printing parts 80 'takes place in the same way.
  • the first transfer belt 78 is moved in the direction of the arrow P3, so that the first toner image is moved by the transfer device 108 (see Fig. 2).
  • an AC voltage of 8 to 20 kV ss (measured from peak to peak) with a frequency of 2 to 20 kHz is applied to the corona wire 110.
  • the transport roller 106 is at ground potential, while on the screen 112, a DC voltage of an amount of 0.1 to 5 kV and a second polarity, which is opposite to the first polarity, is applied.
  • the first toner image is transferred from the first polarity to the second polarity.
  • the shield current is regulated to a target value which is within the stated range.
  • the second toner image is moved on the second transfer belt 78 'through the afterloading device 114, in which it is subsequently is charged, that is charged with the same, first polarity that it already has.
  • the reloading device 114 is constructed in the same way as the reloading device 108, except for the polarities of the screen 118 and the roller 120
  • the voltage ranges of the DC and AC voltage and the range of the shielding current in the afterloading device 114 correspond in magnitude to those of the transfer device.
  • the shield current of the afterloading device 114 is also regulated to a desired value.
  • the nominal values of the screen currents in the transfer device 108 and the afterload device 114 are equal in terms of the amount.
  • the DC voltage and the AC voltage at the reloading device 108 and the afterloading device 114 are selected such that the reversed first toner image and the reloaded second toner image, apart from their polarity, have the same electrostatic properties.
  • the transferred first toner image and the reloaded second toner image are then conveyed on their respective transfer belt 78 or 78 'into the first transfer area 84.
  • the roller device 82 and the roller device 82 ' are pivoted to the paper web 12 in such a way that the first transfer belt 78 with the first toner image thereon, the paper web 12 and the second transfer belt 78' with the second toner image on it Umtik Colour 84 between the rollers 90 and 92 on the one hand and 90 'and 92' pressed together.
  • the electric field between the upper pair of rollers 90, 92 and the lower pair of rollers 90 ', 92' is such that in the illustration of Figure 2, the first toner image, which has been reloaded to the second polarization, experiences an electrostatic force downward the top of the paper web 12 is re-printed, while the second toner image, which has been charged triboelectrically with the first polarity and has been recharged with the first polarity, experiences an electrostatic force upward and thus transferred from the second transfer belt 78 'to the underside of the paper web 12 becomes.
  • first transfer parts 84 are described in EP 1 110 125 B1, EP 1 465 023 A1 and the corresponding US Pat. No. 6,556,804 B1, in particular in FIGS. 9 to 11 contained therein.
  • the descriptions of the various embodiments of a transfer printing parts contained therein between two transfer ribbons and a carrier material are hereby incorporated by reference into the present specification.
  • first and second toner images For the function of double-sided simultaneous transfer printing on the first transfer parts 84, it is necessary for the first and second toner images to be charged with different polarities so that they move in different directions with the same electric field (namely the first toner image from the first transfer belt 78) bottom and the second toner image from the second transfer belt 78 'up) can be reversed.
  • a transfer device corresponding to the transfer device 108 of FIGS. 1 and 2 was already provided in the devices from the documents EP 1 110 125 B1, EP 1 465 023 A1 and US Pat. No. 6,556,804 B1, but not the afterload device 114.
  • the electrical and electrostatic properties of the printed image change depending on the height of the toner application, because thereby the distance between the transfer belt and the paper web and thus the capacity of the transfer printing system is changed.
  • the properties of the toner of the first print image and the second print image can be conditioned, i. be adapted to each other in such a way that a uniform transfer without interaction between the two images is achieved.
  • the print quality on both sides of the paper is identical, largely independent of the electrostatic properties of the toner, the amount of toner applied and the toner throughput.
  • the use of a reloading device 108 in combination with a reloading device 114 makes it possible to achieve identical transfer printing efficiencies in the two printing couples 16 and 18.
  • both the reloading device 108 and the afterloading device 114 comprise an AC corotron with a corona wire 110 or 116, a screen 112 or 118, to which a DC voltage is applied, and a counter-pole element, which is formed by rollers 106, 120 become.
  • a counter-pole element which is formed by rollers 106, 120 become.
  • other counter-pole elements may be used, for example a grinding object such as a brush or sheet or an element which does not contact the transfer belt 78 or 78 ', such as a blade element or another corotron.
  • the arrangement of the reloading device 108 and the reloading device 114 may differ from that of FIG. 2, as long as they are viewed in the direction of rotation of the respective transfer belt 78 or 78 'between the second transfer parts 80 and the first transfer parts 84 or between the third transfer parts 80' and the first transfer parts 84 are arranged.
  • the reloading device 108 can also be arranged in the second or lower printing unit 18 and the reloading device 114 in the first or upper printing unit 16.
  • a plurality of developer stations with differently colored toner can be arranged on the photoconductor belt 66 or 66'. Then, successively different color components of a color image (so-called color separations) can be produced on the photoconductor belt 68 or 68 'and superimposed on the transfer belt 78 or 78' in register.
  • the transfer belt tape drives 76 and 76 ' are in a collection mode in which the transfer belts 78 and 78' are pivoted away from the paper web 12 by the roller devices 82 and 82 '.
  • the transfer belts 78 and 78 ' are pivoted to the paper web 12, the collecting image on the first transfer belt 78 is reloaded from the transfer device 108, the collecting image on the second transfer belt 78' reloaded from the afterloading device 114, and the two so Conditioned collecting images are at the transfer printing 84 as described above simultaneously transferred to the respective side of the paper web 12.

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

Abstract

La présente invention concerne un dispositif et un procédé pour imprimer simultanément un support d'enregistrement (12) des deux côtés. Le dispositif comprend un premier support d'image de toner continu (78) et un second support d'image de toner continu (78'); un élément (80) pour produire une première image de toner, qui se compose de toner qui est chargé avec une première polarité, sur le premier support d'image de toner (78), et un élément (80') pour produire une seconde image de toner, qui se compose de toner qui est également chargé avec la première polarité, sur le second support d'image de toner (78'). Le dispositif comprend également un dispositif de changement de charge (108) qui est adapté pour faire passer la première image de toner qui se trouve sur le premier support d'image de toner (78), à une seconde polarité qui est opposée à la première polarité, et un dispositif d'application de nouvelle charge (114) qui est adapté pour faire passer la seconde image de toner qui se trouve sur le second support d'image de toner (78'), à la première polarité.
EP06725285A 2005-05-20 2006-03-23 Dispositif et procede pour imprimer un support d'enregistrement des deux cotes, avec un dispositif de changement de charge et un dispositif d'application de nouvelle charge Withdrawn EP1882211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005023462A DE102005023462A1 (de) 2005-05-20 2005-05-20 Vorrichtung und Verfahren zum beidseitigen Bedrucken eines Aufzeichnungsträgers mit Umlade- und Nachladevorrichtung
PCT/EP2006/061008 WO2006122847A1 (fr) 2005-05-20 2006-03-23 Dispositif et procede pour imprimer un support d'enregistrement des deux cotes, avec un dispositif de changement de charge et un dispositif d'application de nouvelle charge

Publications (1)

Publication Number Publication Date
EP1882211A1 true EP1882211A1 (fr) 2008-01-30

Family

ID=36499435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06725285A Withdrawn EP1882211A1 (fr) 2005-05-20 2006-03-23 Dispositif et procede pour imprimer un support d'enregistrement des deux cotes, avec un dispositif de changement de charge et un dispositif d'application de nouvelle charge

Country Status (5)

Country Link
US (1) US7801472B2 (fr)
EP (1) EP1882211A1 (fr)
JP (1) JP2008541180A (fr)
DE (1) DE102005023462A1 (fr)
WO (1) WO2006122847A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007046610B4 (de) 2007-09-28 2009-06-10 OCé PRINTING SYSTEMS GMBH Vorrichtung zur Einstellung des elektrischen Potentials bei einem bewegten bandförmigen Träger aus halbleiterfähigem Material für Farbpartikel bei einem elektrografischen Druck- oder Kopiergerät
DE102008016163A1 (de) 2008-03-28 2009-10-08 OCé PRINTING SYSTEMS GMBH Vorrichtung zum simultanen beidseitigen Bedrucken eines Bedruckstoffs durch ein elektrofotografisches Druck- oder Kopiergerät
DE102009013972B4 (de) 2009-03-19 2010-12-23 OCé PRINTING SYSTEMS GMBH Corotroneinrichtung für ein über ein Führungsmittel bewegtes Element, insbesondere bei einem elektrografischen Druckgerät
DE102010016856A1 (de) 2010-05-10 2011-11-10 OCé PRINTING SYSTEMS GMBH Druckeinrichtung zum beidseitigen Bedrucken eines bandförmigen Bedruckstoffs
DE102012103343A1 (de) 2012-04-17 2013-10-17 Océ Printing Systems GmbH & Co. KG Verfahren zum Betreiben eines Digitaldruckers unter Beaufschlagung eines Aufzeichnungsträgers mit Ionen sowie zugehöriger Digitaldrucker
DE102013107451A1 (de) 2013-07-15 2015-01-15 Océ Printing Systems GmbH & Co. KG Druckeinrichtung zum beidseitigen Bedrucken eines bandförmigen Bedruckstoffs

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US20080205920A1 (en) 2008-08-28
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DE102005023462A1 (de) 2006-11-23
WO2006122847A1 (fr) 2006-11-23

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