EP1649326B1 - Vorrichtung und verfahren zur elektrophoretischen flüssigentwicklung - Google Patents

Vorrichtung und verfahren zur elektrophoretischen flüssigentwicklung Download PDF

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Publication number
EP1649326B1
EP1649326B1 EP04741325A EP04741325A EP1649326B1 EP 1649326 B1 EP1649326 B1 EP 1649326B1 EP 04741325 A EP04741325 A EP 04741325A EP 04741325 A EP04741325 A EP 04741325A EP 1649326 B1 EP1649326 B1 EP 1649326B1
Authority
EP
European Patent Office
Prior art keywords
developer
image carrier
roller
carrier element
image
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 - Fee Related
Application number
EP04741325A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1649326A2 (de
Inventor
Martin Berg
Volkhard Maess
Martin Schleusener
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
Oce Printing Systems GmbH and Co KG
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 filed Critical Oce Printing Systems GmbH and Co KG
Publication of EP1649326A2 publication Critical patent/EP1649326A2/de
Application granted granted Critical
Publication of EP1649326B1 publication Critical patent/EP1649326B1/de
Expired - Fee Related legal-status Critical Current
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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5008—Driving control for rotary photosensitive medium, e.g. speed control, stop position control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers
    • 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
    • G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0142—Structure of complete machines
    • G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
    • G03G15/0194—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to the final recording medium
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/101—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer for wetting the recording material
    • 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
    • G03G2215/00021—Plural substantially independent image forming units in cooperation, e.g. for duplex, colour or high-speed simplex

Definitions

  • a potential image carrier e.g. a photoconductor
  • image-dependent to generate potential images charge images
  • image sites areas to be inked (hereinafter referred to as image sites) of the potential images are made visible by toner with a developer station (inking station).
  • developer station inking station
  • dry toner or toner-containing liquid developer For dyeing the image areas, either dry toner or toner-containing liquid developer can be used.
  • a process for electrophoretic liquid development (electrographic development) in digital printing systems is, for example EP 0 756 213 B1 or EP 0 727 720 B1 known.
  • the method described there is also known by the name HVT (High Viscosity Technology).
  • HVT High Viscosity Technology
  • a liquid containing silicone oil carrier fluid having dispersed therein color particles (toner particles) is used as a liquid developer.
  • the toner particles typically have a particle size of less than 1 micron. More about this is from the EP 0 756 213 B1 or EP 0 727 720 B1 removable, which are part of the disclosure of the present application.
  • electrophoretic liquid development process of the type mentioned with silicone oil as a carrier liquid with toner particles dispersed therein and also a developer station of one or more developer rollers for wetting the image bearing member with liquid developer according to Potential images on the image carrier element.
  • the developed potential image is then transferred to the recording medium via one or more transfer rollers.
  • the problem to be solved by the invention is to provide an electrographic printing apparatus and a method with which a variable printing speed can be realized with a constant print quality.
  • the printing device has the advantage that a change in the printing speed is infinitely and in a wide range without reducing the print quality is possible.
  • a printing apparatus consisting of an image-forming system which generates an electronic charge image on an image-bearing member (e.g., photoconductor) which is visualized by charged toner particles (toner particles) by means of a developer station and then onto a record carrier or final image carrier (e.g. B. paper) and fixed on this.
  • an image-bearing member e.g., photoconductor
  • toner particles toner particles
  • a record carrier or final image carrier e.g. B. paper
  • the process parameters eg photoconductor potential, light energy, auxiliary potential above the developer gap, toner concentration, or auxiliary potentials for transfer to the final image carrier
  • the parameters to be influenced are preferably to be coupled to one another via one or more control processes.
  • a development process is used which inherently produces a toner deposit independent of the limit speed of the image-bearing member.
  • a liquid development in which in a high-resistance carrier liquid (eg., Silicone oil) fine toner particles (preferably about 1 micron diameter or smaller) are dispersed, wherein the concentration of the toner particles is so highly selectable that in a thin developer gap (Preferably 5 to 10 microns) between the image bearing member and a developer roller so many toner particles are that with complete (or almost complete) deposition of all the toner particles located in the developer gap the desired coloration (optical density or color density) is formed on the image bearing member.
  • a high-resistance carrier liquid eg., Silicone oil
  • fine toner particles preferably about 1 micron diameter or smaller
  • concentration of the toner particles is so highly selectable that in a thin developer gap (Preferably 5 to 10 microns) between the image bearing member and a developer roller so many toner particles are that
  • the prerequisite for the function is further that the mobility of the toner particles in the development gap is at least so large that during the residence time of the toner particles in the developer gap all (or almost all) toner particles under the influence of over the inked areas of the image bearing element existing electric field strength to completely pass through the developer gap and be deposited on the areas to be inked on the surface of the image carrier element and not or almost not deposited on the surface of the image carrier under the influence of over the non-inking areas of the image carrier existing electric field strength.
  • the achievable maximum coloration in conjunction with a targeted adjustment of the toner concentration in the developer liquid, the achievable maximum coloration can be preselected or adjusted.
  • a certain set maximum inking can be kept constant at variable printing speed.
  • Such a developer station may comprise a developer roller which transports a liquid developer past the image carrier member such that the toner deposit on the image carrier member is independent of its speed.
  • the flooding can be achieved due to the liquid developer's gravity or by using overpressure.
  • the amount of liquid developer conveyed by the anilox roller can be determined by the screening of the anilox roller.
  • the promotion of the liquid developer by the anilox roll is area-related and thus independent of the printing speed, so that at different printing speeds always the same amount of liquid developer per unit area is brought to the developer roller.
  • the anilox roller has a screening, which allows the promotion of a volume of liquid developer from 1 to 40 cm 3 / m 2 (based on the roll surface), preferably 5-20 cm 3 / m 2 .
  • the developer roller has an elastic coating which is in contact with the image carrier element and with the anilox roller.
  • the chambered doctor blade may be a seated on the peripheral surface of the anilox roller chamber, with two sealing the chamber squeegees, namely seen a closing squeegee at the entrance of the chamber in the direction of rotation of the anilox roller, and a metering blade at the exit of the chamber in the direction of rotation of the anilox roller, and with two the edge of the anilox adjacent lateral seals.
  • the supply of the liquid developer into the chamber through one or more inlet openings, preferably via pumps, and the removal of the liquid developer from the chamber through inlet or outlet openings.
  • the chambered doctor blade In order to ensure a bubble-free transport of the liquid developer, it is expedient to arrange the chambered doctor blade to the grid means that the metering blade is flooded by liquid developer. The same result can be achieved if the liquid developer in the chambered doctor blade is exposed to overpressure, so that the metering doctor blade is flooded by liquid developer.
  • a cleaning device can be arranged adjacent to the developer, which takes over the residual image.
  • the cleaning device may comprise a cleaning roller and a cleaning element, e.g. a squeegee that strips the liquid developer from the cleaning roller.
  • the developing agent may be a developer tape, preferably a developer roller.
  • the screen means is preferably an anilox roller, but may also be a screen tape.
  • the amount of liquid developer transported to the developer roller can be influenced in a simple manner by the screening of the anilox roller. It is advantageous if the anilox roller has a screening which allows the conveyance of a volume of liquid developer from 1 to 40 cm 3 / m 2 (based on the roller surface), preferably 5-20 cm 3 / m 2 . In this case, the promotion of the liquid developer by the anilox roll is area-related and thus independent of the printing speed, so that at different printing speeds always the same amount of liquid developer per unit area is brought to the developer roller.
  • the developer roller, screen roller and cleaning roller can rotate at constant speed ratios (surface speeds), preferably in the ratio 1: 1: 1.
  • the directions of movement of the surfaces of the developer roller and image carrier element can be the same direction or opposite, the developer roller and anilox roller rotate in the same direction or in opposite directions, the developer roller and cleaning roller in the same direction or in opposite directions.
  • a potential for specific field effect on the charged toner particles can be applied to the developer roller and the image carrier element. This also applies between developer roller and cleaning roller as well as between anilox roller and developer roller.
  • the developer roller In order to further favorably influence the transition of liquid developers, it is expedient to provide the developer roller with an elastic coating in order to create defined zones of action to the adjacent elements.
  • the effective zone then arises through a defined deformation of the elastic coating of the developer roller, preferably via spring force delivery to the adjacent elements (image carrier element, cleaning roller, anilox roller).
  • An effective zone is also created by the incompressible layer of the liquid developer, which defines the distance between the developer roller and the image carrier element, developer roller and cleaning roller and developer roller and anilox roller.
  • the chambered doctor blade may comprise a chamber sitting on the peripheral surface of the anilox roller, two doctoring blades sealing the chamber, a squeegee seen at the entrance of the chamber in the direction of rotation of the anilox roller, seen a metering blade at the exit of the chamber in the direction of rotation of the anilox roller, and two adjacent to the lateral edge of the anilox roller have lateral seals.
  • the supply of the liquid developer in the chamber can be done through one or more inlet openings preferably via pumps; the removal of the liquid developer from the chamber through inlet or discharge openings, wherein the inlet or discharge openings should be exchangeable depending on the installation position to the anilox roller.
  • the metering blade is above the squeegee in the direction of gravity, and to handle higher viscosity liquid developers (e.g., 1000 mPa * s) a slight overpressure can be created in the chamber.
  • the installation position of the chambered doctor blade on the anilox roller is made variable.
  • the installation position of the cleaning device can be made variable on the developer roller.
  • the device as a developer station in an electrophoretic printing device. It is then particularly advantageous that in the developer station, the developer roller, the anilox roller and the cleaning roller can be arranged at a constant angle to each other, so that the arrangement of developer stations to a roller-shaped image carrier element under different angular positions is possible without the assignment of developer roller, anilox roller To change cleaning roller to each other, ie developer stations of the same structure can be arranged without change at different positions along the image carrier element. This advantage is further increased by the fact that the angular position of the chambered doctor blade on the anilox roller can be changed.
  • printing modules can be created, each having a developer station and an image bearing member, which can be arranged along a deflected recording medium under different angular positions, the arrangement of chamber doctor blade, anilox roller and developer roller is maintained to each other in the developer station.
  • the printing module may additionally comprise a transfer roller, e.g. transfers the toner images from the image bearing member to the recording medium.
  • the printing device for printing on a printing substrate can consist of a combination of one or more printing units with a common printing material guide mechanism and with a central control unit for coordinating the processes in the printing units, in the printing material guide as well as in possibly connected devices of the printing material pre- or post-processing.
  • the developer roller 203 contacts an image-bearing member F, eg, a photoconductor of a photoconductor belt or a roller, with a photoconductor layer disposed thereon. Furthermore, a transfer roller 121, Fig. 5 for transferring the toner toner-colored toner image from the image-bearing member F to a tape-shaped recording medium 1 or a sheet-shaped recording medium.
  • an image-bearing member F eg, a photoconductor of a photoconductor belt or a roller, with a photoconductor layer disposed thereon.
  • a transfer roller 121, Fig. 5 for transferring the toner toner-colored toner image from the image-bearing member F to a tape-shaped recording medium 1 or a sheet-shaped recording medium.
  • liquid developer suitable for electrophoretic development with colorant (toner particles) distributed therein such as for example EP 0 756 213 B1 or EP 0 727 720 B1 is known.
  • the cleaning of the inverse residual image of the developer roller 203 in turn takes place by its transfer to the cleaning roller 204 and removal of the liquid developer from the cleaning roller 204 by a cleaning element 205, eg a squeegee.
  • the removed liquid developer may be returned to a liquid developer supply reservoir (not shown).
  • the developer roller 203, anilox roller 202, and cleaning roller 204 advantageously rotate at constant speed ratios to one another (surface speeds), preferably at a ratio of 1: 1: 1.
  • the direction of rotation of the developer roller 203 and the image-bearing member F may be the same or opposite, that of the developer roller 203 and the anilox roller 202 and the developer roller 203 and the cleaning roller 204 may be the same direction or opposite. Defined potentials for targeted field effect on the charged toner particles can be applied to them.
  • the developer roller 203 has an elastic coating 206 and is in contact with the image bearing member F, the screen roller 202, and the cleaning roller 204.
  • the anilox roller 202 is adapted in its screening to promote a volume of liquid developer from 1 to 40 cm 3 / m 2 (based on the roll surface), preferably 5-20 cm 3 / m 2 .
  • the promotion of liquid developer is also area-related and thus independent of the printing speed, i. at different printing speeds, the same amount of liquid developer per unit area can always be supplied to the developer roller 203.
  • the chamber doctor blade 201 is a seated on the peripheral surface of the anilox roller 202 chamber 207 which is sealed by two doctor blades, the squeegee R1 seen at the entrance of the chamber 207 in the direction of rotation of the anilox roller 202, the metering blade R2 at the exit of the chamber 207 in the direction of rotation of the anilox roller 202nd seen, and two seals for sealing to the lateral edge of the anilox roller 202 (not visible in the figures).
  • the supply of the liquid developer into the chamber 207 of the chambered doctor blade 201 can take place through one or more openings, preferably via pumps.
  • the removal of the liquid developer from the chamber 207 for example, advantageously for better mixing of the liquid developer, and the emptying of the chamber 207 can be done either via inlet or outlet openings.
  • an exchange of the inlet or outlet openings, depending on the installation position of the chambered doctor blade 201 (FIG. Fig. 2 . Fig. 3, Fig. 4 ) possible (in the Fig. 2 and 3 g denotes the direction of action of gravity and thus its influence on the liquid level in the chambered doctor blade 201).
  • the angular position of the chambered doctor blade 201 to the anilox roller 202 is limited by the fact that the metering doctor blade R2 always has to be located below the surface of the liquid developer (this is for free air filling of the cells of the screening of the anilox roller 202).
  • the generation of a slight overpressure in the chambered blade 201 may be used to hold the metering blade R2 below the liquid surface.
  • This solution is also suitable for processing higher viscosity liquid developers (e.g., 1000 mPa * s).
  • Fig. 5 shows an arrangement of a plurality of printing modules (PM), for example in a digital color printing device.
  • print modules PM each with an image carrier element F, a developer station (in Fig. 5 designated E) and a transfer roller 121 which transfers the toner image from the image bearing member F to a recording medium 1 to the recording medium 1, which is deflected by a guide roller 2, arranged.
  • the structure of the developer stations E accordingly Fig. 1 to 4 makes it possible to arrange structurally identical printing modules PM in the deflection region of the recording medium 1 at different angles.
  • chamber doctor blades 201 for supplying the liquid developer to the image carrier element F, since this permits the use of identical developer stations E at various installation positions (simplex, duplex, horizontal, vertical, angular range> 120 ° for satellite arrangement); please refer Fig. 5 for a digital color printer with several developer stations E1-E5 according to the desired color separations.
  • the angular range can be determined by additionally adjustable positions of the chambered doctor blade 201 (and the cleaning device 204, 205) via an adjustment device or by adjustable design of chambered doctor blade 201 and cleaning device 204, 205 (FIG. Fig. 2 . Fig. 3 ) to be changed.
  • a printing system consists of a combination of a plurality of successively arranged printing units 100 with a common Betikstoff arrangementstechnik 200.
  • At the printing system machines can be connected to the pre-printing or post-processing.
  • a central control unit 400 for coordinating the processes in the printing units 100 and in the Betikstoff Operationsstechnik 200 is also provided.
  • the printing units 100 are designed as combinable modules that are identical, compact and easy to handle. They are adaptable to the width of the printing substrate 1.
  • the toner concentration in the liquid developer is selected such that there are so many toner particles in the developer gap between developer roller and imaging member 111 that upon complete deposition of all or nearly all of the toner particles in the developer gap, the desired coloration of the charge images occurs.
  • the developer gap should be 5 to 10 .mu.m and the mobility of the toner particles in the developer gap such that during the residence time of the toner particles in the developer gap as possible all toner particles under the influence of over the einzDCden imaging element 111 electric field strength traverse the developer gap and on the inked Surface of the imaging element 111 are deposited.
  • the printing unit 100 further has a transfer unit 120 from a transfer element 121, preferably a transfer roller or a transfer belt, and from a transfer station 123 with one or more rollers.
  • the transfer station 123 can be combined with transfer tools preferably a corona device.
  • the transfer unit 120 may have a toner image conditioning station 122, preferably a roller or a belt in contact with the transfer element 121, which may optionally be electrically adjustable or tempered.
  • the transfer unit 120 may include a cleaning station 124 for cleaning the transfer member 121, e.g. is realized as a blade-roller or fleece cleaning.
  • the printing unit 100 further has a printing unit drive unit 130 with a power electronics 131 and a digital electronics 132.
  • the power electronics 131 is associated with the motor controls and high voltage supplies the printing unit 110 and the transfer unit 120
  • the digital electronics 132 such as a microprocessor control, is used to realize Process control in interaction with the central control unit 400 ( Fig. 7 ), preferably the signal processing including the interface control to sensors of the printing unit 110 and the transfer unit 120, respectively.
  • the printing unit 100 can additionally have a secondary and auxiliary process unit 140 with a colorant supply station 141, and / or with a printing material conditioning station 142, preferably for paper moistening, and / or with a filter and suction station 143, preferably for the developer station or for the corona device.
  • a secondary and auxiliary process unit 140 with a colorant supply station 141, and / or with a printing material conditioning station 142, preferably for paper moistening, and / or with a filter and suction station 143, preferably for the developer station or for the corona device.
  • the printing unit 100 has an image data processing unit 150, a controller.
  • the printing web tension generating station 211 may be a vacuum brake or an omega train, which is arranged at the entrance of the printing system.
  • the printing material web alignment station 212 can be realized as a pivoting frame, which is also arranged at the entrance of the printing system.
  • the printing material removal station 213 may be a conveyor roller pair, which is arranged at the output of the printing system.
  • At least one printed image conditioning unit can be provided between the printing units 100 and / or at the output of the printing system. Between the printing units 100 may be arranged as Druckbuchditionierü each have a unit for intermediate fixing 231, at the output of the printing system, a fuser 232, preferably an IR radiation fixation or heat-pressure fixation.
  • the intermediate fixing unit 231 may be e.g. are also omitted in a working according to the electrophoretic principle printing unit 100.
  • a gloss station 233 can be provided at the output of the printing system.
  • Fig. 8 The structure of the modular printing device for printing single sheets (cut sheet) can Fig. 8 be removed. In the following, only the Fig. 7 For the same components is explained in the explanation Fig. 7 directed. It should be noted that equal reference numerals have a "3" at the beginning rather than a "2".
  • the Bebuchstoff arrangementstechnik 300 has a Betikstoff arrangementstician 310 with a conveyor belt 311 on which the single sheets or sheets 1 rest and through which they are moved through the printing system. Furthermore, a drive unit 340 is provided whose tasks correspond to the drive unit 240. These are referred to.
  • the central power electronics 410 has a mains voltage switch - and backup system and the central power supply of the printing system.
  • the printing unit 100 further has a transfer unit 120 from a transfer element 121, preferably a transfer roller or a transfer belt, and from a transfer station 123 with one or more rollers.
  • the transfer printing station 123 can be combined with transfer printing aids, preferably a corona device.
  • the transfer unit 120 may have a toner image conditioning station 122, preferably a roller or a belt in contact with the transfer element 121, which may optionally be electrically adjustable or tempered.
  • the transfer unit 120 may include a cleaning station 124 for cleaning the transfer element 121, which is realized, for example, as a blade-roller or fleece cleaning.
  • the printing unit 100 further has a printing unit drive unit 130 with a power electronics 131 and a digital electronics 132.
  • the power electronics 131 are associated with the motor controls and high voltage supplies of the printing unit 110 and the transfer unit 120
  • the digital electronics 132 e.g. a microprocessor control, is used to implement process controls in interaction with the central control unit 400, preferably the signal processing including the interface control to sensors of the printing unit 110 and the transfer unit 120th
  • the printing unit 100 can additionally have a secondary and auxiliary process unit 140 with a colorant supply station 141, and / or with a printing material conditioning station 142, preferably for paper moistening, and / or with a filter and suction station 143, preferably for the developer station or for the corona device.
  • a secondary and auxiliary process unit 140 with a colorant supply station 141, and / or with a printing material conditioning station 142, preferably for paper moistening, and / or with a filter and suction station 143, preferably for the developer station or for the corona device.
  • the printing unit 100 has an image data processing unit 150, a controller.
  • the developer roller 203 contacts an image carrier element F, eg a photoconductor of a photoconductor belt or a roller, with photoconductor layer disposed thereon.
  • image carrier element F eg a photoconductor of a photoconductor belt or a roller
  • the charge images are present, which are to be colored with toner particles.
  • the liquid developer is transported through the developer roller 203 through a developer gap between the image-bearing member F and the developer roller 203. There, the toner particles are transferred to the image bearing member F according to the development process described above.
  • the cleaning of the inverse residual image of the developer roller 203 in turn takes place by its transfer to the cleaning roller 204 and removal of the liquid developer from the cleaning roller 204 by a cleaning element 205, eg a squeegee.
  • the removed liquid developer may be returned to a liquid developer supply reservoir (not shown).
  • the developer roller 203, anilox roller 202, and cleaning roller 204 advantageously rotate at constant speed ratios to one another (surface speeds), preferably at a ratio of 1: 1: 1.
  • the direction of rotation of the developer roller 203 and the image-bearing member F may be the same or opposite, that of the developer roller 203 and the anilox roller 202 and the developer roller 203 and the cleaning roller 204 may be the same direction or opposite. Defined potentials for targeted field effect on the charged toner particles can be applied to them.
  • the developer roller 203 has an elastic coating 206 and is in contact with the image bearing member F, the screen roller 202, and the cleaning roller 204.
  • the raster roller 202 is realized in its screening to promote a matched to the speed of the image carrier element F volume of liquid developer of, for example, 1 to 40 cm 3 / m 2 (based on the roll surface).
  • the promotion of liquid developer is area-related and thus independent of the printing speed, ie at different printing speeds, the same amount of liquid developer per unit area of the developer roller 203 can always be supplied.
  • the developed charge images on the image carrier element F are finally transferred directly or via a transfer roller to a recording medium.
  • This process can be done in a known manner, eg as it is in EP 0 727 720 B1 is described.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Fixing For Electrophotography (AREA)
EP04741325A 2003-07-29 2004-07-29 Vorrichtung und verfahren zur elektrophoretischen flüssigentwicklung Expired - Fee Related EP1649326B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10334532 2003-07-29
PCT/EP2004/008530 WO2005013013A2 (de) 2003-07-29 2004-07-29 Vorrichtung und verfahren zur elektrophoretischen flüssigent wicklung

Publications (2)

Publication Number Publication Date
EP1649326A2 EP1649326A2 (de) 2006-04-26
EP1649326B1 true EP1649326B1 (de) 2011-10-05

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EP04741325A Expired - Fee Related EP1649326B1 (de) 2003-07-29 2004-07-29 Vorrichtung und verfahren zur elektrophoretischen flüssigentwicklung

Country Status (5)

Country Link
US (1) US7463851B2 (ja)
EP (1) EP1649326B1 (ja)
JP (2) JP4991293B2 (ja)
AU (2) AU2004260967B2 (ja)
WO (1) WO2005013013A2 (ja)

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DE102004032922A1 (de) * 2004-07-07 2006-02-02 OCé PRINTING SYSTEMS GMBH Vorrichtung und Verfahren zur Entwicklung von zuvor auf einem Potentialbildträger erzeugten die zu druckenden Bilder enthaltenden Potentialbildern bei einer elektrografischen Druck- oder Kopiereinrichtung
DE102005055156B3 (de) * 2005-11-18 2007-05-31 OCé PRINTING SYSTEMS GMBH Vorrichtung und Verfahren zur Entwicklung von auf einem Zwischenbildträger erzeugten Potentialbilder bei einer elektrografischen Druck- oder Kopiereinrichtung
DE102006001648B3 (de) * 2006-01-12 2007-09-20 OCé PRINTING SYSTEMS GMBH Vorrichtung zum Entwickeln von auf einem Zwischenbildträger erzeugten Potentialbildern von zu druckenden Bildern mit wählbaren kundenspezifischen Farben bei einer elektrografischen Druck- oder Kopiereinrichtung
DE102007002146B4 (de) 2007-01-15 2008-11-27 OCé PRINTING SYSTEMS GMBH Verfahren zur Erhöhung der Druckgeschwindigkeit eines elektrografischen Farbdruckgeräts bei dessen Einsatz für Einfarbendruck
DE102007011630A1 (de) 2007-03-09 2008-09-11 OCé PRINTING SYSTEMS GMBH Vorrichtung zum Auftragen eines Fluids auf einen Bedruckstoff
DE102008022212A1 (de) 2008-05-06 2009-11-12 OCé PRINTING SYSTEMS GMBH Vorrichtung zur Vorbereitung eines Aufzeichnungsträgers für den Umdruck von Tonerbildern bei einem elektrophoretischen Drucksystem
DE102008048047B4 (de) 2008-09-19 2015-11-05 Océ Printing Systems GmbH & Co. KG Transfereinheit bei einem elektrophoretischen Druck- oder Kopiergerät
DE102008048256B4 (de) 2008-09-22 2016-06-02 Océ Printing Systems GmbH & Co. KG Elektrophoretisches Druck- oder Kopiergerät
DE102009005371A1 (de) 2009-01-21 2010-07-29 OCé PRINTING SYSTEMS GMBH Anordnung zum Austausch eines flüssigen Mediums zwischen einer das flüssige Medium aufweisenden Kammer und einer rotierenden Transporteinheit für das flüssige Medium bei einem elektrografischen Druckgerät
DE102009009043B4 (de) * 2009-02-16 2011-01-27 OCé PRINTING SYSTEMS GMBH Anordnung zum Fixieren von Druckbildern auf einem Bedruckstoff
DE102010006098A1 (de) 2010-01-28 2011-08-18 Océ Printing Systems GmbH, 85586 Transfereinheit bei einem elektrophoretischen Druck- oder Kopiergerät
DE102010000549A1 (de) * 2010-02-25 2011-08-25 Océ Printing Systems GmbH, 85586 Vorrichtung und Verfahren zur Entwicklung von auf einem Zwischenbildträger erzeugten Potentialbilder bei einer elektrografischen Druck- oder Kopiereinrichtung
DE102010000652B4 (de) 2010-03-05 2015-11-26 Océ Printing Systems GmbH & Co. KG Elektrophoretisches Druckgerät
DE102010015985B4 (de) 2010-03-16 2015-11-12 Océ Printing Systems GmbH & Co. KG Anordnung zur Reinigung eines Transportmittels für Flüssigentwickler von einer an dessen Oberfläche haftenden Flüssigentwicklerschicht bei einem elektrophoretischen Druckgerät
DE102010016023A1 (de) 2010-03-19 2011-09-22 OCé PRINTING SYSTEMS GMBH Elektrophoretisches Druckgerät
DE102010016085B4 (de) 2010-03-23 2016-06-02 Océ Printing Systems GmbH & Co. KG Verfahren zur Vermeidung von Ablagerungen auf einer Entwicklerflüssigkeit transportierenden Walze bei einem elektrophoretischen Druckgerät
DE102010016494B4 (de) 2010-04-16 2016-06-16 Océ Printing Systems GmbH & Co. KG Verfahren zur Optimierung des Transfers von Entwicklerflüssigkeit bei einem elektrophoretischen Druckgerät
DE102010017005A1 (de) 2010-05-18 2011-12-22 OCé PRINTING SYSTEMS GMBH Anordnung zur Regelung der Anteile von zwei in einer Mischeinheit zu mischenden Komponenten auf vorgegebene Sollwerte
DE102010036335B4 (de) 2010-07-12 2016-06-16 Océ Printing Systems GmbH & Co. KG Verfahren zur Optimierung des Transfers von Entwicklerflüssigkeit auf einen Bedruckstoff bei einem elektrophoretischen Druckgerät
DE102010036480A1 (de) 2010-07-19 2012-01-19 OCé PRINTING SYSTEMS GMBH Elektrografisches Druckgerät
DE102010037245B4 (de) 2010-08-31 2017-09-14 Océ Printing Systems GmbH & Co. KG Verfahren zum Bedrucken eines Bedruckstoffs bei einem elektrografischen Druckgerät
DE102010037244A1 (de) 2010-08-31 2012-03-01 OCé PRINTING SYSTEMS GMBH Anordnung zum Bedrucken eines Bedruckstoffs bei einem elektrofotografischen Druckgerät
DE102011000814A1 (de) 2011-02-18 2012-08-23 OCé PRINTING SYSTEMS GMBH Heizeinheit für einen Aufzeichnungsträger bei einem elektrografischen Druckgerät
DE102011000815A1 (de) 2011-02-18 2012-08-23 OCé PRINTING SYSTEMS GMBH Anordnung zur Optimierung des Transfers eines in Trägerflüssigkeit eingebetteten Tonerbildes auf einen Bedruckstoff bei einem elektrophoretischen Druckgerät
DE102011050241A1 (de) 2011-05-10 2012-11-15 OCé PRINTING SYSTEMS GMBH Verfahren zur Kompensation des Passerfehlers von einem Farbbild zugeordneten Farbauszügen zueinander bei einem Mehrfarbendruckgerät
DE102012108187A1 (de) 2012-09-04 2014-03-06 Océ Printing Systems GmbH & Co. KG Verfahren zur Überprüfung einer an einem rotierenden Element angeordneten Reinigungseinheit auf Flüssigkeitsverlust bei einem elektrografischen Druckgerät
DE102013107452A1 (de) 2013-07-15 2015-01-15 Océ Printing Systems GmbH & Co. KG Walze zur Steuerung der Bewegung von elektrisch geladenen Partikeln insbesondere bei einem elektrografischen Druckgerät
EP3169526B1 (fr) * 2014-07-18 2020-06-03 Bobst Mex Sa Groupe d'enduction pour appliquer une substance d'enduction dans une machine d'impression de supports plans
JP6402651B2 (ja) * 2015-03-04 2018-10-10 富士ゼロックス株式会社 液体供給装置、現像装置及び画像形成装置
DE102016101888A1 (de) 2016-02-03 2016-12-01 Océ Holding B.V. Anordnung zur Übertragung von Tonerbildern von einem Ladungsbildträger auf einen Aufzeichnungsträger bei einem elektrofotografischen Druckgerät
KR20180032327A (ko) 2016-09-22 2018-03-30 에스프린팅솔루션 주식회사 전자 종이, 화상형성장치 및 인쇄 제어 방법
CN114083899B (zh) * 2021-11-10 2023-05-23 厦门炫龙包装有限公司 绿色环保印刷工艺及印刷工艺用防堆积机构

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924911A1 (de) 1978-06-22 1980-01-17 Coulter Systems Corp Vorrichtung zum drucken von aus einzelbildern zusammengesetzten bildmustern, insbesondere zur herstellung von farbdrucken, sowie verfahren zum bedrucken eines traegers mit derartigen bildmustern
US4411514A (en) 1979-04-24 1983-10-25 Canon Kabushiki Kaisha Variable magnification electrophotographic copying apparatus
JPS5740268A (en) * 1980-08-22 1982-03-05 Fuji Xerox Co Ltd Ink developing method
JPS59184365A (ja) * 1983-04-04 1984-10-19 Canon Inc 記録装置
JPS6143773A (ja) * 1984-08-07 1986-03-03 Canon Inc 画像形成装置
EP0517700B1 (de) 1990-02-26 1994-07-13 Siemens Nixdorf Informationssysteme Aktiengesellschaft Modular aufgebaute elektrofotografische druckeinrichtung
JPH0619278A (ja) 1992-06-30 1994-01-28 Canon Inc 画像形成装置
JPH06222677A (ja) * 1993-01-25 1994-08-12 Ricoh Co Ltd 湿式現像装置
DE69426393T2 (de) 1993-09-20 2001-04-12 Australia Res Lab Verfahren und vorrichtung zur flüssigentwicklung
EP0756213B1 (en) 1994-02-08 2002-12-04 Research Laboratories of Australia Pty Limited Liquid development type multi-color image formation apparatus
JPH09127842A (ja) * 1995-10-30 1997-05-16 Nippon Steel Corp 静電記録装置
JP3943649B2 (ja) * 1997-04-24 2007-07-11 三菱重工業株式会社 インキ洗浄装置をそなえたフレキソ印刷機及びフレキソ印刷機のインキ交換時の洗浄方法
DE19717727B4 (de) * 1997-04-26 2005-06-23 Man Roland Druckmaschinen Ag Farbwerk für eine Rotationsdruckmaschine
JP2000200001A (ja) * 1998-07-10 2000-07-18 Ricoh Co Ltd 現像剤特性試験方法、液体現像剤、及び、湿式画像形成方法
US6219516B1 (en) * 1999-01-19 2001-04-17 Xerox Corporation Systems and methods for reducing image registration errors
JP2001034073A (ja) * 1999-07-16 2001-02-09 Pfu Ltd 液体トナー現像方式の電子写真装置
JP2001092259A (ja) * 1999-09-24 2001-04-06 Ricoh Co Ltd 現像装置及び画像形成装置
JP2001100534A (ja) * 1999-09-30 2001-04-13 Victor Co Of Japan Ltd 静電潜像の液体現像装置
EP1090756B1 (de) 1999-10-05 2005-01-12 Gallus Ferd. Rüesch Ag Farbkammerrakel
DE29918488U1 (de) 1999-10-20 1999-12-30 Roland Man Druckmasch Bogenrotationsdruckmaschine mit Druckeinheiten für den Mehrfarbendruck und wenigstens einer Beschichtungseinheit
JP2001235945A (ja) * 2000-02-21 2001-08-31 Ricoh Co Ltd 画像形成装置
JP2001305864A (ja) * 2000-04-21 2001-11-02 Pfu Ltd 液体トナーを用いる液体現像電子写真装置
JP2001318537A (ja) * 2000-05-11 2001-11-16 Matsushita Electric Ind Co Ltd 湿式現像装置
DE10027203A1 (de) 2000-05-31 2001-12-20 Oce Printing Systems Gmbh Einrichtung und Verfahren zum Reinigen und zum Regenerieren eines Bildträgers beim elektrografischen Drucken oder Kopieren unter Verwendung flüssiger Farbmittel
JP2002046912A (ja) * 2000-07-28 2002-02-12 Hitachi Koki Co Ltd 印刷装置および印刷方法
JP3984793B2 (ja) * 2001-01-30 2007-10-03 株式会社リコー 現像剤供給装置、及び、湿式画像形成装置
JP2002278300A (ja) * 2001-03-19 2002-09-27 Pfu Ltd 電子写真装置のトナー供給方式
JP3766299B2 (ja) * 2001-08-30 2006-04-12 株式会社Ｐｆｕ 電子写真装置のトナー供給方式
KR100400020B1 (ko) * 2002-02-05 2003-09-29 삼성전자주식회사 비휘발성 잉크 캐리어를 사용하는 습식 전자사진화상형성장치
US7167666B2 (en) * 2003-08-20 2007-01-23 Seiko Epson Corporation Liquid development device, image forming apparatus, and image forming system
US7149459B2 (en) * 2004-11-10 2006-12-12 Seiko Epson Corporation Application roller and image forming apparatus

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WO2005013013A2 (de) 2005-02-10
WO2005013013A3 (de) 2005-05-12
US20070212113A1 (en) 2007-09-13
JP2010152385A (ja) 2010-07-08
US7463851B2 (en) 2008-12-09
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