EP0401208A1 - Process and device for printing by inking a latent image. - Google Patents
Process and device for printing by inking a latent image.Info
- Publication number
- EP0401208A1 EP0401208A1 EP88901793A EP88901793A EP0401208A1 EP 0401208 A1 EP0401208 A1 EP 0401208A1 EP 88901793 A EP88901793 A EP 88901793A EP 88901793 A EP88901793 A EP 88901793A EP 0401208 A1 EP0401208 A1 EP 0401208A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recording medium
- color
- character image
- printing
- vapor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 23
- 230000005494 condensation Effects 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 43
- 238000009833 condensation Methods 0.000 claims description 18
- 238000010023 transfer printing Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- 238000002372 labelling Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 238000000889 atomisation Methods 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 13
- 238000001816 cooling Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004040 coloring Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
Definitions
- the invention relates to a method and a device for printing by coloring a latent thermal image.
- a latent thermal image e.g. generated with the help of high-energy modulated radiation.
- the image is then developed by color vapor condensation or by direct color transfer and then transferred to a paper web or paper sheets in a transfer printing station.
- the invention can be used both for single sheet printers and printers with continuous paper at high speed.
- Non-mechanical printing processes that are based on the electrophotographic or magnetographic principle are generally known and have been used successfully.
- Such a printing process which works on the principle of electrophotography, is e.g. known from US Pat. No. 4,311,723.
- a latent charge image is generated on an electrostatically charged photoconductive material, be it a photoconductor drum or a photoconductor belt, by selective discharge using an imagewise modulated light source.
- This charge image is then colored in a developer station by electrically charged color particles (toner) and then in a transfer station on a recording medium, e.g. transfer a continuous paper tape or a single sheet.
- Such a charge pattern is developed either by applying dry toner or liquid toner.
- the charge of the color particles is generated triboelectrically, by friction on so-called carrier particles, usually iron, steel or ferrite, which also ensure transport in the vicinity of the charge image due to their magnetic adhesion to a rotating magnetic roller.
- carrier particles usually iron, steel or ferrite
- the color particles can also be charged by other methods, e.g. Corona or generated by the polarization of the toner particles in the electric field of the latent charge image itself.
- Corona e.g. Corona
- liquid processes e.g. by chemical charge separation electrically charged toner particles in an insulating organic carrier liquid, e.g. Isopar (trademark of Exxon).
- an insulating organic carrier liquid e.g. Isopar (trademark of Exxon).
- the coloring particles can be much smaller since undesirable adhesive forces are better balanced.
- the required particle size creates a certain granularity of the image with negative effects on very fine characters and the transition area between image patterns and background (edge sharpness).
- local electrical development fields in these transition areas result in a particularly high particle application, which can lead to visible image disturbances (over-toning) and consequently to poorer adhesion of the toner to the recording medium.
- Disadvantages of liquid development processes are the discharge of the carrier liquid from the printing device together with the recording medium and the very high sensitivity of the particle application to fluctuations in the toner concentration in the carrier liquid.
- the magnetographic principle is based on the generation of a latent magnetic image on a permanently magnetizable carrier medium. A certain amount of iron allows the one-component toner powder to adhere to the imagewise agglomerated carrier medium. Transfer printing takes place with pressure or magnetic field support.
- the granularity of the toner powder is disadvantageous.
- the iron / ferrite addition also complicates the production of brilliant colors.
- the object of the invention is to provide a non-mechanical printing method and a printing device which makes it possible to produce a print image of high resolution and high color saturation on a record carrier at a high printing speed, be it continuous paper or single sheets.
- a latent thermal character image is generated on the record carrier on a record carrier (information carrier) which is movably guided in a printer by means of a character-dependent controlled thermal labeling device, which can be, for example, a laser.
- a carrier liquid containing color pigments or dye, preferably water, is condensed on the information carrier from the vapor phase and the print pattern is generated in the form of pixels by the presence or absence of condensate. This is done by the fact that image areas which are colored by condensation at a temperature below the dew point of the colorant vapor and which areas which are not to be colored according to the image have a temperature above the dew point of the colorant vapor.
- the ink layer thus produced is then transferred to single paper or continuous paper in a transfer printing station.
- Vapor particles completely avoid granularity of the image.
- an oleophilic or hydrophilic molecular liquid film is first applied to a recording medium.
- a latent thermal character image is then generated on the recording medium by selective evaporation of the liquid film.
- This latent character image is then developed in a developer station by condensation of an ink carrier vapor or by direct ink transfer.
- the developing drawing image is then transferred to single sheets or continuous paper in a transfer printing station.
- the actual color on the recording medium can be either by condensation or in a simple manner by in Printing technology accomplish usual ink rollers.
- the ink transfer by inking rollers is particularly simple and enables the entire printing device to be constructed cost-effectively.
- a recording medium for the latent thermal character image it is advantageous if it consists of an elastic composite material which has a surface layer with a high thermal conductivity perpendicular to the surface and a low thermal conductivity in the surface direction and if the surface layer has a heat-insulating support layer is arranged.
- a composite material of this type can produce a latent thermal character image that is stable over a longer period of time without the latent thermal character image flowing away through heat transfer. Furthermore, the heat of condensation liberated during the condensation is reliably dissipated from the image surface, thereby enabling safe condensation.
- the character image generated by condensation can also be colored separately with the aid of a paint atomizing device.
- the latent thermal character image is colored with the aid of a condensation device, it is furthermore advantageous to guide the recording medium through a development space through which color carrier steam flows and which is connected to a color steam circulation system.
- the excess color carrier steam discharged from the development space is condensed and fed again to an evaporator device which generates the color steam.
- paper is understood to mean a recording medium made both of paper and of any other printable material. This material can also be a textile band or a plastic band, for example.
- FIG. 1 shows a schematic sectional illustration of a printing device with a color vapor condensation developer device.
- FIG. 2 shows a schematic sectional illustration of a record carrier structure made of composite material
- FIG. 3 shows a schematic sectional illustration of a printing device with a moistening device with which an oleophilic or hydrophilic molecular liquid film is applied to the recording medium and is carried out during transfer printing with the aid of an ink roller.
- a printing device shown here only schematically contains a tape-shaped recording medium (intermediate carrier 10) made of composite material, which is driven by electric motors and is guided over deflection rollers. However, a correspondingly dimensioned roller is also possible.
- the record carrier (intermediate carrier 10) is designed as an endlessly revolving band and consists of an elastic composite material, the structure of which will be described later. The various units of the printer are grouped around this record carrier.
- a cooling device A with which the recording medium is brought to a defined temperature essentially consist of a cooling device A with which the recording medium is brought to a defined temperature; a thematic labeling device B for generating a latent thermal drawing image; a developer device C for coloring the latent thermal character image; a transfer printing device D for transferring the colored latent thermal drawing image onto a paper web and a cleaning device E which cleans the remnants of the recording medium 10 from ink residues.
- a cooling device A with which the recording medium is brought to a defined temperature essentially consist of a cooling device A with which the recording medium is brought to a defined temperature; a thematic labeling device B for generating a latent thermal drawing image; a developer device C for coloring the latent thermal character image; a transfer printing device D for transferring the colored latent thermal drawing image onto a paper web and a cleaning device E which cleans the remnants of the recording medium 10 from ink residues.
- the intermediate carrier moved in the printer with the aid of deflection rollers 11 driven by an electric motor is brought to a uniform temperature by means of the cooling device A.
- this temperature is preferably between 10 and 15 ° C. between 0 and 20 ° C.
- the cooling device consists of one to three cooled pressure roller pairs 13, which ensure a uniform recording medium temperature. However, the cooling is also contact-free e.g. possible through an air flow.
- the image areas not to be colored are heated to a temperature between 60 to 120 ° C., preferably 80 to 100 ° C., by means of a thermal inscription device.
- a thermal inscription device For labeling, i.e. The local heating of the areas not to be colored in terms of image is suitable for high-energy electromagnetic radiation which is absorbed as completely as possible by the material of the strip.
- This can e.g. can be provided by C02 waveguide lasers or high-temperature lamps.
- laser use e.g. uses the deflection and focusing optics known from laser printers to generate the image pattern, as used e.g. in U.S. Patent 4,311,723.
- a PLZT switching optics makes sense, the structure of which can be found in DE-OS 36 23 487.
- the inscription device can also consist of laser diode arrays, microwave elements or pin electrode arrays.
- thermo character image with the aid of a contact from Peltier elements which rest on the recording medium 10 and selectively cool or heat it depending on the character in accordance with the principle customary in thermal transfer processes.
- the latent thermal drawing image imprinted on the recording medium 10 is developed within the developing device in that color steam is guided past the recording medium 10 in the opposite direction.
- the developing device has a closed color steam circulation system. This consists of a liquid vapor container 14 with a heating device 15 for evaporating the color liquid 16 into a temperature-controlled steam buffer space 17.
- the color steam flows under the action of a radial fan 18 into a development space 19 through which the intermediate carrier 10 is guided in a vapor-tight manner.
- One side wall of the development space is formed by the band-shaped intermediate carrier 10.
- the ink vapor flowing into the development space 19 is kept at a temperature of approximately 5 ° below the temperature of the non-image areas of the ink-thermal character image on the recording medium 10 in order to avoid color condensation in these areas.
- the amount of ink applied to the recording medium is mainly dependent on the relative speed between the tape and the steam flow, on the temperature difference between the steam and image area, on the thermal capacity of the tape and on the thermal conductivity of the tape and liquid.
- the image can be produced using either the positive or the negative method, which means that the characters consist either of the non-inked parts or of the inked parts of the ink-thermal character image.
- the paint is applied in color powder atomization only after the condensation of the carrier liquid.
- another color powder atomizer follows the actual development device. direction.
- the structure of this color powder atomization device corresponds to that of the usual color powder atomization systems known from powder coating technology.
- the transfer of the colored thermal drawing image takes place within the transfer printing station D.
- the continuous paper 26 or the textile tape is continuously guided past a deflecting roller 27 at the speed of the intermediate carrier 10 with slight pressure.
- both continuous paper and individually transported paper sheets, or e.g. Textiles with appropriate absorbency When water is used as the carrier liquid, both continuous paper and individually transported paper sheets, or e.g. Textiles with appropriate absorbency. If suitable dye liquids are used, however, plastics and metal foils can also be printed.
- the intermediate carrier 10 is cleaned after transfer printing in the cleaning device E by means of a scraper blade 28 and a cleaning brush 29, at the same time the intermediate carrier 10 is rinsed with carrier liquid.
- the cleaning and the cooling of the intermediate carrier 10 to a uniform temperature can be combined, whereby in an embodiment of the invention (not shown here) the strip is immersed in a bath of carrier liquid brought to the desired preparation temperature during the cleaning.
- an elastic composite material with a high thermal conductivity perpendicular to the surface and a low thermal conductivity in the surface direction.
- This thermal conductivity can be generated, for example, by applying a surface layer 31 with a layer thickness between 30 to 300 ⁇ m, preferably 70 to 130 ⁇ m, on a heat-insulating plastic carrier material, for example made of Mylar, with a thickness of 100 to 500 ⁇ m.
- the surface layer 31 can contain, for example, a large number of thin fibers made of metal or other thermally conductive materials. These fibers, which run perpendicular to the surface layer 31, are embedded in appropriate heat-insulating plastic, for example made of Mylar.
- a molecular liquid film made of an oleophilic or hydrophilic liquid is applied to the intermediate carrier with the aid of a liquid application device 33.
- This liquid application device can consist of a container 34 which holds the liquid 35 and which has at its lower end a roller 36 which transfers the liquid to the intermediate carrier.
- the oleophilic or hydrophilic molecular liquid film is then selectively evaporated via the thermal inscription device already described and a latent character image is thereby generated in the liquid film.
- the latent character image is now developed either with the aid of a color vapor condensation development device according to FIG. 1 or in an advantageous manner by applying color by means of an ink roller 37 with an associated storage container 38.
- the color used can either be watery or oily.
- the color is only recorded in accordance with the image pattern.
- the colored character image is then transferred to paper 26 in the transfer printing station in the usual way.
- the drawing image is first generated on an intermediate carrier 10, which consists of an endless belt.
- an intermediate carrier 10 which consists of an endless belt.
- the recording medium used could have a structural structure according to FIG. 1.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Electronic Switches (AREA)
- Wet Developing In Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
Dispositif d'impression comprenant un dispositif de contrôle de la température (A), avec lequel un support (10) guidé par un entraînement à moteur à travers le dispositif d'impression est réglé de manière sensiblement uniforme à une température prédéterminée, ainsi qu'un dispositif de marquage thermique (B) produisant une image virtuelle sur le support (10) par l'action d'un apport de chaleur commandé localement en fonction du marquage et un dispositif de développement (C) où l'image virtuelle est développée par condensation d'encre vaporisée ou par encrage.Printing device comprising a temperature control device (A), with which a support (10) guided by a motor drive through the printing device is adjusted in a substantially uniform manner to a predetermined temperature, as well as a thermal marking device (B) producing a virtual image on the support (10) by the action of a locally controlled supply of heat according to the marking and a developing device (C) where the virtual image is developed by condensation of ink spray or inking.
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE1988/000099 WO1989008286A1 (en) | 1988-02-26 | 1988-02-26 | Process and device for printing by inking a latent thermal image |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0401208A1 true EP0401208A1 (en) | 1990-12-12 |
EP0401208B1 EP0401208B1 (en) | 1992-05-20 |
Family
ID=6819330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88901793A Expired - Lifetime EP0401208B1 (en) | 1988-02-26 | 1988-02-26 | Process and device for printing by inking a latent image |
Country Status (5)
Country | Link |
---|---|
US (1) | US5067404A (en) |
EP (1) | EP0401208B1 (en) |
JP (1) | JPH03505307A (en) |
DE (1) | DE3871398D1 (en) |
WO (1) | WO1989008286A1 (en) |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1992007716A1 (en) * | 1990-11-01 | 1992-05-14 | Landsman Robert M | Printing press |
US5797329A (en) * | 1995-05-16 | 1998-08-25 | Dataproducts Corporation | Hot melt ink printer and method printing |
US5737674A (en) * | 1995-11-20 | 1998-04-07 | Minnesota Mining And Manufacturing Company | Vapor control system for and a liquid electrographic system |
DE19602328A1 (en) * | 1996-01-24 | 1997-07-31 | Roland Man Druckmasch | Process for imaging an erasable printing form |
US5811792A (en) * | 1997-01-02 | 1998-09-22 | Wisconsin Label Corporation | Method and apparatus for accessing contents of envelopes and other similarly concealed information |
WO1998032608A1 (en) | 1997-01-27 | 1998-07-30 | Oce Printing Systems Gmbh | Method and device for printing on a carrier material using a structured ice layer |
US6473220B1 (en) * | 1998-01-22 | 2002-10-29 | Trivium Technologies, Inc. | Film having transmissive and reflective properties |
DE10063987A1 (en) | 2000-12-21 | 2002-07-18 | Oce Printing Systems Gmbh | Device and method for cleaning a print carrier before each print cycle |
DE10206944A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, the thickness of the dampening solution layer being measured and reduced |
DE10206936A1 (en) * | 2002-02-19 | 2003-09-11 | Oce Printing Systems Gmbh | Digital printing process and printing device with a cup-shaped print carrier |
DE10206942A1 (en) * | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, using controlled radiation valves for structuring |
DE10206937A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, a wetting-promoting substance having a molecular layer thickness being applied before the application of a dampening solution |
DE10206938A1 (en) * | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, wherein a hydrophilic layer is produced and structured |
DE10206946A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, wherein the print carrier is hydrophilized by free ions |
US7345824B2 (en) | 2002-03-26 | 2008-03-18 | Trivium Technologies, Inc. | Light collimating device |
US7595934B2 (en) | 2002-03-26 | 2009-09-29 | Brilliant Film Llc | Integrated sub-assembly having a light collimating or transflecting device |
TW200506446A (en) * | 2003-05-20 | 2005-02-16 | Trivium Technologies Inc | Devices for use in non-emissive displays |
RU2342894C2 (en) * | 2004-04-23 | 2009-01-10 | Мацушита Электрик Уорк, Лтд. | Fan heater with electrostatic water spray device |
WO2009108896A1 (en) | 2008-02-27 | 2009-09-03 | Brilliant Film, Llc | Concentrators for solar power generating systems |
US20120274914A1 (en) | 2011-04-27 | 2012-11-01 | Palo Alto Research Center Incorporated | Variable Data Lithography System for Applying Multi-Component Images and Systems Therefor |
US8991310B2 (en) | 2011-04-27 | 2015-03-31 | Palo Alto Research Center Incorporated | System for direct application of dampening fluid for a variable data lithographic apparatus |
US9021948B2 (en) | 2011-04-27 | 2015-05-05 | Xerox Corporation | Environmental control subsystem for a variable data lithographic apparatus |
US8347787B1 (en) | 2011-08-05 | 2013-01-08 | Palo Alto Research Center Incorporated | Variable data lithography apparatus employing a thermal printhead subsystem |
US9021949B2 (en) | 2012-02-06 | 2015-05-05 | Palo Alto Research Center Incorporated | Dampening fluid recovery in a variable data lithography system |
US8950322B2 (en) | 2012-03-21 | 2015-02-10 | Xerox Corporation | Evaporative systems and methods for dampening fluid control in a digital lithographic system |
US9032874B2 (en) | 2012-03-21 | 2015-05-19 | Xerox Corporation | Dampening fluid deposition by condensation in a digital lithographic system |
US9529307B2 (en) | 2012-07-12 | 2016-12-27 | Palo Alto Research Center Incorporated | Imaging system for patterning of an image definition material by electro-wetting and methods therefor |
US9316993B2 (en) | 2012-07-12 | 2016-04-19 | Xerox Corporation | Electrophotographic patterning of an image definition material |
US8833254B2 (en) | 2012-07-12 | 2014-09-16 | Xerox Corporation | Imaging system with electrophotographic patterning of an image definition material and methods therefor |
US8586277B1 (en) | 2012-07-12 | 2013-11-19 | Palo Alto Research Center Incorporated | Patterning of an image definition material by electro-wetting |
US9639050B2 (en) | 2012-07-12 | 2017-05-02 | Xerox Corporation | Electrophotographic patterning of an image definition material |
US9316994B2 (en) | 2012-07-12 | 2016-04-19 | Xerox Corporation | Imaging system with electrophotographic patterning of an image definition material and methods therefor |
US9327487B2 (en) | 2012-08-31 | 2016-05-03 | Xerox Corporation | Variable lithographic printing process |
US9956801B2 (en) | 2012-08-31 | 2018-05-01 | Xerox Corporation | Printing plates doped with release oil |
US9592698B2 (en) | 2012-08-31 | 2017-03-14 | Xerox Corporation | Imaging member for offset printing applications |
US9567486B2 (en) | 2012-08-31 | 2017-02-14 | Xerox Corporation | Imaging member for offset printing applications |
US9616654B2 (en) | 2012-08-31 | 2017-04-11 | Xerox Corporation | Imaging member for offset printing applications |
US9561677B2 (en) | 2012-08-31 | 2017-02-07 | Xerox Corporation | Imaging member for offset printing applications |
US8919252B2 (en) | 2012-08-31 | 2014-12-30 | Xerox Corporation | Methods and systems for ink-based digital printing with multi-component, multi-functional fountain solution |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3128198A (en) * | 1961-06-21 | 1964-04-07 | Eastman Kodak Co | Thermoxerography |
DE1252531B (en) * | 1961-10-02 | |||
US3190200A (en) * | 1963-03-05 | 1965-06-22 | Lumoprint Zindler Kg | Apparatus for the reproduction of copies by distillation transfer |
US3446184A (en) * | 1964-10-26 | 1969-05-27 | Minnesota Mining & Mfg | Apparatus for powder development of liquid latent images |
GB1160221A (en) * | 1965-05-17 | 1969-08-06 | Agfa Gevaert Nv | Photothermographic Materials and Processes |
DE2043140C3 (en) * | 1970-08-31 | 1981-06-19 | Agfa-Gevaert Ag, 5090 Leverkusen | Method for producing a planographic printing plate and device for carrying out the method |
DE2835284C2 (en) * | 1978-08-11 | 1981-09-24 | Siemens AG, 1000 Berlin und 8000 München | Solvent used in the fuser of a printer or copier |
US4718340A (en) * | 1982-08-09 | 1988-01-12 | Milliken Research Corporation | Printing method |
US4514744A (en) * | 1982-09-24 | 1985-04-30 | Fuji Xerox Co., Ltd. | Electrostatic copying device employing thermally fluidizable medium on photosensitive belt |
JPH01192554A (en) * | 1988-01-29 | 1989-08-02 | Oki Electric Ind Co Ltd | Printer |
-
1988
- 1988-02-26 DE DE8888901793T patent/DE3871398D1/en not_active Expired - Lifetime
- 1988-02-26 WO PCT/DE1988/000099 patent/WO1989008286A1/en active IP Right Grant
- 1988-02-26 US US07/555,406 patent/US5067404A/en not_active Expired - Lifetime
- 1988-02-26 JP JP88501801A patent/JPH03505307A/en active Pending
- 1988-02-26 EP EP88901793A patent/EP0401208B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8908286A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5067404A (en) | 1991-11-26 |
JPH03505307A (en) | 1991-11-21 |
EP0401208B1 (en) | 1992-05-20 |
DE3871398D1 (en) | 1992-06-25 |
WO1989008286A1 (en) | 1989-09-08 |
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