Patent application number | Description | Published |
20120251145 | RATIO MODULATED PRINTING WITH CHARGE AREA DEVELOPMENT - Methods for printing are provided. In one aspect, the method includes providing a primary imaging member having engine pixel locations with a ratio modulated difference of potentials, establishing a first development difference of potential to form a first net development difference of potential between the first development difference of potential and the engine pixel location and providing a first charged toner such that the second toner develops at the engine pixel location. Establishing a second development difference of potential that is greater than the first difference of potential proximate the engine pixel location such that a determined amount of first toner develops at the engine pixel locations according to a second net development difference of potential. Wherein the range of second toner potentials is such that a determined range of ratios of second toner amounts and the determined first toner amount provide ratio modulated differences of potential. | 10-04-2012 |
20120251146 | RATIO MODULATED PRINTING WITH DISCHARGE AREA DEVELOPMENT - Methods for printing are provided. In one aspect, the method includes providing a primary imaging member having engine pixel locations with a ratio modulated difference of potentials, establishing a first development difference of potential to form a first net development difference of potential between the first development difference of potential and the engine pixel location and providing a first charged toner such that the first toner develops at the engine pixel location according to the first net development difference of potential. Establishing a second development difference of potential that is greater than the first difference of potential proximate the engine pixel location such that a determined amount of second toner develops at the engine pixel locations. Wherein the range of first toner potentials is such that a determined range of ratios of first toner amounts and the determined second toner amount provide ratio modulated differences of potential. | 10-04-2012 |
20130029818 | SLEEVED ROLLER FOR USE IN AN ELECTROSTATOGRAPHIC MACHINE - The present invention is a sleeved roller for use in an electrostatographic machine. The roller includes a cylindrical rigid core member having an outer ceramer surface. A removable sleeve member includes a substrate comprising a polymeric material support layer, wherein the sleeve member surrounds and intimately contacts the outer ceramer surface. The invention provides a low cost sleeved roller, while providing a high friction interference fit to reduce slipping of the sleeve member during operation and thereby providing improved registration performance. | 01-31-2013 |
20130029819 | DOUBLE SLEEVED ROLLER FOR USE IN AN ELECTROSTATOGRAPHIC MACHINE - The present invention is a double-sleeved roller for use in an electrostatographic machine. The roller includes a cylindrical rigid core member, a removable inner sleeve member that surrounds and intimately contacts the rigid core member; and a removable outer sleeve member including a substrate comprising a polymeric material support layer. The inner sleeve member comprises a ceramer outer surface, and the outer sleeve member surrounds and intimately contacts the outer ceramer surface of the inner sleeve member and is removable. The outer sleeve may include a polyethylene terephthalate inner surface that contacts the outer ceramer surface of the inner sleeve member. The inner sleeve can comprise a rigid substrate such as nickel having an outer ceramer surface. Use of an outer sleeve comprising a substrate comprising a polymeric material support layer enables low cost, while the outer ceramer surface of the inner sleeve provides a high friction interference fit to reduce slipping of the outer sleeve member during operation. | 01-31-2013 |
20130076828 | INKJET PRINTING USING LARGE PARTICLES - A method of producing a print on paper includes drying a selected region of the paper to a moisture content not to exceed that of the paper equilibrated to 20% RH. Hydrophilic liquid is deposited in a selected fluid pattern on the selected region of the paper within 15 seconds after the completion of drying. The paper is charged so that a charge pattern of charged and discharged areas is formed on the paper, and the discharged areas correspond to the selected fluid pattern. Charged dry ink having charge of the same sign as the charge in the charged areas is on the paper is deposited onto the paper in a dry ink pattern corresponding to the selected fluid pattern in the selected region. The dry ink is fixed to the paper. | 03-28-2013 |
20130076843 | INKJET PRINTER USING LARGE PARTICLES - A printer includes a dryer, a liquid-deposition unit, a charging member, a development station, and a fixer arranged in that order along the paper path. The dryer dries a selected region of the paper on the transport to a moisture content not to exceed that of the paper equilibrated to 20% RH. The liquid-deposition unit deposits hydrophilic liquid in a selected fluid pattern on the paper within 15 seconds of the completion of drying. The charging member selectively charges the paper so that a charge pattern of charged and discharged areas is formed on the paper and the charged areas have a potential of at least 100 V. The development station deposits dry ink on the charged paper in a dry ink pattern corresponding to the selected fluid pattern. The fixer permanently fixes the dry ink to the paper. | 03-28-2013 |
20130076844 | LARGE-PARTICLE INKJET PRINTING ON SEMIPOROUS PAPER - A print is produced on a semiporous recording medium. The semiporous recording medium is dried to an equilibrated 20% RH. Hydrophilic liquid is deposited on the medium in a selected fluid pattern within 15 seconds after the completion of drying. The recording medium is charged so that a charge pattern of charged and discharged areas is formed on the recording medium and the discharged areas correspond to the fluid pattern. Charged dry ink having charge of the same sign as the charge in the charged areas on the recording medium is deposited on the medium in a pattern corresponding to the selected fluid pattern. The dry ink is at least in part hydrophilic, so the dry ink adheres to the hydrophilic liquid, and at least some of the liquid is drawn into or around the deposited dry ink particles. | 03-28-2013 |
20130076847 | LARGE-PARTICLE SEMIPOROUS-PAPER INKJET PRINTER - A printer for printing on a semiporous recording medium includes a dryer adapted to dry the semiporous recording medium to a moisture content not to exceed that of the recording medium equilibrated to 20% RH. A liquid-deposition unit deposits hydrophilic liquid in a selected fluid pattern on the recording medium within 15 seconds after the completion of drying. A charging member charges the recording medium so that a charge pattern of charged and discharged areas is formed on the recording medium and the charged areas have a potential of at least 100 V. A development station deposits charged dry ink on the medium, the dry ink having charge of the same sign as the charged areas, so that the charged dry ink is deposited on the paper in a dry ink pattern corresponding to the selected fluid pattern. | 03-28-2013 |
20130077998 | ELECTROGRAPHIC PRINTING USING FLUIDIC CHARGE DISSIPATION - A method of electrographically producing a toner image on paper includes drying a selected region of the paper to a moisture content not to exceed that of the paper equilibrated to 20% RH. Selected portions of the selected region of the paper are wetted within 15 seconds after the completion of drying to provide a latent fluid image corresponding to the wetted portions of the paper. A dry area is thereby defined in the selected region outside the latent fluid image. The paper is charged so that the paper in the dry area has a selected potential. Charged dry toner is deposited in the selected region, the toner having charge of the same sign as the selected potential, so that the toner adheres to paper in the area of the latent fluid image. | 03-28-2013 |
20130077999 | ELECTROGRAPHIC PRINTER USING FLUIDIC CHARGE DISSIPATION - Electrographic printing apparatus for producing a toner image on paper includes a dryer adapted to dry a selected region of the paper to a moisture content not to exceed that of the paper equilibrated to 20% RH. A liquid-deposition unit wets selected portions of the selected region of the paper within 15 seconds after the completion of drying to provide a latent fluid image corresponding to the wetted portions of the paper. A dry area is thereby defined in the selected region outside the latent fluid image. A charging member charges the paper so that the paper in the dry area has a selected potential. A development station deposits charged dry toner in the selected region, the toner having charge of the same sign as the selected potential, so that the toner adheres to paper in the area of the latent fluid image. | 03-28-2013 |
20130127149 | DEINKABLE PRINT - A printed article includes a receiver having an image-bearing surface, the image-bearing surface having substantially no human-visible colorant thereon. A pattern of toner is deposited on the image-bearing surface and covers less than 100% of the image-bearing surface. Colorant is absorbed into or adsorbed onto the toner to provide a human-visible image. | 05-23-2013 |
20130127964 | PRODUCING A DEINKABLE PRINT - A method of producing a deinkable print on an image-bearing member includes transferring a toner image onto the image-bearing member to form a continuous or discontinuous toner image layer, wherein toner in the toner image is soluble in a hydrophobic or oliophilic organic solvent. An ink image corresponding to the toner image is printed onto the toner image on the image-bearing member, the ink including colorant in a hydrophilic carrier fluid, so that the colorant is disposed over the toner image layer. The toner image and ink image are fixed to the receiver. The image-bearing member has an unprinted reflection density and has a deinked reflection density at most 0.15 above the unprinted reflection density. | 05-23-2013 |
20130129393 | PRODUCING A DEINKABLE PRINT - A method of printing an image includes transferring a toner image onto an image-bearing side of a receiver to form a continuous or discontinuous toner image layer having a continuous or discontinuous visible surface. An ink image is printed onto the toner visible image, the ink including colorant or a functional component suspended or dissolved in a carrier fluid. As a result, at least 50% of the colorant or the functional component is absorbed into or adsorbed onto the toner. The toner visible image and ink image are then fixed to the receiver. The functional component is selected from the group consisting of a colorant, a humectant, a surfactant, a security material, a fungicide, and a biocide. | 05-23-2013 |
20130130172 | DEINKING A PRINT - A method of deinking an image-bearing member using an organic solvent includes receiving the image-bearing member. The member has thereon a continuous or discontinuous image layer formed of toner particles that do not include colorant, and colorant particles or molecules. The colorant particles or molecules are arranged in a pattern corresponding to the arrangement of the toner particles. The organic solvent is hydrophobic or oliophilic and the colorant is insoluble in the organic solvent. The hydrophobic or oliophilic organic solvent is applied to the image-bearing member, so that a majority of the toner image layer is dissolved off the image-bearing member and the colorant is removed from the image-bearing member. A deinked reflection density of the image-bearing member in a selected test area from which the toner image layer was dissolved is within 0.15 of an imprinted reflection density of the image-bearing member before deinking. | 05-23-2013 |
20130162702 | INKJET PRINTING ON SEMI-POROUS OR NON-ABSORBENT SURFACES - Printing methods are provided. In one method, printing an inkjet image using a liquid hydrophilic inkjet ink onto a surface of a semi-absorbent recording medium generating a toner image having toner particles arranged conforming to the inkjet image and transferring the toner image onto the recording medium where an unabsorbed volume of the inkjet ink is present on the recording medium. The toner particles manage unabsorbed volumes of the inkjet ink to protect the recording medium from image artifacts that can be created by an unabsorbed volume of the inkjet ink on the surface without a liquid management toner image. | 06-27-2013 |
20130162703 | PRINTING INK IMAGE USING POLYMER OR SALT - A method of printing an image on a receiver includes receiving image data for the image. A processor automatically produces data for a polymer pattern and a salt pattern using the image data. A polymer is deposited on the receiver according to the polymer pattern using a polymer-deposition unit. A salt is deposited on the receiver according to the salt pattern using a salt-deposition unit different from the polymer-deposition unit. Liquid ink is deposited on the receiver according to the image data using an inkjet print engine, and at least some of the ink is deposited over the deposited polymer or the deposited salt. | 06-27-2013 |
20130162704 | METHOD FOR PRINTING WITH ADAPTIVE DISTORTION CONTROL - Printing methods are provided. In one method, printing an inkjet image using a liquid hydrophilic inkjet ink onto a surface of a semi-absorbent recording medium generating a toner image having toner particles arranged conforming to the inkjet image and transferring the toner image onto the recording medium where an unabsorbed volume of the inkjet ink is present on the recording medium. The toner particles manage unabsorbed volumes of the inkjet ink to protect the recording medium from image artifacts that can be created by an unabsorbed volume of the inkjet ink on the surface without a liquid management toner image. | 06-27-2013 |
20130162705 | PRINTER WITH ADAPTIVE DISTORTION CONTROL - Printers are provided. In one printer, an inkjet image is printed on a receiver using a hydrophilic ink capturing an image of the first print after a predetermined period of absorption and local areas the receiver that have reached a threshold level of non-uniform distortion and where additional ink remains for absorption are identified. A liquid management toner image is generated that provides toner particles for transfer onto the receiver in the identified areas in register with the inkjet print as non-uniformly distorted; and transferring the liquid management toner image onto the receiver. The liquid management toner image reduces absorption of ink in the receiver in the identified areas control the extent of distortion in the area. | 06-27-2013 |
20130162706 | INKJET PRINTER FOR SEMI-POROUS OR NON-ABSORBENT SURFACES - Inkjet printers are provided, in one aspect, an inkjet printer has an inkjet print engine that prints an image by jetting drops of hydrophilic liquid to form an inkjet image on a surface of at least one of a semi-absorbent recording medium or a non-absorbent recording medium; a transport system to transport the printed surface to a toner printer having a toner print engine to generate a liquid management toner image with toner particles that are at least in part hydrophilic and to transfer the toner image onto the recording medium where an unabsorbed volume of the inkjet ink will be present on the recording medium. A control system causes the inkjet printer to generate the inkjet image on the surface and causes the toner printer to generate a liquid management toner image that provides toner particles to manage an unabsorbed volume of the liquid. | 06-27-2013 |
20130162709 | METHOD FOR PRINTING ON LOCALLY DISTORABLE MEDIUMS - Methods for operating a printing system are provided. In one method, an inkjet image is printed on a receiver using a hydrophilic ink and an image of the receiver is captured after predetermined period of absorption. Local areas of the image of the inkjet print that have reached a threshold level of non-uniform distortion and where additional ink remains for absorption are identified. A distortion estimate is determined for distortion of the receiver at a time when a second image will be printed on the receiver based upon information from the identified areas. A second print image is printed based on the distortion estimate; and, the second image is printed. | 06-27-2013 |
20130162711 | INKJET PRINTER WITH ENHANCED DEINKABILITY - In a system having an inkjet printer and a toner printer, the ink jet printer forms an ink jet image and the toner printer forms a toner image conforming to the inkjet image and transfers the toner image onto the inkjet image. Colorant in the ink is electrostatically attracted to the toner. The toner is fixed. After fixing the colorant attracted to the toner is bound to the toner so that removal of the toner from the receiver also removes any colorant attached to the toner from the receiver. | 06-27-2013 |
20130162715 | PRINTER FOR USE WITH LOCALLY DISTORTABLE MEDIUMS - Printers are provided. One print has an inkjet printer to print an inkjet image on a receiver using a hydrophilic ink, a sensor for capturing an image of the receiver after predetermined period of absorption and a control system and a second printer. The control system identifies local areas of the image of the inkjet print on the that have reached a threshold level of non-uniform distortion and where additional ink remains for absorption, determining a distortion estimate for distortion of the receiver at a time when a second image will be printed on the receiver based upon information from the identified areas and generating a second print image based on the distortion estimate. The second printer prints the second print image. | 06-27-2013 |
20130162741 | INKJET PRINTING METHOD WITH ENHANCED DEINKABILITY - Printing methods are provided. In one method an inkjet image is printed using an ink having a colorant with an electrical charge of a first polarity dispersed in a hydrophilic liquid carrier fluid with an electrical charge of a second polarity that is the opposite polarity of the first polarity. A colorant attracting toner image conforming to the inkjet image is generated using toner particles of the second polarity. The colorant attracting toner image is transferred in registration with an unabsorbed volume of the ink jet image on the receiver. The difference in polarity between the toner particles and the colorant attracts the colorant and the toner particles. The toner particles are fixed to the receiver. After fixing colorant attracted to the toner particles is bound to the toner particles so that removal of the toner from the receiver also removes any colorant attached to the toner from the receiver. | 06-27-2013 |
20130164061 | LIQUID ENHANCED FIXING METHOD - Printing methods are provided. In one method, an inkjet image is printed on a receiver using an inkjet ink having a liquid with a boiling point and a toner image conforming to the ink jet image is generated using toner particles with a glass transition temperature that is below the boiling point and the toner image is transferred into an unabsorbed volume of liquid ink of the inkjet image on the receiver. A first energy is applied to the toner and the liquid sufficient to bring the liquid to the boiling point without bringing a heated surface into contact therewith. The toner particles are heated above the glass transition temperature by the combination of heat from the liquid and heating of the toner particles by the radiant energy without requiring that the receiver is heated to the glass transition temperature of the toner. | 06-27-2013 |
20130164062 | PRINTER WITH LIQUID ENHANCED FIXING SYSTEM - Printers are provided. One printer has an ink jet printer with an inkjet printhead to print an inkjet image on a receiver using an inkjet ink having a liquid with a boiling point a toner print engine to generate a toner image conforming to the ink jet image using toner particles with a glass transition temperature that is below the boiling point and to transfer the toner image into an unabsorbed volume of liquid ink of the inkjet image on the receiver and a fixing system having a first energy source to apply a first energy to the toner and the liquid sufficient to bring the liquid to the boiling point without bringing a heated surface into contact therewith. The toner particles are heated above the glass transition temperature by the combination of heat from the liquid and heating of the toner particles by the first energy. | 06-27-2013 |
20140056616 | ELECTROGRAPHIC PRINTING OF TACTILE IMAGES - A method for forming a tactile printed image on a receiver medium using an electrographic printer, comprising forming a sequence of toner particle images on one or more primary imaging members, the sequence of toner particle images including a plurality of annular shapes having associated inner and outer sizes. The inner and outer sizes of the annular shapes varying in a monotonic sequence, such that when the sequence of toner particle images are transferred in register onto the receiver medium the annular shapes are substantially concentric and overlapping, thereby forming a tactile image feature having a hollow core; which is then fixed to permanently attach the transferred toner particle images to the receiver medium. | 02-27-2014 |
20140056617 | ELECTROGRAPHIC TACTILE IMAGE PRINTING SYSTEM - An electrographic printing system for forming a tactile printed image on a receiver medium, comprising an image processing path, one or more printing modules and a fixing subsystem. The image processing path provides a sequence of image patterns including a plurality of annular shapes having associated inner and outer sizes, the inner and outer sizes of the annular shapes varying in a monotonic sequence. The printing modules are controlled to form a sequence of toner particle images corresponding to the sequence of image patterns, and to sequentially transfer the sequence of toner particle images in register onto the receiver medium such that the annular shapes in the toner particle images overlap to form a tactile image feature having a hollow core. The fixing subsystem is used to permanently attach the transferred toner particle images to the receiver medium. | 02-27-2014 |
20140150284 | ACOUSTIC DRYING SYSTEM WITH INTERSPERSED EXHAUST CHANNELS - An acoustic air impingement drying system is provided for drying a material. An inlet chamber receives air from an airflow source provides air at a supply flow rate. A plurality of acoustic resonant chambers are provided, each having an inlet slot that receives air from the inlet chamber and an outlet slot that directs air onto the material, wherein the acoustic resonant chambers impart acoustic energy to the transiting air, the outlet slots being oriented at an oblique angle relative to the width dimension of the pneumatic transducer unit. A plurality of exhaust air channels interspersed between the outlet slots remove the air directed onto the material by the acoustic resonant chambers. A blower pulls air through the exhaust air channels at an exhaust flow rate. | 06-05-2014 |
20140150285 | ACOUSTIC DRYING SYSTEM WITH PERIPHERAL EXHAUST CHANNEL - An acoustic air impingement drying system is provided for drying a material using a pneumatic transducer unit. An inlet chamber receives air from an airflow source at a supply flow rate. A plurality of acoustic resonant chambers are arranged in a drying zone, each having an inlet slot that receives air from the inlet chamber and an outlet slot that directs air onto the material, the outlet slots being oriented at an oblique angle relative to a width dimension of the pneumatic transducer unit. One or more peripheral exhaust air channels are arranged around the outer boundary of the drying zone for removing the air directed onto the material by the acoustic resonant chambers. A blower pulls air through the exhaust air channels at an exhaust flow rate. | 06-05-2014 |
20140152749 | ACOUSTIC DRYING SYSTEM WITH MATCHED EXHAUST FLOW - An inkjet printing system, comprising: one or more inkjet printheads for printing drops of ink onto a receiver medium, and an acoustic air impingement drying system positioned in proximity to at least one of the inkjet printheads. The acoustic air impingement drying system includes: an airflow source providing a supply flow rate; an acoustic resonant chamber having an inlet slot that receives air from the airflow source and an outlet slot that directs air onto the receiver medium; an exhaust air channel for removing the air directed onto the receiver medium by the acoustic resonant chamber; a blower for pulling air through the exhaust air channel at an exhaust flow rate; and a blower controller that controls the supply flow rate and the exhaust flow rate, wherein the exhaust flow rate is controlled to match the supply flow rate to within 1%, or to exceed the supply flow rate. | 06-05-2014 |
20140152750 | ACOUSTIC DRYING SYSTEM WITH MATCHED EXHAUST FLOW - An inkjet printing system, comprising: one or more inkjet printheads for printing drops of ink onto a receiver medium, and an acoustic air impingement drying system positioned in proximity to at least one of the inkjet printheads. The acoustic air impingement drying system includes: an airflow source providing a supply flow rate; an acoustic resonant chamber having an inlet slot that receives air from the airflow source and an outlet slot that directs air onto the receiver medium; an exhaust air channel for removing the air directed onto the receiver medium by the acoustic resonant chamber; a blower for pulling air through the exhaust air channel at an exhaust flow rate; and a blower controller that controls the supply flow rate and the exhaust flow rate, wherein the exhaust flow rate is controlled to match the supply flow rate to within 1%, or to exceed the supply flow rate. | 06-05-2014 |
20140319722 | DIGITAL EMBOSSING AND CREASING BEFORE PRINTING - A method of printing and embossing a receiver is disclosed. The method includes depositing an embossing pattern of embossing particles on the receiver, the embossing pattern having an embossing-pattern thickness corresponding to a fixed stack height of at least 30% of the thickness of the receiver, wherein the embossing particles having average diameters greater than the average diameters of the toner particles of the image toner; pressing the receiver between a hard nip roller and a compliant nip roller, the pressure selected so that with a large enough load so that the embossing pattern permanently deforms the receiver; depositing a pattern of image toner on a first side of the receiver, the image toner including toner particles; and fixing the pattern of image toner onto the receiver. | 10-30-2014 |
20140319739 | DIGITAL EMBOSSING AND CREASING - A method of printing and embossing a receiver having first and second sides and having a thickness is disclosed. The method includes depositing a pattern of image toner on a first side of a receiver, the image toner including toner particles; fixing the pattern of image toner onto the receiver; depositing an embossing pattern of embossing particles on a side of the receiver, the embossing pattern having an embossing-pattern thickness corresponding to a fixed stack height of at least 30% of the thickness of the receiver, wherein the embossing particles have average diameters greater than the average diameters of the toner particles of the image toner; and pressing the receiver between a hard nip roller and a compliant nip roller, the pressure being selected so that the embossing pattern permanently deforms the receiver. | 10-30-2014 |
20140322380 | DIGITAL EMBOSSING DEVICE - A device for embossing a receiver is disclosed. The device includes a means for depositing an embossing pattern of embossing particles means to press the receiver of receiver between a hard nip roller and a compliant nip roller, the pressure selected so that with a large enough load so that the embossing pattern permanently deforms the receiver; wherein, the embossing pattern consists of a digitally created pattern of embossing toner particles having an embossing-pattern thickness corresponding to a fixed stack height of at least 30% of the thickness of the receiver. | 10-30-2014 |
20140322645 | DIGITAL EMBOSSING AND CREASING SHEET - A method of printing and embossing a receiver is disclosed. The method includes depositing a pattern of image toner on a side of an image bearing receiver, the image toner including toner particles; fixing the pattern of image toner onto the receiver; depositing an embossing pattern of embossing particles on a face of an embossing sheet or web, the embossing pattern having an embossing-pattern thickness corresponding to a fixed stack height of at least 30% of the thickness of the receiver. The embossed particles have an average diameter greater than diameters of the toner particles. Pressing the image bearing receiver and the embossing sheet or web together in a compliant nip, the first side of the receiver facing the face of the embossing sheet or web, the pressure selected so that with a large enough load so that the embossing pattern permanently deforms the receiver. | 10-30-2014 |