Patent application number | Description | Published |
20120201585 | APPARATUS AND METHODS FOR DELIVERY OF A FUNCTIONAL MATERIAL TO AN IMAGE FORMING MEMBER - The presently disclosed embodiments relate generally to an image forming apparatus comprising: a) an imaging member, and b) a delivery member in contact with the surface of the imaging member, wherein the delivery member has a surface layer comprised of an elastic material impregnated with a functional healing material, and the functional healing material is transferred onto the imaging member by diffusion through the elastic material to the surface of the imaging member. Embodiments also pertain to an improved electrophotographic imaging member comprising a very thin outer layer on the imaging member surface, where the outer layer comprises functional healing materials that act as a lubricant and or a barrier against moisture and/or surface contaminants. The improved imaging member exhibits improved xerographic performance, such as reduced friction and deletions in high humidity conditions. | 08-09-2012 |
20130017477 | ELECTROSTATIC IMAGING MEMBER AND METHODS FOR USING THE SAMEAANM McGuire; GregoryAACI OakvilleAACO CAAAGP McGuire; Gregory Oakville CAAANM Liu; YuAACI MississaugaAACO CAAAGP Liu; Yu Mississauga CAAANM Klenkler; Richard A.AACI OakvilleAACO CAAAGP Klenkler; Richard A. Oakville CA - Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image through charge acceptance control and without the need for conventional post charging photodischarge, eliminating process steps and avoiding limitations in system speed due to the transit time of charge carriers after light exposure. | 01-17-2013 |
20130028636 | APPARATUS AND METHODS FOR DELIVERY OF A FUNCTIONAL MATERIAL TO AN IMAGE FORMING MEMBER - The presently disclosed embodiments relate generally to an image forming apparatus comprising: a) an imaging member, b) a bias charging roller in contact with the surface of the imaging member, and c) a delivery unit in contact with the surface of the bias charge roller, wherein the delivery unit is fabricated as a polymer matrix impregnated with functional materials, such that the functional material is transferred onto the imaging member from the delivery unit via the bias charging roller. Embodiments also pertain to an improved electrophotographic imaging member comprising a very thin outer layer on the imaging member surface, where the outer layer comprises functional materials, such as paraffin, that act as a lubricant and or a barrier against moisture and/or surface contaminants. The improved imaging member exhibits improved xerographic performance, such as reduced friction and deletions in high humidity conditions. | 01-31-2013 |
20130028637 | COMPOSITION FOR USE IN AN APPARATUS FOR DELIVERY OF A FUNCTIONAL MATERIAL TO AN IMAGE FORMING MEMBER - The presently disclosed embodiments relate generally to an image forming apparatus comprising a delivery member in contact with either the surface of an imaging member or in contact with the surface of the bias charge roller, wherein the delivery member is fabricated as a polymer matrix impregnated with functional materials, such that the functional material is transferred onto the imaging member or bias charge roller from the delivery member. Embodiments also pertain to an improved electrophotographic imaging member comprising a very thin outer layer on the imaging member surface, where the outer layer comprises functional materials, such as paraffin, that act as a lubricant and/or a barrier against moisture and/or surface contaminants. The improved imaging member exhibits improved xerographic performance, such as reduced torque, reduced friction, and deletions in high humidity conditions. | 01-31-2013 |
20130101327 | DELIVERY APPARATUS AND METHOD - There is described a delivery member for use in an image forming apparatus. The delivery member includes a support member, an inner layer comprising a elastomeric matrix and a functional material dispersed therein, the inner layer disposed on the support member and an outer layer disposed on the inner layer. A method for manufacturing the delivery member and its function are described. | 04-25-2013 |
20130108312 | APPARATUS AND METHODS FOR DELIVERY OF A FUNCTIONAL MATERIAL TO AN IMAGE FORMING MEMBER | 05-02-2013 |
20130156474 | DELIVERY APPARATUS - There is described a delivery member for use in an image forming apparatus. The delivery member comprises a support member and a layer comprising a elastomeric matrix disposed on the support member. The elastomeric matrix has dispersed therein a mixture of paraffin oil and 2,6-di-tert-butyl-4-methyl phenol. | 06-20-2013 |
20130189013 | DELIVERY APPARATUS - There is described a delivery member for use in an image forming apparatus. The delivery member includes a cylindrical support member and an outer layer. The outer layer comprises an outer surface. The outer surface comprises a first surface section and a second surface section. The first surface section comprises an elastomeric matrix having a functional material dispersed therein and the second surface section comprises a cleaning material. | 07-25-2013 |
20130251432 | DELIVERY APPARATUS - There is described a delivery member for use in an image forming apparatus. The delivery member includes a support member and a first layer comprising an elastomeric matrix, a porous material and a functional material dispersed therein. The first is layer disposed on the support member. | 09-26-2013 |
20130259551 | DELIVERY APPARATUS - There is described an applicator for use in an image forming apparatus. The applicator comprises a blade applicator comprising an elastomeric matrix and a functional material dispersed therein. The applicator blade is positioned in a trailing position with respect to a surface and wherein the functional material diffuses from the elastomeric matrix to the surface. | 10-03-2013 |
20130280647 | CROSS-LINKED CHARGE TRANSPORT MATERIALS MADE BY LOW ENERGY HYDROGEN BOMBARDMENT - This application discloses a photoreceptor comprising a surface layer that is comprised of an organic composition cured by neutral molecular hydrogen bombardment. Methods for forming a photoreceptor having a cured surface are disclosed. | 10-24-2013 |
20130288168 | IMAGING MEMBER AND METHOD OF MAKING AN IMAGING MEMBER - Imaging members having a support, an imaging layer disposed on the support, an outer layer disposed on the imaging layer and fluoropolymer particles imbedded in an outer surface of the outer layer. Image forming apparatuses having such imaging members. Processes for preparing an imaging member for an electrophotographic apparatus, the process involving coating an imaging layer with an outer layer formulation. The imaging layer can be disposed on a support. The outer layer formulation can be dried to form an outer layer disposed on the imaging layer and has an outer surface. Fluoropolymer particles are applied to the outer layer. | 10-31-2013 |
20130343782 | DELIVERY APPARATUS - There is described an applicator for use in an image forming apparatus. The applicator includes an applicator comprising an elastomeric matrix and a functional material dispersed therein. The applicator includes an actuator for moving the applicator between a first position having the applicator in contact with a surface, and a second position. The actuator moves the applicator from the first position to the second position at a frequency of from about 10 | 12-26-2013 |
20140037337 | BIAS CHARGE ROLLER AND APPARATUS INCORPORATING THE BIAS CHARGE ROLLER - A bias charge roller includes an electrically conductive core. An outer layer is axially supported on the core. The outer layer is either conductive or semi-conductive. The bias charge roller further includes a continuous raised pattern on the outer surface of the outer layer. The continuous raised pattern is configured to contact a charge-retentive surface of an electrophotographic imaging member so as to charge the charge-retentive surface. The bias charge roller can be employed in an image forming apparatus. | 02-06-2014 |
20140064812 | BOWED AND NON-PARALLEL ROLLERS FORMING NIP - A pair of opposing rollers comprises a first roller and a second roller contacting the first roller to form a nip between the rollers through which print media passes. Because of surface irregularities in the rollers, the nip can have one or more unintended gaps at locations where the surface of the first roller separates from the surface second roller. Further, a frame holds the first roller and the second roller. A manual or automatic axis adjuster is operatively connected to the controller and the first roller. The axis adjuster changes the angle of the axis (a first axis) of the first roller relative to the axis (a second axis) of the second roller based on the gap to position the first axis in a position other than parallel to the second axis. Changing the angle of the first axis relative to the second axis reduces or eliminates the gap. | 03-06-2014 |
20140096629 | ELASTOMERIC PARALLEL STAGE WITH FLEXURAL HINGES TO PROVIDE MULTI-DEGREE-OF-FREEDOM SENSITIVITY OF AN AERODYNAMICALLY FLOATED PROBE HEAD TO DISTURBANCE IN 3D SPACE - A method and structure for a device including a non-contact gap control device for maintaining a distance between surfaces can include a pliable platform, a frame to which the pliable platform is secured, an aerodynamic floating (AF) head attached to the pliable platform and a probe for measuring, testing, and/or characterizing a substrate adjacent to the AF head. A pressurized gas source can be coupled to the AF head, such that a pressurized gas is ejected onto the substrate to maintain a distance between the substrate and the AF head during measurement. While the frame can be held immobile, the pliable platform can react in response to irregularities in the substrate to maintain a generally constant distance between the AF head and the substrate. | 04-10-2014 |
20140141361 | Surface Control Apparatuses Reducing Print Defects and Methods of Using Same - Surface control apparatuses including an imaging member having a charge retentive surface for developing an electrostatic latent image thereon. The imaging member including a substrate, a photoconductive layer disposed on the substrate, and a surface control (SC) layer disposed on the outer surface of the imaging member. Image forming apparatuses having such surface control apparatuses installed and methods of reducing print defects using such image forming apparatuses. | 05-22-2014 |
20140147163 | METHOD FOR BIAS MEMBER CHARGING A PHOTORECEPTOR - A bias charge member is pulsed into contact with a photoreceptor at high frequency as a mean to reduce contamination and wearing on both the bias charge member and photoreceptor. | 05-29-2014 |
20140147786 | PREPARATION OF POLYESTER LATEX EMULSIFICATION BY DIRECT STEAM INJECTION - A method for preparing latex emulsion compositions uses a steam-driven emulsification process, and a method for preparing a toner using the latex emulsion compositions. The method includes contacting a resin with an organic solvent and optionally a neutralization agent; and applying steam or heated water vapor to contact the resin to prepare a latex emulsion. An apparatus can perform the method. | 05-29-2014 |
20140200298 | TONER MAKING PROCESS - Processes for making toners, and in particular, emulsion aggregation (EA) toners. These toners exhibit a low melt temperature while simultaneously exhibiting excellent relative humidity sensitivity regarding charging properties. In embodiments, the process comprises the preparation of the latex emulsion comprising high ratio resin compositions by injection of steam and neutralization agent vapors into the latex emulsion. | 07-17-2014 |
20140219679 | IMAGE FORMING APPARATUS - There is described an image forming apparatus that includes an imaging member having a charge retentive-surface for developing an electrostatic latent image thereon. The imaging member includes a substrate and photoconductive member disposed on the substrate. The image forming apparatus includes a charging unit for applying an electrostatic charge on the imaging member to a predetermined electric potential wherein the charging unit is spaced from the photoconductive member a distance of from about 3 μm to about 300 μm. The image forming apparatus includes a delivery member in contact with the surface of the photoconductive member. The delivery member includes an elastomeric matrix impregnated with a liquid lubricant wherein the delivery member applies a layer of liquid lubricant to the surface of the photoconductor wherein in the layer has a thickness of from about 1 nm to about 15 nm during steady state operation. | 08-07-2014 |
20140233980 | DUAL ROLL SYSTEM INTEGRATING A DELIVERY ROLL AND A CLEANING ROLL TO EXTEND THE LIFETIME OF THE BCR SYSTEM - An image forming apparatus comprises an electrophotographic photoconductive member, a charging unit, a delivery unit and a cleaning unit. The charging unit is disposed in contact with the surface of the photoconductive member and the delivery unit disposed in contact with the surface of the charging unit. The delivery unit applies a layer of functional material to a surface of the charging unit and the charging unit in turn applies a layer of the functional material onto the surface of the photoconductive member. The cleaning unit is disposed in contact with a surface of the charging unit to clean the charging unit and reduce contamination of a surface of the delivery unit. The cleaning unit is disposed in an upstream direction of the delivery roller relative to a rotation direction of the charging unit. | 08-21-2014 |
20140249005 | Stabilizing Polymers to Control Passive Leaking of Functional Materials From Delivery Members - A delivery member for use in an image forming apparatus. The delivery member has a support member and a first layer disposed on the support member. The first layer includes a cross-linked elastomeric matrix, a stabilizing polymer comprising a polysiloxane backbone, and a functional material. Coating mixtures for preparing such delivery members having a first layer. Image forming apparatuses containing such delivery members. | 09-04-2014 |
20140255842 | PHASE IMMERSION EMULSIFICATION PROCESS AND APPARATUS - A method for preparing a latex or dispersion, the method comprising contacting at least one resin with an organic solvent to form a resin mixture; neutralizing the resin mixture with a neutralizing agent; and subjecting the resin mixture flow to steam flow in a continuous manner to form a dispersion. A method for forming toner, the method comprising: contacting a resin to an organic solvent and a neutralizing agent to form a resin mixture; subjecting the resin mixture flow to a steam flow in a continuous manner to form a dispersion; aggregating particles from a pre-toner mixture, the pre-toner mixture comprising the dispersion, an optional colorant, and an optional wax; and coalescing the aggregated particles to form toner particles. An apparatus that can perform the methods. | 09-11-2014 |
20140294424 | SEMI-CONTACT BIAS CHARGE ROLLER - There is described an image forming apparatus including an imaging member having a charge retentive-surface for developing an electrostatic latent image thereon, a substrate and a photoconductive member disposed on the substrate. A bias charge roller for applying an electrostatic charge on the charge retentive surface to a predetermined electric potential is included in the image forming apparatus. The bias charge roller includes a first circumferential area in contact with the photoconductive member (CC | 10-02-2014 |
20140294443 | IMAGE FORMING SYSTEM - The presently disclosed embodiments relate generally to image forming systems comprising imaging apparatus members and toner compositions. More specifically, the present embodiments relate to an improved BCR xerographic system comprising (1) a cleaning blade comprising a material having a certain Share A Hardness; (2) a photoreceptor having a surface with a specified Young's Modulus and; and (3) a toner lubricant additive. The combined system demonstrates a significant increase an overall service life of the system. | 10-02-2014 |
20140295333 | IMAGE FORMING SYSTEM - The presently disclosed embodiments relate generally to image forming systems comprising imaging apparatus members and toner compositions. More specifically, the present embodiments relate to specific toner compositions for use with electrophotographic imaging members comprising an overcoat layer protecting the imaging member surface and a contact type charging device, such as a “bias charge roll” (BCR). The toner compositions comprise a combination of additives that provide an image forming system that does not suffer from the commonly observed deletion and imaging member wear issues. | 10-02-2014 |
20140305340 | METHOD AND SYSTEM FOR MAGNETIC ACTUATED MILLING FOR PIGMENT DISPERSIONS - A method for preparing a pigment dispersion includes a) adding a pigment, a surfactant, and a solvent into a vessel, b) adding magnetic particles into the vessel; and c) applying a varying magnetic field to move the magnetic particles to mill down pigment particle size. A system for preparing a pigment dispersion includes a) a vessel for holding a solution comprising pigment particles, a surfactant and a solvent, b) magnetic particles added to the solution, c) a source for applying a varying magnetic field to move the magnetic particles to mill down pigment particle size, and d) a collector for collecting the magnetic particles for re-using at a later time. | 10-16-2014 |
20140307519 | METHOD AND SYSTEM FOR MAGNETIC ACTUATED MIXING - A method and system for magnetic actuated mixing which use magnetic particles and electromagnetic field to facilitate the mixing. The method and system use magnetic particles and a generated electromagnetic field to facilitate the milling as well. The method and system can be used in any application that requires the preparation of small-sized particles at either the micro or nano scale, including for example, preparing toners, inks, wax, pigment dispersions and the like. | 10-16-2014 |
20140308612 | METHOD AND SYSTEM FOR MAGNETIC ACTUATED MIXING TO PREPARE LATEX EMULSION - A method and system for magnetic actuated mixing which use magnetic particles and magnetic field to facilitate the mixing for preparing latex emulsion. In embodiments, a suitable process includes dissolving a resin in an organic solvent, optionally adding a surfactant, adding a neutralization agent and water, adding magnetic particles, and subjecting the mixture to a magnetic actuated mixing to form a latex emulsion. In embodiments, the latex emulsion thus produced may be utilized to form a toner. | 10-16-2014 |
20140354715 | PRINTING APPARATUS USING ELECTROHYDRODYNAMICS - An imaging apparatus includes an imaging member having a surface, a development component that is not in physical contact with the imaging member, and a power source for generating an electric field between the imaging member surface and the development component. An ink is electrohydrodynamically transferred from the development component to the imaging member surface when the electric field is generated. | 12-04-2014 |
20140363761 | METHOD OF MAKING TONERS - The present embodiments relate to methods of making a toner composition. More specifically, the present embodiments relate to methods of including a functional material into a toner composition. | 12-11-2014 |
20140376965 | ANGLED ALIGNMENT METHOD FOR LIQUID MATERIALS APPLICATOR IN BETTER CONTACT WITH P/R OR BCR TO MINIMIZE TORQUE DURING CYCLING - An image forming apparatus includes an electrophotographic photoconductive member and a delivery unit. The delivery unit is disposed in contact with a surface of the photoconductive member to apply a layer of functional materials to the surface of the photoconductive member, wherein a cylindrical axis of the delivery unit is angled with respect to a cylindrical axis of the photoconductive member to increase uniformity of the functional materials layer. An image forming apparatus an electrophotographic photoconductive member, a charging unit and a delivery unit disposed in contact with the surface of the charging unit, wherein the delivery unit applies a layer of functional materials to the surface of the photoconductive member. and a cylindrical axis of the delivery unit is angled with respect to a cylindrical axis of the charging unit to increase the uniformity of the functional materials layer | 12-25-2014 |
20150016834 | COATING APPARATUSES AND METHODS - An imaging apparatus includes an imaging member having a surface, a delivery member that is spaced apart from the imaging member, and a power source for generating an electric field between the imaging member surface and the delivery member. A functional material is electrohydrodynamically transferred from the delivery member to the imaging member surface when the electric field is generated. | 01-15-2015 |
20150030974 | PHOTOCONDUCTOR - Described herein is a photoreceptor having a substrate, a charge generating layer, a charge transport layer comprising N,N,N′N′-tetra(4-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine having a purity of from about 95 percent to about 100 percent, and a protective overcoat layer. The N,N,N′N′-tetra(4-methylphenyl)-(1,1′-biphenyl)-4,4′-diamine has been treated by a purification process two or more times. | 01-29-2015 |
20150053112 | METHOD AND SYSTEM FOR MAGNETIC PARTICLE ASSISTED ADD-ON MODULE ON INKJET PRINTER TO PREVENT INK FROM SETTLING - An ink jet printing system comprises an ink reservoir, an ink passageway, an inkjet nozzle, and a plurality of magnetic elements that are located adjacent at least one of the ink reservoir and the ink passageway. The at least one of the ink reservoir and the ink passageway further includes having micro-magnetic particles located therein. The magnetic particles may have a particle size from about | 02-26-2015 |
20150086922 | LATEX FORMING PROCESS COMPRISING CONCURRENT STEAM INJECTION EMULSIFICATION AND SOLVENT DISTILLATION - A process includes dissolving a polymer in an organic solvent to form a polymer solution and forming a latex from the polymer solution by contacting the polymer solution with steam while substantially simultaneously distilling the organic solvent. | 03-26-2015 |