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| Number | Title | Issue Date |
| 8165510 | Development device and image forming apparatus having electrodes that cause toner particles to form a toner cloud on the surface of the toner carrier The development device includes a toner carrier, a toner supplier, and a surface electrical potential controller. When the toner supplier supplies toner particles to the toner carrier, the toner carrier carries toner particles to adhere to a latent image formed on t... | 04/24/2012 |
| 8145103 | Image formation device and developer supply device There is provided an image formation device including a developer holding body having a developer holding surface; and a developer supply unit to supply the developer to a position facing the developer holding surface by carrying the developer in a developer transpo... | 03/27/2012 |
| 8116667 | Developing device and image forming apparatus A developing device include: a toner carrier that is arranged oppositely to an image carrier; a toner-flying electrode member spaced apart from the toner carrier; and an oscillating electric field generating power source that connects the toner-flying electrode memb... | 02/14/2012 |
| 8086148 | Electrophotographic image forming apparatus An electrophotographic image forming apparatus is disclosed. The electrophotographic image forming apparatus includes a photoconductor body, a donor roller which develops an electrostatic latent image on the surface of the photoconductor body by using charged toners... | 12/27/2011 |
| 8086149 | Image forming apparatus A toner supply apparatus 6 is configured to be able to supply a charged toner T to a latent image forming surface LS of a photoconductor drum 3. The toner supply apparatus 6 houses a toner electric field transport body 62. The toner elect... | 12/27/2011 |
| 8055165 | Active image state control with distributed actuators and sensors on development rolls Exemplary embodiments provide a roll member that includes one or more controllable cells and methods for making and using the roll member to control an image (or toner) state thereon. The controllable cells can be disposed on a roll substrate and configured in a man... | 11/08/2011 |
| 8055166 | Active image state control with linear distributed actuators on development rolls Exemplary embodiments provide a roll member that includes one or more linear arrays of actuator cells and methods for making and using the roll member. In one embodiment, each linear array of the roll member can be controllably actuated as a group by, e.g., an oscil... | 11/08/2011 |
| 8050601 | Smart donor rolls using individually addressable piezoelectric actuators Exemplary embodiments provide a roll member that includes one or more piezoelectric tape and methods for making and using the roll member. The piezoelectric tape can be flexible and include a plurality of piezoelectric elements configured in a manner that the piezoe... | 11/01/2011 |
| 8041268 | Developing device, process cartridge, and image forming apparatus A developing device comprises a latent image carrier that carries a latent image, a toner carrier opposing the latent image carrier while carrying toner to develop the latent image, and plural electrodes arranged in a prescribed direction insulated from each other o... | 10/18/2011 |
| 8023866 | Powdered toner direct marking apparatus A marking apparatus including a traveling wave grid toner transport circuit structure for transporting powdered toner along a transport surface, and electromechanical elements for selectively enabling toner patches to be projected to an output medium by a projecting... | 09/20/2011 |
| 7974559 | Direct marking apparatus for selectively providing powdered toner patches A marking apparatus including a traveling wave grid toner transport circuit structure for transporting powdered toner along a transport surface, and electric field concentrating elements for selectively enabling toner patches to be projected to an output medium by a... | 07/05/2011 |
| 7929887 | Direct imaging system with addressable actuators on a development belt Exemplary embodiments provide a direct imaging system and methods for direct marking an image using the system. The disclosed direct imaging system can eliminate the creation of a latent image and can be used in an electrophotographic machine and related processes. ... | 04/19/2011 |
| 7920812 | Development device and image forming apparatus that uses this device A development device provided with a first electrode layer and a second electrode layer, which are laminated so as to overlap one another in a normal direction with respect to the surface of the roller part of the toner bearing roller. A plurality of openings are pr... | 04/05/2011 |
| 7912410 | Developing device, a process cartridge and an image forming apparatus including a toner carrier and a voltage supply A developing device for a toner powder cloud development system, which can achieve high image quality and can be made compact. The developing device has a two-component development unit, a toner carrier, and an alternating current power source. The toner carrier, wh... | 03/22/2011 |
| 7904008 | Method of using multiple developing members in a single-component developing system The present invention is directed to a non-contact, single-component developing system for electrophotographic devices that enables high speed, high quality development and color development without an accumulator, or some other intermediate transfer member by emplo... | 03/08/2011 |
| 7894754 | Image forming apparatus having developer supply apparatus A toner supply apparatus 6 is configured to be able to supply a charged toner T to a latent image forming surface LS of a photoconductor drum 3. The toner supply apparatus 6 houses a toner electric field transport body 62. The toner elect... | 02/22/2011 |
| 7873309 | Addressable actuators for a digital development system Exemplary embodiments provide a digital development system and methods for making and using the system. Specifically, the digital development system can utilize a roll member that includes a plurality of actuator cells arranged in a 2-dimensional array with each act... | 01/18/2011 |
| 7869748 | Direct imaging system with addressable actuators on a development roll Exemplary embodiments provide a direct imaging system and methods for direct marking an image using the system. The disclosed direct imaging system can eliminate the use of at least one of a charge, and/or exposure subsystems in an electrostatographic machine and re... | 01/11/2011 |
| 7738820 | HSD wires using fibrous carbon nanomaterial yarns A Hybrid Scavengeless Development electrophotographic printing system is provided wherein the electrode wires contain carbon nanotube yarn. The use of carbon nanotube yarn alleviates the problem of fundamental strobing image defects, because the electrodes made from... | 06/15/2010 |
| 7734233 | Development device, process cartridge, and image forming apparatus A disclosed development device includes: a latent image carrier; a conveying member disposed so as to face the latent image carrier, the conveying member having plural electrodes insulated from one another and arranged at predetermined intervals so as to generate an... | 06/08/2010 |
| 7702265 | Developing unit and image forming apparatus A developing unit for transferring toner onto a latent image on an image carrier so as to develop the latent image includes a toner carrier, an electric field generator and a separating force applicator. The toner carrier including a plurality of electrodes disposed... | 04/20/2010 |
| 7489893 | Hybrid type developing apparatus and developing method A hybrid type developing apparatus and method forms a magnetic brush of non-magnetic toner and a magnetic carrier on a circumference of a magnetic roller forms a uniform toner layer on the circumference of a donor roller using only toner from the magnetic roller, an... | 02/10/2009 |
| 7415230 | Developing apparatus featuring an insulating or electrically floating jumping developer regulation member A developing apparatus includes a developer carrying member, disposed opposite to an image bearing member, for carrying developer which is caused to jump from the developer carrying member to the image bearing member to develop an electrostatic latent image formed o... | 08/19/2008 |
| 7410742 | Image forming method An image forming method comprising: developing an electrostatic latent image on a latent image carrier with toner to form a toner image, transferring the toner image; and using ultrasonic vibration in the developing step or in the transferring step is disclosed. The... | 08/12/2008 |
| 7340204 | Color image forming apparatus and process cartridge therefor A color image forming apparatus including a first-color developing unit configured to form a toner image on the photoconductive belt; and a second-color developing unit and successive developing units, at least the second-color and successive developing units each i... | 03/04/2008 |
| 7235123 | Particle transport and near field analytical detection Particle collection, transport, and detection systems are disclosed. The systems are uniquely adapted for collecting or concentrating particles from a flowing medium and then transporting the collected particles to a desired location or for subsequent analysis. Elec... | 06/26/2007 |
| 7228094 | Nano-size powder coatings for donor members A donor member useful in ionographic or electrophotographic apparatuses and useful in hybrid scavengeless development units, having a substrate and an outer coating having a nano-size powder. ... | 06/05/2007 |
| 7215912 | Intermediate transfer medium and image forming apparatus using the intermediate transfer medium An intermediate transfer medium on which a toner image is to be transferred, having a property such that a surface potential thereon decays with time t according to an equation V=A exp(−t/τ) wherein V represents the surface potential of the intermediate transfer ... | 05/08/2007 |
| 7204583 | Control electrode for rapid initiation and termination of particle flow An electrostatic gating assembly utilizing at least three electrodes is disclosed. The assembly is particularly well suited for controlled administration of small particles. ... | 04/17/2007 |
| 7200352 | Developing apparatus, developing method, image forming apparatus, image forming method and cartridge thereof A developing device including a latent image supporter. Powder is adhered on the latent image supporter to develop a latent image on the latent image supporter and a transporting member is arranged opposite to the latent image supporter. A plurality of electrodes ar... | 04/03/2007 |
| 7193744 | Image forming system and its control method Conventionally, when counterfeit judgment processing by using electronic watermark is performed in a printer driver, a printing speed is lowered due to heavy load. To solve the problem, in the printer driver, first, it is judged whether or not image data indicated b... | 03/20/2007 |
| 7188934 | Electrostatic gating Various systems and techniques are disclosed for stopping, selectively controlling, and optimizing a flow of particles in a flowing stream. The systems and techniques utilize a multi-electrode assembly and various voltage waveforms applied to those electrodes. The p... | 03/13/2007 |
| 7171144 | Image defect reduction in image development apparatus Super wire history image defects in an image development system including one or more electrode wires disposed in a gap between a toner donor roll and an imaging member are reduced by providing an initial toner composition in the image development system, the initia... | 01/30/2007 |
| 7171145 | Developing device and process cartridge for an image forming apparatus A method of developing a latent image formed on an image carrier with toner, including causing a developer carrier, which faces the image carrier and accommodates a magnet therein, to support a developer having a toner and a magnetic carrier supporting the toner and... | 01/30/2007 |
| 7171136 | Power supply for hybrid scavengeless development type image forming system A power supply for a hybrid scavengeless development (HSD) image forming system which generates three voltages, a mag voltage, a donor voltage and a wire electrode voltage. The power supply outputs square waveforms for generating toner clouds to maximize the voltage... | 01/30/2007 |
| 7109365 | Processes for solubilizing organometallic compounds in fluorinated solvents by addition of a partly fluorinated non-catalytic co-solubilizer A process for solubilizing an organometallic compound in a fluorinated solvent to form an organometallic solution by adding and reacting a co-solubilizer having a partly fluorinated polymer, an organometallic compound, and a fluorinated solvent, and the co-solubiliz... | 09/19/2006 |
| 7099611 | Method and apparatus for image forming capable of reducing mechanical stresses to developers during transportation for development A toner contained in a hopper is fed to an electrostatic conveyance member by a supply roller. With an actuator of the electrostatic conveyance member functioning, the toner is conveyed while being electrically charged at the same time, and is then supplied to a dev... | 08/29/2006 |
| 7085506 | Method for controlling the state of developer material A method for maintaining developer material within in a predefined state through the scheduling of increased toner throughput coordinated among multiple developer housings. The method monitors developer material health at each developer station within a plurality of... | 08/01/2006 |
| 7076193 | Wire module for developer unit An apparatus for developing in a development zone a latent image recorded on a surface, including a housing defining a chamber storing at least a supply of toner therein; a donor member disposed of at least partially in the chamber of the housing and spaced from the... | 07/11/2006 |
| 7062204 | Classifier, developer, and image forming apparatus A classifier having a simple constitution for classifying powder with a high accuracy is provided. The classifier is provided with a transfer board having a plurality of electrodes for generating electric fields for transferring and hopping the powder by an electros... | 06/13/2006 |
