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| Number | Title | Issue Date |
| 7352977 | Toner level detection method and image forming apparatus employing such toner level detection method Forced supply of toner(s) from toner hopper(s) to developer storage container(s) is executed while interrupting and/or prohibiting image forming operation(s) so as to prevent consumption of toner(s), toner level(s) within toner hopper(s) being determined to be low a... | 04/01/2008 |
| 7342227 | Coating for the breakdown of corona effluents A plasma sprayed TiO2 coating is used to remove effluents produced during an electrical charging step using a corona charging device. The plasma spray allows for the application of TiO2 ceramic to an aluminum dicorotron housing. Plasma spray al... | 03/11/2008 |
| 7229398 | Circular-shaped metal structure and method of fabricating the same A circular-shaped metal structure is fabricated by plastic-working and has a wall thickness in the range of 0.03 mm to 0.09 mm both inclusive. A film composed of one of (a) silicon and fluorocarbon resin and (b) copper is coated on a surface of the circular-shaped m... | 06/12/2007 |
| 7210755 | Solid semiconductor element, ink tank, ink jet recording apparatus provided with ink tank, liquid information acquiring method and liquid physical property change discriminating method There is disclosed a solid semiconductor element which very efficiently detects information about a liquid and bidirectionally exchanges the information with the outside. The solid semiconductor element is disposed in a liquid container, and includes at least energy... | 05/01/2007 |
| 7156515 | Liquid material discharging method, liquid material discharging apparatus, and electronic device manufactured thereby A discharging apparatus has a substrate holding part 32 which holds a substrate S; an discharging head 34 which discharges a liquid material onto the substrate S; an ion producing device 38 which provides an ionized wind on the substrate S; an e... | 01/02/2007 |
| 7014287 | Solid semiconductor element, ink tank, ink jet recording apparatus provided with ink tank, liquid information acquiring method and liquid physical property change discriminating method There is disclosed a solid semiconductor element which very efficiently detects information about a liquid and bidirectionally exchanges the information with the outside. The solid semiconductor element is disposed in a liquid container, and includes at least energy... | 03/21/2006 |
| 6982734 | Printing on electrically writable media and electrically writable displays Apparatus and methods of printing on electrically writable media and electrically writable displays are described. In one aspect, a printer for printing on an electrically writable medium includes a source of an invisible charge species, and a charge species project... | 01/03/2006 |
| 6982735 | Imaging systems and methods Imaging systems and methods are described. In one aspect, an ink layer having an electrorheological fluid composition including a suspension of colorant particles dispersed in an electrically insulating carrier fluid is formed on a surface. A charge image is project... | 01/03/2006 |
| 6862031 | Imaging systems and methods Imaging systems and methods are described. In one aspect, an ink layer having an electrorheological fluid composition including a suspension of colorant particles dispersed in an electrically insulating carrier fluid is formed on a surface of an electrically insulat... | 03/01/2005 |
| 6061074 | Ion generator for ionographic print heads An ion generator for the generation of a plasma is assembled from module subassemblies. The first subassembly includes a dielectric plate 1, on the first surface 1a of which are located a large number of first electrodes 3, and the second surface 1b of wh... | 05/09/2000 |
| 5943082 | Image recording apparatus using optical beam for applying a transfer bias of a polarity so as not to repel adhesive toner In a laser beam printer, automatic optical quantity (APC) control is performed based on an optical quantity detection output to generate a laser beam having a predetermined quantity of light. In each scanning cycle, APC is effected by utilizing a period (... | 08/24/1999 |
| 5933177 | Erase unit for ion deposition web-fed print engine An erase unit for an ion deposition web-fed print engine includes a plenum extending the width of the electrostatic image on the image cylinder and defining an ionization chamber with the image cylinder surface. The plenum has first and second electrodes ... | 08/03/1999 |
| 5867190 | Image forming unit with control electrodes arranged to be electrically insulated from each other An aperture electrode unit mounted in an image forming apparatus includes a polyimide insulating sheet, plural apertures, substantially T-shaped control electrode portions each of which is provided at a part of the peripheral edge of each aperture, and co... | 02/02/1999 |
| 5739841 | Apparatus and method for grey level printing with uniformity correction A non-impact printer apparatus includes a printhead having a plurality of recording elements. Nonuniformities in emission characteristics of the recording elements are corrected using look-up tables (LUT) assemblages that include a first LUT wherein the r... | 04/14/1998 |
| 5526029 | Method and apparatus for improving transcription quality in electrographical printers A method and apparatus for improving printing quality in electrographic printers includes an electrode device for generating a latent electrostatic charge pattern from electric signals. The electrode device is arranged within a gap area between a particle... | 06/11/1996 |
| 5369427 | Electrostatic recording head The electrostatic recording head includes an air introducing path for introducing an air, an ion exhaust path, an array of a large number of pin electrodes provided near the ion exhaust path within the air introducing path, an opposing electrode disposed ... | 11/29/1994 |
| 5325121 | Method and apparatus for correction of focusing artifacts in ionographic devices An ionographic printing system including an imaging member with a charge retentive surface on which a latent image may be formed; a printhead including a source of ions, means for moving ions from the source to the charge retentive surface in a continuous... | 06/28/1994 |
| 5270741 | Apparatus for generating ions in solid ion recording head with improved stability A solid ion recording head using an ion generation device, capable of realizing a uniform and stable recording and a compact physical configuration. The head includes a head support member in substantially rectangular cross sectional shape for supporting ... | 12/14/1993 |
| 5231428 | Imaging device which compensates for fluctuations in the speed of an image receiving surface Methods and apparatus are provided for forming images on a moving, charge retentive surface using a stream of radiant energy, modulated in imagewise fashion, wherein the intensity of the stream of radiant energy is controlled based on measured variations ... | 07/27/1993 |
| 5225856 | Method and apparatus for correction of blooming artifacts in ionographic devices To correct for blooming artifacts in an ionographic imaging device, a summation of the effects of previously deposited charge is made prior to depositing ions to form the image, to determine the likely amount of displacement of any ion due to a previously... | 07/06/1993 |
| 5206669 | Apparatus and method for selectively delivering an ion stream A print head for an ionographic printing system, including a multiple pluralities of modulation electrodes for modulating an ion stream generated by the print head, and multiple correction electrodes. Each correction electrode is located in proximity to o... | 04/27/1993 |
| 5153618 | Ionographic imaging system An ionographic imaging member containing a conductive layer and a uniform and continuous dielectric imaging layer free of voids, the imaging layer having a dielectric constant of from about 1.5 to about 40 and a thickness of at least about 45 micrometers,... | 10/06/1992 |
| 5150135 | Current sensing development control system for an ionographic printing machine An apparatus which develops an electrostatic image with marking particles. The apparatus includes a developer roller for transporting the marking particles to a position adjacent an electrostatic image for the purpose of developing the image. During depos... | 09/22/1992 |
| 5138349 | Apparatus for reducing the effects of ambient humidity variations upon an ionographic printing device A printer member adapted to be used in an ion printing device having a conductive coating positioned on a portion of the marking head near the charge receiver. The conductive coating is electrically connected to the housing in order to substantially equal... | 08/11/1992 |
| 5130727 | Feedback scheme for ionographic calibration The present invention is a method and apparatus which solves the problem of rapidly calibrating to a uniform value, the ion current (i) associated with each modulation electrode (50) of a print array (40) in an ionographic printing head (10). The calibrat... | 07/14/1992 |
| 5087933 | In situ inonographic uniformity correction The In Situ Ionographic Uniformity Correction is a method and apparatus which solves the problem of non-uniform density of ion current projected from an ionographic print head (10) caused chiefly by variations in the dimensions of the modulation channel (... | 02/11/1992 |
| 5081476 | Ionographic printhead gating control for controlling charge density image defects due to surface velocity variations In an ionographic device having a printhead, including a source of ions, a modulation channel defining a path for a stream of ions from the the ion source towards a moving imaging surface, an array of modulation electrodes arranged along the path to modul... | 01/14/1992 |
| 5081475 | Vertical line width control ionographic system A device for the adjustment of the digital data stream that drives the modulators in an ionographic printing device. In particular, the device stretches strings of black image pixels to produce wider vertical lines and other fine details that may have bee... | 01/14/1992 |
| 5072243 | Electrostatic purge for an ion projection device A method and device which removes particulates from a gap in an ion projection device, when the device is not enabled for printing, with the gap being defined by a charge receiver and a printer head. The particulates within the gap are subjected to a vari... | 12/10/1991 |
| 4996425 | Method and apparatus for increasing corona efficiency in an ionographic imaging device In an ionographic device projecting a modulated stream of ions in imagewise fashion towards a moving imaging surface, including an ion printing head having an ion chamber supporting a coronode held at a voltage VC to produce ions for deposit on... | 02/26/1991 |
| 4973994 | Method and apparatus for controlling ion trajectory perturbations in ionographic devices In an ionographic device projecting a stream of ions towards a moving imaging surface, modulated in imagewise fashion, an array of control electrodes corresponding to the ion stream modulating array of electrodes, is arranged adjacent to the path of the i... | 11/27/1990 |
| 4972212 | Method and apparatus for controlling ion trajectory perturbations in ionographic devices In an ionographic device projecting a stream of ions towards a moving imaging surface, modulated in imagewise fashion, one or more control electrodes may be arranged adjacent to the path of the ion stream and between the source of the modulated ion stream... | 11/20/1990 |
| 4958172 | Charge transfer imaging cartridge A charge transfer imaging cartridge features driver electrodes extending in a first direction and finger electrodes extending in a second direction and defining edge structure straddling the driver electrodes. The driver and finger electrodes are separate... | 09/18/1990 |
| 4951071 | Resistive nib ionographic imaging head In an ionographic device including an imaging head projecting a modulated stream of ions in imagewise fashion towards a moving imaging surface, wherein the head is provided with an ion chamber supporting a coronode held at a voltage VC to produ... | 08/21/1990 |
| 4939543 | Ionographic ozone filtering system An air jet assisted ion projection machine including an image bearing member, an ion generator, an inlet channel and an outlet channel connected to the ion generator, a source of air in communication with the inlet channel to move ions through the outlet ... | 07/03/1990 |
| 4899186 | Ionographic device with pin array coronode An ion printing head is provided with a pin array coronde as an ion generation device, a corona controlling electrode and an array of modulation electrodes controlling the flow of ions to an imaging member in imagewise configuration. The pin array coronod... | 02/06/1990 |
| 4896174 | Transport of suspended charged particles using traveling electrostatic surface waves A method and apparatus for transporting electrically charged particles suspended in a fluid, such as ions or the like, through said fluid, in a transport direction by means of a traveling electrostatic surface wave. The apparatus includes an array of tran... | 01/23/1990 |
| 4864331 | Offset electrostatic imaging process An offset electrostatic imaging process is disclosed which comprises the steps of (a) forming a latent electrostatic image on a dielectric imaging member, said dielectric imaging member being prepared by coating an electrically conductive substrate with a... | 09/05/1989 |
| 4853719 | Coated ion projection printing head A fluid flow assisted ion projection printing head having an electrically conductive metal body defining an elongated ion generation chamber, a corona wire supported within said chamber for generating ions, an entrance channel in the body for introducing ... | 08/01/1989 |
| 4851865 | Electrophotographic apparatus An electrophotographic apparatus includes a movable amorphous silicon photosensitive member, charger for charging the photosensitive member, and a projection device for projecting a laser beam onto said photosensitive member. The projection device project... | 07/25/1989 |
