Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8112028 | Conductive roll, cleaning roll, cleaning unit, process cartridge, and image-forming apparatus Provided is a cleaning roll (conductive roll) including a core, a coating layer formed thereon, and a shaft along the axis of the core. The coating layer contains a bismaleimide resin and a conductive agent. Also provided are a cleaning unit, a process cartridge, an... | 02/07/2012 |
| 7995960 | Image forming apparatus having units for cleaning photosensitive members An image forming apparatus includes photosensitive members which are aligned along a conveying direction of a transfer medium and on each of which an electrostatic latent image is to be formed; developing units which supply a plurality of colors of developing agent ... | 08/09/2011 |
| 7907885 | Electrostatic roll cleaner A cleaning roll for a xerographic cleaning station is disclosed. The roll may comprise a compliant foam layer covered with a fabric overcoating. The cleaning station may also contain a detoning roll which contacts the cleaning roll to attract residual toner for disp... | 03/15/2011 |
| 7756462 | Image forming apparatus and cleaning device An image forming apparatus includes: an image carrier that carries an image; a developing unit that develops the image on the image carrier into a toner image; a transfer unit that transfers the toner image carried on the image carrier onto a transfer medium; and a ... | 07/13/2010 |
| 7751770 | Image forming apparatus and recovery roller Disclosed is an image forming apparatus, which comprises an image bearing member on which a toner image is formed, a sweep roller for removing residual toner particles from the image bearing member, and a recovery roller for recovering the toner particles from the s... | 07/06/2010 |
| 7702275 | Cleaning device A cleaning device includes: a first shaft; a cleaning roller which is operable to come into contact with a surface of a photosensitive drum, and is integrally rotated with the first shaft; a pressing member for pressing the cleaning roller against the surface of the... | 04/20/2010 |
| 7587164 | Cleaning device, image carrier unit and image-forming apparatus A cleaning device includes a first cleaning member that includes a surface layer formed by a cloth made of conductive fibers, contacts an image carrier holding an image and cleans the image carrier with a predetermined voltage applied to the first cleaning member; a... | 09/08/2009 |
| 7356278 | Cleaning member for charging device The present invention relates to printing devices and particularly to devices and a method for the reduction of contamination on a charging device. A cleaning member is supplied that has a cleaning material affixed to a substrate. The cleaning material is positioned... | 04/08/2008 |
| 7313356 | Image forming apparatus A cleaning apparatus is used for cleaning the surface of a photoconductive body. Residual toner on a rotating photoconductive body is collected after transferring a toner image from the photoconductive body onto a print medium, the apparatus includes a first cleanin... | 12/25/2007 |
| 7295788 | Image forming apparatus and process cartridge An image forming apparatus includes an object to be charged whose surface moves. A charging device for charging the object uses an electrical discharge generated by applying a voltage including an alternating current component to a charging member provided in contac... | 11/13/2007 |
| 7286777 | Image forming device with cleaning sequence process for returning toner adhered on transfer roller back to photoconductive drum An image forming device includes an image forming unit that includes an image carrier which carries an electrostatic latent image, a developing unit which forms a developing nip by contacting with the image carrier and develops the latent image by using toner, a tra... | 10/23/2007 |
| 7263308 | Cleaning member, cleaning device, charging device, transfer device, process cartridge, and image forming apparatus A cleaning member includes a contact portion that is in contact with a cleaning target, at least the contact portion is made of melamine resin foam that is obtained by heating and compressing an original form. Because the heated and compressed melamine resin foam is... | 08/28/2007 |
| 7218877 | Charging device, and process cartridge and image forming apparatus including the charging device using the same A charging device including a charging roller having a metal cylinder and an elastic layer located thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller which is rotatably mounted on the dr... | 05/15/2007 |
| 7197264 | Image forming apparatus It is intended to provide an image forming apparatus capable of conducting charge adjustment of post-transfer residual toner appropriately by securing a contact area of a temporarily-collecting member and an electrode, without applying excessive deformation load to ... | 03/27/2007 |
| 7194229 | Method and apparatus for forming superimposed toner images of a plurality of colors When superimposing toner images of a plurality of colors on an image supporting member to form a color image, a free phase ion in a precedent image is removed without distorting the toner image precedently formed on the image supporting member, thereby improving rep... | 03/20/2007 |
| 7171152 | Image-forming apparatus and image-forming method An image-forming apparatus with multiple toner image-forming units that form toner images by developing electrostatic latent images by means of a developer containing a nonmagnetic toner and a magnetic carrier. Each of the toner image-forming units has a photorecept... | 01/30/2007 |
| 7149466 | Conductive rubber member A conductive rubber member having a rubber layer, disposed in an outermost layer thereof, formed by using a rubber composition containing an ionic-conductive rubber, the rubber composition further containing a dielectric loss tangent-adjusting filler. The conductive... | 12/12/2006 |
| 7110699 | Image forming apparatus and process cartridge for use in the same An image forming apparatus of the present invention includes a sheet affixed at one edge portion and including a flat surface in the other edge portion. The flat surface is formed with a plurality of grooves each extending over the image forming range of a photocond... | 09/19/2006 |
| 7103304 | Electrically conductive member, unit for cleaning image holding member, process cartridge and image forming apparatus The present invention provides an electrically conductive member including a core and a resin layer provided on an outer peripheral surface of the core, wherein the resin layer is made of a resin composition in which an electrically conductive agent is dispersed, an... | 09/05/2006 |
| 7072604 | Electro-conductive roll and image-forming apparatus using the same An electro-conductive roll is provided that makes contact with a body to be charged in a state in which a voltage is applied thereto, and charges the body to be charged, a surface of the electro-conductive roll satisfying the following conditions (a) and (b): ... | 07/04/2006 |
| 7068960 | Cleaning device including brush roller with high cleaning performance, image forming apparatus and process unit including the cleaning device, method of removing deposit, and method of forming an image A cleaning device includes a brush roller that removes deposit from a surface of a member to be cleaned by rotating due to a movement of the surface of the member. The brush roller includes a rotary shaft element and a brush provided on the rotary shaft element. The... | 06/27/2006 |
| 7062194 | Charging device, and process cartridge and image forming apparatus including the charging device A charging device including a charging roller having a metallic cylinder with an elastic layer disposed thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller rotatably mounted on the drivin... | 06/13/2006 |
| 7055675 | Conveyor belt cleaning system An assembly for cleaning a conveyor belt system is disclosed. The cleaning assembly is for a conveyor belt system with the type having first and second endless belts which each traverse a separate belt travel path and together define a generally upright article tran... | 06/06/2006 |
| 6998218 | Apparatus and method for thermally developing flexographic printing sleeves An improved thermal development apparatus is used to remove uncured photopolymer from the imaged surface of a flexographic printing element. The apparatus typically comprises one or more heatable rolls that are contactable with an imaged surface of a flexographic pr... | 02/14/2006 |
| 6993281 | Image forming apparatus and process cartridge including flexible member An image forming apparatus of the present invention includes a sheet affixed at one edge portion and including a flat surface in the other edge portion. The flat surface is formed with a plurality of grooves each extending over the image forming range of a photocond... | 01/31/2006 |
| 6987944 | Cleaning device and image forming apparatus using the cleaning device An image forming apparatus includes an image bearer, a charging device that charges a surface of the image bearer, a latent image forming device that forms a latent image on the image bearer, a developing device that develops the latent image on the image bearer wit... | 01/17/2006 |
| 6986978 | Apparatus for forming image, process cartridge and process for regenerating the same An apparatus for forming an image that can stably provide an image for a long period of time is provided by using an electrophotographic photoreceptor having, as the outermost layer, a hard film containing one or more of a charge transporting organic silicon compoun... | 01/17/2006 |
| 6963720 | Image forming method and image forming apparatus with toner having specific characteristic In a toner image forming method, toner contains toner particles having a shape coefficient falling within a range of 1.0 to 1.6 in an amount of 65% by number or more and the toner particles has a variation coefficient of the shape coefficient of 16% or less. In a st... | 11/08/2005 |
| 6961534 | Rotating flicker bar for cleaning a rotating cleaner roll and for transmitting power to the cleaner roll A rotating flicker bar assembly for cleaning fibers of a rotating brush where the flicker bar is rotatably mounted in an interfering relationship with the fibers of the rotating brush and wherein the rotating flicker bar and brush are rotationally coupled in order t... | 11/01/2005 |
| 6928252 | Process unit and image forming apparatus having a structure to remove foreign matter A process unit and an image forming apparatus including an image holding member that holds an image thereon, a first cleaning roller that contacts a surface of the image holding member, a second cleaning roller that contacts a surface of the first cleaning roller, a... | 08/09/2005 |
| 6907826 | Method and device for printing a base material and cleaning a printing roller A printer has a printing drum with recesses on the surface thereof into which ink is provided for printing. After printing, any remaining ink is removed at a cleaning station including immersion in a fluid, air jets, or an air suction. The cleaning station and the i... | 06/21/2005 |
| 6853822 | Device for removing image disfiguring substances and image forming apparatus using the same A device included in an image forming apparatus for removing a substance that disfigures an image. The device includes an adsorbent support that supports an adsorbent. The absorbent has a molecular structure including voids that have a diameter great enough to pass ... | 02/08/2005 |
| 6813468 | Image forming device with a cleaning unit A cleaner includes a first roller and a second roller. The first roller is for removing foreign matter from a photosensitive body of an image forming device. The second roller is disposed in confrontation with the first roller. An electric field developed between th... | 11/02/2004 |
| 6810225 | Conductive member and electrophotographic apparatus incorporating the conductive member The present invention provides a conductive member used for a charging unit a development unit, a transfer unit, and a cleaning unit, which are used for electrophotographic apparatus or an electrostatic recording process. The conductive member includes an elastic la... | 10/26/2004 |
| 6799012 | Cleaning device and image forming apparatus using the same A cleaning device of the present invention is configured to remove toner left on an image carrier after the transfer of a toner image from the image carrier to a recording medium. A rotatable cleaning roller contacts the image carrier for removing the toner left on ... | 09/28/2004 |
| 6757505 | Image forming apparatus and cleaning device therefor A cleaning device of the present invention includes a brush roller having a brush held in contact with the surface of a body to be cleaned. The brush contacts the surface of the body to be cleaned due to the weight of the brush roller and rotates by following the mo... | 06/29/2004 |
| 6704540 | Cleaning device of image forming machine A cleaning device of an image forming machine including a pair of arm members each having one end portion pivotable about a support shaft, a cleaning roller rotatably supported between front end portions of the arm members via a shaft, helical compression... | 03/09/2004 |
| 6701122 | Cleaning device and image forming apparatus having it A cleaning device including a housing disposed above a photoconductor drum and having an opening portion open downward toward the circumferential surface of the photoconductor drum, a cleaning blade disposed in the housing so as to be located in the openi... | 03/02/2004 |
| 6640079 | Engage/disengage apparatus and photosensitive medium cleaning device of liquid printer using the same A device for engaging and disengaging an object in one direction and a photosensitive medium cleaning device of a liquid printer using the same are provided. The device for engaging and disengaging includes a housing, a driving motor disposed at the housi... | 10/28/2003 |
| 6584296 | Electro-mechanical roll with core and segments An electro-mechanical roll such as a bias transfer roll for use in a printing or copying apparatus comprising a conductive core having a segmented layer of compressible material positioned in a tandem relation to another thereon to form a generally cylind... | 06/24/2003 |
