REGISTER now for FREE 
|
FREE patent keyword monitoring and additional FREE benefits. REGISTER now for FREE
|
|
|
Electrophotography > Image Formation > Charging > Contact > Roller RollerRoller patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.07/05/07 - 20070154240 - Conductive roller for an image forming apparatus The present invention relates to conductive adhesives that may be used within an image forming apparatus. The image forming apparatus may include printing devices such as inkjet printers, electrophotographic printers, copiers, faxes, all-in-on devices or multi-functional devices. The conductive resins may be applied to the shaft of foam rolls suitable ... 06/07/07 - 20070127950 - Apparatus for charging an image transfer surface An apparatus for charging an image transfer surface in an image transfer device includes a support member and a conductive polymer material surrounding an outer periphery of the support member. An inner portion of the conductive polymer material is loaded with a supplemental conducting agent, and an outer portion of ... 05/24/07 - 20070116493 - Conductive member, charging member using the conductive member, process cartridge using the charging member and image forming apparatus using process cartridge An conductive member includes a long conductive supporting body to which a predetermined potential is applied, extending from one side to the other side, an electric resistance adjusting layer, which is formed to surround a circumference surface of the conductive supporting body and adjusts an electric resistance, and a surface ... 02/01/07 - 20070025772 - Image-forming device An image-forming device including a plurality of supporting rollers, a photosensitive belt, a pressing roller, an intermediate roller, and a charging roller. The plurality of supporting rollers includes a preselected supporting roller The photosensitive belt is circularly movably supported on the plurality of supporting rollers The pressing roller is disposed ... 11/30/06 - 20060269327 - Semiconductive rubber member A conductive rubber roller 10 having a conductive rubber layer 1, containing chloroprene rubber, which composes an outermost layer thereof. When an alternating current is applied to the conductive rubber roller 10 at a voltage of five and a frequency of 100 Hertz, a dielectric loss tangent is 0.1 to ... 09/14/06 - 20060204280 - Charging roller, process cartridge, and electrophotographic apparatus Charging roller has at least a support member and a conductive covering member, the charging roller where a value of tan δ expressed in a ratio of a storage elastic modulus and a loss elastic modulus by dynamic viscoelasticity in a cross sectional direction of the charging roller at 25° ... 08/24/06 - 20060188294 - Image forming apparatus An image forming apparatus includes: an image supporting member; a charge roller for charging the image supporting member; a gap setting member disposed on the charge roller for setting a gap between the image supporting member and the charge roller; and a pressing member disposed at a position corresponding to ... 08/24/06 - 20060188293 - Conductive member and process cartridge having it and image forming apparatus having the process cartridge A conductive member including a conductive supporting body (1), an electric resistance adjusting layer (2) formed on the conductive supporting body (1), and space holding members (3, 3) provided on opposite ends of the electric resistance adjusting layer (2), at least one engaging projection (50, 60,70, 80) being provided on ... 07/27/06 - 20060165439 - Conductive roller, and process cartridge and electrophotographic apparatus which have conductive roller In a conductive roller having a conductive substrate, a conductive elastic layer and a conductive cover layer, the conductive cover layer is formed of a seamless tube containing a thermoplastic polymer, the surface of the conductive roller is coated with an inorganic compound the particle surfaces of which have been ... 07/06/06 - 20060147227 - Imaging methods, image engines, and photoconductor charging systems Imaging methods, image engines, and photoconductor charging systems are described. According to one embodiment, an imaging method includes providing a charge device configured to provide an electrical charge to a surface of an imaging member which is usable for imaging, moving a surface of the charge device adjacent to the ... 06/08/06 - 20060120759 - Image forming apparatus and charging method An image forming apparatus has: a photosensitive drum as an image holding body to form an electrostatic image; a charging roller which is arranged so as to face the drum and charges it; pressing springs which apply a pressing force to the charging roller toward the drum; and spacer members ... 05/25/06 - 20060110185 - Imaging methods, imaging member charging methods, and image engines Imaging methods, imaging member charging methods, and image engines are described. According to one embodiment, an imaging method includes providing an imaging member having an outer surface comprising a plurality of portions having a plurality of different radii, rotating the portions of the outer surface of the imaging member adjacent ... 04/13/06 - 20060078353 - Charging device, process unit, image forming apparatus, and method for producing rotating member An image forming apparatus has a latent image supporting body configured by a substrate and a covering layer provided on the substrate; and a charging device which is a rotating body configured by an axis member and a charging member provided on the axis member, and which charges the latent ... 03/23/06 - 20060062598 - Charging device, process cartridge and image forming apparatus A charging device includes a charging member disposed opposite to a surface of an image carrier. The image carrier is charged by applying a voltage to the charging member, and the charging member includes a substrate and a resistor layer thereon. The resistor layer is disposed with two spacers contacting ... 03/23/06 - 20060062597 - Charging roller A contact charging roller composed of a support member and a conductive coating member is disclosed. The conductive coating member is composed of a seamless tube that contains a non-polar resin or elastomer and a polar resin or elastomer. ... 02/23/06 - 20060039719 - Charging device, image forming process cartridge, and image forming apparatus including the charging device A charging device includes a charging member which is applied with a voltage including an alternating current voltage superimposed on a direct current voltage to charge an image carrier. An equation of “7≦f/v≦17” is satisfied, where “f” is a frequency (Hz) of the alternating current voltage, and “v” is a ... 02/16/06 - 20060034636 - Charging device using a charge roller and image forming apparatus including the same An image forming apparatus of the present invention includes a charging device including a charge roller formed with annular grooves at opposite end portions thereof and configured to charge an image carrier. Annular gap forming members each are fitted in the annular grooves for forming a gap between the charge ... 02/09/06 - 20060029428 - Charging member, process cartridge, and electrophotographic apparatus A charging member is disclosed having a support and at least one cover layer provided on the support. The cover layer has an outermost layer of the cover layer placed at the outermost surface of the charging member; the outermost layer contains i) composite particles composed of first metal oxide ... 12/29/05 - 20050286934 - Biased charge roller with embedded electrodes with post-nip breakdown to enable improved charge uniformity Electrodes are embedded in a biased charge roller of a xerographic device. The electrodes, which may run the length of the roller, are deposited on an insulating substrate. A semi-conductive conformable layer of a flexible elastomer covers the electrodes. The semi-conductive conformable layer limits current flow between electrodes and relaxes ... 12/08/05 - 20050271420 - Charging apparatus, and image forming apparatus equipped with same A charging apparatus, process cartridge, and image forming apparatus with which current fluctuation values in the charging current can be suppressed, and image defects caused by filming and the like can be prevented, by specifying a permissible gap fluctuation value by quantitatively ascertaining the relationship between the fluctuation value in ... 10/20/05 - 20050232659 - Image forming apparatus and charging device therefor A charging device of the present invention includes a charge roller adjoining or contacting the surface of a photoconductive element. A DC and an AC voltage source output a DC and an AC voltage, respectively. A voltage applying device superposes the DC and AC voltage and applies the resulting superposed ... 10/13/05 - 20050226654 - Charging device using a charge roller and image forming apparatus including the same An image forming apparatus of the present invention includes a charging device including a charge roller formed with annular grooves at opposite end portions thereof and configured to charge an image carrier. Annular gap forming members each are fitted in the annular grooves for forming a gap between the charge ... ### FreshPatents.com Support |