| Patent application number | Description | Published |
|---|
| 20080219703 | CONDUCTIVE MEMBER, PROCESS CARTRIDGE USING CONDUCTIVE MEMBER, AND IMAGE FORMING APPARATUS USING PROCESS CARTRIDGE - A conductive member includes a conductive supporter, an electric resistance adjusting layer formed on the conductive supporter and gap retaining members which are of a different material from that of the electric resistance adjusting layer and are disposed respectively at both ends of the electric resistance adjusting layer for contacting an image carrier so as to maintain a predetermined gap between the electric resistance adjusting layer and the image carrier, wherein the electric resistance adjusting layer is made from a resin composition containing a thermoplastic resin containing an ether group, an organic phosphonium salt and a fluorine-containing organic anion salt. | 09-11-2008 |
| 20080279588 | Conductive member, process cartridge including same, and image forming apparatus including the process cartridge - A conductive member includes a conductive supporting member provided facing an image bearing member and including a continuous or discontinuous fixing groove provided in the vicinity of each of both ends of the conductive supporting member in a peripheral direction thereof, an electrical resistance adjusting layer formed on the conductive supporting member and including a step portion which includes at least one step disposed in the vicinity of each of the both ends of the electrical resistance adjusting member, and gap retainers each provided to the step portion and including a cylinder portion which contacts at least one surface of the step portion, and an end plate so that a predetermined gap is formed between the image bearing member and the electrical resistance adjusting layer. The end plate contacts at least one surface of the step portion and fits into the fixing groove. | 11-13-2008 |
| 20090042117 | CONDUCTIVE MEMBER, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS INCLUDING THE CONDUCTIVE MEMBER - A conductive member for use in an image forming apparatus, a process cartridge including the conductive member as a charging member, an image forming apparatus including the process cartridge, a charging member, and a process cartridge and an image forming apparatus including the charging member. The conductive member includes a surface coated with a powder lubricant. The charging member includes a conductive member and a powder lubricant applied to a surface of the conductive member. | 02-12-2009 |
| 20090142679 | CONDUCTIVE MEMBER, PROCESS CARTRIDGE USING THE CONDUCTIVE MEMBER, AND IMAGE FORMING DEVICE USING THE PROCESS CARTRIDGE - A conductive member includes a conductive supporting body, an electrostatic resistance adjusting layer formed on the conductive supporting body, and a space holding member, which is formed on each of both end portions of the electric resistance adjusting layer, has a material different from a material of the electric resistance adjusting layer, and constantly maintains a space between the electric resistance adjusting layer and the image carrier, wherein the electric resistance adjusting layer comprises a resin composition including thermoplastic resin containing at least polyamide elastomer and polyolefin block polymer and plural types of salt containing at least one type of salt selected from perchlorate and at least one type of salt selected from fluorine-containing organic anion salt. | 06-04-2009 |
| 20090274487 | CHARGING MEMBER, CHARGING DEVICE INCLUDING THE CHARGING MEMBER, PROCESS CARTRIDGE INCLUDING THE CHARGING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE PROCESS CARTRIDGE - A charging member is provided in which a minute gap between an image support body and the charging member is set widely but even so the charging member does not abnormally discharge easily, the charging member includes a conductive support body | 11-05-2009 |
| 20100215400 | CHARGING MEMBER, CHARGING DEVICE INCLUDING THE CHARGING MEMBER, PROCESS CARTRIDGE INCLUDING THE CHARGING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE PROCESS CARTRIDGE - A charging member, includes: an electrically-conductive support; an electrical resistance adjustment layer having ion conductivity provided on the electrically-conductive support; an intermediate layer having ion conductivity provided on the electrical resistance adjustment layer; and a surface layer having insulation provided on the intermediate layer, wherein the intermediate layer is formed of a resin composition containing at least a polyether polyol resin, and the surface layer is formed of a resin composition containing at least one of a fluorine-based resin, a silicone-based resin, a polyamide resin, a polyester resin, and a urethane resin. | 08-26-2010 |
| 20110286763 | CHARGE ELEMENT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A charge element includes an element body in parallel to a photoreceptor element and biased to the photoreceptor element by an elastic element, and a gap retainer unit provided on the element body, contacting with an outer face of the photoreceptor element to constantly retain a gap between an outer face of the element body and the outer face of the photoreceptor element, and comprising a first gap retainer element provided on the element body and a second gap retainer element provided on the first gap retainer element and made of a material softer than that of the first gap retainer element and that of the outer face of the photoreceptor element. | 11-24-2011 |
