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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8095051 | Image forming apparatus which achieves stability of a gap between an image bearing member and developer bearing member An image forming apparatus has an abutment roller which is provided at either end of a developing sleeve in a longitudinal direction and makes an SD gap (Gsd) between a photosensitive drum and a developing sleeve constant, an abutment block which is provided at eith... | 01/10/2012 |
| 8086150 | Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device A developing device includes a toner particle-bearing roller that bears toner particles on its surface and develops a latent image borne by an image-bearing member with those toner particles, the toner particle-bearing roller has a projection portion disposed on its... | 12/27/2011 |
| 8086151 | Developing roller specific for mono-component developing apparatus A mono-component developing apparatus including a developing roller which transports toner supported on an outer circumferential face of a center portion toward a developing area by rotating while frictionally sliding on a sealing member on each of two end portions.... | 12/27/2011 |
| 8086152 | Developing device, image forming apparatus, image forming system, developing method, and toner bearing member The present invention provides a developing device that includes a toner bearing member that includes regularly arranged projection sections and depressed sections for bearing toner, and that develops a latent image borne on an image bearing member with the toner bo... | 12/27/2011 |
| 8055169 | Developing device with image supporting member and developer supporting member disposed in specific arrangement, and image forming apparatus A developing device includes a developer supporting member abutting against an image supporting member for developing a static latent image on the image supporting member. In a state that a film member is disposed between the image supporting member and the develope... | 11/08/2011 |
| 8041270 | Image developer using one-component developer An image developer using a one-component developer, Including a developing roller visualizing an electrostatic latent image formed on an image bearer with a pulverized toner; and a feed roller feeding the pulverized toner to the developing roller while contacting th... | 10/18/2011 |
| 8019259 | Development device, process unit, and image forming apparatus A development device includes a developer carrier, a bearing member, a biasing member, and a guide. The developer carrier supplies a developer to an electrostatic latent image formed on an image carrier to develop the electrostatic latent image into a toner image. T... | 09/13/2011 |
| 8010022 | Developing roller and method of producing the same, and inspection process for developing roller product A developing roller having a properly adjusted toner feed quantity comprises a shaft, an elastic layer and a surface covering layer, in which a JIS 10-point average roughness (Rz) of the surface is 4-7 μm and a specular gloss at 85° according to JIS Z8741 of the s... | 08/30/2011 |
| 7979012 | Image forming apparatus and image forming method Provided is an image forming apparatus including: a latent image carrier; a charging unit; a latent image forming unit; a developing unit; a transferring unit; and a control unit that performs an image forming process by controlling the latent image carrier, the cha... | 07/12/2011 |
| 7957682 | Image forming unit and image forming apparatus An image forming unit includes an image bearing body, a rotating body disposed in contact with or disposed facing the image bearing body, a supporting member that supports a rotation shaft of the rotating body, an insertion hole provided on the supporting member, a ... | 06/07/2011 |
| 7945194 | Image forming apparatus and image forming system reducing electrical discharge An image formation apparatus includes an image carrier and a toner carrier having a concave portion arrayed in a regular pattern on its surface. A latent image that is carried on the image carrier is developed by toner carried in the concave portion by applying a de... | 05/17/2011 |
| 7929889 | Image forming apparatus and image forming method Provided is an image forming apparatus including: a latent image carrier; a charging unit; a latent image forming unit; a developing unit that has a toner carrier; a transferring unit that transfers the toner image on the transfer medium; and a cleaning unit that re... | 04/19/2011 |
| 7925193 | Rotary member, developing device, and image forming apparatus A rotary member includes a rotating main body, and support members that are formed to be supported by bearings. Each of the support members includes a spindle core formed of a first metal, and a cylindrical sheath that sheathes a portion of the spindle core where sl... | 04/12/2011 |
| 7917068 | Developing device and image forming apparatus A developing device is disposed facing an image bearing body that bears a latent image. The developing device includes a developer bearing body that bears a developer for developing the latent image. The developer includes mother particles and external additives. A ... | 03/29/2011 |
| 7907877 | Developing device, image forming apparatus, and image forming system A developing device has a rotatable toner bearing member that bears toner having a particulate external additive externally added to core particles. Projecting sections are arranged in a regular manner on a surface of the toner bearing member. A longitudinal directi... | 03/15/2011 |
| 7899375 | Developing apparatus, image forming apparatus, image forming system and image forming method A developer carrier has concave portions regularly arranged on the surface thereof and being rotatable with a developer thereon. A contact member is made of an elastic rubber material, is in contact with the surface of the developer carrier, and vibrates with the ro... | 03/01/2011 |
| 7881646 | Developing roller and manufacturing method thereof, process cartridge and electrophotographic image forming apparatus A developing roller suppresses scattering of toner during a developing process and provides a further higher-quality electrophotographic image. The developing roller has a mandrel, an elastic layer provided on the circumference of the mandrel, and a surface layer pr... | 02/01/2011 |
| 7813681 | Contact pressure setting apparatus for an image forming apparatus A contact pressure setting method of setting a contact pressure between contact members of an image forming apparatus. A film member is inserted into a gap between the contact members and the contact pressure is set so that a pulling force to pull out the film membe... | 10/12/2010 |
| 7702266 | Image forming apparatus provided with one-component development apparatus One embodiment of an image forming apparatus according to the present invention includes an image forming apparatus provided with a one-component development apparatus having a toner layer regulating blade for regulating a thickness of a toner layer on a surface of ... | 04/20/2010 |
| 7664441 | Developer holding member, development device, process cartridge, image forming apparatus and method of manufacturing hollow body A developer holding member includes a magnetic field generating device and a hollow body including the magnetic field generating device thereinside, and attracting a developer to an external surface thereof with magnetic force of the magnetic field generating device... | 02/16/2010 |
| 7599650 | Developer bearing member, developing device, process cartridge and image forming apparatus A developer bearing member on which grooves slanting in a thrust direction of the developer bearing member cross other grooves reversely slanting relative to the thrust direction, wherein each of the grooves and the reversely slanting grooves is slanting at an angle... | 10/06/2009 |
| 7526238 | Developing device, process cartridge and image forming apparatus moving toner particles by a phase-shifting electric field Development device includes an electrostatic conveyance device, a supply device, and a collection device. The electrostatic conveyance device moves toner on a surface thereof in a toner conveyance direction by a phase-shifting electric field. The surface has upstrea... | 04/28/2009 |
| 7444103 | Image-forming device and developing unit used therein In an image-forming device including an image-carrying member, a developer-carrying member, and a casing having an inner space in which developer is accommodated and the developer-carrying member is supported, both a pushing force and a separating force are not appl... | 10/28/2008 |
| 7415220 | Local suppression of unwanted toner emissions A developer apparatus for a printing device includes a rotatable developer carrying member which carries developer thereon. A magnet assembly is disposed in the developer carrying member. The magnet assembly includes a plurality of magnets for conveying the develope... | 08/19/2008 |
| 7401555 | Device for and method of coupling shafts, image formation apparatus, process cartridge, and belt unit A shaft coupling device for coupling a first shaft and a second shaft together includes a grip unit to be attached to the first shaft and including a grip portion configured to grip the second shaft, the grip portion having an end with notches of a length being para... | 07/22/2008 |
| 7399947 | Thermal processor with temperature compensation A thermal processor including a rotating drum including an internal heater configured to heat and maintain the drum at a desired set-point temperature, and a plurality of pressure rollers, including a first pressure roller, circumferentially spaced along a segment o... | 07/15/2008 |
| 7395017 | Image forming apparatus An image forming apparatus prints an image on paper. A developing roller supplies toner to an electrostatic latent image on a photoconductive drum to form a toner image. A developing blade forms a thin layer of toner on the developing roller. A transfer unit transfe... | 07/01/2008 |
| 7389074 | Developer holding body and developing apparatus In order to obtain the surface shape which is uniform in each of the circumferential direction and the axial direction without being deviated in one direction on the surface, a developer holding body is provided which is arranged so as to face an image holding body,... | 06/17/2008 |
| 7386258 | Coupling means for development roller of developing unit and electrophotographic image forming apparatus having the same A developer includes a developer frame in which a developing agent is contained, a development roller that is rotatably disposed inside the developer frame. Coupling means couples the development roller to the developer frame. The coupling means includes a gear memb... | 06/10/2008 |
| 7333746 | Developing device and image forming apparatus provided with same A developing device is arranged such that Dg | 02/19/2008 |
| 7330683 | Circumferential speed and developer characteristics A developing device includes a developer bearing body disposed in opposition to a latent image bearing body for bearing a latent image thereon. The developer bearing body develops the latent image using a developer. The developer has a degree of circularity greater ... | 02/12/2008 |
| 7324775 | Image forming apparatus having developing device with sealing members and method of manufacture A developing device for developing a latent image borne on an image bearing body using a developer borne on a developer bearing roller, is provided with: a housing that is for containing the developer and that has an opening; the developer bearing roller that is for... | 01/29/2008 |
| 7320822 | Electrophotographic conductive member and electrophotographic apparatus In an electrophotographic conductive member composed of at least a thermoplastic resin composition, the thermoplastic resin composition contains a thermoplastic resin, a conductive filler and a conductive-filler dispersing agent, and the conductive-filler dispersing... | 01/22/2008 |
| 7321745 | Developer supply roller and developing unit A developer supply device provided is in contact with a developer carrying device. It comprises a surface member having at least one opening elongated in an axial direction of the developer supply device. The number of cellular walls counted in the circumferential d... | 01/22/2008 |
| 7314599 | Paek embossing and adhesion for microfluidic devices A fabrication and adhesion method for a polyaryl-ether-ketone (PAEK) device, such as a microfluidic device, is disclosed. At least one glassy uncrystallized PAEK substrate is heated up to near or above the glass transition temperature to allow the substrate to cryst... | 01/01/2008 |
| 7313351 | One-component type developing apparatus The present invention provides a one-component development type developing apparatus including a rotatable electrostatic latent image holding member 1 on the surface of which an electrostatic latent image is formed, and using a toner 4 for rendering th... | 12/25/2007 |
| 7313350 | Developing apparatus and image forming apparatus A developing apparatus develops an electrostatic latent image formed on a photoconductive drum with toner into a toner image. A developing roller has a surface on which a thin layer of toner is formed. The developing roller has a ten-point height of irregularities R... | 12/25/2007 |
| 7302203 | Image forming apparatus An image forming apparatus, is provided with an image forming section, an image carrying member, a transferring section to transfer the toner image from the image carrying member to a recording sheet, and a cleaning section including a cleaning blade being in contac... | 11/27/2007 |
| 7302212 | Filter for replenisher toner particles An electrographic printer is disclosed including a replenisher system for replenishing developer material in a development chamber by transferring replenisher from a replenisher supply source through an opening into a transporter in communication with the replenishe... | 11/27/2007 |
| 7294810 | Heater, fixing device and image forming apparatus A heater includes: a hollow tube sealed hermetically and reduced in pressure, the interior of the hollow tube being divided by at least one partition wall into a plurality of regions arranged side by side in a longitudinal direction of the tube; an electron source p... | 11/13/2007 |
