Did You Know...
...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!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8145100 | Process cartridge including developing unit and incorporated in image forming apparatus A process cartridge for use in an image forming apparatus includes an image bearing member and a developing unit. The developing unit includes a developer bearing member to bear developer including toner and carrier, a casing forming a developer container containing... | 03/27/2012 |
| 8135313 | Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw A toner transport screw that is capable of maintaining a smooth and stable transport function. The toner transport screw, in which a helical blade is disposed on the circumference of a rotating shaft, has at least one spiral direction reversal part formed by connect... | 03/13/2012 |
| 8121523 | Developer station with tapered auger system A developer station and method for an electrographic printer is provided that reduces developer agitation. The developer station includes a sump for holding a reservoir of magnetic developer including a toner and carrier and a magnetic auger mounted above the sump a... | 02/21/2012 |
| 8112018 | Developing unit and an image forming apparatus A developing unit includes a developing unit body having a toner inlet and a developing roller mounted in the developing unit body. A toner feeding unit for feeding is provided to feed the toner from the toner inlet to the developing roller. A doctor blade is integr... | 02/07/2012 |
| 8103195 | Toner agitating unit, toner hopper, process cartridge, and image forming apparatus A toner agitating unit is located in a toner hopper that houses toner used for developing a latent image. The toner agitating unit includes a rotary shaft and an agitating member. The agitating member is a flat plate made of resin. The agitating member has a plurali... | 01/24/2012 |
| 8014703 | Development device and image forming apparatus The development device includes a development member and a circulation member. The development member develops an electrostatic latent image formed on a latent image carrier with a developer including toner and a carrier to make the electrostatic latent image visibl... | 09/06/2011 |
| 7937027 | Developing device and image forming apparatus A developing device includes a rotator that rotates around a shaft, and a bearing element that supports the shaft to a housing. A sliding element formed of a composite material that contains self-lubricating thermoplastic olefin resin as a base material is used as t... | 05/03/2011 |
| 7925189 | Rotator for powder conveyance and toner cartridge A rotator for powder conveyance includes a substantially linear rotary supporting shaft and plural stirring/conveying pieces. The plural stirring/conveying pieces are separated from each other and arranged in a longitudinal direction along the rotary supporting shaf... | 04/12/2011 |
| 7885581 | Developer transferring device, developing device, process unit, and image forming apparatus An image forming apparatus capable of reducing the number of toner concentration detection errors caused by variation in the volume of a toner includes a reverse vane for transferring developer in an opposite direction and protruding from the rotary shaft member in ... | 02/08/2011 |
| 7848683 | Powder delivery member, and powder delivery apparatus, frame apparatus and image forming apparatus using the same, and manufacturing apparatus for manufacturing powder delivery member A powder delivery member includes: a flexible axial core portion; and a powder delivering flexible vane portion formed on an outer periphery of the axial core portion. ... | 12/07/2010 |
| 7801466 | Developing device and image forming apparatus A developing device includes a container, a stirring and transferring unit, a replenishing unit, and a discharging mechanism. The container contains developer including toner and carrier. The stirring and transferring unit is located in the container to mix and stir... | 09/21/2010 |
| 7796921 | Image forming apparatus capable of reducing an occurrence of developer depletion in a development unit An image forming apparatus includes an electrostatic latent image carrier carrying an electrostatic latent image and a development unit that develops the electrostatic latent image. The development unit includes a developer carrier, first, second, and third develope... | 09/14/2010 |
| 7792466 | Image forming apparatus and developing device In a developing device, a receive-convey screw conveys a developer received from a developer carrier. The receive-convey screw includes a receive-convey blade including a lower, outer circumferential end located in a downstream end of the receive-convey blade in the... | 09/07/2010 |
| 7792467 | Dual channel apparatus for transporting powder in an electrostatographic printer An apparatus and method for distributed mixing and transport of toner and powders in an electrostatographic printer containing at least powder and magnetic carrier. The apparatus includes a powder conveying apparatus for transporting powder in a developer station in... | 09/07/2010 |
| 7783233 | Developing device including improved conveying device, process cartridge and image forming apparatus using the same A developing device for an image forming apparatus that uses developing agent supplied from a supplying device. The developing device includes a developing roller configured to bear the developing agent thereon and develop a toner image on an image bearing member. T... | 08/24/2010 |
| 7693462 | Process cartridge and image forming apparatus using image developer providing reduced toner cohesion An image developer, including a rotatable developer bearer; a rotatable developer feeding member contacting the developer bearer; a developer container located above the developer feeding member, wherein the developer container includes a pressure reducing member co... | 04/06/2010 |
| 7636536 | Image forming apparatus having an improved developer conveying system An image forming apparatus includes a conveying pipe configured to convey a developer and a magnetic field generation mechanism configured to generate a magnetic field inside the conveying pipe to affect the developer. The magnet is formed to have lower magnetic int... | 12/22/2009 |
| 7580657 | Developing device in image-forming device A developing device includes first-third sections, a developing roller, a partitioning wall and a toner concentration detector. The first-third sections have first-third screw augers respectively. The partitioning wall isolates the third section from the first secti... | 08/25/2009 |
| 7577383 | Apparatus and method for transporting powder to an image device of an electrostatographic printer An apparatus and method for dispensing toner in an electrostatographic printer includes an apparatus for transporting powder into a developer station containing at least powder and magnetic carrier including a conveyance housing divided into a mixing space adjacent ... | 08/18/2009 |
| 7558514 | Toner supply device Disclosed is a toner supply device including a toner container section (21b), a rotating shaft (31) provided in the toner container section (21b), and a stirring member (32) for stirring and feeding toner T to a supply openi... | 07/07/2009 |
| 7529508 | Developing cartridge and electrophotographic image forming apparatus including the same A developing cartridge includes an agitator including a pair of ribs to effectively force a toner to a center of a flexible agitator film. In the developing cartridge of an electrophotographic image forming apparatus including a housing containing the toner, a devel... | 05/05/2009 |
| 7444104 | Variable energy development station using a magnet to restrict developer material flow in the development station An improved development station extends the useful life of toner in the housing and increases the number of images developed by the developer supply. The improved development station includes a development station housing having a developer sump, a toner supply for ... | 10/28/2008 |
| 7437105 | Developing device and image forming apparatus A developing device includes a developer bearing body that partially faces the inside of a developer storing chamber, a first developer carrying member disposed in the chamber together with the body, and a second developer carrying member disposed in the chamber tog... | 10/14/2008 |
| 7426361 | Developer mixing apparatus having four ribbon blenders A developer mixing apparatus, comprising: a housing including a chamber that holds developer; a first ribbon blender disposed within the chamber and elongate along a first longitudinal axis; and, a second ribbon blender disposed within the chamber and elongate along... | 09/16/2008 |
| 7421233 | Developing device and image forming apparatus A developing device (100) according to the present invention is provided with a housing (102) for holding toner, conveying screws (104, 105) arranged in the housing (2) and each including a rotary shaft (107) and a blade (106 | 09/02/2008 |
| 7391997 | Developer apparatus and image forming apparatus having an auxiliary collecting member provided in a gap between feed blades An image forming apparatus collects toner remaining on a photoconductive drum after a toner image is transferred to paper, and collects the impurities (paper dust) included in the toner collected in an image forming apparatus which reuses the collected toner by a mi... | 06/24/2008 |
| 7391998 | Developing apparatus The present invention provides a developing apparatus to be provided in a quick start up electrophotographic image forming apparatus that can efficiently prevent generation of unevenness by a screw pitch in a short period of time. The developing apparatus rotates a ... | 06/24/2008 |
| 7369797 | Developing apparatus and process cartridge with protrusions between the bearing and the shaft A developing apparatus includes a developer container for storing a developer which contains toner, a rotary member for stirring and conveying the developer, and a bearing member to hold the rotary member in the developer container. At least one of the bearing membe... | 05/06/2008 |
| 7366449 | Developing unit, process cartridge, and image forming apparatus A developing unit includes a developer container that includes an opening and holds a developer; a first screw that stirs and conveys the developer, and that supplies the developer to a developing roller; a second screw that stirs the first developer, and that conve... | 04/29/2008 |
| 7366451 | Developer conveyance screw A developer feeding screw, which includes a shaft and a helical shape portion around said shaft, for feeding a developer in a direction of an axis of said shaft by rotation about the axis, said feeding screw, the improvement residing in that: ... | 04/29/2008 |
| 7366450 | Cartridge and method for filling a consumable into the cartridge A cartridge includes a case that accommodates a consumable therein, a land area that protrudes from a surface of the case, and a recess that is formed on a reverse side of the surface at a position corresponding to the land area, a reverse side of a deepest portion ... | 04/29/2008 |
| 7356288 | Developing apparatus having improved agitation effect A developing apparatus for use in an image forming apparatus includes a developing roller, a developing agent, a refilling port, a transport member, and an agitation enhancer. The developing agent includes toner particles and carrier particles and is refilled to the... | 04/08/2008 |
| 7349657 | Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method A developer feeding member for use with an electrophotographic image forming apparatus to feed a developer accommodated in a developer accommodating portion, includes a shaft for receiving a driving force to rotate when the shaft is mounted in the developer accommod... | 03/25/2008 |
| 7346298 | Developing device, process cartridge, and electrophotographic image-forming apparatus A developing device includes a developer container divided into a developing section and a mixing section in which developer is conveyed in the opposite directions. A conveying member which conveys the developer in the longitudinal direction is disposed only in the ... | 03/18/2008 |
| 7333753 | Developer housing design with improved sump mass variation latitude A developer system for developing an image in an electrophotographic printing machine, including: a developer housing having a toner sump containing developer material; a magnetic development member rotatably mounted in the housing for transferring toner particles t... | 02/19/2008 |
| 7333755 | Developing device having developer supply unit and image forming apparatus A developing device includes a developing unit for attaching developer to a latent image formed on an image bearing body to form a visible image; a developer supply unit for supplying the developer to the developing unit; and a plurality of developer transporting un... | 02/19/2008 |
| 7319828 | Developing agent detecting mechanism section of developing apparatus A development apparatus includes an auger conveyor member for stirring and conveying developer, the gravity of the developer being eccentrically distributed with respect to a center of rotation, a drive transfer member for driving and rotating the auger conveyor mem... | 01/15/2008 |
| 7311438 | Agitator, image forming apparatus having the same and method for agitating An agitator according to the present invention comprises a container for storing a compound of at least two materials, and an agitation unit mounted in the container to agitate the compound. The agitation unit may comprise a plurality of agitators of which at least ... | 12/25/2007 |
| 7313348 | Xerographic developer unit having variable pitch auger A developer system, including: a developer housing having a sump containing developer material including toner particles; a developer member rotatably mounted in the housing for transferring toner particles to a latent image on the photoreceptive member in a develop... | 12/25/2007 |
| 7305206 | Xerographic developer unit having variable pitch auger A developer system, including: a developer housing having a sump containing developer material including toner particles; a developer member rotatably mounted in the housing for transferring toner particles to a latent image on the photoreceptive member in a develop... | 12/04/2007 |
