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| Number | Title | Issue Date |
| 8180264 | Image forming unit and image forming apparatus An image forming unit and an image forming apparatus comprising the image forming unit are supplied capable of preventing toner in bottom part of toner accommodating room from accumulating so as to obtain toner image with good quality. In the image forming unit, a d... | 05/15/2012 |
| 8180263 | Developing apparatus and image forming apparatus that incorporates the developing apparatus A developing apparatus is incorporated in an image forming apparatus. An electrostatic latent image is formed on an image bearing body. A developing member supplies a developer material to the electrostatic latent image. A supplying member supplies the developer mat... | 05/15/2012 |
| 8175503 | Developing device and image forming apparatus with intermediate roller for assuring efficient circulation of developer A developing device is provided with a developing roller arranged to face a photoconductor for forming an electrostatic latent image and adapted to supply a toner to the photoconductor, an agitating member for agitating a developer, a supply roller that holds the de... | 05/08/2012 |
| 8150301 | Developing apparatus A developing apparatus includes a developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with a developer, and a developer feeding member, for supplying the developer to the carrying member. The develop... | 04/03/2012 |
| 8139990 | Developing device and image forming apparatus A developing device including a housing, toner a developing roller, and a feed roller in pressure contact with the developing roller so as to form a nip portion and which feeds toner to the developing roller. The developing device including a feed stabilizing member... | 03/20/2012 |
| 8131191 | Image forming apparatus and method for developing electrostatic latent image Provided are an image forming apparatus equipped with a hybrid developing apparatus including a toner-collecting developer-carrying member and a method for developing an electrostatic latent image, which apparatus is capable of stably forming high definition images ... | 03/06/2012 |
| 8116668 | Toner supplying roller, developing apparatus, and image forming apparatus A toner supplying roller which is used in a developing apparatus and has the following characteristics: (1) an average diameter of a foam cell opening portion on a surface of a foam elastic member is 100 to 800 μm, (2) an unopened cell closed by a skin layer of a f... | 02/14/2012 |
| 8112019 | Developer supply device A developer supply device, comprising: a carrying substrate having electrodes arranged along a developer transport path at predetermined intervals to carry a developer through a traveling electric field, wherein the carrying substrate comprises: a rigid upper carryi... | 02/07/2012 |
| 8095052 | Developer supply device A developer supply device, comprising a casing having: a developer reservoir at a bottom part of the casing; a developer amount adjustment chamber provided close to a side of the developer reservoir to communicate with a top portion of the developer reservoir; and a... | 01/10/2012 |
| 8073369 | Development device transferring only a toner layer to a developing roller and image apparatus using the same A development device includes a developing roller composed of an elastic body. An intermediate roller made of metal is disposed closely to the developing roller so as to face the developing roller. A magnetic roller is disposed closely to the intermediate roller so ... | 12/06/2011 |
| 8059996 | Developing apparatus and image forming apparatus A developing apparatus performs image visualization processing by electrostatically adhering toner carried on a developer carrying member onto an electrostatic latent image formed on an image carrying member. In the developing apparatus, the toner to be supplied to ... | 11/15/2011 |
| 8045903 | Roller for use with image forming apparatus A developing device of an electrophotographic image forming apparatus has a first roller and a second roller disposed in a peripheral contact with the first roller to define a contact region therebetween so that the first roller is capable of supplying and collectin... | 10/25/2011 |
| 8036581 | Developing device to smoothy dispense developer and image forming apparatus having the same A developing device capable of smoothly dispersing a developer in a development container and an image forming apparatus having the developing device. The developing device includes a development container which contains a developer and has an opening, a development... | 10/11/2011 |
| 8036580 | Polyurethane foam toner supplying roller and method for manufacturing the same A toner supplying roller is provided in which a polyurethane foam layer can be obtained without decreasing the reactivity of the polyurethane material, and in which contamination by a catalyst remaining in the polyurethane foam layer is suppressed, so that a good im... | 10/11/2011 |
| 8010023 | Developing device, process cartridge and image forming apparatus A developing device for developing an electrostatic latent image on an image carrier by supplying a one-component developer to the image carrier. Good images can be obtained over long periods of time, without printing history becoming apparent on account of residual... | 08/30/2011 |
| 7991335 | Developer supply device and image forming apparatus An apparatus includes an upstream transport surface TSa which, while facing a circumferential surface DS of a developing roller, is disposed upstream of an area (developing area) in the vicinity of a latent image forming surface LS, and a downstream transport surfac... | 08/02/2011 |
| 7979013 | Developing device of image forming apparatus A developing device that can be formed at low cost and without increasing the complexity of a die structure of a casing comprises a development roller, a supply roller, a developing portion having an agitating member, a toner hopper disposed above the developing por... | 07/12/2011 |
| 7970323 | Developing device, developer therefor, and image forming method and apparatus, and process cartridge using the developing device A developing device including a developer bearing member configured to feed a developer to an image bearing member; a developer supplying member, which is contacted with the developer bearing member at a first nip while opposed thereto and which is configured to sup... | 06/28/2011 |
| 7962075 | Nylon12-fiber-implanted conductive roller, developing unit having the same, and image forming apparatus having the same Disclosed is a toner supply apparatus that can be employed in an image forming apparatus to supply toner. The toner supply apparatus can include an electrically conductive body, on the surface of which multiple fibers is arranged. The fibers may include nylon 12 fib... | 06/14/2011 |
| 7929890 | Image formation device and developer supply device There is provided an image formation device, comprising: a holding body configured to hold thereon developer and to have a center axis extending in a main scanning direction; and a developer supply unit configured to supply the developer to the holding body through ... | 04/19/2011 |
| 7890031 | Developing device and process cartridge used in image forming apparatus The invention provides a developing device, a process cartridge and an image forming apparatus that allow preventing abrupt variations in toner charge on a developing roller, caused by intrusion, into a nip, of toner accumulated above a regulating member of the deve... | 02/15/2011 |
| 7890032 | Developing apparatus having a scraping member A developing apparatus has a developer carrying member carrying a developer thereon, a developer supplying member for supplying the developer to the developer carrying member, and a scraping member for contacting the developer carrying member upstream of the closest... | 02/15/2011 |
| 7881647 | Xerographic imaging modules, xerographic apparatuses, and methods of making xerographic imaging modules Xerographic imaging modules, xerographic apparatuses including the xerographic imaging modules and methods of making the xerographic imaging modules are disclosed. An embodiment of the xerographic imaging modules includes a photoreceptor roll having a photoconductiv... | 02/01/2011 |
| 7865118 | Developing device for image forming apparatus and process cartridge having the same A developing device that can reliably supply toner from a toner supply roller to a developing roller and that does not generate scraping irregularities in the toner thin layer on the developing roller, and a process cartridge and an image forming apparatus having th... | 01/04/2011 |
| 7860436 | Image forming apparatus with toner supplying roller A developing device has a developer bearing member, a housing adapted to accommodate a developer, and a supply roller adapted to supply the developer within the housing for the developer bearing member. The supply roller has an outer circumferencial foam layer made ... | 12/28/2010 |
| 7860437 | Developer container, developing apparatus and process cartridge A developer container for an image forming apparatus includes a developer accommodating chamber, provided with an opening, for accommodating a developer to be supplied to the opening; a feeding member, provided in the developer accommodating chamber and having an el... | 12/28/2010 |
| 7831182 | Developing device, image forming apparatus, and development error detecting method A disclosed developing device includes a developing roller; a supply roller that is in contact with the developing roller and configured to supply toner to the developing roller; a current measuring unit configured to measure an electric current that flows from the ... | 11/09/2010 |
| 7783236 | Developing unit having developer feeding plate and image forming apparatus having the same A developing unit includes a developer feeding unit which feeds developer to an image receptor, a casing which supports the developer feeding unit and includes a developer storing part provided in an area to face the developer feeding unit and to store the developer... | 08/24/2010 |
| 7773923 | Developing apparatus and image forming apparatus A developing apparatus in which a toner has a volume-average particle diameter R that is in a range of 4.0 μm≦R≦6.2 μm, a developing roller has an arithmetic mean roughness Ra (μm) that is not more than 0.10 times the volume-average particle diameter R of the... | 08/10/2010 |
| 7764911 | Developer unit, process device and image forming apparatus A developer unit according to one aspect of the invention includes: a developer accommodation member configured to accommodate a developer, the developer having charging polarity to a first polarity; a developing roller arranged at the developer accommodation member... | 07/27/2010 |
| 7761041 | Developing apparatus, image forming apparatus and method for forming image using opposite polarity particles The present invention provides a developing apparatus using a two-component developer, an image forming apparatus, and a method of forming an image capable of forming a high quality image characterized by stable suppression of carrier deterioration and absence of a ... | 07/20/2010 |
| 7738821 | Developer supply device and image forming apparatus An apparatus includes an upstream transport surface TSa which, while facing a circumferential surface DS of a developing roller 33, is disposed upstream of an area (developing area) in the vicinity of a latent image forming surface LS, and a downstream transp... | 06/15/2010 |
| 7706729 | Developing device with paddle member and image forming apparatus An image forming unit includes an image supporting member for forming a latent image; a developer supporting member for attaching developer to the latent image to develop the latent image; a developer supply member facing the developer supporting member for supplyin... | 04/27/2010 |
| 7702267 | Apparatus and method for transfer of image forming substances The present invention relates to a device or method which may reduce starvation in the transfer of an image forming substance to a developing location within an image forming apparatus. The device may include a first roller having a surface which is capable of suppl... | 04/20/2010 |
| 7697875 | Development device for developing an electrostatic latent image formed on an image carrying member into a visible image An image forming apparatus includes either one of a process cartridge and a development device. The process cartridge is attachable to and detachable from the image forming apparatus, and integrally includes the development device. The development device includes a ... | 04/13/2010 |
| 7697874 | Developer supply roller and image forming apparatus To provide a developer supply roller including: a shaft core; and an elastic layer over the shaft core, wherein the elastic layer is composed of at least a first elastic layer and a second elastic layer, the first elastic layer and second elastic layer made of elast... | 04/13/2010 |
| 7697873 | Development apparatus, image forming apparatus and developing method that employ a magnetic brush In a development apparatus of the hybrid method using a component developer, a development apparatus and a development method are provided that prevent the reduction of density or the occurrence of residual images (ghost images) and can carry out good image forming ... | 04/13/2010 |
| 7668490 | Developing apparatus having developer supplying member in spaced apart relationship with developer carrying member A developing apparatus has a developer carrying member carrying a developer thereon, a developer supplying member for supplying the developer to the developer carrying member, and a scraping member for contacting the developer carrying member upstream of the closest... | 02/23/2010 |
| 7664442 | Developing apparatus A developing apparatus including: a developer carrying member carrying a developer with which an electrostatic image on an image bearing member is developed; a developer supplying/removing member having a conductive member and an insulating member on the surface the... | 02/16/2010 |
| 7643780 | Developing cartridge and image forming apparatus having the same A developing cartridge usable with an image forming apparatus, the developing cartridge includes a supporting frame, a developing member which is supported in the supporting frame, and to supply the developer to an electrostatic latent image of a photosensitive body... | 01/05/2010 |
