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| Number | Title | Issue Date |
| 8165508 | Developer loading method, loaded developer accommodating container, developer replenishment device, and image forming apparatus A method for loading a replenishment developer into a developer accommodating container such that when the replenishment of the replenishment developer inside the loaded developer accommodating container is started, the developer composed of a toner and a carrier, o... | 04/24/2012 |
| 8081908 | Toner bottle for electrostatic latent image developing A toner bottle containing a cylindrical toner container having therein a toner comprising at least a resin, a colorant and an external additive, the toner container having a toner discharge port on an end thereof and a rotation axis along the cylindrical toner conta... | 12/20/2011 |
| 8059994 | Image forming unit and image forming apparatus An aspect of the invention provides an image forming unit that comprises: a developer container configured to contain a developer; and a developer supplier including at least a developer carrier configured to supply the developer, contained in the developer containe... | 11/15/2011 |
| 8036577 | Image forming method and image forming apparatus An objective is to provide an image forming method and an image forming apparatus exhibiting neither failure in lack of line image nor image defect in halftone images, together with extremely high image quality and longer lifetime. Disclosed is an image forming meth... | 10/11/2011 |
| 8010021 | Developing cartridge having a plurality of developers with different material properties and image forming apparatus having the same A developing cartridge includes an image receptor which spreads developer on a printing medium, a developer storing part which stores a plurality of developers having a different material property and a different supplying order according to the concerned material p... | 08/30/2011 |
| 8000638 | Developing device using two-component developing agent and image forming apparatus provided with same A developing device that efficiently adjusts the amount of charge on the developing agent without being affected by external conditions, and that continuously supplies a developing agent with the appropriate toner concentration and amount of charge. An ionized air f... | 08/16/2011 |
| 7650102 | Method, device and computer program for producing a developer mixture in an electrographic developer station In a method for generating a developer mixture in a developer station of an electrographic printing device, magnetizable carrier particles and toner are simultaneously filled into the developer station, and in case of an error or an aborting of the filling a continu... | 01/19/2010 |
| 7366431 | Developing device, process cartridge and image forming apparatus In accordance with the present invention, a transparent or semitransparent window is formed in a developing device or a process cartridge to allow one to see the inside of the developing device via the window from the outside. The window may preferably be formed in ... | 04/29/2008 |
| 7359660 | Developing device, process cartridge and image forming apparatus loaded therewith A developing device of the present invention is operable with a two-ingredient type developer by mixing and agitating toner grains and carrier grains to thereby electrify the toner grains. At least the carrier grains are sealed in a space formed in the developing de... | 04/15/2008 |
| 7346286 | Method and apparatus for image forming effectively detecting deterioration of developer A developer container includes a developer container configured to contain a developer including a toner and a carrier, a developer delivering mechanism configured to deliver the developer toward an image bearing member of an image forming apparatus, and a detecting... | 03/18/2008 |
| 7315715 | Apparatus, method, and program for image forming An exemplary embodiment of the present invention, includes an image forming apparatus comprising a toner storage device storing a toner, an image forming device including a developer, and a toner transfer device provided between the toner storage device and the imag... | 01/01/2008 |
| 7266332 | Image forming apparatus for recycling toner In a tandem type color image forming apparatus having a function which collects a residual toner for recycle, a particle diameter distribution of a carrier is expressed as that a ratio of the number of carrier particles whose particle diameter is not smaller than φ... | 09/04/2007 |
| 7248805 | Image forming apparatus and developing unit An electrophotographic image forming apparatus includes a developing device including a developer reservoir for accommodating a mixed developer. The mixed developer includes a plurality of types of toner having a generally identical hue and different reflection dens... | 07/24/2007 |
| 7190914 | Image heating apparatus having heater for externally heating fixing roller The image heating apparatus for heating a toner image formed on a recording material, includes a rotatable member; heating device for heating an outer peripheral surface of the rotatable member, the heating device including a heater for forming a heating nip portion... | 03/13/2007 |
| 7183034 | Image forming method, image forming apparatus and toner cartridge The present invention provides a tandem-type image forming method using a trickle developing system, wherein the average circularity of a toner contained in at least a supplementary developer used for appropriately supplying a developer to a developing device is in ... | 02/27/2007 |
| 7162187 | Image forming apparatus and image forming method In an image forming apparatus, a toner image is formed on a photosensitive element and a transfer roller, which carries a transfer medium, is pressed against a photosensitive element at a pressure of from 20.4 N/cm2 to 200 N/cm2. ... | 01/09/2007 |
| 7158730 | Image forming apparatus, process cartridge, developing unit, and image forming method A carrier and a dummy toner are stored in a developing unit of a process cartridge in a brand new status. A plurality of process cartridges corresponding to a plurality of color toners is used in common. The color toners are respectively supplied to the developing u... | 01/02/2007 |
| 7123864 | Developing device using electrostatic transport member A toner supply device for preventing adverse influence caused by a charging failure of toner without scattering toner and generating ozone due to corona discharge and realizing low potential development according to an ETH phenomenon. The toner supply device is prov... | 10/17/2006 |
| 7079798 | Toner transfer back suppressing color image forming apparatus A multi color image forming apparatus includes a plurality of stations arranged side by side for forming unique mono-color toner images using mono-color developers each having a different mono-color toner. Each of the plurality of stations includes an image bearing ... | 07/18/2006 |
| 7050745 | Two-component developer unit of electrophotographic image forming apparatus having lifting guide portion A two-component developer unit of an electrophotographic image forming apparatus includes a developer rectifier having a lifting guide portion and a developer collection guide portion. The lifting guide portion guides a developer agitated by an agitating unit upward... | 05/23/2006 |
| 6998210 | Electrophotographic photosensitive member, electrophotographic apparatus, and process cartridge The present invention relates to an electrophotographic photosensitive member comprising a surface layer excellent in adhesiveness and abrasion resistance, having a hardness and a toughness, and not degrading the charge transport property. One aspect of the present ... | 02/14/2006 |
| 6936394 | Replenishing developer and developing method An electrostatic latent image on an image-bearing member is developed with a two-component developer comprising a toner and a carrier stored in a developer vessel while supplying as required a replenishing developer to the developer vessel. The replenishing develope... | 08/30/2005 |
| 6841327 | Developing assembly, image-forming apparatus and process cartridge In a developing assembly including a two-component developer container and a developer-carrying member, the developer-carrying member has at least a substrate and a resin coat layer formed on the substrate surface, and the resin-coat layer contains at least a binder... | 01/11/2005 |
| 6776099 | Central-ink supply system for multi-printer systems A multi-printer system comprising: a plurality of imaging apparatus, each said apparatus comprising at least one liquid-toner reservoir, containing liquid toner; a central source of toner concentrate; a toner concentrate conduit which connects the central source to ... | 08/17/2004 |
| 6687474 | Developing apparatus, image formation apparatus, and process cartridge A developing apparatus, an image formation apparatus and a process cartridge is provided. Even though the sealing materials of the initial developer container are stripped off in such a way that the process cartridge having the developing apparatus is til... | 02/03/2004 |
| 6679594 | Imaging media cartridge having a reserve chamber An imaging media cartridge for use in an imaging apparatus includes a first imaging media reservoir chamber and a second imaging media reservoir chamber. A removable barrier is disposed between the first imaging media reservoir chamber and the second imag... | 01/20/2004 |
| 6587661 | Image forming apparatus A developing apparatus is provided in which the concentration of a toner in a developer material and the amount of developer material is kept constant by the use of simple mechanical parts so as not to deteriorate the electrification performance of the de... | 07/01/2003 |
| 6577824 | Apparatus and method for supplying new and recovered toner to a developing device An image forming apparatus and method cause a connecting/conveying device to convey a recovered toner from a cleaner part to a recovered toner housing to house therein the recovered toner, and cause a control device to separately control a recovered toner... | 06/10/2003 |
| 6542708 | Method of replenishing developer with zinc stearate A method of replenishing developer, wherein the replenisher contains carrier particles coated with zinc stearate.... | 04/01/2003 |
| 6466749 | Adjustable developer ratio forming method and apparatus A variable developer forming method and apparatus that replenishes toner in an image forming apparatus, including a controller that determines a first supply amount and a second supply amount based on an analysis of a document to be printed, a toner stora... | 10/15/2002 |
| 6167227 | Developing unit and image forming apparatus A developing unit and an image forming apparatus includes drive and control mechanisms for the conveyance of collected toner and fresh toner in an uncomplicated structure and an uncomplicated toner supplying roller structure for the reduction in manufactu... | 12/26/2000 |
| 6118951 | Image forming apparatus and toner replenishing device therefor An electrophotographic image forming apparatus including a developing unit operable with a one- or two-ingredient type developer and a device for replenishing toner to the developing unit included in the apparatus are disclosed. A plurality of toner bottl... | 09/12/2000 |
| 6021294 | Toner feed means for a developer station of a printer or a photocopier A pneumatic toner feed mechanism for a developer station of a printer or copier is disclosed. The feed mechanism includes at least two storage containers which are separately allocated to the developer chambers of the developer station. The toner storage ... | 02/01/2000 |
| 6017116 | Method and device for feeding toner particles in a printer unit A method and device for charging and feeding toner particles in a printing device include at least one printer unit. The toner unit includes at least one container, one back electrode and one control electrode provided with apertures and electrodes. The t... | 01/25/2000 |
| 5915155 | Toner replenishing and developer replacing device for a developing unit of an image forming apparatus In an image forming apparatus, a developing unit for forming an image by use of a two-ingredient type developer, i.e., toner and carrier mixture includes a container for replenishing fresh toner and for replacing carrier deteriorated due to aging or a dev... | 06/22/1999 |
| 5758241 | Developing device for an image forming apparatus A developing device for an image forming apparatus and of the type using a developer consisting of toner and magnetic particles is disclosed. While a developing sleeve conveys the developer deposited thereon, toner is automatically replenished to the deve... | 05/26/1998 |
| 5640185 | Image recording apparatus having aperture electrode with tension application means and tension increasing means and opposing electrode for applying toner image onto image receiving sheet An image recording apparatus having a flexible aperture electrode body, a toner carrier roller, a toner case, and an electrically conductive opposing electrode. The aperture electrode selectively allows toners supplied by the toner carrier roller to pass ... | 06/17/1997 |
| 5617189 | Developing unit for thoroughly supplying mixed toner in an electrostatographic printer A developing unit including a housing having an opening defining a developing zone, an applicator for applying particulate developer through the opening towards an electrostatographic image to be developed, and a paddle wheel for agitating developer withi... | 04/01/1997 |
| 5604576 | Recycle developing method and apparatus A recycle developing method utilizes the steps of (1) providing a developing vessel containing a starting developer composed of an electroscopic toner and a magnetic carrier; (2) transferring toner from the developing vessel to a photosensitive material h... | 02/18/1997 |
| 5572299 | Developing device using two-component developer A developing device has a vessel for holding a two-component developer composed of a toner component and a magnetic component. A magnetic roller is rotatably provided within the vessel to bring the developer to a developing zone for a development of an el... | 11/05/1996 |
