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| Number | Title | Issue Date |
| 8190072 | Developing device and image forming apparatus having the same A developing device includes a container storing a two-component developer including a toner and a carrier, a toner carrying body carrying the toner in the container and supplying the toner to a predetermined image carrying body by rotation, a restricting member hel... | 05/29/2012 |
| 8185024 | Developing unit having a magnet member and image forming apparatus including the developing unit A developing unit including a retainer receiving portion for receiving a developer retainer, a first agitation portion adjacent to the retainer receiving portion, a second agitation portion adjacent to the first agitation portion, a first conveyance member received ... | 05/22/2012 |
| 8150300 | Method for manufacturing mold and blade for electrophotographic apparatus, and developer amount controlling blade A mold for use in producing a molded body of an elastomer has a holding layer and a releasing layer on an inner periphery surface of a main body of a die. The releasing layer is formed of an addition two-component liquid silicone having a polysilazane-based or polys... | 04/03/2012 |
| 8145104 | Metering skive for a developer roller A metering skive for a developer roller which is adapted to shear and/or meter developer at a developer-skive interface while minimizing compression of the metered developer. The metering skive is adjustable to various shear angles and has a geometry which enables a... | 03/27/2012 |
| 8135315 | Developer regulating member in a developing unit, process cartridge including same, and image forming apparatus incorporating same A developing unit includable in a process cartridge and in an image forming apparatus includes a developer bearing member including a magnetic field generator and a nonmagnetic hollow member, a developer container, an agitation/conveyance member, a developer regulat... | 03/13/2012 |
| 8095050 | Developer level control blade and process for manufacturing developer level control blade A developer level control blade is provided which can form a developer layer on a developer carrying member in a proper thickness and in a uniform state and can keep the developer, in particular, color toner particles from melt-adhering to the charge control face so... | 01/10/2012 |
| 8019257 | Developer-controlling member, manufacturing method thereof, developing machine using the developer-controlling member, image forming apparatus or printer using the developing machine, and jointed plate A developer-controlling member includes a first plate (36) and a second plate (35) attached to the first plate (36), the first and second plates (36, 35) being formed to extend in a longitudinal direction of a developing roller (30... | 09/13/2011 |
| 8019258 | Developing apparatus An amount-of-developer regulating apparatus configured to restrict the amount of developer carried on a developer bearing member. The amount-of-developer regulating apparatus includes a flexible developer amount regulation member having a contact portion configured ... | 09/13/2011 |
| 8014705 | Developing device, image supporter unit, and image formation apparatus A developing device includes: a developer supporter that includes: a magnet member that has a plurality of magnetic poles; and a cylinder member; and a thickness regulation member wherein, of the plurality of the magnetic poles, a magnetic pole, which is placed at a... | 09/06/2011 |
| 7953352 | Movable metering skive for a development station of a reproduction apparatus A magnetic brush development station for a reproduction apparatus has a housing forming, at least in part, a reservoir for developer material; a developer roller mounted within the housing for delivering developer material to a dielectric support member in a develop... | 05/31/2011 |
| 7933540 | Trimming system for stabilizing image quality for high performance magnetic brush development A device for metering developer material to a predefined developer material bed height on a donor member, including a trim bar being mounted a predefined spacing from the donor member; and a magnetic member positioned adjacent and along the length of the trim bar, t... | 04/26/2011 |
| 7899372 | Developing device and image forming apparatus A developing device for an image forming apparatus includes both a layer height restricting blade for controlling a thickness of the developer layer on a developer supply roller, and a spike-height restricting blade. The spike-height restricting blade is located dow... | 03/01/2011 |
| 7856199 | Image forming apparatus An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a rotatable developer carrying member, provided opposed to the image bearing member, for carrying a developer including toner and a carrier to a position where the... | 12/21/2010 |
| 7840168 | Developing apparatus An amount-of-developer regulating apparatus configured to restrict the amount of developer carried on a developer bearing member. The amount-of-developer regulating apparatus includes a flexible developer amount regulation member having a contact portion configured ... | 11/23/2010 |
| 7773922 | Image forming apparatus An image forming apparatus for developing an electrostatic image formed on a photosensitive drum 1 with a developer, so as to form an image includes: a rotatable developing sleeve 44; a developing blade 46 for restricting a layer of a developer ... | 08/10/2010 |
| 7729646 | Image forming apparatus An image forming apparatus includes a plurality of vibration members configured to vibrate a regulating member that regulates a developer layer thickness on a developer bearing member, and a control unit that can execute a vibration mode which vibrates the plurality... | 06/01/2010 |
| 7697872 | Developing cartridge including an improved developer regulating member and image forming apparatus having the same An image forming apparatus includes: a main body, a photosensitive body spreading developer on a printing paper, a developing roller supplying the photosensitive body with the developer, a developer regulating member regulating the amount of the developer supplied f... | 04/13/2010 |
| 7650104 | Developing apparatus including developer carrying member and developer regulating member with surface roughness parameters A developing apparatus includes: a developing sleeve that carries a mono-component developer; and a developing blade that abuts on the sleeve to regulate a layer thickness of the developer on the sleeve, wherein surface roughness parameters of the sleeve satisfy: 3.... | 01/19/2010 |
| 7643779 | Developer transporting amount controlling member, developing apparatus, imaging apparatus, and method for exchanging developing unit A developer transporting amount controlling member that is used in a developing apparatus is disclosed. The developing apparatus includes a recording unit having a surface that sustains an electrostatic latent image and attracts a developer, a developer transporting... | 01/05/2010 |
| 7620351 | Developing device and image forming device A developing device comprises a stirring roller 7 having stirring blades 7a for stirring a developer, a developing roller 3 for transferring the developer to an electrostatic latent image, a control member 4 for controlling the amo... | 11/17/2009 |
| 7515856 | Image forming apparatus, a process cartridge provided in the apparatus, and a developing device included in the process cartridge of the apparatus An image forming apparatus includes a process cartridge with an image bearing member configured to bear an image on a surface thereof. A developing device is configured to develop the image formed on the image bearing member by using a developer accommodated in a ch... | 04/07/2009 |
| 7505719 | Composite trim bar for developer system A device for metering toner to a predefined toner bed height on a donor member, including a composite trim bar having a support portion and a cutting portion, adjacent to the donor member, attached to the support portion. ... | 03/17/2009 |
| 7502581 | Movable metering skive for a development station of a reproduction apparatus A magnetic brush development station for a reproduction apparatus with a movable metering skive so as to enable such metering skive to control and prevent contamination at such metering skive. A developer roller is mounted within the housing for delivering developer... | 03/10/2009 |
| 7440718 | Developing apparatus featuring image defect supression A developing apparatus having a developing sleeve provided with an elastic layer on its surface, and for developing an electrostatic image formed on an image bearing member with a mono-component magnetic toner having a mean degree of circularity of 0.965 or greater,... | 10/21/2008 |
| 7418225 | Developing apparatus, process cartridge, electrophotographic image forming apparatus and end portion regulating member A developing apparatus, a process cartridge and an electrophotographic image forming apparatus which can obtain a good image, and an end portion regulating member provided in them. The end portion regulating members for regulating the layer thickness of developer pa... | 08/26/2008 |
| 7406280 | Magnet roller developing device and image forming apparatus for reducing obstructions in developer circulation path A device including a developing roller having a magnet roller for transporting developer, and developing an electrostatic latent image, a regulating member regulating transportation amount of the developer transported to the electrostatic latent image with the devel... | 07/29/2008 |
| 7392000 | Image forming apparatus to control a linear velocity ratio An image forming apparatus having a photoconductive drum to form an electrostatic latent image corresponding to a predetermined image by a laser beam scanned after being electrified to a predetermined electric potential, and a developing roller to rotate together wi... | 06/24/2008 |
| 7379693 | Developing apparatus A developing apparatus having a rotatable developing sleeve having an elastic layer on the surface thereof for carrying a mono-component magnetic developer and urged against a photosensitive drum to develop an electrostatic image formed on the drum with the develope... | 05/27/2008 |
| 7373098 | Toner cartridge and electrophotographic printer employing the same A toner cartridge horizontally installed in an electrophotographic printer having a photoreceptor drum where an electrostatic latent image is formed by charging and exposure, and contributing to toner supply and development by being fixedly coupled to in the electro... | 05/13/2008 |
| 7366453 | Xerographic developer unit having multiple magnetic brush rolls rotating against the photoreceptor A development subsystem is used to develop developer having semiconductive carrier particles and toner particles. The development subsystem includes a developer housing, for retaining a quantity of developer having semiconductive carrier particles and toner particle... | 04/29/2008 |
| 7362992 | Developing unit and image forming apparatus A developing unit is provided, which includes a developer accommodating section to accommodate developer; a developing member to provide the developer accommodated in the developer accommodating section to an image carrying body by rotating; a developer layer formin... | 04/22/2008 |
| 7359662 | Image forming apparatus with control blade having an arcuate shape An electrostatic latent image is formed on an image carrier. A developer includes a container containing toner, a first roller facing the image carrier and rotated to cause the toner to adhere onto the image carrier to develop the electrostatic latent image as a ton... | 04/15/2008 |
| 7346300 | Developing apparatus A developing apparatus having a developer carrying member carrying developer including toner, a developer regulating member regulating the layer thickness of the developer carried on the developer carrying member, and a lubricant provided in a contact portion betwee... | 03/18/2008 |
| 7340203 | Method and device for cleaning support elements in printers or copiers by means of magnetic fields The invention relates to a method and devices for cleaning the surfaces of applicator rollers, photoconductor drums, transfer belts, and photoconductor belts using magnetic roller systems. The invention also relates to methods and systems for cleaning magnetic rolle... | 03/04/2008 |
| 7310490 | Developing unit for an image forming apparatus A developing unit for an image forming apparatus using a two-property developer that induces a magnetic attraction force based on the slope of a curved line representing the magnetism of each magnetic pole of a magnetic field generating part of a developing roller a... | 12/18/2007 |
| 7289756 | Developer regulating member with surface roughness parameters A developer regulating member abutting against a developer carrying member carrying a mono-component developer to regulate the layer thickness of the developer on the developer carrying member has a supported portion supported by a support member, and an abutting po... | 10/30/2007 |
| 7289755 | Development apparatus, process cartridge, and image forming apparatus A development apparatus is provided and includes a developer support, a developer-controlling member, and a developer-residue controlling member. The developer support supports developer on the surface. The developer-controlling member controls the thickness of the ... | 10/30/2007 |
| 7272349 | Doctor blade for toner cartridge developer roller A metering blade confronts the developer roller of a toner cartridge with a working face and associated upstream corner that is accurately controlled with respect to the developer roller to achieve a desired gap therebetween. More particularly, the quality of toner ... | 09/18/2007 |
| 7251441 | Developing apparatus including magnetic field generating means, for use with a developer which includes a magnetic toner component A developing apparatus includes a developer carrying member for carrying a developer including one component magnetic toner to develop an electrostatic image formed on an image bearing member. The developer carrying member includes an elastic member contactable to t... | 07/31/2007 |
| 7248824 | Conveyor device and image forming apparatus A toner-conveying device includes a movable plate. The movable plate is movable between a holding position such as to couple a cap of a toner container to a nozzle when the toner container is supported by a container holder, and a retreating position such as not to ... | 07/24/2007 |
