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| Number | Title | Issue Date |
| 8428497 | Developing device and image forming apparatus provided with same A developing device includes a developer storing portion, a developer carrying body, a first regulating member having a first regulating surface regulating a layer thickness of the developer on the developer carrying body, a second regulating member having a second ... | 04/23/2013 |
| 8417161 | Developing device including a cylindrical layer thickness regulation member and image forming apparatus including the developing device A developing device that includes a developing member, a cylindrical layer thickness regulation member and a guide surface. The developing member retains a developer supplied from a developer accommodation portion and, while rotating, supplies the developer to an im... | 04/09/2013 |
| 8401441 | Cartridge and electrophotographic image forming apparatus A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a developer carrying member for developing an electrostatic latent image formed on an image bearing member, and an electroconductive developer layer thickn... | 03/19/2013 |
| 8396401 | Developing device with an anti-accumulation section and image forming apparatus including the same An anti-accumulation section is provided at a section where an inner surface of a developer container abuts a surface of a doctor blade on an upstream side of a rotation direction of a developing roller. An angle between a surface of the anti-accumulation section fa... | 03/12/2013 |
| 8385790 | Two-component developing method and developer used therefor A two-component developing method, including regulating a two-component developer borne on a developer bearer with a doctor blade; and transferring the regulated two-component developer to the developer bearer to develop a latent image on an image bearer, wherein th... | 02/26/2013 |
| 8224217 | Developing unit and image forming apparatus employing the same A developing unit to develop an image on an image support body and an image forming apparatus employing the same. The developing unit includes a housing to contain a developer having a toner and a carrier, a magnetic cylinder including a catch pole to pick up the de... | 07/17/2012 |
| 8204414 | Fastening structure, blade structure, develop unit, and image formation apparatus A fastening structure which fixes a doctor blade to a holder is provided, which includes a cylindrical portion provided on one surface of the holder with which a doctor blade is overlapped, a through hole having an inner diameter larger than an outer diameter of the... | 06/19/2012 |
| 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 |
| 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 |
| 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 |
| 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 |
