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| Number | Title | Issue Date |
| 8086153 | Developing apparatus usable with image forming apparatus, image forming apparatus having the same, method to prevent developer from flowing out the developing apparatus A developing apparatus usable with an image forming apparatus includes a developer carrier includes a plurality of magnetic poles and a case to rotatably support the developer carrier, the case storing developer is supplied to the developer carrier, and a magnetic p... | 12/27/2011 |
| 8086154 | Nanomaterial heating element for fusing applications In accordance with the invention, there are printing apparatuses and methods of forming an image. An exemplary printing apparatus can include a fuser subsystem including one or more light induced heating elements, each of the one or more light induced heating elemen... | 12/27/2011 |
| 7570904 | Image forming apparatus In the image forming apparatus by: visualizing an electrostatic latent image formed on an electrostatic charge carrying member; transferring a toner image, which is thus visualized, to a recording medium, or to a recording medium through an intermediate transfer mat... | 08/04/2009 |
| 7415220 | Local suppression of unwanted toner emissions A developer apparatus for a printing device includes a rotatable developer carrying member which carries developer thereon. A magnet assembly is disposed in the developer carrying member. The magnet assembly includes a plurality of magnets for conveying the develope... | 08/19/2008 |
| 7302203 | Image forming apparatus An image forming apparatus, is provided with an image forming section, an image carrying member, a transferring section to transfer the toner image from the image carrying member to a recording sheet, and a cleaning section including a cleaning blade being in contac... | 11/27/2007 |
| 7224917 | Method and system for reducing toner abuse in development systems of electrophotographic systems An improved development system for an electrophotographic system includes a reload defect detector for generating a signal corresponding to a potential for reload defect detected in an image to be developed by an electrophotographic system; and a magnetic roll speed... | 05/29/2007 |
| 7214461 | Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same The toner of the present invention is suitably used in SLIC development system where a liner velocity of a developer-bearing member is 150 to 500 cm/sec. The toner has resin particles containing at least a coloring agent, and a charge controlling agent fine articles... | 05/08/2007 |
| 7171145 | Developing device and process cartridge for an image forming apparatus A method of developing a latent image formed on an image carrier with toner, including causing a developer carrier, which faces the image carrier and accommodates a magnet therein, to support a developer having a toner and a magnetic carrier supporting the toner and... | 01/30/2007 |
| 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 |
| 7148583 | Electrical power generators The present invention provides methods to convert motion into electrical energy. These electrical power generators are made compatible with standard batteries so that they can support operations of existing battery powered portable appliances with no or minimal modi... | 12/12/2006 |
| 7142796 | Spacer for print cartridge In one embodiment, an article includes a spacer configured to increase a dimension of only a portion of a guide part on a print cartridge when the spacer is fastened to the guide part and a fastener allowing the spacer to be removably fastened to the guide part.... | 11/28/2006 |
| 7131378 | Device for processing a printing substrate A device for processing a printing substrate (22), having at least one processing tool (10), in particular a die plate or a perforating knife, which is accommodated on a rotatable carrier body (14); the carrier body (14) being at least pa... | 11/07/2006 |
| 7116932 | Developing unit and image forming apparatus A developing unit includes a developer containing unit that contains developer, a developer carrier that has a moving surface, and carries the developer, a magnetic force generator that attracts the developer onto the moving surface by a magnetic force generated fro... | 10/03/2006 |
| 7110710 | Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same The toner of the present invention is suitably used in SLIC development system where a liner velocity of a developer-bearing member is 150 to 500 cm/sec. The toner has resin particles containing at least a coloring agent, and a charge controlling agent fine articles... | 09/19/2006 |
| 7024141 | Developing device and process cartridge for an image forming apparatus A method of developing a latent image formed on an image carrier with toner, including causing a developer carrier, which faces the image carrier and accommodates a magnet therein, to support a developer having a toner and a magnetic carrier supporting the toner and... | 04/04/2006 |
| 6978108 | Developing apparatus to control bending of a magnetic field generation unit provided inside a developer carrying member To control bending of a magnetic field generation unit provided inside a developer carrying member, a developing apparatus for developing an electrostatic image formed on an image bearing member according to the present invention includes: a developer container whic... | 12/20/2005 |
| 6917780 | Image forming apparatus that prevents attachment of toner to lateral sides of the developing roll An image forming apparatus of non-contact developing method using two-component developer material which is capable of obtaining a clear image free from fogging, ghost and toner contamination. The image forming apparatus has at least one developing unit which includ... | 07/12/2005 |
| 6907216 | Image forming apparatus having a roll supporting member In order to provide an image forming apparatus capable of forming a quality image by restricting a distance between a developing roll and a magnetic roll with a simple structure, an image forming apparatus comprises a magnetic roll 1 and a developing roll ... | 06/14/2005 |
| 6868240 | Method for developing in hybrid developing apparatus To avoid developing ghost and selective developing without complicating a developing apparatus and to supply surly charged toner to a developing roll while unevenness of images is not generated to obtain stable images for a long time even when continuous printing, a... | 03/15/2005 |
| 6829448 | Image forming apparatus and image forming method A method and apparatus for image forming includes a hybrid developing apparatus that supplies surly charged toner to a developing roll. The apparatus includes a developing roll that is electrically conductive at least on its surface. The image forming apparatus and ... | 12/07/2004 |
| 6658227 | Development method apparatus, image formation and process cartridge for suppressing variation in toner charge The development is performed under a condition that |Q2|-|Q1|/ |Q1ࣘ&#b1;0.45. Here, Q1 denotes an average amount of charge on toner held on a development roller and carried toward a development region immediately before development. Q2 denotes an a... | 12/02/2003 |
| 6526248 | Toner support member and developing device prevented from charging toner by friction A developing device for an image forming apparatus of the type feeding a one-ingredient or two-ingredient type developer, forming a thin toner layer on a developing roller or toner support member and developing a latent image with the toner layer is discl... | 02/25/2003 |
| 6282385 | Developing device and image forming apparatus using the same A control unit is configured in such a manner that at a transition from a developing state to a non-developing state both of DC and AC components of a development bias that are superimposed on each other are instantaneously interrupted after the duty fact... | 08/28/2001 |
| 6154626 | Development roller A development roller for use in a machine in which marking particles are advanced toward a latent image to form a developed image is provided. The development roller includes a conductive body. The conductive body includes a central portion, a peripheral ... | 11/28/2000 |
| 6035169 | Developing device In a developing device comprising a developing member for transferring toner onto an electrostatic latent image for visualization, and a developer supplying member for magnetically attracting two-component developer on the peripheral surface for conveyanc... | 03/07/2000 |
| 5991587 | Developing apparatus having developing roller which is loaded via an intermediate roller An electrophotographic developing apparatus uses a two-component developer comprising a carrier and a toner for development. The apparatus includes an intermediate roller with a non-magnetic sleeve accommodating a magnetic roller disposed between a develo... | 11/23/1999 |
| 5953570 | Developing device for an image forming apparatus Developing device (3A) for use in an electrophotographic image forming apparatus such as copy machine includes a developer material (31) having toner particles (37) and carrier particles (39) and a housing (5) for containing the developer material. The ho... | 09/14/1999 |
| 5913094 | Developing device having magnetic seals at end portions of a developer carrying member and a rotating regulating member A developing device includes a developing sleeve for carrying a magnetic developer, a regulating sleeve for regulating the thickness of the layer of the developer on the developing sleeve, magnets for generating a magnetic field in a layer-thickness regul... | 06/15/1999 |
| 5832350 | Developing apparatus and color electrophotographic apparatus using the same In a developing apparatus, a developing roller has a toner layer formed on a surface thereof, which toner layer is brought into contact with a photoconductor. A magnetic conveying roller having a magnet body is arranged rotatively close to the photoconduc... | 11/03/1998 |
| 5768669 | Developing device having magnet roll fixed by welding and method of assembling the same In a developing unit used for an image forming apparatus to develop an electrostatic latent image on an image carrier, there are provided a developing agent carrying member for carrying a developing agent, a magnet roll disposed in the developing agent ca... | 06/16/1998 |
| 5708942 | Developing device for an image forming apparatus In an image forming apparatus, a developing device operable with toner or single component type developer has a hard first developing roller and a soft second developing roller. Fine magnetic N-S poles are formed on the periphery of the first roller. The ... | 01/13/1998 |
| 5604572 | Developing apparatus having developing agent accommodating cartridge and cartridge for accommodating developing agent for use in developing apparatus A developing magnet roller is provided on a developing frame, and a developing agent accommodating cartridge and a toner accommodating cartridge member are fitted detachably into the developing frame. The toner accommodating cartridge member is fitted det... | 02/18/1997 |
| 5424815 | Developing device A developing device having a toner carrier for feeding a toner through pressure contact with a latent image carrier on which an electrostatic latent image pattern has been formed. The toner carrier comprises a foam member having a foam portion and a solid... | 06/13/1995 |
| 5359399 | Hybrid scavengeless developer unit having a magnetic transport roller An apparatus in which an electrostatic latent image recorded on a photoconductive member is developed with toner. A donor roll, spaced from the photoconductive member, transports toner to a development zone adjacent the photoconductive member. An electrod... | 10/25/1994 |
| 5337124 | Low bead impulse donor loading A toner delivery method and apparatus for delivering highly charged toner containing a minimum of wrong sign toner to a donor roll structure. The donor roll structure, in turn, delivers the toner to an image receiver or a DEP printhead structure. A magnet... | 08/09/1994 |
| 5315354 | Carrier bead seal An apparatus in which an electrostatic latent image recorded on a photoconductive member is developed with toner. A donor roll, spaced from the photoconductive member, transports toner to a development zone adjacent the photoconductive member. An electrod... | 05/24/1994 |
| 5095850 | Developing device A dry-type developing device is capable of converting electrostatic latent image formed on the surface of latent image carrying member to visible image by use of developer powder, and the developing device comprises a latent image carrying member for carr... | 03/17/1992 |
| 5063875 | Development apparatus having a transport roll rotating at least twice the surface velocity of a donor roll An apparatus which develops an electrostatic latent image. A transport roll advances developer material from a chamber to a donor roll. The donor roll advances the toner particles to the latent image. The latent image attracts toner particles from the don... | 11/12/1991 |
| 5012288 | Dry toner development Dry toner development of an electrostatic charge pattern on a recording surface is carried out with a dry toner layer formed on a donor member by electrostatic attraction resulting from a DC voltage applied across a gap between the surface of the donor me... | 04/30/1991 |
| 4686934 | Developing device A developing device comprises a developer bearing member to form thereon a developer layer with carrier particles which attracts toner particles; a toner holding member which passes by the developer bearing member and faces the developer layer such that t... | 08/18/1987 |
