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| Number | Title | Issue Date |
| 8185017 | Image forming apparatus and process cartridge An electrophotographic image forming apparatus including an image bearing member which is a rotatable photoconductor containing an organic photoconductive layer on a conductive cylindrical support, a latent electrostatic image forming unit configured to charge the i... | 05/22/2012 |
| 8170449 | Image forming apparatus and process cartridge An image forming apparatus including an image bearing member which has an electroconductive substrate, a photosensitive layer overlying the electroconductive substrate and a cross-linked resin surface layer overlying the photosensitive layer and bears a latent elect... | 05/01/2012 |
| 8155561 | Image forming apparatus A positioning roller is configured to be pressed against an abutment block by a reactive force produced when the positioning roller abuts on an S-D-direction abutment block. ... | 04/10/2012 |
| 8103191 | Image forming apparatus The invention provides an image forming apparatus having: an image holding member; a charging unit; a latent image-forming unit; a development unit; a measuring unit; and a control unit. The image holding member has a substrate having a surface having regular reflec... | 01/24/2012 |
| 8097393 | Image forming apparatus and image forming method An image forming apparatus at least containing an electrophotographic photoconductor, a latent electrostatic image forming unit, a developing unit, a transferring unit, and a fixing unit, wherein a glass transition temperature of an outermost layer of the electropho... | 01/17/2012 |
| 8086140 | Photosensitive body having electrical connection arrangement A photosensitive body for electro-photography includes an electrically conductive photosensitive drum, an electrically conductive shaft, and an electrically conductive contact member. The photosensitive drum is rotatable relative to the shaft. The shaft includes a c... | 12/27/2011 |
| 8073362 | Photosensitive body having electrical connection arrangement A photosensitive body for electro-photography includes a photosensitive drum, a shaft aligned with a center axis of the photosensitive drum, and a contact member. The photosensitive drum is rotatable relative to the shaft, and the shaft includes a cylindrical shaft ... | 12/06/2011 |
| 8059990 | Image forming apparatus An image forming apparatus having an image bearing member having a substrate and a photosensitive layer having a charge generating layer and a charge transport layer, a charging device for uniformly charging the surface of the image bearing member, an irradiating de... | 11/15/2011 |
| 7995950 | Image forming apparatus, image forming method and process cartridge involving the use of a cleaning blade that removes toner remaining on a surface of an image bearing member An image forming apparatus including an image bearing member having a static friction coefficient of from 0.1 to 0.3, a latent electrostatic image forming device, a developing device, and a cleaning device including a cleaning blade to remove remaining toner, in whi... | 08/09/2011 |
| 7989133 | Fixing liquid, fixing device using the fixing liquid, and image forming apparatus comprising the fixing device The present invention provides a fixing liquid for fixing microparticles containing a resin to a medium, a fixing device using this fixing liquid, and an image forming apparatus comprising this fixing device. The fixing liquid of the present invention is a fixing li... | 08/02/2011 |
| 7949284 | Image forming apparatus The present invention is intended to provide an image forming apparatus capable of producing high-quality images for a long period of time wherein the consumption of the opposite polarity particles is reduced, and a reduction in the amount of toner charge resulting ... | 05/24/2011 |
| 7937023 | Method and a composition for producing an undercoat layer using dialkyl malonate blocked isocyanates (for electrophotographic applications) A method and a composition for the production of surface smoothing polyurethane layers for application to a substrate prior to subsequent application of a charge generation layer for electrophotographic applications by preparing a coating solution containing a dialk... | 05/03/2011 |
| 7929882 | Image development apparatus and image forming apparatus using the same, and image development method and image forming method using the same An image development apparatus, including: a developer carrier that carries thereon a liquid developer being a carrier solution including dispersed toner particles each made of a coloring agent and a resin; a developer supply member that supplies the developer to th... | 04/19/2011 |
| 7894750 | Compact and high speed image forming apparatus and image forming method using the same An image forming apparatus is provided, including an electrostatic latent image bearer; a charger charging the electrostatic latent image bearer; an irradiator irradiating the electrostatic latent image bearer with imagewise light having an image resolution not less... | 02/22/2011 |
| 7865114 | Image forming apparatus, image forming method and process cartridge An image forming apparatus including an image bearing member, a charging device, an irradiating device, a developing device, a transfer device, a fixing device, and a cleaning device, wherein the image bearing member includes a substrate on which a photosensitive la... | 01/04/2011 |
| 7844201 | Color image forming apparatus and color image forming method There is provided a tandem color image forming apparatus and the like, which is capable of suppressing the generation of black spots during a continuous image forming process, even though a non-magnetic single-component developer is used and a cleaner-less type is a... | 11/30/2010 |
| 7822363 | Image forming apparatus with charge member and image supporting member having specific characteristics An image forming apparatus includes: an image supporting member; a charge member for charging a surface of the image supporting member; an exposure member for forming a latent image on the surface of the image supporting member charged by the charge roller; a develo... | 10/26/2010 |
| 7813675 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus An electrophotographic photosensitive member is provide which inhibits recovered toner from leaking out of the edge portion at the time of long-term use, and has good durability. Each of at least both edge portions of the surface layer of the electrophotographic pho... | 10/12/2010 |
| 7785762 | Image forming apparatus and image forming method An image forming apparatus including an image bearing member for bearing a latent electrostatic image including a substrate, an intermediate layer containing a metal oxide, a photosensitive layer including a charge transport layer and a charge generating layer conta... | 08/31/2010 |
| 7769323 | Acoustic dampening material for imaging drum Method for acoustic dampening of photoreceptor and ionographic drums using an acoustic dampening applied to and cured on the interior of a drum. Embodiments provide excellent acoustic dampening of the resonance modes, and thus, substantially eliminates the problemat... | 08/03/2010 |
| 7764906 | Image forming apparatus and image forming method An image forming apparatus, including an electrostatic latent image bearer bearing an electrostatic latent image; an electrostatic latent image former forming the electrostatic latent image on a surface of the latent image bearer; an image developer developing the e... | 07/27/2010 |
| 7761035 | Photosensitive body, image forming apparatus having the same and assembly method of photosensitive body A photosensitive body to stably maintain an electric connection between a photosensitive drum and a shaft includes a photosensitive drum, a shaft serving as a rotational center of the photosensitive drum, and a grounding device to electrically connect the photosensi... | 07/20/2010 |
| 7756447 | Image forming apparatus and method of preparing toner for use in image forming apparatus An image forming apparatus including at least one image bearing member; at least one charging device configured to charge a surface of the at least one image bearing member; and at least one developing device configured to develop an electrostatic latent image on th... | 07/13/2010 |
| 7751754 | Image forming apparatus provided with an electrophotographic photosensitive member The present invention relates to an image forming apparatus including an electrophotographic photosensitive member provided with a substantially cylindrical body having outer circumference on which a photosensitive layer with a latent image forming area is formed, a... | 07/06/2010 |
| 7747197 | Electrophotographic image forming apparatus and process cartridge An electrophotographic image forming apparatus, including a photoreceptor, a charger charging the surface of the photoreceptor, an irradiator irradiating the surface of the photoreceptor with imagewise light to form an electrostatic latent image thereon, an image de... | 06/29/2010 |
| 7725055 | Roller for a printer and a method of cooling the roller surface A roller for a printer includes an outer tube and at least one inner tube. The inner tube is position within the outer tube. The outer tube extends in an axial direction from a first to a second end and the inner tube extends substantially parallel to the outer tube... | 05/25/2010 |
| 7702256 | Image-forming apparatus including an electrophotographic photoreceptor having an undercoat layer with metal oxide particles and an acceptor compound An image forming apparatus comprising an electrophotographic photoreceptor, a charging unit, an exposure unit, a development unit, and a transfer unit, wherein the image forming apparatus conducts charging, exposure, development, and transfer while moving a circumfe... | 04/20/2010 |
| 7702257 | Image forming apparatus with image bearing member having a lubricant An image forming apparatus including at least one image bearing member; at least one charging device configured to charge a surface of the at least one image bearing member; and at least one developing device configured to develop an electrostatic latent image on th... | 04/20/2010 |
| 7693454 | Image forming apparatus Disclosed is an image forming apparatus composed of a combination of multi-layered electrophotographic photoreceptor wherein an undercoat layer is made of at least fine titanium oxide particles and a binder resin and has a thickness of 3 μm or less and the fine tit... | 04/06/2010 |
| 7693453 | Image forming apparatus equipped with an electrographic photoreceptor having a surface with low surface free energy An image forming apparatus having excellent cleaning property for an electrophotographic photoreceptor and capable of forming a high-quality, high-resolution image. A surface free energy (γ) of a photoreceptor (2), which is provided in the image forming appa... | 04/06/2010 |
| 7684733 | Electrophotographic photosensitive member rotatably supported in an image forming apparatus An electrophotographic photosensitive member rotatably supported in an image forming apparatus. The electrophotographic photosensitive member includes a substantially cylindrical body and a photosensitive layer formed thereon and having a latent image forming area. ... | 03/23/2010 |
| 7672613 | Photosensitive material drum and image-forming machine equipped with the photosensitive material drum A photosensitive material drum capable of easily preventing the leakage of the adhesive through the notches which are for confirming the earthing of the flange member. The flange member inserted in an end portion of the drum body includes an annular protuberance cov... | 03/02/2010 |
| 7672612 | Electrophotographic photosensitive member, and image forming apparatus using same The present invention relates to an electrophotographic photosensitive member including a substantially cylindrical body rotated by rotation power transmitted via an first end portion from in an image forming apparatus and a photosensitive layer including a latent i... | 03/02/2010 |
| 7668483 | Image forming apparatus Provided is an image forming apparatus which includes a cylindrical image carrier, on which at least an electrostatic latent image is formed, and a charge roller for non-contact charging the image carrier with a predetermined charge gap, and applies at least an alte... | 02/23/2010 |
| 7623810 | Electrophotographic photosensitive member and image forming apparatus provided with the same The present invention relates to an electrophotographic photosensitive member and an image forming apparatus provided with the same. The electrophotographic photosensitive member includes a substantially cylindrical body and a photosensitive layer having a latent im... | 11/24/2009 |
| 7588875 | External surface additive compositions A toner having at least one binder, at least one colorant and external additives. The external additives include at least one fluoropolymer. An electrophotographic image forming machine and method includes the toner with at least one fluoropolymer. ... | 09/15/2009 |
| 7561828 | Image-forming apparatus including an electrophotographic photoreceptor having an undercoat layer The invention provides an image-forming apparatus, having an electrophotographic photoreceptor, a charging unit, a light-exposure unit, a development unit, a transfer unit, and a controller that controls the traveling speed of the peripheral surface of the electroph... | 07/14/2009 |
| 7558507 | Image forming apparatus, and pressure fogging prevention The pressure between a developing roller and a photosensitive drum is set to 0.24 MPa. Because the pressure is smaller than 0.31 MPa, if the potential difference ΔV between the non-image forming part on the photosensitive drum and the electrically-charged polymer t... | 07/07/2009 |
| 7551878 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus An electrophotographic photosensitive member has, on the surface of its photosensitive layer, has a plurality of depressed portions which are independent from one another, and, where the major-axis diameter of each depressed portion is represented by Rpc and the dep... | 06/23/2009 |
| 7548712 | Image forming apparatus, drum unit, image forming module, and method of insertion and removal of a damper into and from an image carrier drum A latent image carrier includes a thin-walled cylinder with a chargeable photosensitive layer. The latent image carrier is configured to form an electrostatic latent image corresponding to an optically written image. A cylindrical damper including an elastic body di... | 06/16/2009 |
