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Masahiko Shakuto

Masahiko Shakuto, Kanagawa JP

Patent application numberDescriptionPublished
20080286020CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A blade, including: a cut surface provided by obliquely cutting a part of a tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle, wherein the tip ridge portion is configured to be pressed to a surface to be cleaned.11-20-2008
20090241830LUBRICANT APPLYING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A lubricant applying unit has a residual-toner collection rate X of 50% when the lubricant applying unit has not been used. The collection rate X is obtained by X=(Ta−Tb)/Ta×100, where Ta is weight per unit area of the residual toner on an area of the image carrier that has not come into contact with the lubricant applying unit, and Tb is weight per unit area of the residual toner on an area of the image carrier that has come into contact with the lubricant applying unit.10-01-2009
20110052225Image forming device - An image forming device includes: a collecting container that collects a waste toner; a rotation member that rotates and spreads a waste toner inside the collecting container; a torque detection unit that detects torque applied to the rotation member by a waste toner inside the collecting container; and a rotation direction switching unit that switches a rotation direction of the rotation member. When a torque value detected by the torque detection unit is more than a first threshold, the rotation direction of the rotation member is switched by the rotation direction switching unit.03-03-2011
20110076075Lubricant applicator, image forming apparatus, and method of mounting lubricant applicator - A lubricant applicator includes: a lubricant application unit that is arranged so as to be in contact with a surface of an image carrier, scrapes a solid lubricant, and applies the solid lubricant onto the surface of the image carrier while moving a surface of the lubricant application unit; a lubricant holding member that holds the solid lubricant; and a lubricant biasing unit that biases the solid lubricant against the lubricant application unit. The lubricant biasing unit is housed in a housing under a state that one end of the lubricant biasing unit is held by the lubricant holding member so that a position of the one end of the lubricant biasing unit is restricted, and another end of the lubricant biasing unit is held by a biasing-unit holding member that is provided to restrict a position of the another end of the lubricant biasing unit.03-31-2011

Patent applications by Masahiko Shakuto, Kanagawa JP

Masahiko Shakuto, Zama-City JP

Patent application numberDescriptionPublished
20090022504IMAGE FORMING APPARATUS, IMAGE CARRIER, AND PROCESS CARTRIDGE - An image forming apparatus includes a unit, a mark detector, and a controller. The unit is attachable to and detachable from the image forming apparatus and includes an information mark pattern indicating predetermined information. The mark detector detects the information mark pattern. The controller obtains the information indicated by the information mark pattern based on a detection result provided by the mark detector.01-22-2009
20090097879WASTE TONER STORAGE UNIT AND IMAGE FORMING APPARATUS USING SAME - A waste toner storage unit detachably mountable to an image forming apparatus includes a waste toner container and an inner cover integrally attached to the waste toner container. The waste toner container stores waste toner recovered after an image forming process. The inner cover is located at a region of the waste toner storage unit that does not store waste toner.04-16-2009
20100080600Collection container, cleaning unit, and image forming apparatus capable of collecting waste toner efficiently - A collection container for collecting and containing waste toner includes a leveling member, a detector, and at least one inlet. The leveling member levels the waste toner contained in the collection container. The detector detects an amount of the waste toner contained in the collection container. The leveling member levels the waste toner delivered to the collection container through the at least one inlet by conveying the waste toner simultaneously in a first direction toward the detector and a second direction opposite to the first direction, starting from an origination position corresponding to the at least one inlet.04-01-2010

Masahiko Shakuto, Zama-Shi JP

Patent application numberDescriptionPublished
20080226333USED TONER COLLECTION DEVICE AND IMAGE FORMING APPARATUS - A used toner conveyance device includes a lateral conveyance member for conveying used toner substantially in the horizontal direction, and a vertical conveyance member for upwardly conveying the used toner transferred from the lateral conveyance member. The vertical conveyance member transfers the used toner to either a collection space or a next conveyance path. The vertical conveyance member stops its operation when a prescribed delay time has elapsed after the lateral conveyance member stops conveyance operation.09-18-2008
20090180801ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PHOTORECEPTOR SUPPORTING DEVICE, IMAGING DEVICE AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes, a cylindrical photoreceptor pipe; at least one flange which is attached to an opening of one end of the photoreceptor pipe, and which is provided with a shaft part projecting outward from the one end at a shaft center position of the photoreceptor pipe; and an earth member which is arranged to penetrate through the shaft part of the at least one flange, and which is provided on its inward side with at least one first contact part which contacts an inner circumference of the photoreceptor pipe, and on its outward side with a second contact part.07-16-2009
20100021205LUBRICANT APPLICATOR AND IMAGE FORMING APPARATUS INCLUDING SAME - A lubricant applicator includes a solid mold lubricant, a lubricant application roller, and a flicker member. The lubricant application roller scrapes and applies the lubricant to an image bearing member. The flicker member removes a powder substance adhered to the surface of the lubricant application roller and is disposed upstream of the solid mold lubricant in a direction of rotation of the lubricant application roller. The lubricant application roller, the flicker member, and the solid mold lubricant define a sealed space therebetween. A lubricant applicator includes the solid mold lubricant, the lubricant application roller, the flicker member, and an adherence prevention member that prevents the substance removed by the flicker member from adhering again to the lubricant application roller. A lubricant applicator includes the solid mold lubricant, the lubricant application roller, and a lubricant receiver that receives the scraped lubricant from the lubricant application roller.01-28-2010
20100034557Process cartridge and image forming apparatus employing same - A process cartridge detachably attached to an image forming apparatus includes a first subunit, a second subunit, a first positioning member, and a second positioning member. The first subunit accommodates a photoconductor therein. The second subunit accommodates a developer applicator therein. The photoconductor and the developer applicator are arranged substantially parallel to each other to define a development gap therebetween. The first positioning member is fastened to both the first and second subunits to position ends of the photoconductor and the developer applicator on a first side of the respective subunits. The second positioning member is fastened to only one of the first and second subunits to position ends of the photoconductor and the developer applicator on a second side of the respective subunits opposite to the first side. An image forming apparatus employing such a process cartridge is also disclosed.02-11-2010
20100074665Cleaning device including cleaning mechanism having noise reduction mechanism and image forming apparatus incorporating same - A cleaning device that can be incorporated in an image forming apparatus which includes an image carrier configured to form a toner image, and a cleaning device configured to clean residual toner on the surface of the image carrier. The cleaning device includes a cleaning blade having a blade member provided to contact the surface of the image carrier and a holder to hold the blade member. The cleaning device further includes a frame to hold the cleaning blade and a vibration suppression member provided across the cleaning blade and the frame to couple the cleaning blade and the frame together and suppress vibration.03-25-2010

Patent applications by Masahiko Shakuto, Zama-Shi JP