Cleaning Away Identified Component (e.g., Toner Or Toner Additive, Etc.) Patents (Class 430/119.86)
-
Patent number: 10280313Abstract: An aqueous sacrificial coating composition for an image transfer member in an aqueous ink imaging system is provided. The sacrificial coating composition may include at least one polymer, at least one selected from (i) at least one chain extender, or (ii) a reactive elastomeric latex, wherein the at least one chain extender comprises a species capable of linking linear chains or chain segments of the reactive elastomeric latex, at least one hygroscopic plasticizer, and at least one surfactant.Type: GrantFiled: July 20, 2016Date of Patent: May 7, 2019Assignee: XEROX CORPORATIONInventors: Guiqin Song, Marcel P. Breton, Valerie M. Farrugia, James D. Mayo
-
Publication number: 20150044605Abstract: A developer of the present disclosure contains: toner particles each containing a binder resin and a magnetic powder; cross-linked polyester resin particles having a particle size of 2 ?m or more and 30 ?m or less; and an external additive. The toner particles and the cross-linked polyester resin particles are externally treated with the external additive in the same manner.Type: ApplicationFiled: August 5, 2014Publication date: February 12, 2015Applicant: KYOCERA Document Solutions Inc.Inventor: Akinori KOYAMA
-
Patent number: 8758970Abstract: A method of deinking an image-bearing member using an organic solvent includes receiving the image-bearing member. The member has thereon a continuous or discontinuous image layer formed of toner particles that do not include colorant, and colorant particles or molecules. The colorant particles or molecules are arranged in a pattern corresponding to the arrangement of the toner particles. The organic solvent is hydrophobic or oliophilic and the colorant is insoluble in the organic solvent. The hydrophobic or oliophilic organic solvent is applied to the image-bearing member, so that a majority of the toner image layer is dissolved off the image-bearing member and the colorant is removed from the image-bearing member. A deinked reflection density of the image-bearing member in a selected test area from which the toner image layer was dissolved is within 0.15 of an unprinted reflection density of the image-bearing member before deinking.Type: GrantFiled: November 17, 2011Date of Patent: June 24, 2014Assignee: Eastman Kodak CompanyInventors: Thomas Nathaniel Tombs, Donald Saul Rimai
-
Patent number: 8679715Abstract: An electrostatic image developing toner includes a toner mother particle that contains a binder resin and a releasing agent; and an external additive that contains a zinc compound particle and a silica particle, wherein the zinc compound particle has a number average particle diameter of from about 2.0 ?m to about 10.0 ?m, the silica particle has a number average particle diameter of from about 60 nm to about 250 nm, the number of free zinc compound particles in all toner particles is from about 0.2% by number to about 1.0% by number, and the free zinc compound particle has an average circularity of about 0.6 or less.Type: GrantFiled: August 28, 2009Date of Patent: March 25, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Masahiro Okita, Rieko Kataoka
-
Patent number: 8652739Abstract: The present invention provides a toner for developing an electrostatic charge image including toner particles having residual ammonium ions and silica particles containing a chlorine compound as an external additive.Type: GrantFiled: February 9, 2011Date of Patent: February 18, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroko Kobayashi, Yasuhiro Arima
-
Patent number: 8364054Abstract: Exemplary embodiments provide a method and a system that can include a combined UV radiation and ozone treatment for reducing contamination built-up on surfaces of image members within a printing system.Type: GrantFiled: May 6, 2009Date of Patent: January 29, 2013Assignee: Xerox CorporationInventors: Nicoleta D. Mihai, Samantha M. Roland, Kurt Halfyard, T. Brian McAneney
-
Patent number: 8301070Abstract: An image forming apparatus includes a belt conveying portion having a movable endless belt provided around at least two supporting members, a cleaning member provided in contact with a surface of the belt, a lubricant supply portion provided below a contact portion between the belt and the cleaning member for supplying lubricant to the contact portion, and an adhered-material storing portion provided below the lubricant supply portion for storing adhered-material scraped off from the belt by the cleaning member.Type: GrantFiled: June 27, 2008Date of Patent: October 30, 2012Assignee: Oki Data CorporationInventor: Keigo Matsumoto
-
Patent number: 8135329Abstract: A toner conveyer device for use din an image forming apparatus includes a toner conveyer belt conveys waste toner, a screw member that receives the waste toner from the toner conveyer belt and conveys the waste toner to a housing unit, and a scraping member that scrapes waste toner that adheres to the screw member.Type: GrantFiled: October 15, 2007Date of Patent: March 13, 2012Assignee: Ricoh Company, Ltd.Inventors: Yoshiyuki Shimizu, Tomofumi Yoshida, Hirobumi Ooyoshi, Koji Kato, Kenzo Tatsumi, Yoshihiro Kawakami, Tomohiro Kubota
-
Patent number: 8084179Abstract: A toner including: toner particles which include: a colorant, a releasing agent, and a binder resin. The number average particle diameter of the toner particles is in the range of from 3.5 ?m to 6.5 ?m, wherein the number average particle diameter is determined by the Coulter method, the variation coefficient of the number distribution of the toner particles is in the range of 22.0 to 35.0, wherein the variation coefficient is found by dividing the standard deviation of the number distribution by the number average particle diameter, and 40% by number to 59% by number of the toner particles are 4.0 ?m to 8.0 ?m in diameter.Type: GrantFiled: August 30, 2007Date of Patent: December 27, 2011Assignee: Ricoh Company, Ltd.Inventor: Kumi Hasegawa
-
Publication number: 20110262853Abstract: A toner containing a fatty acid having 6 to 22 carbon atoms, and a binder resin, wherein the toner is obtained by a method for producing a toner, which contains dissolving or dispersing in an organic solvent the fatty acid having 6 to 22 carbon atoms, and a toner material containing at least the binder resin, so as to prepare a solution or dispersion liquid, emulsifying or dispersing the solution or dispersion liquid in an aqueous medium containing acrylic resin fine particles, so as to prepare an emulsion or dispersion liquid, and removing the organic solvent from the emulsion or dispersion liquid.Type: ApplicationFiled: April 14, 2011Publication date: October 27, 2011Inventors: Masaki WATANABE, Hiroshi Yamashita, Tomoki Murayama
-
Patent number: 8034525Abstract: An image forming method is disclosed, which includes steps of cleaning toner remaining on a photoreceptor surface by a cleaning blade which is arranged on counter direction to rotation direction of the photoreceptor, supplying a fatty acid metal salt onto the photoreceptor surface after the cleaning, spreading the supplied fatty acid metal salt on the photoreceptor surface by using a spreading blade which is arranged on trail direction to rotation direction of the photoreceptor, charging the photoreceptor by a charging member, exposing the photoreceptor to form a latent image, developing the latent image by a developer to form a toner image on the photoreceptor, and transferring the toner image onto an image receiving member by a transfer roller facing to the photoreceptor through the image receiving material, in which the toner comprises a binder resin and a colorant, in which the toner has a glass transition point of from 20 to 45° C.Type: GrantFiled: July 7, 2008Date of Patent: October 11, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Yoshiyasu Matsumoto, Kenji Yamane, Hiroyuki Kozuru
-
Publication number: 20110217651Abstract: Disclosed is an image formation method comprising the steps of charging an organic photoreceptor by a charging device, the organic photoreceptor comprising a substrate and provided thereon, a photoreceptive layer and a protective layer in that order; imagewise exposing the charged organic photoreceptor by an exposure device to form an electrostatic latent image; developing the electrostatic latent image by a developing device to form a toner image, the developing device comprising a developer containing a toner; transferring the toner image to a recording medium by a transfer device; and then removing, by a cleaning device, a toner remaining on the organic photoreceptor from the organic photoreceptor, wherein the protective layer is formed by polymerization of a polymerizable composition containing a polymerizable compound with a polymerizable functional group, and wherein the toner contains an antioxidant.Type: ApplicationFiled: February 28, 2011Publication date: September 8, 2011Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.Inventors: Hirofumi HAYATA, Toshiyuki FUJITA
-
Publication number: 20110151372Abstract: A toner obtained by a toner production method which includes dissolving or dispersing in an organic solvent a toner material containing at least a calixarene derivative and a binder resin or a binder resin precursor, to thereby prepare a solution or dispersion liquid of the toner material, adding the solution or dispersion liquid to an aqueous medium for emulsification or dispersion, to thereby prepare an emulsion or dispersion liquid, and removing the organic solvent from the emulsion or dispersion liquid.Type: ApplicationFiled: December 7, 2010Publication date: June 23, 2011Inventors: Masaki Watanabe, Hiroshi Yamashita, Naohiro Watanabe, Tsuneyasu Nagatomo
-
Publication number: 20110070539Abstract: An electrostatic-image-developing toner includes a polyester resin; two or more pigments; a polyethylene wax; and a polyolefin-polyvinyl-based graft copolymer, and satisfies the relationship represented by the following equation (1): 0.2?wd/wp?5.0 ??(1) wherein wp represents a total content (wt. %) of the pigments, and wd represents a content (wt. %) of the polyolefin-polyvinyl-based graft copolymer.Type: ApplicationFiled: February 3, 2010Publication date: March 24, 2011Applicant: FUJI XEROX CO., LTD.Inventors: Daisuke ISHIZUKA, Shinichi YAOI, Yasushige NAKAMURA
-
Patent number: 7759040Abstract: A cleaner-less image forming method includes forming an electrostatic latent image on a electrostatic latent image carrying member; developing the electrostatic latent image with a developer comprising a toner and a carrier to form a toner image; and transferring the toner image. The carrier has a median of an arithmetic average height distribution of from 0.45 to 0.65 ?m, and the toner includes an external additive and has an average circularity of 0.975 or more.Type: GrantFiled: October 13, 2004Date of Patent: July 20, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Noriyuki Mizutani, Yuusaku Shibuya, Masanobu Ninomiya, Toshiyuki Yano
-
Patent number: 7682766Abstract: In an image forming method in which a toner image, which is visualized via an electrostatic latent image formed on an electrophotographic photoreceptor, employing a developer incorporating toner, is transferred onto a recording material followed by fixing, and any residual toner remaining on the electrophotographic photoreceptor is removed, an image forming method in which an electrophotographic photoreceptor and a toner which satisfy specified requirements are employed and image formation is carried out while feeding a surface energy lowering agent from the developer onto the aforesaid electrophotographic photoreceptor, and an image forming apparatus employing the same.Type: GrantFiled: April 18, 2007Date of Patent: March 23, 2010Assignee: Konica Minolta Business Technologies, Inc.Inventors: Shingo Fujimoto, Takao Yamanouchi, Hirofumi Koga, Masaaki Kondo, Shiro Hirano, Junya Onishi
-
Patent number: 7514190Abstract: An electrophotographic image forming method is disclosed, which includes the steps of developing an electrostatic image on a electrophotographic photoreceptor by a developer, transferring a toner image formed by the development, and fixing the toner image on a recording medium. It is disclosed that a toner has a volume particle diameter (Dv50) of about 4.4 to about 5.8 ?m and displays two or more endothermic peaks measured by DSC being within the rang of from about 50 to about 73° C. and the endothermic heat amount thereof is from 12.6 to 24.5 J/mg and a transferring member and/or a fixing member constituted by a belt containing a polyimide resin are employed in the method.Type: GrantFiled: January 26, 2005Date of Patent: April 7, 2009Assignee: Konica Minolta Business Technologies, Inc.Inventors: Ken Ohmura, Asao Matsushima
-
Patent number: 7514194Abstract: The invention provides a toner for developing electrostatic latent images containing at least a binder resin, a colorant, a releasing agent, and a graft polymer that has been made by graft polymerization of a resin matrix and a macromonomer including at least one group selected from the group consisting of a hydroxyl group, a hydroxyalkyl group, and a pyrolidonyl group, and a production method thereof. The invention further provides an electrostatic latent image developer using the toner, an image forming method using the toner, and an image forming apparatus.Type: GrantFiled: December 19, 2005Date of Patent: April 7, 2009Assignee: Fuji Xerox Co., Ltd.Inventors: Masakazu Iijima, Takao Ishiyama, Masaaki Suwabe, Yasuo Kadokura, Michio Take, Hiroshi Nakazawa
-
Patent number: 7482106Abstract: An image forming method comprising steps of forming a toner image by developing by a toner a latent image on a photoreceptor comprised of a layer formed on a substrate, transferring the toner image onto a recording medium on which the toner image is recorded and fixing, wherein the average circular degree of the toner is not less than 0.94, and the toner contains a wax comprising an ester of a carboxylic acid having carbon atoms of not less than 16 or an ester of an alcohol having carbon atoms of not less than 16, and the layer is a layer to be contacted to the toner in the developing step and contains an inorganic fine particles having a number average of primary particle diameter of approximately not less than 1 nm and less than 100 nm.Type: GrantFiled: March 15, 2004Date of Patent: January 27, 2009Assignee: Konica Minolta Holdings, Inc.Inventors: Hideo Yoshizawa, Akihiko Itami
-
Publication number: 20070275315Abstract: A toner is provided manufactured by a method including mixing a particulate porous cross-linked resin having pores on a surface thereof and a volume average particle diameter of from 15 to 50 ?m with a pre-toner including a colored particulate material comprising a binder resin, a colorant, and a release agent and an external additive, and removing the particulate porous cross-linked resin; along with a method for manufacturing the above toner, and a developer, an image forming method, an image forming apparatus, and process cartridge using the toner.Type: ApplicationFiled: May 23, 2007Publication date: November 29, 2007Inventors: Tsuneyasu Nagatomo, Masayuki Ishii, Hiroshi Yamashita, Yasutada Shitara, Tatsuya Morita
-
Publication number: 20070212629Abstract: Disclosed is a toner for use in an image forming apparatus using an amorphous silicon photoconductor as a latent image carrier, and having a cleaning blade for removing the toner remaining on the photoconductor after a transfer step. The toner has a friction coefficient with the photoconductor in a range of 0.3 to 0.6. At least inorganic fine particles such as titanium oxide are externally added to the toner. The inorganic fine particles have a number-average primary particle size of 30 nm or more.Type: ApplicationFiled: March 6, 2007Publication date: September 13, 2007Inventors: Naruo Yabe, Kousuke Satou