Simultaneous Transferring And Fixing Patents (Class 430/124.11)
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Patent number: 8541153Abstract: A toner for developing an electrostatic image contains at least one of an oxidation polymerizable monomer and a polymer having an ethylenically unsaturated group, and an oxidation polymerization catalyst in a form of a composite with inorganic particles, wherein a temperature T(10 Mpa) and a temperature T(1 Mpa) satisfies the following expression (1): 20° C.?T(1 MPa)?T(10 MPa)??(1) wherein, the temperature T(10 Mpa) is a temperature at which a viscosity of the toner under a pressure of 10 Mpa applied with a flow tester becomes 104 Pa·s, and the temperature T(1 Mpa) is a temperature at which a viscosity of the toner under a pressure of 1 Mpa applied with a flow tester becomes 104 Pa·s.Type: GrantFiled: August 30, 2010Date of Patent: September 24, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Yasuo Matsumura, Hirotaka Matsuoka, Hideo Maehata, Yuki Sasaki, Fumiaki Mera
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Patent number: 8530130Abstract: A method of forming a glossy image is disclosed, comprising the steps of (a) forming a clear toner particle layer with clear toner particles on an image support, (b) heating and pressing the clear toner particle layer formed on the image support, while bringing the surface of the clear toner particle layer into contact with a belt, and (c) cooling the clear toner particle layer to form a clear toner layer, wherein the clear toner particles contain a binder resin and a releasing agent and exhibit a heat quantity of fusion of not less than 3.0 J/g and not more than 9.5 J/g, and the clear toner particles meeting the following requirement: 0.5?S2/S1?1.0.Type: GrantFiled: September 23, 2011Date of Patent: September 10, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Yasuko Uchino, Tatsuya Nagase, Asao Matsushima, Aya Shirai, Ryuichi Hiramoto, Michiyo Fujita
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Patent number: 8247152Abstract: A method for reducing wear upon an electro-photographic printer drum includes the steps of determining a non-image region of a page to be printed, applying a halftone pattern of toner to a portion of the printer drum corresponding to the non-image region, and rotating the printer drum against a cleaning blade, the halftone pattern of toner providing lubrication between the drum and the cleaning blade.Type: GrantFiled: September 29, 2008Date of Patent: August 21, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Steve Testardi, Anthony Holden
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Patent number: 7989132Abstract: An image sheet forming method includes supplying a first sheet including a non-transparent layer, and transferring a toner image onto a toner image carrying surface of the first sheet. The method further includes integrating a second sheet, which includes a base layer and a transparent layer, with the first sheet in a manner that the toner image is sandwiched between the toner image carrying surface of the first sheet and the transparent layer of the second sheet. The method further includes separating the base layer from the second sheet while fixing the toner image.Type: GrantFiled: October 22, 2007Date of Patent: August 2, 2011Assignee: Ricoh Company, Ltd.Inventors: Reki Nakamura, Megumi Ohtoshi, Masumi Sato, Shiro Kondo
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Patent number: 7947420Abstract: An image forming method comprising the steps of: (i) charging a surface of a photoreceptor; (ii) exposing the charged photoreceptor to form an electrostatic latent image; (iii) developing the electrostatic latent image using a toner comprising at least a release agent to form a toner image; (iv) transferring the toner image on the photoreceptor to a transfer material; and (v) fixing the toner image transferred on the transfer material employing a contact-heating fixing devise comprising a pair of belts, wherein the releasing agent comprises a first release agent component containing a monoester compound represented by Formula (1) and a second release agent component containing a hydrocarbon having a branched chain structure, wherein a content of the first release agent is 40 to 98% by mass, based on a total mass of the first release agent component and the second release agent component: R1—COO—R2.Type: GrantFiled: January 17, 2008Date of Patent: May 24, 2011Assignee: Konica Minolta Business Technologies, Inc.Inventors: Masaharu Matsubara, Asao Matsushima, Noboru Ueda, Go Yamaguchi, Takayuki Suzuki
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Publication number: 20100330495Abstract: An image sheet forming method includes supplying a first sheet including a non-transparent layer, and transferring a toner image onto a toner image carrying surface of the first sheet. The method further includes integrating a second sheet, which includes a base layer and a transparent layer, with the first sheet in a manner that the toner image is sandwiched between the toner image carrying surface of the first sheet and the transparent layer of the second sheet. The method further includes separating the base layer from the second sheet while fixing the toner image.Type: ApplicationFiled: October 22, 2007Publication date: December 30, 2010Inventors: Reki Nakamura, Megumi Ohtoshi, Masumi Sato, Shiro Kondo
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Publication number: 20100081077Abstract: A method for reducing wear upon an electro-photographic printer drum includes the steps of determining a non-image region of a page to be printed, applying a halftone pattern of toner to a portion of the printer drum corresponding to the non-image region, and rotating the printer drum against a cleaning blade, the halftone pattern of toner providing lubrication between the drum and the cleaning blade.Type: ApplicationFiled: September 29, 2008Publication date: April 1, 2010Inventors: Steve Testardi, Anthony Holden
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Publication number: 20080318150Abstract: Paper compositions are provided that include an amine group-containing cationic polymeric material and a binder material. The paper compositions are particularly useful as receiver materials for images formed by electrophotographic imaging methods utilizing liquid developers. Also described are imaging methods that utilize the paper compositions as receiver materials and methods for manufacturing the paper.Type: ApplicationFiled: November 8, 2005Publication date: December 25, 2008Inventors: Satish Agrawal, Clifford W. Parker
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Patent number: 7447471Abstract: A method of heating toner of an image on a moving surface of an intermediate transfer member in order to transfer the image to a printing medium of a printing system includes providing a toner image on an intermediate transfer member, and placing a surface of a heated member in contact with the toner image on the intermediate transfer member prior to transferring the toner image to a further surface from the intermediate transfer member. Heating of the toner image by the contacting heated member is in addition to heating by a heater internal to the intermediate transfer member.Type: GrantFiled: October 23, 2003Date of Patent: November 4, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Benzion Landa, Ishajau Lior, Itzhak Ashkenazi, Avner Schneider
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Patent number: 7421237Abstract: An image forming apparatus includes a fixing unit that heats and fixes a toner image created on a recording medium; and a cooling unit that cools the toner image heated and fixed by the fixing unit with reference to a melting point of wax contained in the toner image from a temperature higher than the melting point to a temperature lower than the melting point.Type: GrantFiled: January 12, 2005Date of Patent: September 2, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Hitoshi Funato, Kazuhiro Mori
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Publication number: 20080102399Abstract: A pair of registration rollers align a leading edge of a recording medium having a transparent section and a non-transparent section. A boundary sensor detects a boundary between the transparent section and the non-transparent section. The boundary sensor is provided on a downstream side of a direction of conveying the recording medium by the registration rollers.Type: ApplicationFiled: October 22, 2007Publication date: May 1, 2008Inventors: Reki Nakamura, Megumi Ohtoshi, Masumi Sato, Shiro Kondo
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Patent number: 7267864Abstract: The present invention provides an image supporting material for fixably supporting a color toner image, the material including a base material, a light scattering layer provided on the base material and containing a white pigment and a thermoplastic resin, and a color toner receptive layer provided on the light scattering layer and containing at least a thermoplastic resin, wherein the thermoplastic resin in the light scattering layer is constituted of a polyolefin or a polyolefinic copolymer having a temperature, at which viscosity becomes 5×103 Pa·s, of 100° C. or higher, and the thermoplastic resin in the color toner receptive layer is constituted of a resin obtained by melt mixing of a crystalline polyester resin and an amorphous resin and having a temperature, at which viscosity becomes 103 Pa·s, equal to or higher than 65° C. but lower than 80° C.Type: GrantFiled: September 15, 2004Date of Patent: September 11, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Osamu Ide, Shigeru Hayashi, Katsumi Daimon