Composition Or Layers Patents (Class 399/333)
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Patent number: 8290418Abstract: A fixing unit includes a heating member which includes a core member, and a heating layer. The heating layer is disposed on an outer circumference of the core member. The heating layer includes an elastic material, and carbon nanotube doped with metal and distributed in the elastic material as a conductive filler of the heating layer. A press member faces the heating member to form a fixing nip. The fixing unit applies heat and pressure to toner on a medium passing through the fixing nip, to fix the toner on the medium.Type: GrantFiled: September 11, 2009Date of Patent: October 16, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Ha-jin Kim, In-taek Han, Sang-soo Jee, Sang-eui Lee, Dong-earn Kim
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Publication number: 20120257914Abstract: Exemplary embodiments provide composite materials used for fixing members that can include silsesquioxane-based particles and/or carbon nanotubes dispersed in a polymer matrix.Type: ApplicationFiled: June 5, 2012Publication date: October 11, 2012Applicant: XEROX CORPORATIONInventors: Carolyn Moorlag, Yu Qi, Qi Zhang, Sandra J. Gardner, Gordon Sisler, Guiqin Song, Nan-Xing Hu
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Patent number: 8285184Abstract: In accordance with the invention, there are printing apparatuses, fuser members, and methods of making fuser members. The printing apparatus can include a fuser member, the fuser member including a substrate. The fuser member can also include one or more functional layers disposed over the substrate and a top coat layer including a fluorinated nanocomposite disposed over the one or more functional layers, wherein the fluorinated nanocomposite includes a plurality of fluorinated carbon nanotubes dispersed in one or more fluoropolymers.Type: GrantFiled: January 21, 2009Date of Patent: October 9, 2012Assignee: Xerox CorporationInventors: Kock-Yee Law, Hong Zhao
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Patent number: 8285185Abstract: To enhance the fixing quality of a fixing device to continuously fix sheets of a plurality of sizes, a carbon nanotube sheet 75, in which a plurality of carbon nanotubes are arranged such that the longitudinal directions thereof are oriented in the same direction, is provided on the surface of a heating roller 70 so that the carbon nanotube sheet ranges from the position a predetermined distance inside and the position a predetermined distance outside of the position through which each of the both edges of a sheet P2 with smaller width dimension than a sheet P1 of the largest width dimension to be fixed passes.Type: GrantFiled: September 1, 2010Date of Patent: October 9, 2012Assignee: Konica Minolta Business Technologies, IncInventors: Kosuke Sasaki, Toru Kasamatsu, Tadayuki Ueda, Yoshihito Sasamoto, Satoshi Miyajima
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Publication number: 20120251205Abstract: A fixing device includes a magnetic-field-producing member producing an alternating-current magnetic field, a fixing belt that is heated by electromagnetic induction caused by the alternating-current magnetic field and fixes toner on a recording material, and a pressure applying member pressed against the fixing belt and forming a press-fixing part therebetween through which the recording material having an unfixed image is transported. The fixing belt includes a metal body that is a stack of at least three layers including a base layer and a protective layer both made of metal, and a conductive layer provided between the base layer and the protective layer and to be heated by electromagnetic induction. In a section of the fixing belt taken in a thickness direction, the metal body has its neutral axis on a side of the protective layer with respect to a thickness center line thereof and in the protective layer.Type: ApplicationFiled: September 21, 2011Publication date: October 4, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Masayoshi NAKAO, Hideaki OHHARA, Motofumi BABA
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Publication number: 20120244346Abstract: Novel compositions for use in image forming apparatus and fuser members. In particular, the novel composition is a hybrid networked material comprising fluorocarbon chains connected via silane linkages. The novel composition may be used in fuser members comprising a substrate and a top-coat layer disposed over the substrate.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Applicant: XEROX CORPORATIONInventors: Carolyn Moorlag, Nan-Xing Hu, Yu Qi, Qi Zhang
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Publication number: 20120244469Abstract: Exemplary embodiments provide materials, methods, and systems for a fuser member used in electrophotographic devices and processes, wherein the fuser member can include a coating material containing a plurality of aerogel fillers dispersed in and/or bonded to a polymer matrix for providing a desired gloss level of fused toner images.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Applicant: XEROX CORPORATIONInventors: Edward Graham Zwartz, Gordon Sisler, Kurt I. Halfyard, Carolyn Moorlag, Nicoleta Mihai, T. Brian McAneney, Guiqin Song
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Publication number: 20120245251Abstract: The present teachings disclose a surface coating. The surface coating includes a fluoroplastic having dispersed therein aerogel particles wherein the aerogel particles comprise from about 0.1 weight percent to about 25 weight percent of the surface coating. The surface coating is useful as an out layer for fuser members.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Applicant: XEROX CORPORATIONInventors: Carolyn P. Moorlag, Yu Qi, Nicoleta D. Mihai, Gordon Sisler, Sandra J. Gardner, Qi Zhang, Nan-Xing Hu
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Publication number: 20120243922Abstract: A fixing device includes a rotatable fixing member that fixes a toner image on a recording material, and a rotatable pressure applying member that is pressed against an outer peripheral surface of the fixing member and forms a press-fixing part therebetween through which the recording material having an unfixed toner image is transported. At least one of the fixing member and the pressure applying member includes a core portion provided at a center of rotation, a compressible elastic layer provided over an outer periphery of the core portion, and a shape retaining layer provided over an outer periphery of the elastic layer and retaining a shape of the at least one of the fixing member and the pressure applying member.Type: ApplicationFiled: October 3, 2011Publication date: September 27, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Yasuhiro UEHARA, Satoshi HASEBE
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Publication number: 20120243924Abstract: The present teachings provide a fusing method and system of tuning gloss level on a copy substrate. The method includes obtaining an image forming apparatus for forming images on a recording medium comprising a charge-retentive surface to receive an electrostatic latent image thereon. The method includes applying toner to the charge-retentive surface to develop an electrostatic latent image to form a developed image on the charge-retentive surface. The developed image is transferred from the charge retentive surface to a copy substrate. The toner images are fused to a surface of the copy substrate. The gloss is adjusted on the copy substrate by providing a fuser member having a surface layer a fluoroplastic matrix having dispersed therein aerogel particles wherein the greater a weight percent of the aerogel particles in the fluoroplastic matrix the lower the gloss.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Applicant: XEROX CORPORATIONInventors: Carolyn P. Moorlag, Edward G. Zwartz, Gordon Sisler, Kurt I. Halfyard, Yu Qi, Sandra J. Gardner, T. Brian McAneney, Nan-Xing Hu
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Publication number: 20120237275Abstract: According to aspects of the embodiments, an electrophotographic system utilizing a belt roll fuser mechanism which inhibits or minimizes wrinkling or slipping of printed media through the fuser is disclosed. In this device, the belt is driven at the ideal velocity at all locations across the width of the roll with minimal differential shear stress between the internal pressure roll and the inside of the belt in the nip and around the wrap. The ideal velocity is achieved by straining the circumference belt while its mounted on a roll support structure by flaring the other rolls equally and flaring the internal pressure roll to match the strained circumference of the belt. A small flaring of the rolls in the belt module would reduce sliding of the belt and make the transition between the wraps or the stripper shoe less stressful.Type: ApplicationFiled: March 14, 2011Publication date: September 20, 2012Applicant: XEROX CORPORATIONInventor: Paul M. FROMM
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Patent number: 8270889Abstract: Various embodiments provide low adhesion coatings that can be used for an image-side member in an image fixing system of an electrophotographic printer or an ink jet printer, wherein the low adhesion coatings can exhibit a low sliding angle ranging from about 1° to about 30° with a solid ink, a toner, hexadecane and/or water.Type: GrantFiled: August 12, 2010Date of Patent: September 18, 2012Assignee: Xerox CorporationInventors: Varun Sambhy, Dale R. Mashtare, Kock-Yee Law, Rachel L. McGrath
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Publication number: 20120230742Abstract: An image heating apparatus, for heating, in a nip, a recording material for carrying a toner image while conveying the recording material, includes a flexible cylindrical film; a nip-forming member contacting an inner surface of the film; and a pressing member for forming the nip between itself and the film. The inner surface of the film is provided with a roughened surface portion in a region in which the nip-forming member slides on the inner surface of the film. The roughened surface portion has a skewness Rsk satisfying: Rsk<0.Type: ApplicationFiled: March 1, 2012Publication date: September 13, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Ken Nakagawa, Michio Uchida, Tomoo Akizuki, Kazuhiro Doda, Kensuke Umeda
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Patent number: 8263702Abstract: The present teachings include a coating composition of an aqueous dispersion of fluorine-containing particles and poly(alkylene carbonate). A method of making a fuser member and the fuser member resulting there from is also provided.Type: GrantFiled: February 8, 2011Date of Patent: September 11, 2012Assignee: Xerox CorporationInventors: Qi Zhang, Yu Qi, Carolyn P. Moorlag, Nan-Xing Hu
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Publication number: 20120224897Abstract: Exemplary embodiments provide materials and methods for a non-woven fabric, a fuser member, and a fusing apparatus used in electrophotographic printing devices, wherein the non-woven fabric can be at least part of the topcoat layer of the fuser member and can include a plurality of non-woven electrospun fibers bonded with a fluoropolymer.Type: ApplicationFiled: March 4, 2011Publication date: September 6, 2012Applicant: Xerox CorporationInventors: Yu Qi, Carolyn Moorlag, Qi Zhang, Nan-Xing Hu
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Patent number: 8260184Abstract: Provided are fuser members and printing apparatuses including fuser members. The fuser member can include a substrate and a top coat layer including a hyper nanocomposite disposed over the substrate, wherein the hyper nanocomposite can include a plurality of nanoparticles substantially uniformly dispersed in one or more cross-linked hyperbranched polymers selected from the group consisting of polycarbosilane, polycarbosilixane, polycarbosilazene, and polyfluorocarbon.Type: GrantFiled: November 2, 2009Date of Patent: September 4, 2012Assignee: Xerox CorporationInventors: David J. Gervasi, Santokh Badesha, Alan R. Kuntz
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Patent number: 8260183Abstract: A soft pressure roller for use in a printer fusing system having an inside diameter and an outside diameter, wherein the roller is fabricated of LIM silicone elastomer having a softness of between 15 and 35 Asker C and wherein the distance between the inside diameter and the outside diameter is between 2 mm and 10 mm.Type: GrantFiled: May 21, 2008Date of Patent: September 4, 2012Assignee: 7-Sigma IncorporatedInventors: Wade R. Eichhorn, Boris Avrushchenko, Kristian G. Wyrobek, David Winters
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Publication number: 20120214095Abstract: An image forming apparatus including an image forming device forming a toner image on a recording material, and a fixing device including an endless fixing belt feeding the recording material at a speed of 400 to 1,700 mm/sec while heating to fix the toner image thereon. The fixing belt has a rubber layer located on a substrate and having thickness of 400 ?m to 700 ?m, and a fluorine-containing resin layer located on the rubber layer and having thickness of 2 ?m to 20 ?m. The toner includes a release agent including a microcrystalline wax and/or a synthetic ester wax, and a binder resin including a crystalline polyester and an amorphous polyester. The ratio (W/R) of the height (W) of the third falling peak of the crystalline polyester to the height (R) of the maximum rising peak of the amorphous polyester in the FT-IR spectrum of the toner is 0.045 to 0.850.Type: ApplicationFiled: February 9, 2012Publication date: August 23, 2012Applicant: RICOH COMPANY, LTD.Inventors: Hyo Shu, Hiroki Ishii, Wakana Itoh
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Publication number: 20120213563Abstract: Exemplary embodiments provide a pressure member used in electrophotographic printing devices, wherein the pressure member can include a coated outermost layer containing fluoropolymers and carbon nanotubes (CNTs) each surrounded by an elastomeric material.Type: ApplicationFiled: February 22, 2011Publication date: August 23, 2012Applicant: XEROX CORPORATIONInventors: Yu Qi, Nan-Xing Hu
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Patent number: 8247066Abstract: Exemplary embodiments provide a coating composition for an outermost layer of a fuser member that can include a plurality of fluorinated diamond-containing particles dispersed in a fluororesin matrix.Type: GrantFiled: May 6, 2009Date of Patent: August 21, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Publication number: 20120201580Abstract: A fuser belt for an electrostatographic device and methods for making the fuser belt can include the use of a polyimide and a plurality of copper nanoparticles. The use of copper nanoparticles can result in a fuser belt having a lower heat capacity and a higher thermal conductivity than conventional fuser belts.Type: ApplicationFiled: February 9, 2011Publication date: August 9, 2012Applicant: Xerox CorporationInventor: Yuhua TONG
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Publication number: 20120195656Abstract: Provided is a resin material including at least one of a reaction product and a mixture of a polyimide and a polyurethane that is a polymer of an isocyanate with an acrylic resin containing a side chain having a hydroxyl group.Type: ApplicationFiled: July 25, 2011Publication date: August 2, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Hiroshi SAEGUSA, Hisae YOSHIZAWA, Kaoru TORIKOSHI
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Patent number: 8231972Abstract: A self-releasing fuser member and image apparatus having the fuser member, and wherein the fuser member includes a substrate, and thereover an outer layer polymer matrix having a surface, wherein the outer layer polymer matrix includes a fluoropolymer material and fluorocarbon chains, wherein the fluorocarbon chains are bonded to said fluoropolymer material, and wherein the fuser member decreases or eliminates the need for fusing oils as it is self-releasing.Type: GrantFiled: November 20, 2008Date of Patent: July 31, 2012Assignee: Xerox CorporationInventors: Carolyn Moorlag, Nan-Xing Hu
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Patent number: 8218991Abstract: A fixing device according to an embodiment of the present invention heats a metal conductive layer of a heat roller using an induction current generating coil. In order to supplement a heat capacity of the heat roller, a press roller having a large heat capacity is heated by a halogen lamp. During a start of activation of an image forming apparatus, when a printer control circuit is started, the supply of electric power to the halogen lamp is started before warming-up is started.Type: GrantFiled: November 19, 2007Date of Patent: July 10, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroshi Nakayama, Yohei Doi, Tetsuo Kitamura, Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Kazuhiko Kikuchi, Masanori Takai, Toyoyasu Kusaka, Toshihiro Sone
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Patent number: 8216661Abstract: Exemplary embodiments provide materials, methods, and systems for a fuser member used in electrophotographic devices and processes, wherein the fuser member can include a coating material containing a plurality of nanoceram fibers dispersed in a polymer matrix for providing a desired gloss level of fused toner images.Type: GrantFiled: October 19, 2010Date of Patent: July 10, 2012Assignee: Xerox CorporationInventors: Matthew M. Kelly, David J. Gervasi, Alan Richard Kuntz, Rebecca M. Hainley
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Publication number: 20120170958Abstract: Provided is a fixing belt which has high thermal conductivity capable of achieving an excellent fixing property that can respond to the recent increase in printing speed, which has a proper degree of elasticity such that color toners are sufficiently enveloped so as to be melted and mixed, and which has excellent mechanical strength and durability. A fixing belt includes a tubular base member, an elastic layer disposed on the outer circumferential side of the base member, and a surface layer disposed on a surface on the outer circumferential side of the elastic layer, the fixing belt being characterized in that the elastic layer is composed of rubber into which a filler primarily composed of silicon carbide powder and a carbon nanotube are compounded, and the formulae 10X+3Y<750, 3X+30Y>170, X>10, and Y>0.1 are satisfied, where X is the percent by volume of the filler and Y is the percent by volume of the carbon nanotube in the elastic layer.Type: ApplicationFiled: January 12, 2011Publication date: July 5, 2012Applicants: Sumitomo Electric Fine Polymer, Inc., Sumitomo Electric Industries, Ltd.Inventors: Shingo Nakajima, Jun Sugawara, Hiromi Kamimura, Masatoshi Ishikawa
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Patent number: 8213827Abstract: In a fixing device, a metal member is provided inside a fixing belt to heat the fixing belt. A first lubricant is applied between the metal member and the fixing belt at a center portion of the fixing belt in an axial direction of the fixing belt that contacts a recording medium bearing a toner image. A second lubricant having a viscosity greater than a viscosity of the first lubricant is applied between the metal member and the fixing belt at lateral edge portions of the fixing belt in the axial direction of the fixing belt that do not contact the recording medium.Type: GrantFiled: August 6, 2010Date of Patent: July 3, 2012Assignee: Ricoh Company, Ltd.Inventors: Akira Shinshi, Kenichi Hasegawa, Hiroshi Yoshinaga, Yoshiki Yamaguchi, Yutaka Ikebuchi, Ippei Fujimoto, Shuntaroh Tamaki, Toshihiko Shimokawa, Naoki Iwaya
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Publication number: 20120163886Abstract: A fixing device includes a tubular flexible metallic fusing member, a heater, a nip member, and a backup member. The fusing member has an inner peripheral surface defining an internal space. The heater is disposed in the internal space. The nip member is disposed in the internal space for receiving radiant heat from the heater and has a contact surface in sliding contact with the inner peripheral surface. At least the contact surface is provided with a protection layer having a hardness higher than that of the inner peripheral surface. The backup member nips the fusing member in cooperation with the nip member.Type: ApplicationFiled: December 27, 2011Publication date: June 28, 2012Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Noboru SUZUKI
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Publication number: 20120163888Abstract: Exemplary embodiments provide materials and methods for a nanocomposite material and a fuser member containing the nanocomposite material in a fusing system, wherein the nanocomposite material can contain a plurality of carbon nanotubes (CNTs) and a plurality of inorganic nano-fillers (INFs) disposed in a polymer matrix to provide the nanocomposite material with desirable properties.Type: ApplicationFiled: December 27, 2010Publication date: June 28, 2012Applicant: XEROX CORPORATIONInventors: Qi Zhang, Yu Qi, Nan-Xing Hu, Gordon Sisler
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Publication number: 20120163847Abstract: A fixed image gloss control system outputs a warm pressure-fixed image having a low gloss level. The image is alterable to change the low gloss level to a high gloss level or an intermediate gloss level. The fixing system includes a pressure roll and a fixing roll that together form a fixing nip. The pressure roll has a polyurethane contact surface. A polishing mechanism may polish the fused image to achieve a desired gloss level.Type: ApplicationFiled: December 27, 2010Publication date: June 28, 2012Applicant: XEROX CORPORATIONInventors: Anthony S. CONDELLO, Christopher Lynn
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Publication number: 20120161066Abstract: A thermally conductive silicone rubber sponge composition which is composed of 100 parts by weight of heat-curable organopolysiloxane composition, 0.1 to 50 parts by weight of organic resin hollow filler having an average particle diameter of up to 200 ?m and a true specific gravity of up to 0.3, and 20 to 300 parts by weight of thermally conductive filler having an average particle diameter of 1 to 30 ?m and a thermal conductivity of at least 15 W/m·K, with the highly thermally conductive silicone rubber sponge having voids accounting for 10 to 70% of the entire volume thereof. The silicone rubber sponge composition of the present invention gives a silicone rubber sponge having high thermal conductivity, small heat capacity, low hardness, light weight, and low permanent compression set.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Inventors: Satao HIRABAYASHI, Nobumasa Tomizawa, Noriyuki Meguriya
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Patent number: 8208844Abstract: A fixing roller of an image fixing apparatus has an elastic layer on a core metal and has a thermal conductive fluororubber latex layer containing a mixture of fluororubber, fluororesin and thermal conductive fillers more outer side than the elastic. An intermediate layer made of silicone rubber having higher thermal conductivity than the thermal conductive fluororubber latex layer is provided between the thermal conductive fluororubber latex layer and the elastic layer, and the intermediate layer is configured so that an elastic parameter Y(=H×T) satisfies a relational expression: Y?4200 where H (degree) is Asker-C hardness of the silicone rubber having higher thermal conductivity (500 g load) and T (?m) is a thickness of the silicone rubber having higher thermal conductivity.Type: GrantFiled: May 8, 2009Date of Patent: June 26, 2012Assignee: Canon Kabushiki KaishaInventors: Masahito Omata, Shoji Umehara, Kazuo Kishino, Katsuhisa Matsunaka, Yoji Tomoyuki
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Publication number: 20120155930Abstract: A fixing unit and an image forming apparatus including the fixing unit. The fixing unit includes a heating roller having an internal space in which a heating source is disposed and a pressurizing roller facing the heating roller. The heating roller has a circular hollow pipe shape and includes a fixing nip forming part which forms a fixing nip between the fixing nip forming part and the pressurizing roller. The nip forming part can have a slim part disposed at a center thereof and a pair of deformation preventing parts formed at both ends of the slim part, each deformation preventing part having a thickness thicker than a thickness of the slim part.Type: ApplicationFiled: September 23, 2011Publication date: June 21, 2012Applicant: Samsung Electronics Co., LtdInventors: Youn-gun JUNG, Hae-seog Jo, Su-ho Shin
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Publication number: 20120155937Abstract: A heating element for the fuser for an electrophotographic imaging device. The heating element includes a panel of positive temperature coefficient material having electrodes coupled to opposed surfaces thereof. The positive temperature coefficient material serves to stabilize the temperature of the heating element so as to prevent damage due to overheating.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Inventors: Douglas Campbell Hamilton, Jerry Wayne Smith
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Publication number: 20120155919Abstract: There is described a fuser roller including a surface layer of anodized aluminum oxide impregnated with a fluorine containing sealant. There is also described the method for producing the fuser member.Type: ApplicationFiled: December 15, 2010Publication date: June 21, 2012Applicant: Xerox CorporationInventors: George C. Cardoso, Pinyen Lin, Anthony S. Condello, Jason M. LeFevre, Richard W. Seyfried
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Patent number: 8192817Abstract: Exemplary embodiments provide a coating composition for an outermost layer of a fuser member that can include a plurality of fluorinated diamond-containing particles dispersed in an elastomeric matrix.Type: GrantFiled: May 6, 2009Date of Patent: June 5, 2012Assignee: Xerox CorporationInventor: Jin Wu
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Patent number: 8195075Abstract: An image forming apparatus includes a fixing unit for fixing a toner image on a recording medium. In at least one embodiment, the fixing unit includes a fixing member configured to heat and melt a toner. Further, in at least one embodiment, the fixing member has a surface contacting the toner image and includes a wettability not greater than 38 mN/m.Type: GrantFiled: September 10, 2007Date of Patent: June 5, 2012Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Yoshinaga, Takayuki Yoshii, Kohji Kamiya, Masanao Ehara
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Patent number: 8178209Abstract: A fuser member including a substrate, and thereover, an outer layer comprising a crosslinked fluorinated polyimide and a curing agent is described. The fluorinated polyimide comprises: wherein Ar1 and Ar2 independently represent an aromatic group of from about 6 carbon atoms to about 60 carbon atoms; and at least one of Ar1 and Ar2 further contains a fluoro-pendant group; and wherein the fluorinated polyimide includes an active site capable of reacting with the curing agent.Type: GrantFiled: March 4, 2010Date of Patent: May 15, 2012Assignee: Xerox CorporationInventors: Yu Qi, Nan-Xing Hu
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Publication number: 20120114401Abstract: A fixing device includes: a rotating fixing body including a resistance heating layer disposed throughout an entire periphery; and a pressure-applying member pressed against an outer peripheral surface of the rotating fixing body to form a fixing nip. The rotating fixing body further includes: a pair of electrodes each of which is a layer disposed along a different one of edges of the resistance heating layer throughout an entire periphery; and a pair of resistor layers each of which is disposed between the resistance heating layer and a different one of the electrodes. An inner edge of each resistor layer is positioned at a location corresponding to or axially more inwardly of an inner edge of the electrode. The resistor layers are higher in volume resistivity than the electrodes.Type: ApplicationFiled: November 9, 2011Publication date: May 10, 2012Applicant: Konica Minolta Business Technologies, Inc.Inventor: Tetsuya KAGAWA
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Patent number: 8168287Abstract: The present teachings provide a fuser member. The fuser member includes a substrate, a functional layer disposed on the substrate, and an outer layer disposed on the functional layer. The outer layer includes silicon having a texture, and a conformal oleophobic coating disposed on the silicon.Type: GrantFiled: February 25, 2010Date of Patent: May 1, 2012Assignee: Xerox CorporationInventors: Kock-Yee Law, Hong Zhao
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Patent number: 8165485Abstract: A fixing apparatus includes a heating element with an NTC characteristic in which an electric resistance value decreases as a temperature increases, which extends (i) in a direction parallel to a recording paper and (ii) in a width direction perpendicular to a carrying direction of the recording paper, and which has a longer length, in the width direction, than a width of the recording paper. The fixing apparatus further includes electrode sections provided in close proximity to both ends of the heating element in the width direction), the electrode sections being connected to the heating element, so that a current flows in the heating element in a direction substantially perpendicular to the carrying direction of the recording paper. This makes it possible to restrain excessive increase in temperature at the both ends of the heating element and to obtain a uniform temperature distribution.Type: GrantFiled: December 23, 2008Date of Patent: April 24, 2012Assignee: Sharp Kabushiki KaishaInventors: Kenji Asakura, Toshiaki Kagawa
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Publication number: 20120093551Abstract: A fixing roller includes a fixing sleeve including a heat generating layer; and a support roll inserted into the fixing sleeve to support the fixing sleeve and including a foam layer constituting an outer circumferential surface of the support roll. The foam layer includes recesses exposing pores containing air; and non-recessed portions contiguous to the recesses and adhered to an inner circumferential surface of the fixing sleeve.Type: ApplicationFiled: September 19, 2011Publication date: April 19, 2012Applicant: Ricoh Company, Ltd.Inventors: Tadashi Ogawa, Takeshi Uchitani, Satoshi Ueno, Takamasa Hase, Teppei Kawata, Kazuya Saito, Shuutaroh Yuasa, Kensuke Yamaji
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Patent number: 8150306Abstract: A fixing device according to an embodiment of the invention is provided with a center coil and a side coil to induction heat a metal roller which supports a belt. An auxiliary pressurizing member which is adjacent to an opposing roller which supports the belt and presses the belt against a heat roller is provided. The distance from the center position of induction heating of a heat roller to an entrance of a nip is equalized to the distance from the center position of induction heating of the metal roller to the entrance of the nip. The distance from the temperature reading position of the heat roller to the center position of induction heating of the heat roller is equalized to the distance from the temperature reading position of the belt to the center position of induction heating of the metal roller.Type: GrantFiled: March 8, 2011Date of Patent: April 3, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Kazuhiko Kikuchi
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Publication number: 20120076931Abstract: The present teachings provide a fuser member. The fuser member includes a substrate layer comprising a polyimide polymer and a hydroxyl terminated polybutadiene. A method of manufacturing a fuser member containing a polyimide polymer and a hydroxyl terminated polybutadiene is presented.Type: ApplicationFiled: September 27, 2010Publication date: March 29, 2012Applicant: XEROX CORPORATIONInventor: Jin Wu
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Patent number: 8145111Abstract: A fusing device is provided for use in an image forming apparatus to fuse a toner image having a polarity on a printable medium. Such a fusing device comprises: a heating roller which comprises a heat source; a driving roller which is spaced apart from the heating roller; a fusing belt which travels on the heating roller and the driving roller and is heated by the heating roller; a pressing roller which forms a fusing nip against a surface of the fusing belt and presses the printable medium to the fusing belt; and a power supply which applies a voltage to the pressing roller to electrify the printable medium into a polarity opposite to the polarity of the toner image.Type: GrantFiled: September 10, 2008Date of Patent: March 27, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Sea-chul Bae
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Patent number: 8145113Abstract: A fixing device forms a fixing nip by pressing a first roller, which is inside a rotation path of a rotating belt, with a second roller via the belt, and thermally fixes an unfixed image formed on a sheet S by passing the sheet S through the fixing nip while heating the belt by electromagnetic induction. The fixing device comprises an excitation coil positioned outside said path, and a fixed plate that (i) is inside said path, substantially facing the excitation coil via the belt, (ii) contacts an inner surface of the belt, and (iii) keeps the belt on said path. A base member of the belt is a conductive heat generation layer containing no magnetic shunt alloy. The fixed plate includes a conductive layer and a magnetic shunt alloy layer that is closer to the belt than the conductive layer.Type: GrantFiled: June 16, 2009Date of Patent: March 27, 2012Assignee: Konica Minolta Business Technologies, Inc.Inventors: Masanori Murakami, Fumio Masuda
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Publication number: 20120070208Abstract: Exemplary embodiments provide an induction heating member including a substrate and a heating layer disposed on the substrate. The heating layer includes carbon nanotubes and metal. An outer layer is disposed on the heating layer and includes a fluoropolymer.Type: ApplicationFiled: December 2, 2011Publication date: March 22, 2012Applicant: XEROX CORPORATIONInventors: Yu Qi, Qi Zhang, Nan-Xing Hu, Gerald A. Domoto, Nicholas P. Kladias
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Publication number: 20120063824Abstract: Fixing belts, fixing devices and methods of making fixing belts are provided. An exemplary embodiment of the fixing belts includes an inner layer comprising a first surface forming an inner surface of the fixing belt and a second surface opposite to the first surface, the inner layer comprising a first polymer; an intermediate layer overlying the second surface of the inner layer, the intermediate layer including a third surface, a first end face and a second end face opposite to the first end face, the intermediate layer comprising silicone rubber; and an outer layer including a fourth surface forming an outer surface of the fixing belt, the outer layer overlying the third surface, the first end face, the second end face and portions of the second surface disposed outward from the first end face and second end face, the outer layer comprising a second polymer. The outer layer seals and protects the intermediate layer from exposure to a liquid release agent applied to the fourth surface.Type: ApplicationFiled: September 9, 2010Publication date: March 15, 2012Applicant: XEROX CORPORATIONInventors: Sandra L. Schmitt, Augusto E. Barton, Kevin H. Taft
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Patent number: 8135324Abstract: A fuser member includes a substrate and an outer layer including a polymeric material and an aerogel component including aerogel particles having a surface area of from about 400 to about 1200 m2/g that is at least one of dispersed in or bonded to the polymeric material. Methods of making a fuser member include applying an outer layer including a polymeric material and an aerogel component over a substrate, and curing the outer layer such that the aerogel component is at least one of dispersed in or bonded to the polymeric material.Type: GrantFiled: March 9, 2009Date of Patent: March 13, 2012Assignee: Xerox CorporationInventor: Carolyn P. Moorlag
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Patent number: 8133574Abstract: In accordance with the invention, there are image forming apparatus, fuser members, and methods of making fuser members. The method of making a fuser member can include providing a substrate having a longitudinal axis, providing a first flow coating solution including a fluoroelastomer polymer, and providing a second flow coating solution including a crosslinking agent. The method can also include mixing the first flow coating solution and the second flow coating solution to form a third flow coating solution and forming a continuous fluoroelastomer layer over a surface of the substrate by applying the third flow coating solution onto the substrate in a spiral pattern, wherein the crosslinking agent concentration can be varied along the longitudinal axis by changing the ratio of the first flow coating solution and the second flow coating solution in the third flow coating solution.Type: GrantFiled: March 18, 2008Date of Patent: March 13, 2012Assignee: Xerox CorporationInventor: John E. Derimiggio