Color Patents (Class 399/321)
  • Patent number: 9261805
    Abstract: A toner set is used in a printing system that is capable of recycling a print medium and includes a first image forming portion which forms a toner image on the medium with a decolorable toner which is decolored by being heated at a temperature Te (° C.) or higher, a second image forming portion which forms a toner image on the medium with a non-decolorable toner and forms an image on the medium with at least one of the toners, and a decoloring apparatus provided with a heating portion which heats the medium on which a toner image is formed by the image forming apparatus at the temperature Te (° C.) or higher. When heated by the decoloring apparatus, the decolorable toner may be decolored without causing hot offset.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: February 16, 2016
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takayasu Aoki, Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Kazuhisa Takeda, Yasuhito Noda
  • Patent number: 9063479
    Abstract: A system and method are provided to implement a double belt roll fuser geometry to enable consistent self-stripping of image receiving media exiting a fuser assembly in an image forming device. Interaction between an image receiving medium substrate and a fuser belt of a belt roll fuser device is modified to include configuration in which an opposing belt is positioned around a pressure roller to oppose the fuser belt provided around the fuser roller. The fuser belt and the opposing belt extend in a downstream direction from the fusing nip and are configured to provide an appropriate length downstream of the fusing nip that sandwiches the image receiving medium substrate between the fuser belt and the opposing belt. Each of the fuser belt and the opposing belt wrap 70 degrees or more around significantly smaller diameter rollers positioned downstream of the fusing nip to form a stripping nip.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: June 23, 2015
    Assignee: Xerox Corporation
    Inventors: Christopher Alan Jensen, Steven Matthew Russel, David P. Vanbortel
  • Patent number: 9057971
    Abstract: Provided is a toner that is excellent in terms of low-temperature fixability and hot offset resistance, has a wide fixing temperature range from a low-temperature region to a high-temperature region, and has high thermal storability. When the toner is measured with a capillary rheometer, t(1) is 60 seconds or more and t(5) is 30 seconds or less and the toner satisfies the following formulae (1) and (2) 65.0[° C.]?T(5)?90.0[° C.]??(1) 4.5?t(1)/t(5)?10.0??(2).
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: June 16, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuntaro Watanabe, Kenji Aoki, Toshifumi Mori, Atsushi Tani, Takaaki Kaya, Yoshihiro Nakagawa, Tetsuya Kinumatsu, Takashige Kasuya
  • Publication number: 20150104740
    Abstract: Toners of respective colors of a full-color toner set each contain a binder resin which is polyester resin; and a release agent dispersing aid which is styrene acrylic copolymer resin having at least one of an ?-methylstyrene structure and a styrene structure. The styrene acrylic copolymer resin is contained in an amount of 7 parts by weight to 14 parts by weight with respect to 100 parts by weight of the polyester resin. The full-color toner set has a sum of resistivities of the toners of the respective colors of 410×109 to 510×109 (?·cm).
    Type: Application
    Filed: March 8, 2013
    Publication date: April 16, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Shintaro Fukuoka, Tadayuki Sawai, Yoritaka Tsubaki, Keigo Mitamura, Yui Kawano, Keiichi Kikawa
  • Publication number: 20140369723
    Abstract: An image-forming apparatus includes an image unit that forms an image using at least one of a white toner and a color toner having a lower storage modulus than the white toner and a fixing unit that fixes the image to a medium with heat. A time P calculated by subtracting a fixing time for which an image of the color toner alone is fixed to normal paper used as the medium from a fixing time for which an overlaid image of the white toner and the color toner is fixed to color paper used as the medium is more than 0 ms and less than 30 ms.
    Type: Application
    Filed: November 14, 2013
    Publication date: December 18, 2014
    Applicant: Fuji Xerox Co., Ltd.
    Inventors: Sakon TAKAHASHI, Yutaka KIUCHI, Masayo HIGASHIMURA, Atsumi KURITA
  • Patent number: 8908243
    Abstract: An image forming apparatus includes an image forming unit configured to from a measurement image on a recording paper by a color material, a fixing unit configured to fix the measurement image onto the recording paper by heating, a measurement unit configured to measure the measurement image fixed onto the recording paper downstream of the fixing unit in a conveyance direction of the recording paper, and a control unit configured to perform control such that a period of time from when the recording paper passes through the fixing unit until the measurement unit measures color of the measurement image is longer than a period of time from when the recording paper passes through the fixing unit until the measurement unit measures density of the measurement image.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: December 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taichi Takemura
  • Publication number: 20140356035
    Abstract: An image forming apparatus includes: a first image forming section that forms a first image using a first toner containing flat pigment particles; a second image forming section that forms a second image using a second toner not containing the flat pigment particles; and a fixing section that fixes the first image to a recording medium with a quantity of heat that is smaller than that for a case where the fixing section fixes a third image not including the first image but including the second image.
    Type: Application
    Filed: December 5, 2013
    Publication date: December 4, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasumitsu HARASHIMA, Toko HARA, Yutaka KIUCHI, Miho IKEDA, Takaharu NAKAJIMA, Koichiro YUASA
  • Patent number: 8903281
    Abstract: An image forming apparatus includes a first image forming unit configured to form a white developer image on a recording medium using a white developer, at least one second image forming unit configured to form at least one single-color developer image on the recording medium using at least one single-color developer other than the white developer, and a fixing unit configured to fix the white developer image and the at least one single-color developer image to the recording medium so as to form a white image and at least one single-color image. The white image may have a haze value that is higher than that of the at least one single-color image. The white developer may have a softening temperature that is higher than that of the at least one single-color developer.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: December 2, 2014
    Assignee: Oki Data Corporation
    Inventor: Kenji Koido
  • Publication number: 20140341615
    Abstract: An image-forming apparatus includes an image unit that forms an image using a white toner and a color toner and a fixing unit that fixes the image to a medium with heat. The toner mass per unit area of the white toner ? (g/m2) in an image of the color toner superimposed on the white toner formed on paper used as the medium satisfies: 0.03+1.31×Rw?0.47×Rc+0.02×Gw?0.07×Gc???0.05+1.06×Rw+0.42×Rc?0.02×Gw+0.05×Gc where Rw is the average particle diameter (?m) of the white toner, Rc is the average particle diameter (?m) of the color toner, Gw is the storage modulus (kPa) of the white toner at 120° C., and Gc is the storage modulus (kPa) of the color toner at 120° C.
    Type: Application
    Filed: January 9, 2014
    Publication date: November 20, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takayuki YAMASHITA, Sakon TAKAHASHI, Yutaka KIUCHI, Masayo HIGASHIMURA, Kunihiko SATO
  • Publication number: 20140212160
    Abstract: Provided is an image forming apparatus including a control unit and a heating unit for fixing an image on a recording medium and erasing the image on the recording medium. The control unit controls a heating temperature of the heating unit such that the heating temperature of the heating unit falls within any one of a first temperature range which is capable of fixing an inerasable developer, a second temperature range which is capable of fixing an erasable developer, and a fourth temperature range which satisfies both of the first temperature range and a third temperature range which is capable of erasing the erasable developer.
    Type: Application
    Filed: January 31, 2014
    Publication date: July 31, 2014
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventor: Hideaki Fukaya
  • Patent number: 8792794
    Abstract: A fixing device includes a fixing unit with a nip, two rollers, a guide member, a detection unit and an urging unit. The detection unit is disposed substantially parallel to the guide member opposite to the guide member across a recording medium conveyed between the nip and the two rollers. The detection unit detects jamming of the recording medium on the basis of a pressure greater than a predetermined value applied by the recording medium between the nip and the two rollers. The distance between the guide member and the detection unit is greater than the distance between the guide member and the recording medium passing between the nip and the two rollers while being urged by the urging unit.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: July 29, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventor: Jinjyu Okuno
  • Patent number: 8737899
    Abstract: Disclosed is a fixing liquid containing a softening agent that softens resin-containing fine particles by dissolving or swelling at least a part of the resin; a C12-C18 fatty acid; and a C12-C18 fatty acid salt. The fixing liquid is mixed with water serving as a dilution solvent.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: May 27, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuo Katano, Tsuneo Kurotori, Tomoyasu Hirasawa, Tomoaki Sugawara, Takuma Nakamura, Yuko Arizumi
  • Patent number: 8699105
    Abstract: A group of spectral data of print mediums and a group of laminating film spectral data are stored, which correspond to a plurality of colors on a color chart. The type of print medium and the type of laminating film are entered. From the group of spectral data of print mediums and the group of laminating film spectral data, spectral data corresponding to the entered type of print medium are entered as first spectral data, and spectral data corresponding to the entered type of laminating film are entered as second spectral data. Colorimetric value data of the colors are calculated using the first spectral data and the second spectral data.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: April 15, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Takeshi Katayama
  • Publication number: 20130078001
    Abstract: An image forming apparatus includes a first image forming unit configured to form a white developer image on a recording medium using a white developer, at least one second image forming unit configured to form at least one single-color developer image on the recording medium using at least one single-color developer other than the white developer, and a fixing unit configured to fix the white developer image and the at least one single-color developer image to the recording medium so as to form a white image and at least one single-color image. A haze value of the white image is higher than a haze value of each of the at least one single-color image.
    Type: Application
    Filed: September 21, 2012
    Publication date: March 28, 2013
    Applicant: OKI DATA CORPORATION
    Inventor: Oki Data Corporation
  • Patent number: 8400674
    Abstract: A PDL controller divides a print job of providing instructions to perform printing using color toners and a clear toner into a print job using the color toners and a print job using the clear toner in accordance with a ratio in an entire image formed on the basis of the print job of an image area when a sum of a total amount of the color toners used and a predetermined amount of the special toner used exceeds an upper limit of an amount of toner used in printing, and transmits the print jobs to a printing apparatus. Also, when printing based on the print job using the clear toner is to be performed, the PDL controller allows a display unit to display a guide to set a printout generated on the basis of the print job using the color toners to a paper feeder.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: March 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroya Igarashi
  • Publication number: 20130011171
    Abstract: An image forming apparatus including multiple imaging units and a fixing unit is provided. Each of the imaging units includes an image bearing member, a developing device containing a toner including a pressure-induced phase transition resin or a thermoplastic resin, a transfer device, and an image bearing member cleaner, and is adapted to form a toner image with the toner. The fixing unit includes a pressure fixing device adapted to fix the toner including the pressure-induced phase transition resin on the recording medium by applying a temperature Tb and a pressure Pb thereto in a pressure fixing nip, and a heat fixing device adapted to fix the toner including the thermoplastic resin on the recording medium by applying a temperature Ta and a pressure Pa thereto in a heat fixing nip. The image forming apparatus satisfies the following inequations: Tb<Ta and Pb>Pa.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 10, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hirohmi Tamura, Satoru Ishikake, Hirokatsu Suzuki, Ryuji Yoshida, Takashi Bisaiji
  • Patent number: 8339661
    Abstract: An image processing apparatus that outputs color information to an image forming apparatus that forms a toner image on a sheet using color toner and transparent toner, the color information representing a toner image to be formed on the sheet by the image forming apparatus, including: an extracting unit that extracts a characteristic region from input image data; a first calculating unit that creates, based on the image data, first color information on a toner image corresponding to the color toner; a second calculating unit that calculates second color information by which a prescribed amount of the transparent toner is applied to the characteristic region extracted by the extracting unit; and an outputting unit that outputs the first and second color information calculated by the first and second calculating units to the image forming apparatus.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 25, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Shigeki Washino
  • Patent number: 8323863
    Abstract: An image forming method includes forming at least one electrostatic charge image on at least one image holding member, developing the at least one electrostatic charge image using a black toner and a color toner to form toner images, transferring toner images to a receiving body, and fixing the toner images by light-irradiation fusing, the black toner being melted in the light-irradiation fusing, the color toner containing an infrared absorber, a light absorptance of the color toner at a peak wavelength of the light irradiated in the light-irradiation fusing being from about 79% to about 98% of a light absorptance of the black toner at the peak wavelength, and the color difference ?E of the color toner due to the presence or absence of the infrared absorber is in a specific range.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: December 4, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Miho Watanabe, Takashi Matsubara, Shinji Hasegawa, Makoto Furuki
  • Publication number: 20120275803
    Abstract: An image forming apparatus forms a stamp image with a stamp image developer having a color developing temperature at a color erasing temperature of an image forming developer, and forms a mask image with a mask image developer having a color re-developing temperature at a temperature not lower than a color re-developing temperature of the image forming developer. Accordingly, when a confidential document is color-erased, the stamp image develops color, and when the color-erased confidential document again develops color, it can not be read.
    Type: Application
    Filed: April 17, 2012
    Publication date: November 1, 2012
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki TAGUCHI, Isao Yahata, Takahiro Kawaguchi, Ken Iguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
  • Publication number: 20120251168
    Abstract: An electrophotographic image forming method, including fixing one or more chromatic toner images on a recording medium; and fixing a transparent toner image on the chromatic toner image to partially or wholly increase glossiness of the recording medium, wherein the chromatic toner image has an average length (Sm) of concavities and convexities of from 50 to 350 ?m.
    Type: Application
    Filed: March 9, 2012
    Publication date: October 4, 2012
    Inventors: Masashi Nagayama, Mitsuo Aoki, Hisashi Nakajima, Saori Yamada
  • Patent number: 8179568
    Abstract: What is disclosed is a novel system and method for minimizing dot visibility in color marking devices capable of dot-on-dot printing. The present method achieves minimum dot visibility for a given dispersed-dot screen by performing a CMYK to CMYKRGB conversion which uses less visible dots as much as possible before more visible dots are introduced. The output color dot coverages are calculated sequentially to minimize the coverage of more visible dots in a decreasing order of brightness. Resulting images have noticeably reduced halftone graininess, particularly in the mid to darker tone areas. The present method is also computationally efficient.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: May 15, 2012
    Assignee: Xerox Corporation
    Inventor: Zhen He
  • Patent number: 8121505
    Abstract: A hybrid printing system includes (a) a media path assembly having an image transfer/transport unit for receiving and moving media to a fusing apparatus; (b) a process color image output terminal (IOT) assembly including first imaging components for forming and transferring color images onto the intermediate image receiving member, the color IOT assembly being mounted for forming a first image transfer nip with one of a first side and a second and opposite of the image transfer/transport unit; and (c) a monochrome image output terminal (IOT) assembly mounted opposite the process color image output terminal (IOT) assembly for forming a second image transfer nip with the other of the first side and the second and opposite of the image transfer/transport unit, the monochrome image output terminal (IOT) assembly including a moveable image bearing member and second imaging components for forming monochrome images on the image bearing member.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 21, 2012
    Assignee: Xerox Corporation
    Inventor: Mark S Jackson
  • Patent number: 7923183
    Abstract: An image forming apparatus includes: an image holding member; a toner image formation device that forms a toner image using a toner, the toner including a first component and a second component that are present separately from each other and form a color when they are reacted with each other, and a photocurable composition containing either one of the first component and the second component, the photocurable composition being cured or maintained in an uncured state by applying color forming information, to control the reaction for color formation; a color forming information applying device; a transfer device; a fixing device; and a color formation device.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: April 12, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Isao Ito
  • Patent number: 7873313
    Abstract: An image forming apparatus that includes an image forming component, a flash fixing component and a control component is provided. The image forming component forms toner images using at least two toners respectively having different colors and transfers the formed toner images onto a recording medium. The flash fixing component emits a flash light onto the recording medium onto which the toner images have been transferred by the image forming component and fixes the toner images. The control component that controls the image forming component to form the toner images so that, among the toner images, a second color toner is adhered to a surface of a toner layer formed by a first toner color at a region at which the toner layer formed by the first toner color is formed, the absorbance of the second color toner being lower than that of the first color toner.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: January 18, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroshi Nou, Akira Iwaishi, Mitsuhiro Mori, Kunihiko Sato
  • Publication number: 20100150620
    Abstract: A tandem color electrostatographic printer apparatus has five or more color printing stations or modules for applying respective color separation toner images to a receiver member to form a pentachrome color image in a single pass. A fuser station fuses the pentachrome color image. A clear toner overcoat is then applied to the fused pentachrome toner image and enhanced glossing of the image is provided by a belt glosser to improve color gamut.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 17, 2010
    Inventors: Yee S. Ng, Robert C. Logel
  • Patent number: 7720421
    Abstract: An apparatus that includes a first print engine positioned to print front side information on a base material. The first print engine further includes a multi-color print head having a pile height leveling ink delivery system. A fuser is positioned to affix the front side information on the base material, and a second print engine positioned to print a removable scratch-off layer covering at least part of the front side information after the fuser affixes the front side information.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: May 18, 2010
    Assignee: Xerox Corporation
    Inventor: Trevor James Snyder
  • Publication number: 20090257793
    Abstract: The image forming apparatus includes an image forming portion forming a toner image on a recording material, and a fixing portion heating and fixing the toner image formed on the recording material to the recording material, wherein the apparatus has a cleaning mode in which the fixing portion is cleaned, and when the cleaning mode is set, the image forming portion forms a predetermined toner image on the recording material, and the fixing portion then heats and fixes the predetermined toner image to the recording material to form a cleaning sheet which is heated and conveyed to clean the fixing portion. By the virtue of the present invention, it achieves high cleaning performance in which the fixing portion is cleaned by the cleaning sheet.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 15, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mahito Yoshioka, Daizo Fukuzawa, Noriaki Sato, Tooru Imaizumi, Munehito Kurata, Kuniaki Kasuga
  • Patent number: 7580649
    Abstract: A fixing device of this invention enables variable control of power to be supplied to a heat roller side or a press roller side in accordance with the temperature of the heat roller and the press roller while each mode is carried out. The heating range of a first induction heating coil on the heat roller side and the heating range of a first halogen lamp heater on the press roller side are set differently. In a copy mode, the temperature of the heat roller and the press roller is controlled in detail, and also controlled in accordance with the size of a sheet paper. In a copy standby mode, only the power required for maintaining a set temperature is supplied.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: August 25, 2009
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Toshihiro Sone
  • Publication number: 20090111040
    Abstract: A pigment particle coated with at least one of a resin and a charge control surface additive, wherein the pigment particle is a pearlescent or metallic pigment. The pigment adds pearlescent effects and is a size and charge as to be used as a toner material in electrostatographic image formation.
    Type: Application
    Filed: October 25, 2007
    Publication date: April 30, 2009
    Applicant: XEROX CORPORATION
    Inventors: Richard P.N. VEREGIN, Karen A. MOFFAT, Michael S. HAWKINS, Cuong VONG, Eric M. STROHM, Wafa Faisul BASHIR, Shigang QIU
  • Publication number: 20090097889
    Abstract: An image forming apparatus that includes an image forming component, a flash fixing component and a control component is provided. The image forming component forms toner images using at least two toners respectively having different colors and transfers the formed toner images onto a recording medium. The flash fixing component emits a flash light onto the recording medium onto which the toner images have been transferred by the image forming component and fixes the toner images. The control component that controls the image forming component to form the toner images so that, among the toner images, a second color toner is adhered to a surface of a toner layer formed by a first toner color at a region at which the toner layer formed by the first toner color is formed, the absorbance of the second color toner being lower than that of the first color toner.
    Type: Application
    Filed: July 8, 2008
    Publication date: April 16, 2009
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroshi NOU, Akira Iwaishi, Mitsuhiro Mori, Kunihiko Sato
  • Publication number: 20090003879
    Abstract: A fixing step before smoothing by a smoothing device causes the phenomenon that a photo-medium is not properly separated from a fixing device due to a toner receiving layer of the photo-medium. Therefore, in order to prevent the occurrence of defective separation in the fixing device, a predetermined image pattern is formed using a toner containing a wax component in a margin, i.e., a non-image forming region, at the leading end of the photo-medium.
    Type: Application
    Filed: June 16, 2008
    Publication date: January 1, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Jiro Ishizuka
  • Publication number: 20080298860
    Abstract: An image forming apparatus includes a toner image forming unit for effecting an image forming operation to form toner image on a recording material, wherein the toner image comprises chromatic toner image components with different colors and a transparent toner image component overlaid thereon; a fixing unit for effecting a fixing operation to heat and fix the toner image on the recording material; a switching unit for switching, in accordance with information relating to a maximum toner amount per unit area in a zone in which the transparent toner component is present, operations to a mode in which the formation of the toner image is effected through a plurality of such image forming operations, and the fixing of the toner image is effected through a plurality of such fixing operations.
    Type: Application
    Filed: May 22, 2008
    Publication date: December 4, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Haruhiko Omata
  • Patent number: 7437086
    Abstract: An image forming apparatus capable of performing an image forming operation together with temperature rise by heating of a fixing apparatus to ensure a good fixability and a shortest first print out time and to prevent loss of power consumption without burdening a constitutional member of the image forming apparatus (e.g., life-shortening of the constitutional member) is provided. The image forming apparatus includes a fixing apparatus for heat-fixing a toner image on a recording material and a detection member for detecting a toner of a fixing apparatus member and performs simultaneously temperature rise by heating of the fixing apparatus and an image forming operation including a pre-process and an image forming sequence.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: October 14, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuaki Ono
  • Publication number: 20080247788
    Abstract: Provided are a toner containing at least a binder resin and a colorant, the toner having a specific hue angle and an absorbance at a specific wavelength in reflectance spectrophotometry, and a full-color image-forming method involving the use of the toner, the method including the steps of: forming an electrostatic image on a charged electrostatic image bearing member; developing the formed electrostatic image with the toner to form a toner image; transferring the formed toner image onto a transfer material; and fixing the transferred toner image to the transfer material to form a fixed image.
    Type: Application
    Filed: June 5, 2008
    Publication date: October 9, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yasukazu Ayaki, Shigeto Tamura
  • Publication number: 20080131176
    Abstract: An apparatus that includes a first print engine positioned to print front side information on a base material. The first print engine further comprises a multi-color print head comprising a pile height leveling ink delivery system. A fuser is positioned to affix the front side information on the base material, and a second print engine positioned to print a removable scratch-off layer covering at least part of the front side information after the fuser affixes the front side information.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Inventor: Trevor James Snyder
  • Publication number: 20080069609
    Abstract: A fuser member comprising a) a substrate, and having thereon; b) an intermediate conformable layer comprising a silicone rubber, and having thereon; and c) an outer layer comprising a fluoroelastomer and a fluoropolymer filler.
    Type: Application
    Filed: April 26, 2007
    Publication date: March 20, 2008
    Inventors: Carla M. Santos, Joy L. Longhenry, Kevin H. Taft, Karen E. Halliley
  • Patent number: 7196287
    Abstract: A fuser includes a fusing roll unit having a fusing roll, a pressurizing roll unit having a pressurizing roll and a coil spring resiliently biasing the pressurizing roll. The units are secured by a pair of engagements. One engagement includes a hook provided at the fusing roll unit and an eye provided at the pressurizing roll unit and capable of guiding and thus moving the units pivotably relative to each other when said hook is engaged therein. The fuser can thus have a simple structure formed of a reduced number of components and enhancing workability and facilitating its fabrication.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 27, 2007
    Assignees: Funai Electric Co., Ltd., Lexmark International, Inc.
    Inventor: Toshinori Asai
  • Patent number: 7186462
    Abstract: A fuser member component to fuse the transferred developed image to the copy substrate, wherein the fuser member includes a substrate, an outer polymeric layer, and a release agent material coating on the outer polymeric layer, and the release agent material coating includes a T-type amino-functional siloxane release agent material having amino-functional groups, and the T-type amino-functional siloxane release agent material has the following Formula I: wherein A represents —R4—X, wherein R4 represents an alkyl group having from about 1 to about 10 carbons, X represents —NH2 or —NHR5NH2 with R5 representing an alkyl group having from about 1 to about 10 carbons; R1 and R2 are the same or different and each is selected from the group consisting of an alkyl having from about 1 to about 25 carbons, an aryl having from about 4 to about 10 carbons, and an arylalkyl; R3 is a substituted diorganosiloxane chain having from about 1 to about 500 siloxane units; b and c are numbers and are the same or different and
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: March 6, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Gervasi, Alexander N. Klymachyov, Samuel Kaplan, Santokh S. Badesha, Douglas B. Wilkins, George A. Gibson
  • Patent number: 6853813
    Abstract: An image formation apparatus and method forms an image on a recording medium and includes a toner applying step for applying fusible powder toner to a recording medium to form a toner image, a semi-fixing step for semi-fixing the toner image, an ink applying step for applying liquid ink containing a coloring to the recording medium to form an ink image, and a thermal fixing step for thermally fixing an image formed by the toner applying step and the ink applying step.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: February 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takeshi Miyazaki
  • Patent number: 6721524
    Abstract: An image forming device includes an image forming unit and a thermal fixing unit. The image forming unit uses a plurality of different color developing agents to form a color image on a recording medium. The plurality of different color developing agents are configured from binding resins with the same thermal properties. The plurality of different color developing agents include at least a high-resistance developing agent and a low-resistance developing agent. The high-resistance developing agent has a higher electrical resistance than the low-resistance developing agent and a lower charge-to-mass ratio than the low-resistance developing agent. The thermal fixing unit thermally fixes the color image onto the recording medium.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: April 13, 2004
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Masashi Suzuki
  • Publication number: 20040002012
    Abstract: An oil-free process for forming a fused toner image on a receiver comprises: forming on a receiver an image comprising toner particles that contain a non-crosslinked linear polymeric binder, a colorant, and a release agent; and contacting the receiver bearing the toner particle image with a fuser member comprising a support and a release layer overlying the support. The release layer comprises a cured fluorocarbon thermoplastic random copolymer, a particulate filler comprising zinc oxide and tin oxide and a cured aminosiloxane copolymer, the cured fluorocarbon thermoplastics random copolymer containing —(CH2CF2)x—, —(CF2CF(CF3)y—, and —(CF2CF2)z— subunits, wherein x is from 1 to 40 or 60 to 80 mole percent, y is from 10 to 90 mole percent, z is from 10 to 90 mole percent, and x+y+z equals 100 mole percent.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 1, 2004
    Applicant: NexPress Solutions LLC
    Inventors: Joseph A. Pavlisko, Jiann-Hsing Chen, Dinesh Tyagi, Muhammed Aslam
  • Patent number: 6641965
    Abstract: A color toner for electrophotography, preferably used as a flash fixing toner which can be processed at a high speed, and exhibit excellent fixing property, high image resolution (image reproducibility) when fixed, and color reproducibility by color overlapping, and having a preferable color tone, with which a multi-color image can be formed. The color toner for electrophotography is used for the extreme bottom layer of a multi-color image comprised of laminating at least two types of toners that are selected from black toner, magenta toner, yellow toner, and cyan toner, and contains a coloring agent and an infrared ray absorbent, the color toner for electrophotography has a contrast ratio in the range of 35% to 95%.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: November 4, 2003
    Assignee: Fuji Xerox, Co., Ltd.
    Inventors: Yasushige Nakamura, Tomoaki Tanaka, Yoshimichi Katagiri, Masae Nakamura
  • Patent number: 6342327
    Abstract: A sepiomelanine pigment is employed as a coloring agent in a developing agent for forming sepia color, black color and full color images without employing carbon black.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: January 29, 2002
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Takashi Urabe
  • Patent number: 6300024
    Abstract: A toner is principally constituted by a binder resin, a colorant and a wax. The toner has a maximum heat-absorption peak of 60-135° C. as measured by differential scanning calorimetry (DSC). The toner further has a viscoelastic characteristic measured at an angular frequency of the toner of 6.28 rad/sec including: a temperature giving a loss molecules G″ of 3×104 Pa of 90-115° C., a temperature giving a loss modulus G″ of 2×104 Pa of 95-120° C., a temperature giving a loss modulus G″ of 1×104 Pa of 105-135° C., a tan &dgr; (loss modulus G″/storage modulus G′) when G″=1×104-3×104 Pa of 0.6-2.0, a storage modulus at 170° C. (G′ (170° C.)) of 1×102-1×104 Pa, a loss modulus at 170° C. (G″ (170° C.)) of 1×102-1×104 Pa, and a ratio of a tan &dgr; at 170° C. (tan &dgr;170) to a tan &dgr; at 150° C. (tan &dgr;150) (tan &dgr;170/tan &dgr;150) of 1.05-1.6.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: October 9, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Yusa, Satoshi Yoshida, Takashige Kasuya, Yuki Karaki
  • Patent number: 6292647
    Abstract: A fixing device includes a first rotation member formed hollow cylindrical and rotatable in a predetermined direction, a second rotation member brought into contact with the first rotation member at a predetermined pressure, so as to be rotated as the first rotation member rotates, creating a contact section with the first rotation member, through which an object to be heated can pass, a first induction heating device, provided within the first rotation member, for applying an alternating magnetic field which is in parallel with a circumferential direction of the first rotation member, onto the first rotation member, and a second induction heating device, provided within the first rotation member such as to surround an outer section of a part of the first induction heating device, and be close to both end portions of the first rotation member, for applying an alternating magnetic field which is in parallel with a circumferential direction of the first rotation member, onto the first rotation member, the fixin
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: September 18, 2001
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Haruhiko Ishida
  • Patent number: 6219519
    Abstract: Hot offset of black toner is reduced or eliminated in a color electrophotographic imaging device, such as a laser printer, by applying a minimal layer of non-black toner in addition to the black toner on a print media. The non-black toner, such as cyan, magenta or yellow toner, acts as a release agent for reducing or eliminating hot offset of the black toner during fusing of the toner to the media. The non-black toner is applied as a thin layer just sufficient to reduce hot offset of the black toner and such that an appearance of a resultant image formed retains a visual perception of being a black toner only image. In an alternate embodiment, the thin layer of non-black toner is applied in response to coated media being processed, such as overhead transparencies, that are more susceptible to hot offset.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: April 17, 2001
    Assignees: Hewlett-Packard Company, 3M Innovative Properties Company
    Inventors: Judith A. Garzolini, Kristina J. Wood, Kenneth E. Heath, Joseph C. Carls, Dennis D. Anderson
  • Patent number: 6212354
    Abstract: Hot offset of black toner is reduced or eliminated in a color electrophotographic imaging device, such as a laser printer, by applying a minimal layer of non-black toner in addition to the black toner on a print media. The non-black toner, such as cyan, magenta or yellow toner, acts as a release agent for reducing or eliminating hot offset of the black toner during fusing of the toner to the media. The non-black toner is applied as a thin layer just sufficient to reduce hot offset of the black toner and such that an appearance of a resultant image formed retains a visual perception of being a black toner only image. In an alternate embodiment, the thin layer of non-black toner is applied in response to coated media being processed, such as overhead transparencies, that are more susceptible to hot offset.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: April 3, 2001
    Assignees: Hewlett-Packard Company, 3M Innovative Properties Company
    Inventors: Judith A. Garzolini, Kristina J. Wood, Kenneth E. Heath, Joseph C. Carls, Dennis D. Anderson
  • Patent number: 5893019
    Abstract: In a fusing device having first to third rollers, the first and second rollers are forcibly driven so that a peripheral speed of the third roller is higher than of the first roller. Further, a movable guide is set so as to change the number of nip portions through which a recording medium passes.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: April 6, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Kaneo Yoda, Hiroshi Tanaka, Kenjiro Yoshioka, Saburo Furukawa
  • Patent number: 5805969
    Abstract: An electrostatographic printer is provided in which a web of receiving material (12) is fed along a web path, at least one toner image is formed on at least a first face of the receiving material (12) as it is fed along the web path and the toner image is fixed onto the receiving material (12). A finishing element (66, 67) positioned downstream of the fixing station (16) contacts the first face of the receiving material (12) while the finishing element is at a temperature above the glass transition temperature T.sub.g of the toner to modify the finish of the toner image.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: September 8, 1998
    Assignee: Xeikon N.V.
    Inventors: Johan Denise Gustave Elsermans, Wim Jacques Josephine Michielsen, Jean Alois Rachel Norbert Van Daele
  • Patent number: RE45252
    Abstract: An image forming apparatus capable of performing can perform an image forming operation together with temperature rise by heating of a heat fixing apparatus operation to ensure a good fixability and a shortest short first print out time and to prevent loss of while minimizing power consumption without and not over-burdening a constitutional member of the image forming apparatus (e.g., life-shortening shortening the life of the constitutional member)is provided. The image forming apparatus includes an image forming unit and a fixing apparatus unit for heat-fixing a toner image on a recording material and a detection member for detecting a toner of a fixing apparatus member and performs simultaneously temperature rise by heating of the fixing apparatus and an image forming operation including a pre-process and an image forming sequence.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: November 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuaki Ono