Thermoplastic Deformation Patents (Class 399/132)
  • Patent number: 10409190
    Abstract: A seal member is injection-molded with a simple structure that needs no complicated assembling process. An optical scanning device 21 includes a light source unit 202 from which a light beam is emitted; a rotating polygon mirror 203 that deflects the light beam such that the light beam emitted from the light source unit 202 is scanned over a photosensitive member; an optical component that directs the light beam deflected by the rotating polygon mirror 203 onto the photosensitive member; an optical housing 20 that contains the light source unit 202, the rotating polygon mirror 203, and the optical component; and a cover 30 that covers an opening of the optical housing 20.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: September 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hitoshi Iwai
  • Patent number: 9864295
    Abstract: An upper cover attached to an optical box included in an optical scanning device includes a flow path in which a sealing member is injection-molded. The flow path includes a first bottom portion, a second bottom portion, and a step. The step is formed between the first bottom portion and the second bottom portion, and the area where the sealing member and the upper cover adhere to each other increases by an amount corresponding to the provided step so that adhesiveness between the sealing member and the upper cover is enhanced.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: January 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshitaka Otsubo
  • Patent number: 9632476
    Abstract: A chassis structure includes: a chassis that houses a component used for an image forming apparatus inside and that includes an opening; a cover member that covers the opening of the chassis; and a seal member that is provided between the cover member and the chassis and that, when the cover member is attached to the chassis, is compressed and deformed so as to seal a gap between the cover member and the chassis. An attached section of the cover member to which the seal member is attached is provided with a hole.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: April 25, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Daisuke Yoshida, Takashi Yamakawa
  • Patent number: 8805254
    Abstract: A transfer apparatus includes a transfer roller which transfers developer on an image carrier onto a recording medium conveyed along a conveyance path, a supporting frame which is provided at an upstream of a transferring portion where the image carrier and the transfer roller are closest, in the conveyance path, and is provided at a side of the transfer roller with respect to the conveyance path, a flexible guide member which has a thin plate shape, and is attached to the supporting frame at an upstream of the transferring portion in the conveyance path to guide the record medium to the transferring portion, and a inflexible protrusion supporting member which is provided on the supporting frame between the transferring portion and the guide member in the conveyance path, and which protrudes toward the conveyance path to support a trailing edge of the record medium after passing the guide member.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: August 12, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hideaki Deguchi, Keita Hironaka, Yusuke Ozaki
  • Publication number: 20120251174
    Abstract: Provided is a method for forming an image containing the sequential steps of: forming a foil adhesion toner image on an image supporting substrate with a foil adhesion toner (?) which comprises at least a binder resin containing a thermoplastic resin using an electrophotographic method; forming a foil image on the foil adhesion toner image by contacting a transfer foil on the foil adhesion toner image with applying heat; and forming a visible toner image on the image supporting substrate which has been formed with the foil image with at least one image forming toner (?) using an electrophotographic method, followed by fixing the visible toner image by applying heat and pressure thereto, wherein ?(Tsp(?)?Tsp(?)) is 5 to 50° C., provided that Tsp (?) is a softening point of the foil adhesion toner (?) and Tsp (?) is a softening point of the image forming toner (?).
    Type: Application
    Filed: March 22, 2012
    Publication date: October 4, 2012
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Aya SHIRAI, Tatsuya NAGASE, Asao MATSUSHIMA, Yasuko UCHINO, Ryuichi HIRAMOTO, Michiyo FUJITA
  • Patent number: 8253973
    Abstract: A method for determining a location on an image bearing surface of an image printing system where a toner image is to be printed is provided. The method comprises generating a first signal from a detector that is configured to detect a reference mark on the image bearing surface, and a second signal from a clock system that counts incremental movements of the image bearing surface, determining a first value that correlates the first signal and the second signal, where the first value corresponds to a value of the second signal at a start of characterization of the image bearing surface, and determining a second value using the first value, where the second value provides the location on the image bearing surface where the toner image is to be printed.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: August 28, 2012
    Assignee: Xerox Corporation
    Inventors: Ralph Huedepohl, Terri A Clingerman, Gerald L. Coy
  • Publication number: 20090226213
    Abstract: A scanning optical apparatus includes an optical box accommodating a deflection device for scanningly deflecting a laser beam emitted by a light source and an optical part for directing the laser beam toward a member-to-be-scanned; a cap mounted to the optical box; a sealing member extending from the cap, wherein the sealing member is made of a material exhibiting easier deformation than the cap, and is contacted to a wall of the optical box in a deformed state.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 10, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shin Mogi
  • 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
  • Patent number: 6574447
    Abstract: In an electrophotographic device, a method is provided in which laser power is regulated at two predetermined points of gradation. More specifically, a first laser power regulating means which regulates the magnitude of a laser power output and a second laser power regulating means which regulates the slope of laser power gradation characteristic are provided. Thereby, stabilization of the laser power output value is realized at any stage of the gradation, and an electrophotographic device can be provided which reduces variability in image quality between electrophotographic devices.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: June 3, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Kazuyoshi Matsuo, Makoto Otaka
  • Publication number: 20030044595
    Abstract: Thermal transfer articles of the invention comprising a carrier, optionally a release layer, a color layer releasably adhered thereto, and optionally an adherence layer on the bottom side of the color layer. Also graphic imaging compositions and methods for thermal transfer using such articles and compositions and graphic articles made by such methods. The transfer articles 1) exhibit thermoplastic, low cohesive properties during transfer such that good image resolution and transfer is achieved and 2) are radiation crosslinked after transfer such that a durable image is formed.
    Type: Application
    Filed: January 9, 2001
    Publication date: March 6, 2003
    Applicant: Minnesota Mining
    Inventors: Paul D. Christian, Nancy H. Phillips
  • Publication number: 20010030680
    Abstract: In an electrophotographic apparatus, regions having at least three different potential levels Vc, Vw, and Vr are formed on a photosensitive member by using an exposing device, and developing processes respectively using colored particles of different kinds are performed by normal development and reversal development on two potential levels Vc and Vr excluding the intermediate potential level Vw. The apparatus has an auxiliary exposing unit for forming a fringe development preventing potential in an edge of an image forming region in order to prevent fringe development from occurring. The auxiliary exposing unit sets an auxiliary exposure amount by performing pulse-width modulation on a laser driver.
    Type: Application
    Filed: April 13, 2001
    Publication date: October 18, 2001
    Inventors: Teruaki Mitsuya, Nobuyoshi Hoshi, Hisao Okada, Yoshihiko Sano, Shinichi Akatsu, Shinya Kobayashi
  • Patent number: 5672453
    Abstract: An electrode 2c and a pinene polymer recording layer 2a with a molecular weight of 500 to 10000 are successively stacked on a substrate 2c, as shown in FIG. 3. By carrying out thermal development, information electric charge that is formed on the resin surface is formed into a thermally stable frost image without decay of the information electric charge. Since no photoconductive layer is needed, when transmitted or reflected light is used to reproduce the frost image, there is no effect of the coloring of a photoconductive layer. If exposure is effected under the application of a voltage, since the depth of dimple patterns of a frost image varies in accordance with the quantity of exposure energy, tonal reproducibility is obtained. In addition, it is possible to obtain high resolution and make an original for OHP, a microfilm, a slidefilm, etc. which is of good quality and has high fidelty to the original document.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: September 30, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Obata, Minoru Utsumi, Masayuki Iijima, Masato Okabe, Hironori Kamiyama