With Correction Or Erasing Means Patents (Class 347/179)
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Publication number: 20130229477Abstract: An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium passing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.Type: ApplicationFiled: April 15, 2013Publication date: September 5, 2013Applicant: Toshiba Tec Kabushiki KaishaInventors: Hiroyuki TAKI, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Patent number: 8525858Abstract: Printers and methods of printer operation are disclosed for detecting print line loss. Embodiments include at least one stable frame element and a print head that is moveable with respect to the stable frame element; and at least two optical elements mounted on one or more of the stable frame element and the print head, the optical elements oriented with respect to one another so as to detect motion of the print head.Type: GrantFiled: December 14, 2010Date of Patent: September 3, 2013Assignee: International Business Machines CorporationInventors: Dean F. Herring, Kevin H. Vorhees
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Patent number: 8514258Abstract: An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium pas sing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.Type: GrantFiled: November 2, 2012Date of Patent: August 20, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Patent number: 8487971Abstract: According to one embodiment of the present invention, an erasing apparatus includes a used sheet stacking tray, an image erasing unit, a stand-by tray, a stand-by tray driving unit, and an erased sheet stacking tray. The used sheet stacking tray stacks thereon a used sheet on which an image is formed using an erasable colorant of which a color is erased by a predetermined heating process. The image erasing unit performs the heating for the used sheet which is received one by one from the used sheet stacking tray and discharges an erased sheet from which the image formed on the used sheet is erased. The stand-by tray has a mechanism which can be driven in a predetermined direction and places thereon the erased sheet discharged by the image erasing unit. The stand-by tray driving unit drives the stand-by tray and enables the erased sheet to free-drop. The erased sheet stacking tray is disposed under the stand-by tray and stacks thereon the erased sheet which free-drops from the stand-by tray.Type: GrantFiled: March 1, 2011Date of Patent: July 16, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8487972Abstract: According to one embodiment, a decoloring apparatus includes: a heating rotating member having roughness (Rz) of a surface, which comes into contact with a conveyed sheet, equal to or larger than 3.5 ?m and equal to or smaller than 6.0 ?m and configured to heat and decolor a decolorable colorant on the sheet; and a pressing member configured to come into press contact with the heating rotating member to form a nip section between the pressing member and the heating rotating member and cooperate with the heating rotating member to nip and convey the sheet.Type: GrantFiled: April 25, 2011Date of Patent: July 16, 2013Assignee: Toshiba Tec Kabushiki KaishaInventors: Takayasu Aoki, Koji Imamiya, Noboru Furuyama
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Patent number: 8482786Abstract: An image forming apparatus acquires a print target image, scans an image on a sheet, recognizes reuse information in the image scanned from the sheet, generates reuse information after printing the print target image from the recognized reuse information and the acquired print target image, selects an area where the reuse information can be printed, in the acquired print target image, combines the reuse information with the selected area in the print target image, deletes the image on the sheet from which the image is scanned, and forms the combined image on the sheet from which the image is deleted, with a erasable image forming material.Type: GrantFiled: November 3, 2009Date of Patent: July 9, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Shogo Ozawa
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Patent number: 8466941Abstract: According to one embodiment, a sheet conveying apparatus includes: a guide section that forms a one side guide surface of a sheet conveying path, the guide section having a first guide member and a second guide member which are continuously arranged from a conveying direction upstream side to a conveying direction downstream side, at least one of the first guide member and the second guide member being a guide member that rotates to open and close; and a joint section that forms an uneven joint with a conveying direction downstream side end of the first guide member and a conveying direction upstream side end of the second guide member, the downstream side end of the first guide member being arranged further on an inner side than the upstream side end of the second guide member with respect to the sheet conveying path if at least one of the first guide member and the second guide member is closed.Type: GrantFiled: November 11, 2011Date of Patent: June 18, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Toshiaki Oshiro, Tetsuhiro Morita, Hiroyuki Hazu, Hitoshi Adachi, Ken Iguchi, Takahiro Kawaguchi
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Patent number: 8466940Abstract: According to one embodiment, an erasing apparatus including a recording medium removing apparatus includes: a thickness sensor configured to change an output signal according to the thickness of a recording medium; a recording medium conveying mechanism configured to convey the recording medium; a recording medium removing mechanism provided downstream in a recording medium conveying direction of the thickness sensor and configured to remove the recording medium in a direction perpendicular to the recording medium conveying direction; a control unit configured to remove, if the control unit determines that the recording medium is unconveyable, the recording medium from a recording medium conveying path with the recording medium removing mechanism; and a heating roller configured to heat the recording medium to temperature equal to or higher than erasing temperature.Type: GrantFiled: March 1, 2011Date of Patent: June 18, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Takahiro Kawaguchi, Isao Yahata, Ken Iguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8462186Abstract: There is provided a decoloring apparatus including: an image reading unit; a decoloring processing unit; a transmission unit which transmits image data read by the image reading unit to a predetermined management apparatus; a receiving unit which receives a result of determination processing performed on the side of the management apparatus for the sheet from which the image data was read, based on the image data transmitted by the transmission unit; and a transport control unit which controls sheet transport time intervals for secondly or later transported sheets based on a time period from transmission of the image data of a firstly transported sheet by the transmission unit until receiving of the determination result for the firstly transported sheet by the receiving unit if the image reading unit is caused to sequentially read images on three or more sheets.Type: GrantFiled: August 4, 2011Date of Patent: June 11, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8462185Abstract: According to one embodiment, an erasing apparatus including a recording medium removing apparatus includes: a thickness determining unit configured to determine whether the thickness of a recording medium is equal to or larger than a first threshold, a conveyance guide forming a conveying path for the recording medium; a conveyance guide displacing device configured to lift the conveyance guide if the thickness determining device determines that the thickness of the recording medium is equal to or larger than the first threshold, and a removing mechanism configured to remove, from a recording medium conveying path, the recording medium determined as unconveyable.Type: GrantFiled: March 1, 2011Date of Patent: June 11, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8456497Abstract: A decoloring apparatus includes a conveyance path, a paper feeding part, a reading part, a communication part, a decoloring part and a control part. The conveyance path conveys a sheet to respective parts in the apparatus. The paper feeding part feeds a sheet on which an image is formed by a decolorable colorant to the conveyance path from a sheet stack part. The reading part is provided downstream of the paper feeding part in the conveyance path and reads the image of the sheet. The communication part transmits read image data of a preceding sheet to a management apparatus communicably connected to the decoloring apparatus and receives a determination result of a conveyance destination of the preceding sheet obtained by the management apparatus based on the image data. The decoloring part is provided downstream of the reading part in the conveyance path and erases the image of the sheet.Type: GrantFiled: August 8, 2011Date of Patent: June 4, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8451304Abstract: According to one embodiment, an erasing apparatus includes: a recording medium sorting apparatus including a first conveyance guide having a curvature radius smaller than curvature radiuses of all curved surfaces present in a downstream direction in a recording medium conveying path, a second conveyance guide forming the recording medium conveying path in conjunction with the first conveyance guide and set to be capable of opening and closing the recording medium conveying path, and a displacing device configured to open and close the second conveyance guide; and a control unit. If the control unit determines that a jam occurs in the recording medium sorting apparatus, the control unit opens the second conveyance guide to collect a recording medium that causes the jam.Type: GrantFiled: February 14, 2011Date of Patent: May 28, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Patent number: 8441508Abstract: An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium passing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.Type: GrantFiled: June 10, 2010Date of Patent: May 14, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Patent number: 8427516Abstract: An image erasing apparatus includes: a paper feeding tray configured to feed a recording medium; a sensor group including a double-feed detection sensor configured to detect double feed of the recording medium and a media sensor configured to detect the thickness of the recording medium; a recording-medium collecting device, a collection box, or a discharge box configured to collect the recording medium; and a recording-medium conveying device connecting the paper feeding tray, the sensor group, and the recording-medium collecting device, the collection box, or the discharge box on a straight line.Type: GrantFiled: June 17, 2010Date of Patent: April 23, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Takahiro Kawaguchi, Isao Yahata, Hiroyuki Taguchi, Ken Iguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8414210Abstract: An electronic pen having a retractable nib for interacting with a surface. The pen comprises a slidably movable cartridge having a nib for contacting the surface, a retraction mechanism for retracting the cartridge, an actuator coupled to the retraction mechanism, a force sensor providing a reaction to an axial force transmitted from the cartridge, and a processor configured for generating force data indicative of a force detected by the force sensor. The retraction mechanism comprises a barrel for receiving the cartridge, which is adapted for seating the cartridge in either an extended position or a retracted position, whereby the axial force from the cartridge is transmitted to the barrel in the extended position. A biasing mechanism biases the cartridge towards the extended or retracted positions.Type: GrantFiled: June 3, 2009Date of Patent: April 9, 2013Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Paul Lapstun, Matthew John Underwood, Robert John Brice, Zsolt Szarka-Kovacs
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Patent number: 8405696Abstract: A printing sheet reusability determination device includes a sheet carrying path that carries a second state sheet obtained by erasing an erasable image from a first state sheet on which the erasable image is printed, an imaging portion that images the second state sheet on the sheet carrying path, an illumination portion that illuminates the second state sheet on the sheet carrying path at a first irradiation angle when images remaining on the second state sheet are photographed, and at a second irradiation angle smaller than the first irradiation angle when a projected image generated by illuminating the second state sheet is photographed, an irradiation angle changing portion that changes the first irradiation angle and the second irradiation angle, and a reusability determination portion that determines whether or not to reuse the second state sheet based on imaging information obtained by the imaging of the imaging portion at the first irradiation angle and determines whether or not to reuse the second sType: GrantFiled: March 7, 2011Date of Patent: March 26, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Isao Yahata, Hiroyuki Tsuchihashi, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Taki
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Patent number: 8400483Abstract: A printer includes a conveying unit for conveying a rewritable printing medium toward a discharging portion along a conveying path, and the rewritable printing medium is erasable and printable by applying heat energy to the rewritable printing medium. The printer further includes an erasing unit including a heating body for erasing print of the rewritable printing medium by pressing the heating body to be in pressure contact with the rewritable printing medium, a printing unit for printing the rewritable printing medium, a determination unit for determining whether an abnormality occurs in conveyance of the rewritable printing medium, and a control unit for controlling at least one of the erasing unit and the conveying unit for releasing the pressure contact of the heating body on the rewritable printing medium, if the determination unit determines that an abnormality occurs.Type: GrantFiled: September 30, 2010Date of Patent: March 19, 2013Assignee: Toshiba Tec Kabushiki KaishaInventor: Teruyuki Ochiai
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Publication number: 20130057633Abstract: An image erasing apparatus includes: a first carrying section carrying a recording medium; a second carrying section carrying the recording medium; a branching section branching a carrying path into the first carrying section and the second carrying section; a first erasing section erasing an image of the recording medium in the first carrying section; a second erasing section erasing the image of the recording medium in the second carrying section; a third carrying section carrying the recording medium pas sing through the first erasing section to the second carrying section; and a control section selecting the carrying path of the recording medium depending on an image erasing mode.Type: ApplicationFiled: November 2, 2012Publication date: March 7, 2013Inventors: Hiroyuki Taki, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Ken Iguchi
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Patent number: 8378006Abstract: The present invention is a method which erase information printed on a recording medium if necessary and thus reuse the recording medium, and includes 1) decolorable ink compositions which are not erased during the use but erased by a dye readily decolorable by a decolorant, 2) a decolorant composition including a thermal initiator or photoinitiator, and 3) a method for coating the decolorant and applying heat or irradiating UV to erase the dye. According to the present invention, it is possible to prepare various writing inks, and particularly, when applied to recording medium with a magnetic stripe as well as the general purpose papers, it is possible to reduce the production cost significantly, obtain a large import substitution effect of the magnetic ink all of which are imported, and largely reduce the environmental pollution.Type: GrantFiled: October 6, 2008Date of Patent: February 19, 2013Inventors: Jong-Soo Han, Woon Chang Paik, Hyun-Man Shin, Yeong-Gweon Lim, Yong-Hwan Choi
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Publication number: 20130010046Abstract: An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hiroyuki Taguchi, Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8350877Abstract: There is provided a print state detection device for a printed sheet surface including a sheet conveying path on which a sheet printed with an image is conveyed, a contact member that contacts with the surface of the sheet moving on the sheet conveying path, a contact state detecting part that detects a physical phenomenon occurring when the contact member contacts with the sheet, a separating part that separates the difference in the physical phenomenon occurring when the contact member comes into contact with the ground of the sheet surface and when the contact member comes into contact with an image, based on detection information obtained by the detection of the contact state detecting part, and a print state determining part that determines the print state of an image on one sheet based on separation information obtained by the separation by the separating part.Type: GrantFiled: March 7, 2011Date of Patent: January 8, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Takahiro Kawaguchi, Isao Yahata, Ken Iguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8350878Abstract: An image erasing apparatus includes: a supply unit that supplies a recording medium; a recovery unit that recovers the recording medium supplied by the supply unit; a plurality of pairs of carrying rollers that carry the recording medium supplied by the supply unit toward the recovery unit; a detecting unit that acquires information regarding foreign matter made of metal attached to the recording medium; a heating unit that heats the recording medium to a temperature equal to or higher than a color-erasing temperature of a developer; and a carriage control unit that reduces a rotation speed of the plurality of pairs of rollers from a first speed to a second speed when the detecting unit acquires the information regarding the foreign matter made of metal.Type: GrantFiled: March 7, 2011Date of Patent: January 8, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taguchi, Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Publication number: 20130002784Abstract: According to an embodiment, a method for color erasing process includes the steps of : supplying a power to a heat source configured to heat a sheet having an image formed thereon using a color erasable material so as to cause heat generation as warming-up control; stopping the power supply to the heat source for a predetermined period of time in the warming-up control if the temperature of the heat source is increased starting from a temperature lower than a predetermined reference value that is lower than a color erasing temperature of the color erasable material and exceeds the predetermined reference value; performing maintenance control that is power supply control to maintain the temperature of the heat source at the target temperature; and performing, after the passage of the predetermined period of time, a color erasing process by the heat source.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Publication number: 20130002785Abstract: An erasing device includes a line scanner on an upstream side in a recording medium conveying direction, includes a thermal head downstream in the recording medium conveying direction of the line scanner, and includes a platen in a position opposed to the thermal head as a heating device across a recording medium conveying path. The erasing device causes the heat generating elements of the thermal head in positions corresponding to color and density sensors in positions of an image detected by the line scanner to generate heat. The erasing device controls, according to detected colors or density, a quantity of heat to be generated.Type: ApplicationFiled: September 10, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventor: Hiroyuki TAGUCHI
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Publication number: 20130002782Abstract: According to one embodiment, an erasing apparatus for a sheet includes a conveying path configured to convey a sheet on which an image is formed with a coloring agent that is erased by heating, a first erasing section including, on an upstream side of the conveying path, a first heating member provided on one surface side of the sheet and a first rotating roller provided to be opposed to the first heating member, and a second erasing section including, on a downstream side of the first erasing section, a second heating member provided on the other surface side of the sheet and a second rotating roller provided to be opposed to the second heating member.Type: ApplicationFiled: May 30, 2012Publication date: January 3, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Hiroyuki TAKI, Isao YAHATA, Ken IGUCHI, Kikuo MIZUTANI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA, Hidetoshi YOKOCHI, Toshiaki OSHIRO, Hiroyuki HAZU, Yoichi YAMAGUCHI, Hiroyuki SUGIYAMA
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Publication number: 20130002783Abstract: According to one embodiment, an erasing apparatus includes a paper feeding unit configured to feed a sheet having an image recorded, an erasing unit including a pressing roller and a heater that has a shape following the outer circumference of the pressing roller and includes a contact area with the pressing roller, the erasing unit being configured to erase the image formed on the sheet fed to a contact section of the pressing roller and the heater from the paper feeding unit, a temperature detecting unit configured to detect the temperature of the heater, a controller configured to control the heater according to the temperature detected by the temperature detecting unit, and a paper discharge unit configured to discharge the sheet on which the image is erased by the erasing unit.Type: ApplicationFiled: June 20, 2012Publication date: January 3, 2013Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Kikuo MIZUTANI, Isao YAHATA, Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Ken IGUCHI, Hiroyuki TAKI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA, Hidetoshi YOKOCHI, Toshiaki OSHIRO, Hiroyuki HAZU, Yoichi YAMAGUCHI, Hiroyuki SUGIYAMA, Yuichi SAITO, Jun ISHII
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Publication number: 20120327154Abstract: According to one embodiment, an image forming apparatus that forms an image on a medium includes an image forming material erasable by heat, a storage medium having stored therein information concerning temperature for heating the image forming material, and a controller configured to control an image forming operation on the basis of the information concerning the temperature stored in the storage medium. The information concerning the temperature includes forming temperature, which is temperature for heating the image forming material during image formation, and erasing temperature, which is temperature for heating the image forming material during image erasing.Type: ApplicationFiled: June 15, 2012Publication date: December 27, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventor: Toshifumi Mimura
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Publication number: 20120306982Abstract: According to one embodiment, a color erasing apparatus includes a color erasing section which erases a color of an image formed with an erasable color material on a sheet conveyed at first speed, a reading section which reads an image on the surface of the sheet conveyed at second speed higher than the first speed, a first conveying section, and a second conveying section. The first conveying section includes a first conveying roller arranged downstream in a sheet conveying direction of the color erasing section and conveys the sheet at the first speed. The second conveying section includes a second conveying roller arranged upstream in the sheet conveying direction of the reading section and in a position where the second conveying roller nips the conveyed sheet simultaneously with the first conveying roller. The second conveying section conveys the sheet to the reading section at the second speed.Type: ApplicationFiled: February 20, 2012Publication date: December 6, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hiroyuki TAKI, Hiroyuki Tsuchihashi, Takahiro Kawaguchi, Isao Yahata, Yoshiaki Sugizaki, Kikuo Mizutani, Ken Iguchi, Chiaki Ilzuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Publication number: 20120306984Abstract: According to an embodiment, a sheet discharging device includes: a first conveying path configured to guide a sheet to be conveyed; a second conveying path branched from the first conveying path at a branch point of the first conveying path; a sorting section configured to sort a sheet being conveyed on the first conveying path into either a downstream side of the branch point on the first conveying path or the second conveying path; a first discharge tray configured to receive a sheet discharged from the first conveying path at a first sheet loading surface; and a second discharge tray placed below the first discharge tray and configured to receive a sheet discharged from the second conveying path at a second sheet loading surface whose distance to the first sheet loading surface increases toward a downstream side thereof in a sheet discharging direction.Type: ApplicationFiled: May 31, 2012Publication date: December 6, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Isao YAHATA, Kikuo Mizutani, Takahiro Kawaguchi, Yoshiaki Sugizaki, Ken Iguchi, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoichi Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito
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Publication number: 20120306985Abstract: According to one embodiment, a first conveying path to form a conveying path from a sheet supply portion toward an ejector, a reader arranged on the first conveying path to read an image on a surface of the sheet, an erasure to erase the image on the sheet formed with image erasable material, a switching portion arranged on the first conveying path at a downstream side of the reader in a sheet conveying direction to switch the sheet conveying direction to a direction of the ejector or a direction of the erasure, and a second conveying path having the erasure which, at a position where the switching portion is arranged, branches from the first conveying path at the downstream side of the reader and merges with the first conveying path at a meeting point between the sheet supply portion and the reader.Type: ApplicationFiled: June 1, 2012Publication date: December 6, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ken IGUCHI, Hidetoshi Yokochi, Isao Yahata, Takahiro Kawaguchi, Yoshiaki Sugizaki, Kikuo Mizutani, Hiroyuki Taki, Hiroyuki Tsuchihashi, Chiaki Ilzuka
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Publication number: 20120306983Abstract: In general, according to an embodiment, an erasing section erases the image on the sheet. A first conveying path conveys the sheet fed from a sheet feeding section and is provided with a reading section and a discharge section downstream of the reading section in a sheet conveying direction. A second conveying path is branched from the first conveying path downstream of the reading section in the sheet conveying direction and upstream of the discharge section in the sheet conveying direction. The second conveying path merges with the first conveying path upstream of the reading section in the sheet conveying direction and is provided with the erasing section. A sorting member, which is located at a branch point at which the second conveying path is branched from the first conveying path. A recording section is located on the first conveying path and records count information indicative of an erase count.Type: ApplicationFiled: May 30, 2012Publication date: December 6, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Kikuo MIZUTANI, Isao YAHATA, Takahiro KAWAGUCHI, Yoshiaki SUGIZAKI, Ken IGUCHl, Hiroyuki TAKI, Hiroyuki TSUCHIHASHI, Chiaki IIZUKA, Hidetoshi YOKOCHI
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Patent number: 8319808Abstract: According to one embodiment, there is provided an image forming apparatus, including an accommodation unit, an image forming unit, an image reading unit, an image erasing unit, a first medium processing unit, and a second medium processing unit. The first medium processing unit forms the image on the recording medium carried from the accommodation unit and discharges the recording medium on which the image is formed, based on the setting of a first image process mode. The second medium processing unit forms a test image on the recording medium carried from the accommodation unit, reads the test image, erases the test image, and returns the recording medium to the accommodation unit, based on a setting of a second image process mode.Type: GrantFiled: May 20, 2011Date of Patent: November 27, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Tetsuya Sadowara, Eiichi Yamanishi, Hiroyuki Okuyama, Yoshihito Hiroe, Hiromasa Tanaka, Yasuaki Okamoto
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Patent number: 8308262Abstract: An image forming apparatus includes an image forming portion to form an image on a sheet using an erasable ink, a sheet supply tray to load the sheet on which the image was formed using the erasable ink, a mark detecting portion to detect a mark indicating that the image formed on the sheet conveyed from the sheet supply tray includes a confidential information, and an overwriting portion to overwrite so as not to make recognizable the image of at least an area including the confidential information out of the image formed on the sheet, in case that the mark is detected by the mark detecting portion.Type: GrantFiled: October 6, 2009Date of Patent: November 13, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Minoru Yoshida, Hiroshi Hashidume, Makoto Tani, Osamu Takagi, Takahisa Hirano
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Patent number: 8289353Abstract: An image erasing apparatus includes: a supply unit which supplies a recording medium; a collection unit which collects the recording medium supplied by the supply unit; plural carrying roller pairs which carry the recording medium supplied by the supply unit, toward the collection unit; a detection unit which acquires information about a metallic foreign matter adhering to the recording medium; a heating unit which heats the recording medium to a color erasing temperature of a developer or higher; and a carrying control unit which decelerates a rotation speed of the plural carrying roller pairs from a first speed to a second speed when the information about the metallic foreign matter is acquired by the detection unit.Type: GrantFiled: March 7, 2011Date of Patent: October 16, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taguchi, Isao Yahata, Ken Iguchi, Takahiro Kawaguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8284220Abstract: According to one embodiment, an image erasing apparatus decolors an image printed on a paper sheet using an ink containing at least a leuco dye, a developer, water, a water-soluble organic solvent, and a surfactant. The image erasing apparatus includes a heating unit, a feedback mechanism, and a control unit. The heating unit heats the paper sheet. The feedback mechanism supplies the paper sheet heated by the heating unit to the heating unit again. The control unit causes the feedback mechanism to supply the paper sheet to the heating unit a plurality of times so as to heat the paper sheet a plurality of times.Type: GrantFiled: March 7, 2011Date of Patent: October 9, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Satoshi Takayama, Takeshi Gotanda, Yumiko Sekiguchi, Kenji Sano
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Patent number: 8284222Abstract: An image erasing apparatus including: a semiconductor laser array in which a plurality of semiconductor laser light sources are linearly aligned; a width direction collimating unit provided on an output surface of the semiconductor laser array, and configured to collimate, in a width direction, broadening of laser beams emitted from the semiconductor laser array so as to form a linear beam; and a length direction light distribution controlling unit configured to control a length of a major axis of the linear beam to be longer than a length of a major axis of an emission part of the semiconductor laser array, and to attain uniform light distribution in the length direction of the linear beam; wherein the linear beam, which has the major axis whose length is longer than the length of the major axis of the emission part of the semiconductor laser array and uniform light distribution in the length direction thereof, is to be applied to and heat a thermoreversible recording medium, in which any of transparency andType: GrantFiled: October 14, 2010Date of Patent: October 9, 2012Assignee: Ricoh Company, Ltd.Inventors: Tomomi Ishimi, Shinya Kawahara, Toshiaki Asai, Yoshihiko Hotta
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Patent number: 8284221Abstract: An erasing device includes a line scanner on an upstream side in a recording medium conveying direction, includes a thermal head downstream in the recording medium conveying direction of the line scanner, and includes a platen in a position opposed to the thermal head as a heating device across a recording medium conveying path. The erasing device causes the heat generating elements of the thermal head in positions corresponding to color and density sensors in positions of an image detected by the line scanner to generate heat. The erasing device controls, according to detected colors or density, a quantity of heat to be generated.Type: GrantFiled: May 5, 2010Date of Patent: October 9, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Hiroyuki Taguchi
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Publication number: 20120212556Abstract: In a rewritable printer of one embodiment which reprints information on a rewritable paper with a thermal print system after erasing by heat information printed on the rewritable paper and discharges it to the outside of the printer through a paper issue port, the printer includes an auxiliary guide having a smooth surface, provided at the paper issue port, to guide the rewritable paper, on which information is reprinted, discharged to the outside.Type: ApplicationFiled: November 10, 2011Publication date: August 23, 2012Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Hiroyasu Ishii, Motohito Tsuchiya
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Patent number: 8237758Abstract: An image erasing apparatus includes: a scanner which detects a side of a sheet on which an image is formed using a thermally decolorable coloring agent; a heat roller which provides heat for the sheet having the image formed thereon; and a controller which causes a quantity of heat provided for the sheet from the heat roller when an image forming side detected by the scanner does not face the heat roller to be greater than a quantity of heat provided for the sheet from the heat roller when the image forming side faces the heat roller.Type: GrantFiled: February 5, 2010Date of Patent: August 7, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Hiroyuki Taguchi, Ken Iguchi, Minoru Yoshida, Osamu Takagi, Takahito Kabai, Yoshiaki Kaneko
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Patent number: 8231935Abstract: Thermal transfer printing method and apparatus are provided to make initial character image data left on a spent ink ribbon illegible. In the method, after forming an initial character image FGi1 on an ink layer 11b in black of the ink ribbon 11, a forefront position S1 of the ink layer 11b is aligned with a forefront position S2 of an intermediate transfer film 25. Then, overwrite character image data UGD1 is applied on a thermal head 19 to produce a first superimpose character image KG1i1 on the ribbon 11 and a first superimpose character image KG1m1 on the film 25. After that, the forefront position S1 of the ink layer 11b is shifted from the forefront position S2 of the film 25 by a predetermined distance and further, the overwrite character image data UGD1 is applied on the thermal head 19 to produce a second superimpose character image KG2i1 on the ribbon 11 and a second superimpose character image KG2m1 on the film 25.Type: GrantFiled: December 20, 2007Date of Patent: July 31, 2012Assignee: JVC Kenwood CorporationInventors: Keiji Ihara, Seiichi Tanabe, Toshinori Takahashi, Yoshitaka Suzuki, Osamu Goto
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Publication number: 20120188324Abstract: According to one embodiment, a sheet conveying apparatus includes: a guide section that forms a one side guide surface of a sheet conveying path, the guide section having a first guide member and a second guide member which are continuously arranged from a conveying direction upstream side to a conveying direction downstream side, at least one of the first guide member and the second guide member being a guide member that rotates to open and close; and a joint section that forms an uneven joint with a conveying direction downstream side end of the first guide member and a conveying direction upstream side end of the second guide member, the downstream side end of the first guide member being arranged further on an inner side than the upstream side end of the second guide member with respect to the sheet conveying path if at least one of the first guide member and the second guide member is closed.Type: ApplicationFiled: November 11, 2011Publication date: July 26, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Toshiaki Oshiro, Tetsuhiro Morita, Hiroyuki Hazu, Hitoshi Adachi, Ken Iguchi, Takahiro Kawaguchi
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Publication number: 20120162340Abstract: Disclosed is an image forming apparatus including a laser unit that has a function to emit a laser light to heat a thermal rewritable recording medium to write a drawing on the thermal rewritable recording medium and to erase a drawing written on the thermal rewritable recording medium by heating the thermal rewritable recording medium; and an erasing data generating unit that generates erasing data indicative of a position of an erasing area corresponding to a part of the thermal rewritable recording medium, the laser unit erasing the drawing written on the erasing area of the thermal rewritable recording medium based on the erasing data generated by the erasing data generating unit.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Inventors: Takahiro FURUKAWA, Daisuke Tezuka
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Patent number: 8203583Abstract: A system for imaging erasable media includes a thermal print head on a first side of an erasable medium and a UV illumination source opposing the thermal print head and on a second side of the erasable medium. The thermal print head locally heats the erasable medium at a pixel level and the UV illumination source images the erasable medium only at the locally heated regions thereof. Thus the normal roles of uniformly heating the media and imaging with the UV source are reversed.Type: GrantFiled: December 17, 2009Date of Patent: June 19, 2012Assignee: Xerox CorporationInventor: Michael John Wilsher
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Publication number: 20120148327Abstract: According to one embodiment, a erasing apparatus includes: a paper feeding section configured to feed a recording medium on which a erasable image is recorded to a conveying path; a conveying section configured to convey the recording medium along the conveying path; a erasing section configured to erase a color of the image on the recording medium; a sensor configured to detect the recording medium conveyed through the erasing section by the conveying section; and a control section configured to perform, if the sensor detects occurrence of a jam of the recording medium, control to convey the recording medium present in the conveying path.Type: ApplicationFiled: December 2, 2011Publication date: June 14, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Hiroyuki Taki, Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Yoshiaki Sugizaki, Kikuo Mizutani, Chiaki Iizuka, Hidetoshi Yokochi, Toshiaki Oshiro, Hiroyuki Hazu, Yoici Yamaguchi, Hiroyuki Sugiyama, Yuichi Saito, Jun Ishii
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Patent number: 8194290Abstract: An image compensating method. First, multiple scanning lines are used to scan a document and a longitudinal black and white pattern, in order to produce the actual gray level value for multiple pixels with respect to each of the scanning lines and the document, as well as a correctional gray level value for complete black and a correctional gray level value for complete white with respect to the longitudinal black and white pattern. Then, the compensational gray level value with respect to the actual gray level value for each of the pixels is obtained according to the correctional gray level value for complete black, the correctional gray level value for complete white, the theoretical gray level value for complete black, the theoretical gray level value for complete white, and the actual gray level value for each of the pixels. Then, the procedure is complete.Type: GrantFiled: September 15, 2003Date of Patent: June 5, 2012Assignee: Transpacific Systems, LLCInventor: Shih-Zheng Kuo
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Publication number: 20120056962Abstract: According to one embodiment, an image erasing apparatus decolors an image printed on a paper sheet using an ink containing at least a leuco dye, a developer, water, a water-soluble organic solvent, and a surfactant. The image erasing apparatus includes a heating unit, a feedback mechanism, and a control unit. The heating unit heats the paper sheet. The feedback mechanism supplies the paper sheet heated by the heating unit to the heating unit again. The control unit causes the feedback mechanism to supply the paper sheet to the heating unit a plurality of times so as to heat the paper sheet a plurality of times.Type: ApplicationFiled: March 7, 2011Publication date: March 8, 2012Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Satoshi Takayama, Takeshi Gotanda, Yumiko Sekiguchi, Kenji Sano
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Publication number: 20120038733Abstract: A decoloring apparatus includes a conveyance path, a paper feeding part, a reading part, a communication part, a decoloring part and a control part. The conveyance path conveys a sheet to respective parts in the apparatus. The paper feeding part feeds a sheet on which an image is formed by a decolorable colorant to the conveyance path from a sheet stack part. The reading part is provided downstream of the paper feeding part in the conveyance path and reads the image of the sheet. The communication part transmits read image data of a preceding sheet to a management apparatus communicably connected to the decoloring apparatus and receives a determination result of a conveyance destination of the preceding sheet obtained by the management apparatus based on the image data. The decoloring part is provided downstream of the reading part in the conveyance path and erases the image of the sheet.Type: ApplicationFiled: August 8, 2011Publication date: February 16, 2012Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Publication number: 20120038732Abstract: There is provided a decoloring apparatus including: an image reading unit; a decoloring processing unit; a transmission unit which transmits image data read by the image reading unit to a predetermined management apparatus; a receiving unit which receives a result of determination processing performed on the side of the management apparatus for the sheet from which the image data was read, based on the image data transmitted by the transmission unit; and a transport control unit which controls sheet transport time intervals for secondly or later transported sheets based on a time period from transmission of the image data of a firstly transported sheet by the transmission unit until receiving of the determination result for the firstly transported sheet by the receiving unit if the image reading unit is caused to sequentially read images on three or more sheets.Type: ApplicationFiled: August 4, 2011Publication date: February 16, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Ken Iguchi, Isao Yahata, Takahiro Kawaguchi, Hiroyuki Taguchi, Hiroyuki Tsuchihashi, Hiroyuki Taki
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Patent number: 8098266Abstract: An image processing method which contains: delivering laser light to a thermoreversible recording medium to heat the medium and record an image thereon, the medium reversibly changing a transparency or tone thereof depending on a temperature thereof; and heating the medium to erase the image recorded thereon, wherein the delivering is carried out using an image processing device containing: a laser light emitting unit; a light scanning unit disposed on a plane onto which laser light emitted from the laser light emitting unit is delivered; a light intensity distribution adjusting unit to change a light intensity distribution of the laser light; and a f? lens to condense the laser light, and wherein energy of the laser light passing through a peripheric portion of the f? lens and traveling onto the medium is lower than energy of the laser light passing through a center portion of the f? lens and traveling onto the medium.Type: GrantFiled: August 26, 2009Date of Patent: January 17, 2012Assignee: Ricoh Company, Ltd.Inventors: Toshiaki Asai, Tomomi Ishimi, Shinya Kawahara, Yoshihiko Hotta
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Publication number: 20110292153Abstract: According to one embodiment, there is provided an image forming apparatus, including an accommodation unit, an image forming unit, an image reading unit, an image erasing unit, a first medium processing unit, and a second medium processing unit. The first medium processing unit forms the image on the recording medium carried from the accommodation unit and discharges the recording medium on which the image is formed, based on the setting of a first image process mode. The second medium processing unit forms a test image on the recording medium carried from the accommodation unit, reads the test image, erases the test image, and returns the recording medium to the accommodation unit, based on a setting of a second image process mode.Type: ApplicationFiled: May 20, 2011Publication date: December 1, 2011Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventors: Tetsuya Sadowara, Eiichi Yamanishi, Hiroyuki Okuyama, Yoshihito Hiroe, Hiromasa Tanaka, Yasuaki Okamoto