Fixing Unit Patents (Class 399/122)
  • Patent number: 10795288
    Abstract: An image forming apparatus includes an image holding body, a transfer member, and a controller. The image holding body holds an image formed of toner. The transfer member is brought into contact with a continuous medium so as to transfer the image held by the image holding body to the continuous medium, and the transfer member is able to be brought into contact with and separated from the image holding body. The controller causes the transfer member to be separated from the image holding body, and after that, causes the image holding body to move so as to detect an inspection image formed on the image holding body, thereby adjusting, as image quality adjustment, a deviation of a position of the image or a deviation of density of the image to be formed.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 6, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masafumi Okabe, Kanji Watanabe
  • Patent number: 10795293
    Abstract: A fixing device includes a fixing rotator, a heat source, a pressing member, a nip formation member, a reflector, and a support. The heat source is configured to heat the fixing rotator. The pressing member is configured to form a nip with the fixing rotator. The nip formation member is disposed inside a loop of the fixing rotator and opposed to the pressing member to form the nip between the fixing rotator and the pressing member. The reflector is configured to reflect heat from the heat source. The support is configured to secure the reflector. The support is in contact with the reflector at at least one end portion in a longitudinal direction of the support.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: October 6, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohichi Utsunomiya, Yutaka Ikebuchi
  • Patent number: 10764457
    Abstract: A second unit configured to be opened or closed with respect to a first unit includes a background plate configured to be switched between a facing state in which the background plate faces a image sensor and a non-facing state in which the facing state of the background plate and the image sensor is released and a power receiving section configured to receive power from a motor to switch the state of the background plate. The first unit includes an intermediate cam configured to be rotated by the power from a motor and a cam member configured to receive the power of the motor via the intermediate cam, the cam member having a receiving section of a size the power receiving section is received regardless of a position of the power receiving section when the intermediate cam is in the neutral position.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: September 1, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Naoki Sakamoto
  • Patent number: 10739708
    Abstract: There is provided a guide incorporated in a fixing device including a belt configured to circularly move in a moving direction. The guide includes: a guide portion elongated in a longitudinal direction orthogonal to the moving direction; a first gate mark; and a second gate mark arranged spaced apart from the first gate mark in the longitudinal direction. The guide portion includes a resin and a plurality of elongated-shaped fillers dispersed in the resin. The guide portion has a guide surface configured to guide movement of the belt in the moving direction, a peripheral surface of the belt being configured to contact the guide surface.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 11, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kaoru Suzuki
  • Patent number: 10712694
    Abstract: A temperature measuring device for measuring temperatures of a plurality of heating elements, includes a temperature measuring element positioned to receive infrared rays emitted from each of the heating elements and to output a signal corresponding to an intensity of the light reception, and a light guiding unit including a plurality of light guides, one for each of the heating elements, each light guide being configured to guide the infrared ray emitted from a respective one of the heating elements to the temperature measuring element.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: July 14, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masao Ando
  • Patent number: 10678186
    Abstract: An image forming apparatus includes a replacement unit (developing unit) that is provided to be freely inserted into and extracted from an apparatus body, and the replacement unit is provided with a separation duct wall that constitutes a collection path through which powder scattering in the apparatus body is collected.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: June 9, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Noriaki Taguchi, Shinichi Takeda, Hiroki Kanemitsu, Yuji Sawa
  • Patent number: 10663894
    Abstract: A fixing device includes a fixing belt and a pressure rotator that presses against a nip formation pad via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt. A first holder holds a first lateral end of the fixing belt in an axial direction thereof. A second holder holds a second lateral end of the fixing belt in the axial direction thereof. The second holder, together with the first holder, defines a holder interval provided between the first holder and the second holder in the axial direction of the fixing belt. A lubricant supplying sheet impregnated with a lubricant is sandwiched between the nip formation pad and the fixing belt at the fixing nip. The lubricant supplying sheet has a sheet span in the axial direction of the fixing belt. The sheet span is within the holder interval.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: May 26, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Jun Okamoto, Yoshio Hattori, Haruyuki Honda, Takumi Waida, Kiwako Hiroi, Yuusuke Furuichi, Tomoya Adachi
  • Patent number: 10627752
    Abstract: A thermal transfer apparatus is disclosed. The thermal transfer apparatus has a heating roller movable between a film contact position and a retracted position. The thermal transfer apparatus also includes a nip roller positioned opposed to the heating roller when the heating roller is in the film contact position. The heating roller is moved from the film contact position to the retracted position in response to opening of the cover and is not moved from the retracted position to the film contact position during closing of the cover.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: April 21, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Ryosuke Sakai
  • Patent number: 10599079
    Abstract: In accordance with an embodiment, an image forming apparatus encompasses a heat roller, a lamp, a use amount acquisition section, a switching controller and a cycle controller. The heat roller heats a sheet printed with a toner image. The lamp heats the heat roller. The use amount acquisition section acquires a use amount of the lamp. The switching controller repeats a processing from a moment at which the lamp is charged until the lamp is charged next after the lamp is not charged in a predetermined control cycle. The cycle controller sets the cycle based on the use amount.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: March 24, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Ken Iguchi
  • Patent number: 10599093
    Abstract: An image formation apparatus according to an embodiment may include: an apparatus housing including a stacker formed on a periphery of the apparatus housing, wherein the stacker includes an opening; an image formation part provided in the apparatus housing and configured to form an image on a medium; and a fixation unit detachably attached in the apparatus housing and configured to fix the image formed by the image formation part on the medium, wherein in a state where the fixation unit is attached in the apparatus housing, a part of the fixation unit is exposed through the opening of the stacker to constitute a part of the stacker such that the opening of the stacker allows the fixation unit to be taken out from the apparatus housing therethrough.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: March 24, 2020
    Assignee: Oki Data Corporation
    Inventors: Tetsuya Uehashi, Yuu Oikawa
  • Patent number: 10551779
    Abstract: A fixing device includes a heating member, a pressing member, a pressing mechanism and a locking mechanism. The heating member is rotatable. The pressing roller is configured to come into contact with the heating member. The pressing mechanism is configured to convert a rotational force transmitted from a drive source to a pressing force of pressing the pressing roller against the heating member and to form a pressing region between the pressing roller and the heating member. A sheet is conveyed through the pressing region. The locking mechanism is configured to be engaged with an image forming apparatus main body linked with a pressing operation of applying the pressing force to the pressing roller and to be disengaged from the image forming apparatus main body linked with completion of a pressing release operation of removing the pressing force.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: February 4, 2020
    Assignee: KYOCERA Documents Solutions Inc.
    Inventor: Yuya Shimohora
  • Patent number: 10545452
    Abstract: An image forming device includes a development unit that forms a toner image, a fixation unit that includes a handle including a grip part and fixes the toner image transferred to a record medium on the record medium and a heat insulation duct that is situated between the development unit and the fixation unit and inhibits transmission of heat of the fixation unit to the development unit. The handle is provided to be able to shift between an operational position for being gripped by an operator and an operating position at which the handle is in contact with the heat insulation duct.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: January 28, 2020
    Assignee: Oki Data Corporation
    Inventors: Takashi Kobayashi, Yuta Kobayashi
  • Patent number: 10496026
    Abstract: A drive transmission device includes a first gear, a cam configured to rotate in interrelation with rotation of the first gear and capable of changing a state of two members between a pressed state and a pressure-released state, a pressing member configured to press the cam, and a second gear configured to transmit drive to the first gear in engagement with the first gear. At least one of the first and second gears includes first teeth provided at positions corresponding to an engaging region in which the first gear is engaged with the second gear when the state of the two members is changed from the pressure-released state to the pressed state and includes second teeth provided at positions corresponding to a region other than the engaging region. Tooth thicknesses of the first teeth are thicker than tooth thicknesses of the second teeth.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: December 3, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Murasaki, Motoyasu Muramatsu, Tsuyoshi Nagasaki
  • Patent number: 10466630
    Abstract: A temperature measuring device for measuring temperatures of a plurality of heating elements, includes a temperature measuring element positioned to receive infrared rays emitted from each of the heating elements and to output a signal corresponding to an intensity of the light reception, and a light guiding unit including a plurality of light guides, one for each of the heating elements, each light guide being configured to guide the infrared ray emitted from a respective one of the heating elements to the temperature measuring element.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 5, 2019
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masao Ando
  • Patent number: 10386760
    Abstract: A fixing unit includes a fixing portion including a rotatable heating member and a rotatable pressing member, a feeding portion including a first rotatable member and a second rotatable member, a main assembly, an openable member rotatably provided to the main assembly through a shaft and a bearing portion, an urging member, an engaging portion, and a portion to be engaged. The openable member has a rotation center provided at a position at which a direction of moment acting on the openable member by an urging force of the urging member is the same as a direction in which the openable member opens. The bearing portion includes an elongated hole having a long axis extending along an urging direction of the urging member.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keita Nakajima, Fumiki Inui, Kazushi Nishikata, Koichi Yamada
  • Patent number: 10379468
    Abstract: A heating unit includes a first rotatable member that generates heat; a second rotatable member that forms, in combination with the first rotatable member, a nip area through which sheets of different sizes pass one by one; a housing that supports the first and second rotatable members such that the first and second rotatable members are rotatable; an electronic component that is fixed to the housing and includes a portion that overlaps a smallest one of the sheets passing through the nip area in terms of a position in a long-side direction of the nip area; and an other member that is provided between the first rotatable member and the electronic component.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: August 13, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Narumi Nozawa, Kazuaki Ilkura
  • Patent number: 10379483
    Abstract: In a rotating device, a pair of cuts are formed in an end portion of a metal-made cylindrical body to which a pressure is applied, at positions that face in a diameter direction. A support portion of a synthetic-resin-made bush rotatably supports the cylindrical body. In a state where a center of the cylindrical body matches a rotation center line of the bush, and a first diameter direction connecting respective centers in a circumferential direction of the cuts matches a second diameter direction connecting centers in the circumferential direction of a pair of engaging portions, each interval in the circumferential direction between the engaging portions and edge portions of the cuts is equal to or larger than an interval in a direction perpendicular to the rotation center line between an outer circumferential surface of the support portion and an inner circumferential surface of the end portion.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: August 13, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Shinji Nemoto, Tomohiko Yamakawa
  • Patent number: 10379471
    Abstract: An image heating apparatus includes a pressure removal mechanism including a camshaft, first and second cam portions being capable of placing a pressing mechanism at a first position, in which first and second rotatable members form the nip, and a second position, in which the pressing mechanism is moved against an urging force provided by a pressing spring at the first position, a first bearing portion, a second bearing portion, a first supporting portion supporting the first bearing portion, a second supporting portion supporting the first bearing portion, a driving mechanism configured to rotate the camshaft, and a regulating portion configured to regulate flexure of the camshaft by contacting the camshaft at a position between the first bearing portion and the second bearing portion with respect to the longitudinal direction of the camshaft, when the pressing mechanism is in the second position.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 13, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Takematsu, Shutaro Saito
  • Patent number: 10324402
    Abstract: A belt type fixing apparatus includes a fixing belt, a fixing roller disposed to face the fixing belt, a nip forming member that is disposed inside the fixing belt and presses the fixing belt to the fixing roller to form a fixing nip, first and second regulating surfaces that are provided at opposite ends of the nip forming member and restrict an axial movement of the fixing belt, and first and second guide surfaces that are provided inside the fixing belt and guide rotation of the fixing belt. The first regulating surface and the second regulating surface include at least one regulating step portion which is not in contact with one end of the fixing belt, respectively. The first guide surface and the second guide surface include at least one guide step portion which is not in contact with an inner surface of the fixing belt, and the at least one regulating step portion and the guide step portion are formed to be staggered from each other.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 18, 2019
    Assignee: HP PRINTING KOREA CO., LTD.
    Inventor: Seung-jun Lee
  • Patent number: 10317829
    Abstract: An image forming apparatus includes a rotary member which transports a recording material; a first detecting unit which is provided upstream of the rotary member in a transport direction of the recording material and detects the recording material; a second detecting unit which is provided downstream of the rotary member in the transport direction of the recording material and detects the recording material; a driving unit which drives the rotary member; a control unit which controls the driving unit to rotate and stop the rotary member; and stopping units which operate independently of the control unit and forcibly stop the driving unit based on detection results of the first detecting unit and the second detecting unit.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: June 11, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoritsugu Maeda
  • Patent number: 10310421
    Abstract: A fuser assembly includes a heated member and backup member forming a fusing nip. A nip loading spring biases into contact the backup member and the heated member. A bellcrank contacts the nip loading spring such that upon opening of an access door of the imaging device, the bellcrank acts on the nip loading spring to reduce a force between the backup member and the heated member but keeping in contact the backup member and the heated member. The bellcrank typifies a wire or other flexible lever. A cam pivots as the access door opens and engages the wire to compress the nip loading spring during use.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: June 4, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventor: Jeffery James Buchanan
  • Patent number: 10308458
    Abstract: Disclosed is an image forming apparatus which includes: a feeding portion configured to feed a sheet; an image forming portion configured to form an image on the sheet; a conveying portion configured to stop the sheet fed by the feeding portion at a predetermined position and to convey the sheet to the image forming portion in accordance with a timing of forming the image by the image forming portion; a type discriminating portion configured to discriminate whether a type of the sheet to be fed belongs to a first sheet type group including plain paper or to a second sheet type group including coated paper; and a controlling portion configured to control feeding of the sheet, wherein the controlling portion is configured to change a sheet feeding start timing of the feeding portion in accordance with the type discriminated by the type discriminating portion.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: June 4, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keita Takahashi, Shinnosuke Iwadate, Teruhito Kai, Hiroto Nishihara, Hiromi Shimura
  • Patent number: 10274879
    Abstract: An image forming apparatus includes an image forming portion configured to form a toner image on a recording material; an endless belt and a roller which are configured to form a nip therebetween for fixing, on the recording material, the toner image formed by the image forming portion; a pad configured to urge the endless belt from an inside of the endless belt toward the roller; a motor configured to drive the roller; an acquiring portion configured to acquire a starting torque when rotation of the roller is started; and a discriminating portion configured to discriminate a lifetime of the endless belt depending on the starting torque acquired by the acquiring portion.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keita Ishiguro
  • Patent number: 10261466
    Abstract: An assembly removable structure includes an assembly including a connectable member and attached to and removed from a receiving member of an apparatus body in a first direction, a connection member disposed on the apparatus body to be movable forward and backward in a cross direction that crosses the first direction, a switch member operated independently of a lid member and switching the connection member between a first position and a second position, the lid member rendering the receiving member open and closed, a restricting member that moves with an operation from a restriction position, at which the restricting member restricts the assembly from being removed from the receiving member, to a release position, at which the restricting member releases the assembly, and a blocking device restricting an operation of moving the restricting member to the release position when the switch member is switched to the first position.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: April 16, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shogo Kamiya, Masakatsu Eda
  • Patent number: 10254688
    Abstract: An image forming apparatus includes an apparatus main body and a fixing device. The apparatus main body is formed such that its interior can be opened. The fixing device is provided in the interior of the apparatus main body and configured to fix a toner image on a medium to the medium by heating and pressing the toner image. The fixing device is supported by the apparatus main body in such a way as to pivot so as to be disposed on an outside of the apparatus main body in a state where the interior of the apparatus main body is opened.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 9, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Takeshi Ishii
  • Patent number: 10216141
    Abstract: An imaging device having a fuser and print engine architecture that enables complete interchangeability between fuser types with a common print engine. The imaging device has a frame configured to separately receive a first fuser assembly of a first fuser type and a second fuser assembly of a second fuser type different from the first fuser type. The first fuser assembly includes a first fuser frame having a first datum tab. The second fuser assembly includes a second fuser frame having a second datum tab. The frame of the imaging device has a datum aperture that is sized to receive the first datum tab that when inserted into the datum aperture, causes the first fuser assembly to be positioned at a first operative position, and the second datum tab that when inserted into the datum aperture, causes the second fuser assembly to be positioned at a second operative position.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 26, 2019
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Karen Elaine Ballman, Patrick Wayne Carr, Jr., Gregory Daniel Creteau, Clark Edward Jarnagin, Donald Eugene Proffitt, Edward Alan Rush, Edward Lynn Triplett
  • Patent number: 10175640
    Abstract: An assembly removable structure includes an assembly that includes a connectable member and that is attached to and removed from a receiving member of an apparatus body in a first direction, a connection member disposed on the apparatus body to be movable forward and backward in a cross direction that crosses the first direction, the connection member being connected to the connectable member while being in a projecting state, a switch member operated independently of a lid member and capable of switching the connection member between a first position, in which the connection member is connected to the connectable member, and a second position, in which the connection member is removed from the connectable member, the lid member rendering the receiving member open and closed, and a holding device that holds the switch member in the second position when the assembly is removed from the receiving member.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: January 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shogo Kamiya, Masakatsu Eda
  • Patent number: 10168662
    Abstract: An assembly removable structure includes an assembly including a connectable member and attached to and removed from a receiving member of an apparatus body in a first direction, a connection member disposed on the apparatus body to be movable forward and backward in a cross direction that crosses the first direction, the connection member being connected to the connectable member while being in a projecting state, a switch member operated independently of a lid member and capable of switching the connection member between a first position, in which the connection member is connected to the connectable member, and a second position, in which the connection member is removed from the connectable member, and a restricting device that restricts removal of the assembly attached to the receiving member, the restricting device switching the switch member from the second position to the first position with an operation of the restriction.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: January 1, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Shogo Kamiya
  • Patent number: 10095167
    Abstract: An image forming apparatus include a transport unit, a tension adjusting unit, a transfer unit, a fixing unit, and a controller. The transport unit transports continuous paper. The tension adjusting unit adjusts tension of the continuous paper being transported by the transport unit. The transfer unit transfers an image to the continuous paper transported by the transport unit. The fixing unit fixes the image transferred by the transfer unit onto the continuous paper. The controller controls, in a case where the fixing unit is driven in a state in which the fixing unit is separated from the continuous paper and a difference between a transport speed of the transport unit and a fixing speed of the fixing unit has reached a predetermined range, the fixing unit to be in press-contact with the continuous paper.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: October 9, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Susumu Kibayashi
  • Patent number: 10061240
    Abstract: A fusing unit and an image forming apparatus includes a housing, a fusing belt disposed inside the housing and a pressing roller forming a nip with the fusing belt, and a receiving portion disposed to face the fusing belt at a position spaced downwardly apart from the fusing belt in a gravity direction.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: August 28, 2018
    Assignee: S-PRINTING SOLUTION CO., LTD.
    Inventors: Dong-kyun Kim, Seong-yul Kim
  • Patent number: 10061265
    Abstract: An image forming apparatus includes a fixing unit and an apparatus main body. The fixing unit fixes a toner image on a recording medium. To the apparatus main body, the fixing unit is attached. The apparatus main body includes a holding part which has an opening and an elastically deformable contact part. The opening is arranged at an attachment position of the fixing unit. The contact part protrudes from an edge of the opening to an attachment direction of the fixing unit and is bent so as to narrow the opening. The fixing unit includes a held part protruding at a position corresponding to the holding part, and the held part enters the opening while pressing the contact part so that the held part fits into the opening.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 28, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Tomohiro Watatani
  • Patent number: 10036987
    Abstract: A fixing device is removably installed inside an apparatus body including an apparatus guide. The fixing device includes a convex guide guided along the apparatus guide and a heater to heat a recording medium to fix a toner image on the recording medium. The heater includes a lateral end in a longitudinal direction of the heater. The lateral end is disposed inside the convex guide.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 31, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigeo Nanno, Toshio Ogiso, Masahiro Samei, Tamotsu Ikeda
  • Patent number: 9989918
    Abstract: An image forming apparatus includes a duct discharging a heat in a vicinity of a heating unit to an outer side of the image forming apparatus, a stay, and a toner cartridge storing a toner being supplied to a developing unit. The stay is arranged to be positioned between the duct and the toner cartridge in the vertical direction.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: June 5, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masahiko Fujii
  • Patent number: 9989898
    Abstract: A polishing unit is attached to an opening/closing cover included in a fixing device so as to polish a fixing belt. The polishing unit includes: a polishing unit body support member that is detachably attached to the opening/closing cover; and a polishing section that is held by the polishing unit body support member and that makes contact with the fixing belt so as to polish the fixing belt when the opening/closing cover is closed.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: June 5, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Motoki Ohta, Kota Yoshikawa
  • Patent number: 9975352
    Abstract: An image forming device includes: a transporting route on which a recording medium is transported; an image forming unit that is provided on the transporting route and forms an image by discharging liquid droplets containing macromolecular particles on a front surface of the transported recording medium; a heating unit that heats the image formed on the front surface of the recording medium to a temperature higher than a glass transition point of the macromolecular particles; and a cooling unit that, before the image heated by the heating unit comes into contact with a member on the transporting route, cools the image formed on the front surface of the recording medium to a temperature equal to or lower than the glass transition point of the macromolecular particles in a non-contact state with the image.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: May 22, 2018
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Chikara Manabe, Hiroyuki Ueki
  • Patent number: 9964906
    Abstract: A fixing device includes a pressuring member, a fixing frame, a pressuring frame, a pressure changing part, a rotation detecting part and a rotation transmitting part. The pressuring member forms a fixing nip with a fixing member. The fixing frame supports the fixing member. The pressuring frame supports the pressuring member. The pressure changing part changes fixing nip pressure. The rotation transmitting part transmits rotation of the pressuring member to the rotation detecting part. The fixing frame is turnably supported around a fulcrum part provided on the pressuring frame. The pressure changing part turns the fixing frame around the fulcrum part. The rotation transmitting part has a first rotating body and a second rotating body. The first rotating body is provided on a rotation shaft of the pressuring member. The second rotating body is engaged with the first rotating body and rotatably supported around the fulcrum part.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: May 8, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yuhiro Sakai
  • Patent number: 9939777
    Abstract: An attachment structure for an attachable body includes an attachable body, a connecting unit, a first regulating device, and a second regulating device. The attachable body is attachable to an apparatus body and has a leading end and a trailing end in an attachment direction in which the attachable body is attached to the apparatus body. The connecting unit is provided on a leading end side of the attachable body in the attachment direction. The connecting unit is connected to the apparatus body. The first regulating device regulates a movement of the attachable body in the attachment direction from a trailing end side. The second regulating device is provided at a position closer to the connecting unit than to the first regulating device in a perpendicular direction perpendicular to the attachment direction. The second regulating device regulates the movement of the attachable body.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: April 10, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shogo Kamiya, Kenji Kanai, Yasunori Fujimoto, Masakatsu Eda
  • Patent number: 9904239
    Abstract: An imaging device having a fuser and print engine architecture that enables complete interchangeability between fuser types with a common print engine. The imaging device has a frame configured to separately receive a first fuser assembly of a first fuser type and a second fuser assembly of a second fuser type different from the first fuser type. The first fuser assembly includes a first fuser frame having a first datum tab. The second fuser assembly includes a second fuser frame having a second datum tab. The frame of the imaging device has a datum aperture that is sized to receive the first datum tab that when inserted into the datum aperture, causes the first fuser assembly to be positioned at a first operative position, and the second datum tab that when inserted into the datum aperture, causes the second fuser assembly to be positioned at a second operative position.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: February 27, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Karen Elaine Ballman, Patrick Wayne Carr, Jr., Gregory Daniel Creteau, Clark Edward Jarnagin, Donald Eugene Proffitt, Edward Alan Rush, Edward Lynn Triplett
  • Patent number: 9897954
    Abstract: A base for a fixing belt comprising at least: a nickel layer; and a copper layer, both laminated each other, wherein an orientation ratio I(200)/I(111) calculated based on a ratio between a peak strength of (200) crystal face and a peak strength of (111) crystal face by X-ray diffraction analysis of the copper layer is 0.1 or less. The base for the fixing belt further includes a protective layer, disposed on a surface of the copper layer opposite a surface on which the nickel layer is laminated, and the protective layer is formed of nickel.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: February 20, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Endo, Shigeru Fujita, Yuzuru Kudoh, Yasuhide Fujiwara
  • Patent number: 9897949
    Abstract: An image formation apparatus includes: an image formation device which forms a developer image on a medium; a storage device which stores medium information concerning the medium; a fixation device which fixes the developer image to the medium by heating the developer image while causing the medium to travel; a first detector which detects a stop or a speed reduction of travel of the medium in the fixation device; a second detector which detects a temperature of the fixation device; a cooler; and a controller which, when the first detector detects the stop or the speed reduction of the travel of the medium, stops an operation of the fixation device, and operates the cooler based on the medium information and the temperature of the fixation device, thereby cooling the medium stuck in the fixation device.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 20, 2018
    Assignee: Oki Data Corporation
    Inventors: Masahiro Kawano, Teruaki Kuroda, Yoshiaki Kusakabe
  • Patent number: 9886000
    Abstract: An image forming apparatus includes a fixing device that includes a pressing unit and a heating unit provided facing the pressing unit, an image-forming-apparatus body in which the fixing device is housed and to and from which the fixing device is attachable and detachable, a fixing-device-attachment-detachment-detecting member that detects attachment or detachment of the fixing device to or from the image-forming-apparatus body, and a controller that controls, if the fixing-device-attachment-detachment-detecting member detects the detachment of the fixing device from the image-forming-apparatus body, the image-forming-apparatus body to take a position where the pressing unit and the heating unit are to be pressed against each other.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: February 6, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuhiro Kato, Hideki Sato, Jun Sawamura, Yoshiro Konishi, Masahiro Akatsuka, Takayuki Ukawa, Yusuke Sakurai
  • Patent number: 9874852
    Abstract: A fuser assembly, including a heat transfer member; a backup member disposed adjacent the heat transfer member so as to form a fuser nip; a frame in which the heat transfer member and the backup member are at least partly disposed; and a cover member pivotably coupled to the frame so as to pivot between a closed position and an open position, the cover member in the open position providing an opening for accessing and withdrawing a sheet of media disposed in the fuser assembly. A latch mechanism selectively latches the cover member to the frame and including a lever member disposed relative to an outer surface of the cover member such that movement of the lever member by a single hand of a user unlatches the cover member from the frame for moving the cover member to the open position.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 23, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Richard Gordon Boyatt, III, Alexander Johannes Geyling, Edward Lawrence Kiely
  • Patent number: 9857759
    Abstract: An imaging device includes a frame plate having an opening and first and second camming profiles about the opening. A removable fuser assembly includes a housing having front and back plates, a mounting shaft extending from the front plate to the back plate of the housing, a pin member on a first end of the mounting shaft having a pair of segments engaging with the first and second camming profiles on the frame plate, and a handle on a second end of the mounting shaft pivotable at a predetermined angle and moving the mounting shaft therewith. Pivoting the handle in a first direction causes the segments to travel along the camming profiles, locking the fuser assembly onto the imaging device. Pivoting the handle in a second direction causes the segments to align with the opening and the fuser assembly to be unlocked with the imaging device allowing removal thereof.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: January 2, 2018
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventors: Richard Gordon Boyatt, Gregory Daniel Creteau, Christopher Hayden Noffsinger, Donald Eugene Proffitt, Edward Alan Rush
  • Patent number: 9849699
    Abstract: An elastic roller includes: a roller shaft; and an elastic member. The elastic roller includes an inner layer side elastic member, and a coating layer. The inner layer side elastic member includes a base layer and an intermediate layer located from the roller shaft in this order. The base and intermediate layers have a rubber hardness of 30 to 80 degrees that is measured by a durometer type A in accordance with the standard of JIS K 6253. The rubber hardness of the base layer is more than that of the intermediate layer. The coating layer is made of a silicone resin, and has a thickness of 10 to 100 ?m. The silicone resin has a hardness of 20 degrees or less that is measured using a spring-based Asker C type in accordance with SRIS 0101 standard. The inner layer side elastic member has a plurality of internal grooves along a circumferential direction. Each of the internal grooves has a width of 25 to 1,300 ?m, and has a depth of 25 to 500 ?m.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: December 26, 2017
    Assignee: SATO HOLDINGS KABUSHIKI KAISHA
    Inventor: Haruhiko Nitta
  • Patent number: 9829841
    Abstract: A fixing device includes a first supporting member that supports one of first and a second forming members that form a nip portion by sandwiching a recording medium, a second supporting member supporting the other of the first and second forming members, a first spring pressurizing the nip portion, a cam that rotates to relatively displace the first and second supporting members in a direction in which the nip portion is released, a rotating portion disposed at a position shifted from the cam in a rotation axis direction of the cam and rotating integrally with the cam, and a second spring exerting a force on the rotating portion in a direction opposite to a rotating direction of the cam according to the rotation of the cam when a state in which the nip portion is released transitions to a state in which the nip portion is formed.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: November 28, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shigeru Watanabe, Jun Sawamura, Takayuki Ukawa
  • Patent number: 9798273
    Abstract: A fuser assembly comprising an endless fuser belt having positioned internally within a first metal roll having a heat pipe, a second metal roll having a first heating element, and a second heating element disposed between the first and the second metal rolls. The endless fuser belt is disposed proximate to a backup roll for forming a fusing nip therewith, wherein a rotation of the backup roll moves the fuser belt and rotates the first and the second metal rolls. The second metal roll is positioned upstream of the first metal roll relative to a media process direction. The first heating element has a rated heating power greater than the rated heating power of the second heating element.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 24, 2017
    Assignee: LEXMARK INTERNATIONAL, INC.
    Inventor: Fangsheng Wu
  • Patent number: 9746820
    Abstract: An image forming apparatus includes an apparatus main body and a unit. The apparatus main body includes a positioning hole extending in a first direction intersecting with a mounting direction of the unit, and a pair of first inner edges extending in the first direction. The unit includes a sheet metal member and a positioning unit formed on a distal end side of the sheet metal member in the mounting direction. The sheet metal member includes a first surface extending along the mounting direction and a second surface located on an opposite side from the first surface. The positioning unit includes a projection piece inserted into the positioning hole, and a protrusion. The protrusion is formed by deforming the sheet metal member such that the second surface of the projection piece is partially perpendicular to the mounting direction and projects to a second direction perpendicular to the first direction.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 29, 2017
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Akinori Matsuno
  • Patent number: 9709941
    Abstract: An image forming apparatus includes an image forming unit, a fixing unit, a door, an elastic member to generate a pressing force of a nip portion of the fixing unit, and a switching member to change a pressing state of the elastic member. The switching member is placed in any one of first, second, and third positions. In the first position, the pressing force is defined as a first level. The second position has a second level different from the first level. The pressing force of the third position is equal to or lower than the smaller one of the first and second levels. While the door is closed from open state, an interference member of the door does not interfere with the switching member in the first or second position but interferes with the switching member in the third position to move the switching member to the first position.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 18, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeru Kinoshita, Naoki Kataoka
  • Patent number: 9696679
    Abstract: An image forming apparatus includes a fixing device and an image forming apparatus body. The fixing device includes a pressure unit, a heating unit, a pressure adjuster that adjusts a pressure between the pressure unit and the heating unit, and a fixing-device-side connecting device. The image forming apparatus body to which the fixing device is detachably attached includes an electrical power unit, a drive device to which electrical power is supplied from the electrical power unit so as to drive the pressure adjuster, and a body-side connecting device connected to the electrical power unit. When the fixing device is detached from the image forming apparatus body, the body-side connecting device and the fixing-device-side connecting device are disconnected from each other and electrical power supply to the drive device is interrupted.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: July 4, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kenji Kanai
  • Patent number: 9696672
    Abstract: A drive transmission unit transmits driving force to a driven unit including a driven rotator coupled to the drive transmission unit via a unit coupler. The drive transmission unit includes a driving source, a drive transmission member to transmit driving force from the driving source to the driven rotator by engaging the driven rotator, and a basal plate with a turning shaft portion at one end thereof. The basal plate supports the driving source and the drive transmission member thereon. The drive transmission unit is turned around the turning shaft portion together with the driven unit in a direction substantially orthogonal to a direction of a driving reaction force applied to the drive transmission member when the driven rotator receives the driving force from the drive transmission member.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: July 4, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroshi Ono, Tetsuo Tokuda, Yoshikuni Sasaki, Hironori Yamaoka, Ryohhei Sugiyama, Yamano Motoyoshi