Patents by Inventor Sueaki Okamoto

Sueaki Okamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10990055
    Abstract: An image forming apparatus includes an image carrier, a transfer member, a registration roller pair, and a conveyance guide which includes a first conveyance guide and a second conveyance guide. The second conveyance guide has a main body portion and a shaft member. The shaft member is held by a shaft holding portion of the main body portion so as to be reciprocatable between a first position which is a most downstream-side position and a second position on an upstream side of the first position. When a first recording medium is conveyed, the shaft member is arranged at the first position such that a distance between the shaft member and the first conveyance guide is a predetermined distance. When a second recording medium is conveyed, the shaft member is arranged at the second position such that the distance between the shaft member and the first conveyance guide is increased.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: April 27, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Sueaki Okamoto
  • Publication number: 20210003957
    Abstract: An image forming apparatus includes an image carrier, a transfer member, a registration roller pair, and a conveyance guide which includes a first conveyance guide and a second conveyance guide. The second conveyance guide has a main body portion and a shaft member. The shaft member is held by a shaft holding portion of the main body portion so as to be reciprocatable between a first position which is a most downstream-side position and a second position on an upstream side of the first position. When a first recording medium is conveyed, the shaft member is arranged at the first position such that a distance between the shaft member and the first conveyance guide is a predetermined distance. When a second recording medium is conveyed, the shaft member is arranged at the second position such that the distance between the shaft member and the first conveyance guide is increased.
    Type: Application
    Filed: June 29, 2020
    Publication date: January 7, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Sueaki OKAMOTO
  • Patent number: 10564587
    Abstract: An image forming apparatus includes an image carrier, a transfer member, a registration roller pair, and a conveyance guide. The conveyance guide includes a first conveyance guide which faces an image-carrier-side surface of the recording medium, and a second conveyance guide which faces a transfer-member-side surface of the recording medium. The second conveyance guide has a main body portion which has a projecting portion which projects toward the first conveyance guide most in a recording-medium conveyance path, and a step portion which is formed adjacent to the projecting portion on a downstream side of the projecting portion, an elastic member which projects toward the first conveyance guide beyond a plane passing through a downstream-side end of the projecting portion and a downstream-side end of the step portion, and a film member which covers the main body portion together with the elastic member.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 18, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Sueaki Okamoto
  • Publication number: 20190354057
    Abstract: An image forming apparatus includes an image carrier, a transfer member, a registration roller pair, and a conveyance guide. The conveyance guide includes a first conveyance guide which faces an image-carrier-side surface of the recording medium, and a second conveyance guide which faces a transfer-member-side surface of the recording medium. The second conveyance guide has a main body portion which has a projecting portion which projects toward the first conveyance guide most in a recording-medium conveyance path, and a step portion which is formed adjacent to the projecting portion on a downstream side of the projecting portion, an elastic member which projects toward the first conveyance guide beyond a plane passing through a downstream-side end of the projecting portion and a downstream-side end of the step portion, and a film member which covers the main body portion together with the elastic member.
    Type: Application
    Filed: March 28, 2019
    Publication date: November 21, 2019
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Sueaki OKAMOTO
  • Patent number: 10409208
    Abstract: An image forming apparatus includes a conveyance section, an image forming section, a fixing section, a sheet output tray, a toner container, a suitable product determining section, and a control section. The suitable product determining section determines whether the toner container loaded in an apparatus body is a suitable product. When the suitable product determining section determines that the toner container is not a suitable product, on condition of successive feeding of sheets, the control section allows, after every predetermined number of sheets have been subjected to an image forming operation, a fixing aging operation for stopping the image forming operation and rotating rotating bodies of the fixing section to be performed. When the suitable product determining section determines that the toner container is a suitable product, the control section keeps the fixing aging operation conditional on successive feeding of sheets from being performed.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: September 10, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Sueaki Okamoto, Eiji Nimura, Koji Kuramashi
  • Patent number: 10281840
    Abstract: An image forming apparatus includes a conveyance section, an image forming section, a fixing section, a sheet output tray, a toner container, a suitable product determining section, and a control section. The suitable product determining section determines whether the toner container loaded in an apparatus body is a suitable product. When the suitable product determining section determines that the toner container is not a suitable product, the control section allows the conveyance section, the image forming section, and the fixing section to form, on a sheet, a solid image having a circumferential length of one of rotating bodies of the fixing section or longer, and allows the sheet on which the solid image is formed to pass through a fixing nip, to thereby periodically allow a cleaning operation of removing a contamination adhering to surfaces of rotating bodies of the fixing section to be performed.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: May 7, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Sueaki Okamoto, Eiji Nimura, Koji Kuramashi
  • Patent number: 10156822
    Abstract: An image forming apparatus includes a transport unit, an image forming unit, an output tray, a toner container, and a processor that realizes a function of a conformity decision unit, a change reception unit, and a controller. The controller discharges, when the conformity decision unit decides that the toner container is not a conforming product, a quality check sheet to the output tray each time a predetermined number of sheets have been printed, or each time a predetermined time has elapsed. The change reception unit receives a change of a quality adjustment value from a user. The controller controls the operation of the transport unit and the image forming unit, according to the quality adjustment value that has been changed and received by the change reception unit.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: December 18, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Eiji Nimura, Koji Kuramashi, Sueaki Okamoto
  • Publication number: 20180314187
    Abstract: An image forming apparatus includes a conveyance section, an image forming section, a fixing section, a sheet output tray, a toner container, a suitable product determining section, and a control section. The suitable product determining section determines whether the toner container loaded in an apparatus body is a suitable product. When the suitable product determining section determines that the toner container is not a suitable product, the control section allows the conveyance section, the image forming section, and the fixing section to form, on a sheet, a solid image having a circumferential length of one of rotating bodies of the fixing section or longer, and allows the sheet on which the solid image is formed to pass through a fixing nip, to thereby periodically allow a cleaning operation of removing a contamination adhering to surfaces of rotating bodies of the fixing section to be performed.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Sueaki OKAMOTO, Eiji NIMURA, Koji KURAMASHI
  • Publication number: 20180314198
    Abstract: An image forming apparatus includes a conveyance section, an image forming section, a fixing section, a sheet output tray, a toner container, a suitable product determining section, and a control section. The suitable product determining section determines whether the toner container loaded in an apparatus body is a suitable product. When the suitable product determining section determines that the toner container is not a suitable product, on condition of successive feeding of sheets, the control section allows, after every predetermined number of sheets have been subjected to an image forming operation, a fixing aging operation for stopping the image forming operation and rotating rotating bodies of the fixing section to be performed. When the suitable product determining section determines that the toner container is a suitable product, the control section keeps the fixing aging operation conditional on successive feeding of sheets from being performed.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Sueaki OKAMOTO, Eiji NIMURA, Koji KURAMASHI
  • Patent number: 10067456
    Abstract: A drive transmitting device includes a first rotator, a second rotator, a rotation driver, and a linker. The first rotator is rotatable. The second rotator is rotatable in a state where the second rotator comes into pressure contact with the first rotator. The rotation driver rotates the first rotator. The linker links speed change operation with pressure change operation, the speed change operation being operation to change a speed ratio of a surface of the first rotator and a surface of the second rotator, the pressure change operation being operation to change pressure force of the second rotator to the first rotator.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 4, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Sueaki Okamoto
  • Publication number: 20180239283
    Abstract: An image forming apparatus includes a transport unit, an image forming unit, an output tray, a toner container, and a processor that realizes a function of a conformity decision unit, a change reception unit, and a controller. The controller discharges, when the conformity decision unit decides that the toner container is not a conforming product, a quality check sheet to the output tray each time a predetermined number of sheets have been printed, or each time a predetermined time has elapsed. The change reception unit receives a change of a quality adjustment value from a user. The controller controls the operation of the transport unit and the image forming unit, according to the quality adjustment value that has been changed and received by the change reception unit.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Eiji NIMURA, Koji KURAMASHI, Sueaki OKAMOTO
  • Publication number: 20180032021
    Abstract: A drive transmitting device includes a first rotator, a second rotator, a rotation driver, and a linker. The first rotator is rotatable. The second rotator is rotatable in a state where the second rotator comes into pressure contact with the first rotator. The rotation driver rotates the first rotator. The linker links speed change operation with pressure change operation, the speed change operation being operation to change a speed ratio of a surface of the first rotator and a surface of the second rotator, the pressure change operation being operation to change pressure force of the second rotator to the first rotator.
    Type: Application
    Filed: July 21, 2017
    Publication date: February 1, 2018
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Sueaki OKAMOTO
  • Patent number: 9436134
    Abstract: An image forming apparatus includes a transferring member and a guiding part. The transferring member is configured to form a transferring nip with an image carrier and to transfer a toner image from the image carrier to a sheet at the transferring nip. The guiding part has an upper guiding member and a lower guiding member which are disposed oppositely to both faces of the sheet in a vertical direction along a sheet conveying path toward the transferring nip. The lower guiding member has a movable lower guiding plate and a plurality of elastic members. The movable lower guiding plate is made of a thin elastic material. The plurality of elastic members are disposed along a sheet width direction crossing the sheet conveying direction and supports the movable lower guiding plate to be displaceable in a direction apart from the image carrier.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 6, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Sueaki Okamoto, Sadanori Nakae
  • Publication number: 20160091833
    Abstract: An image forming apparatus includes a transferring member and a guiding part. The transferring member is configured to form a transferring nip with an image carrier and to transfer a toner image from the image carrier to a sheet at the transferring nip. The guiding part has an upper guiding member and a lower guiding member which are disposed oppositely to both faces of the sheet in a vertical direction along a sheet conveying path toward the transferring nip. The lower guiding member has a movable lower guiding plate and a plurality of elastic members. The movable lower guiding plate is made of a thin elastic material. The plurality of elastic members are disposed along a sheet width direction crossing the sheet conveying direction and supports the movable lower guiding plate to be displaceable in a direction apart from the image carrier.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 31, 2016
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Sueaki OKAMOTO, Sadanori NAKAE
  • Patent number: 8953990
    Abstract: An image forming apparatus includes an image bearing member and a transfer member, which form a transfer nip portion, and a guide member for guiding a sheet to the transfer nip portion. The guide member includes a rigid restricting member including a guide surface, a cut portion formed at a leading edge part of the guide surface, and a sheet-like elastic restricting member to cover the cut portion. The elastic restricting member includes an end edge portion extending straight in the sheet width direction on a downstream side in the sheet conveying direction. A ridge defining the leading edge part of the guide surface is a ridge extending straight in the sheet width direction, and the end edge portion of the elastic restricting member is arranged at a position shifted toward an upstream side in the sheet conveying direction from the ridge of the guide surface.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: February 10, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Sueaki Okamoto, Einosuke Kikuchi
  • Publication number: 20130322944
    Abstract: An image forming apparatus includes an image bearing member and a transfer member, which form a transfer nip portion, and a guide member for guiding a sheet to the transfer nip portion. The guide member includes a rigid restricting member including a guide surface, a cut portion formed at a leading edge part of the guide surface, and a sheet-like elastic restricting member to cover the cut portion. The elastic restricting member includes an end edge portion extending straight in the sheet width direction on a downstream side in the sheet conveying direction. A ridge defining the leading edge part of the guide surface is a ridge extending straight in the sheet width direction, and the end edge portion of the elastic restricting member is arranged at a position shifted toward an upstream side in the sheet conveying direction from the ridge of the guide surface.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventors: Sueaki Okamoto, Einosuke Kikuchi
  • Patent number: 8311444
    Abstract: A cleaning device may include a cleaning member, a toner recovery roller, a scraping member, and a supporting member. The cleaning member may rotate so as to remove residual toner from an intermediate transfer belt looped between multiple rollers. In some embodiments, a toner recovery roller may electrically recover the toner from the cleaning member. Some embodiments include a scraping member in contact with the cleaning member at a downstream side, in a rotating direction of the cleaning member, relative to a cleaning nip section where the intermediate transfer belt and the cleaning member are in contact with each other and at an upstream side, in the rotating direction of the cleaning member, relative to a recovery nip section where the cleaning member and the toner recovery roller are in contact with each other. The supporting member may be configured to fix a relative position between the toner recovery roller and the cleaning member and support the scraping member.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: November 13, 2012
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Sueaki Okamoto, Kouji Uno
  • Patent number: 8213835
    Abstract: An image forming apparatus has an image bearing member on which a toner image is to be formed. A transfer roller contacts a surface of the image bearing member for transferring a toner image on the image bearing member to one side of a transfer medium by applying a voltage having a polarity opposite to that of the toner image on the image bearing member from the other side of the transfer medium. A biasing member biases the transfer roller toward the image bearing member. The transfer roller is shaped such that the outer diameter of a first part corresponding to the width of a specified sheet size is constant and the outer diameters of second parts located closer to opposite ends of the transfer roller than the first part are gradually increased toward the outer sides in an axial direction.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: July 3, 2012
    Assignee: Kyocera Mita Corporation
    Inventor: Sueaki Okamoto
  • Patent number: 8059980
    Abstract: An image forming apparatus is provided with an image bearing member for transferring an image to a transfer material using a developer, a transfer roller arranged in contact with the circumferential surface of the image bearing member for forming a transfer nip portion, and a displacing drive part for displacing a surface contact position corresponding to a position of the circumferential surface of the image bearing member where the transfer nip portion is formed by the contact of the transfer roller at least to either one of a first position and a second position different from the first position.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: November 15, 2011
    Assignee: Kyocera Mita Corporation
    Inventor: Sueaki Okamoto
  • Publication number: 20100303517
    Abstract: An image forming apparatus has an image bearing member on which a toner image is to be formed. A transfer roller contacts a surface of the image bearing member for transferring a toner image on the image bearing member to one side of a transfer medium by applying a voltage having a polarity opposite to that of the toner image on the image bearing member from the other side of the transfer medium. A biasing member biases the transfer roller toward the image bearing member. The transfer roller is shaped such that the outer diameter of a first part corresponding to the width of a specified sheet size is constant and the outer diameters of second parts located closer to opposite ends of the transfer roller than the first part are gradually increased toward the outer sides in an axial direction.
    Type: Application
    Filed: May 26, 2010
    Publication date: December 2, 2010
    Applicant: KYOCERA MITA CORPORATION
    Inventor: Sueaki Okamoto