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公开(公告)号：US20180032021A1
公开(公告)日：2018-02-01
申请号：US15655983
申请日：2017-07-21
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO
CPC classification number: G03G15/757 , F16H3/30 , F16H3/78 , G03G21/1647 , G03G2215/00679 , G03G2221/1657
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.
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公开(公告)号：US20240027957A1
公开(公告)日：2024-01-25
申请号：US18350310
申请日：2023-07-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Masahito ISHINO , Takahisa NAKAUE , Tomohiro TAMAKI , Sueaki OKAMOTO
CPC classification number: G03G21/20 , G03G15/0812
Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a control section, and a temperature detecting device. The developing device includes a developer carrying member having an outer circumferential surface on which a toner layer is formed, and a regulation blade that regulates a thickness of the toner layer. The control section executes speed reduction control to reduce a rotation speed of the developer carrying member at a time of warming-up. When a printing operation to be performed after the warming-up is intermittent printing and an interval of the intermittent printing is not less than a prescribed time or a temperature detected by the temperature detecting device is not more than a prescribed temperature, the control section reduces the rotation speed of the developer carrying member in the speed reduction control to a second speed lower than the first speed.
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公开(公告)号：US20240027931A1
公开(公告)日：2024-01-25
申请号：US18350630
申请日：2023-07-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takahisa NAKAUE , Masahito ISHINO , Tomohiro TAMAKI , Sueaki OKAMOTO
CPC classification number: G03G15/0266 , G03G15/04036 , G03G15/0865 , G03G15/2092 , G03G21/0011 , G03G15/5004 , G03G21/02
Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a development voltage power supply, and a control section. The developing device includes a development container for containing a non-magnetic one-component developer composed only of a toner, a developer carrying member having an outer circumferential surface on which a toner layer is formed, and a toner supply member that supplies the toner to the developer carrying member. The control section performs control so that, as a cumulative drive time of the developing device increases, a supply voltage Vsdc becomes larger than a reference supply voltage and a development voltage Vdc becomes smaller than a reference development voltage, thus executing control to vary the development voltage Vdc and the supply voltage Vsdc so as to increase a potential difference Vsdc−Vdc between the supply voltage Vsdc and the development voltage Vdc.
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公开(公告)号：US20190354057A1
公开(公告)日：2019-11-21
申请号：US16368434
申请日：2019-03-28
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO
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.
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公开(公告)号：US20180314187A1
公开(公告)日：2018-11-01
申请号：US15964943
申请日：2018-04-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO , Eiji NIMURA , Koji KURAMASHI
IPC: G03G15/08
CPC classification number: G03G15/0863 , G03G2221/1627 , G03G2221/1823
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.
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Patent Agency Ranking
公开(公告)号：US20230305430A1
公开(公告)日：2023-09-28
申请号：US18186050
申请日：2023-03-17
Applicant: KYOCERA Document Solutions Inc.
Inventor： Tomohiro TAMAKI , Takahisa NAKAUE , Masahito ISHINO , Sueaki OKAMOTO
IPC: G03G15/08
CPC classification number: G03G15/0812 , G03G15/0818 , G03G2215/0634
Abstract: A developing device includes a development container, a toner carrier, and a regulation blade. The toner carrier supplies toner contained in the development container to an image carrier in a facing region between the toner carrier and the image carrier. The regulation blade contacts the toner carrier on an upstream side of the facing region in a rotation direction of the toner carrier, and regulates a thickness of a layer of the toner carried on the toner carrier. The regulation blade is formed of a metal material polished in a direction same as a toner moving direction in a contact region between the regulation blade and the toner carrier such that an arithmetic average roughness of a surface of the regulation blade is 0.3 μm or less.
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公开(公告)号：US20210003957A1
公开(公告)日：2021-01-07
申请号：US16915827
申请日：2020-06-29
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO
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.
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公开(公告)号：US20180314198A1
公开(公告)日：2018-11-01
申请号：US15965089
申请日：2018-04-27
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO , Eiji NIMURA , Koji KURAMASHI
IPC: G03G15/00
CPC classification number: G03G15/5012 , G03G15/0863 , G03G15/55
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.
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公开(公告)号：US20240027936A1
公开(公告)日：2024-01-25
申请号：US18350616
申请日：2023-07-11
Applicant: KYOCERA Document Solutions Inc.
Inventor： Sueaki OKAMOTO , Masahito ISHINO , Takahisa NAKAUE , Tomohiro TAMAKI
CPC classification number: G03G15/0865 , G03G15/2092 , G03G15/5008 , G03G21/0011 , G03G21/02 , G03G2215/0402 , G03G2215/00084
Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, and a control section. The developing device includes a development container for containing a non-magnetic one-component developer composed only of a toner, a developer carrying member having an outer circumferential surface on which a toner layer is formed, and a regulation blade that regulates a thickness of the toner layer. The control section executes speed reduction control to reduce a rotation speed of the developer carrying member at a time of warming-up before image formation to a first speed lower than a reference speed at a time of the image formation. In the speed reduction control, the control section raises the rotation speed of the developer carrying member at a first acceleration rate until the first speed is reached from a state where rotation of the developer carrying member is stopped.
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公开(公告)号：US20180239283A1
公开(公告)日：2018-08-23
申请号：US15899693
申请日：2018-02-20
Applicant: KYOCERA Document Solutions Inc.
Inventor： Eiji NIMURA , Koji KURAMASHI , Sueaki OKAMOTO
CPC classification number: G03G15/502 , G03G15/08 , G03G2215/0697
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.
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