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公开(公告)号：US11493863B2
公开(公告)日：2022-11-08
申请号：US17340845
申请日：2021-06-07
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Tomoaki Yoshioka , Mitsuaki Kuroda , Kazuyoshi Hagiwara , Shohei Miyagawa , Kei Tanaka , Masaaki Takahashi , Yoko Miyamoto , Toshiaki Baba
Abstract: Provided is an image forming apparatus including: an annular transfer belt having an outer surface on which an image is transferred; a transferring unit including a transfer cylinder having a transfer area that sandwiches a recording medium with the outer surface of the transfer belt to transfer the image from the outer surface of the transfer belt to the recording medium, and a pair of first rotating bodies disposed on both axial end sides of the transfer cylinder; a pair of circulating members each being wound around the first rotating body and being circulated by rotation of the first rotating bodies; and a holding unit attached to the circulating members, the holding unit configured to hold the recording medium, transport the recording medium with circulation of the circulating members, and pass the recording medium through the transfer area.
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公开(公告)号：US11287764B1
公开(公告)日：2022-03-29
申请号：US17308556
申请日：2021-05-05
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Tomoaki Yoshioka , Yoko Miyamoto , Toshiaki Baba , Tomohiro Wada , Kazuyoshi Hagiwara
IPC: G03G15/16
Abstract: An image forming apparatus includes: a rotating body; a sprocket provided coaxially with the rotating body, the sprocket being configured to rotate integrally with the rotating body; a chain including a holder configured to hold a leading end portion of a recording medium, the chain being wound on the sprocket, the chain being configured to rotate so as to transport the recording medium; an annular shaped transfer belt supported by an opposing member opposing the rotating body at an opposing position, the transfer belt being configured to sandwich the recording medium transported by the chain between the transfer belt and the rotating body at the opposing position, in which an image on an outer peripheral surface of the transfer belt is transferred to the recording medium in response to a transfer bias being applied between the rotating body and the opposing member; and a forming member that supports the transfer belt on an upstream side of the opposing position in a transport direction, the forming member being configured to form a contact region in which the transfer belt is brought into contact with the rotating body on the upstream side of the opposing position in the transport direction.
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公开(公告)号：US11256198B1
公开(公告)日：2022-02-22
申请号：US17337526
申请日：2021-06-03
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Tomoaki Yoshioka , Yoko Miyamoto , Toshiaki Baba
Abstract: A transfer device includes: an annular transfer belt including an outer surface, a toner image being transferred to the outer surface of the annular transfer belt; a transfer unit including a transfer cylinder; and a facing roller member that is in contact with an inner surface of the transfer belt, in which the transfer cylinder includes a base material, and a surface layer wound around an outer circumference of the base material, the surface layer being replaceable with respect to the base material, the transfer cylinder has a transfer region where the toner image is transferred from the transfer belt to a recording medium in a state where the recording medium is sandwiched between the transfer cylinder and the outer surface of the transfer belt, the surface layer includes an elastic layer, the surface layer has a thickness of 6.0 mm or more and 10 mm or less and an Asker C hardness of 45° or more and 65° or less, and the facing roller member faces the transfer cylinder in the transfer region.
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公开(公告)号：US12227001B2
公开(公告)日：2025-02-18
申请号：US17864357
申请日：2022-07-13
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Toshiaki Baba , Tomoaki Yoshioka , Satoshi Shigezaki , Yoko Miyamoto , Tomohiro Wada , Haruka Kobayashi , Kazuyoshi Hagiwara
Abstract: An image forming apparatus includes a holding body that holds a formed image; a transport unit that transports a recording medium in a state where a tip of the recording medium is grasped by a grasping portion; a transfer cylinder that has a substantially circular cross section, and that includes a concave portion that accommodates the grasping portion in a direction substantially orthogonal to a rotation direction and transfers an image on the holding body to the recording medium transported by the transport unit by interposing the recording medium transported by the transport unit between the transfer cylinder and the holding body; and an imparting portion that imparts a transport load to the recording medium that is transported to a transfer position at which the image on the holding body is transferred to the recording medium.
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公开(公告)号：US12072646B2
公开(公告)日：2024-08-27
申请号：US17967049
申请日：2022-10-17
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Tomoaki Yoshioka , Mitsuaki Kuroda , Kazuyoshi Hagiwara , Shohei Miyagawa , Kei Tanaka , Masaaki Takahashi , Yoko Miyamoto , Toshiaki Baba
CPC classification number: G03G15/1605 , G03G15/20 , G03G15/2053
Abstract: Provided is an image forming apparatus including: an annular transfer belt having an outer surface on which an image is transferred; a transferring unit including a transfer cylinder having a transfer area that sandwiches a recording medium with the outer surface of the transfer belt to transfer the image from the outer surface of the transfer belt to the recording medium, and a pair of first rotating bodies disposed on both axial end sides of the transfer cylinder; a pair of circulating members each being wound around the first rotating body and being circulated by rotation of the first rotating bodies; and a holding unit attached to the circulating members, the holding unit configured to hold the recording medium, transport the recording medium with circulation of the circulating members, and pass the recording medium through the transfer area.
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Patent Agency Ranking
公开(公告)号：US11774896B2
公开(公告)日：2023-10-03
申请号：US17549410
申请日：2021-12-13
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Kazuki Kishi , Tomoaki Yoshioka , Kazuyoshi Hagiwara , Yoko Miyamoto , Toshiaki Baba , Tomohiro Wada , Yosuke Tsutsumi
CPC classification number: G03G15/6529 , B65H9/04 , B65H9/08
Abstract: A method for attaching a sheet member to a cylinder body includes: preliminarily fixing a first end portion of the sheet member to a first fixation portion of a cylinder body provided in an apparatus body and having a substantially circular cross section; wrapping the sheet member around the cylinder body by rotating the cylinder body; fixing the first end portion and a second end portion of the sheet member to the first fixation portion and a second fixation portion, respectively; and installing an installation member between the apparatus body and an inner surface of the sheet member before the wrapping of the sheet member around the cylinder body.
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17.发明授权公开(公告)号：US11599045B1
公开(公告)日：2023-03-07
申请号：US17556537
申请日：2021-12-20
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Tomoaki Yoshioka , Kazuyoshi Hagiwara , Kazuki Kishi , Yoko Miyamoto , Toshiaki Baba
Abstract: A transfer device includes: a transfer drum that has a groove-like recess extending in an axial direction in an outer circumferential portion thereof, rotates about an axis thereof, and comes into contact with a medium being transported at a portion thereof on an upstream side of the recess in a rotation direction; a nip member, the nip member and the transfer drum forming therebetween a nip part where the medium is nipped; an application member that applies a voltage to the nip part where the medium is nipped, so that an image is transferred to the medium; and a contact mechanism that causes the nip member to come into contact only with a portion on the upstream side of the recess in the transfer drum in the rotation direction at a transfer-start time when the transfer of the image to the medium starts.
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公开(公告)号：US11520252B2
公开(公告)日：2022-12-06
申请号：US17337923
申请日：2021-06-03
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Tomoaki Yoshioka , Masaaki Takahashi , Kazuyoshi Hagiwara , Yoko Miyamoto , Toshiaki Baba
IPC: G03G15/16
Abstract: An image forming apparatus includes: an annular transfer belt having an outer surface on which an image is transferred; a nip portion that forms a nip region for nipping a recording medium with an outer surface of the transfer belt; a facing portion that faces the nip region from an inner side of the transfer belt and transfers the image from the transfer belt to the recording medium in the nip region by charging the transfer belt; and a transport unit including a holding portion that holds the recording medium, transports the recording medium by moving the holding portion, and causes the recording medium together with the holding portion to pass the nip region while holding the recording medium at the holding portion.
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公开(公告)号：US11878891B2
公开(公告)日：2024-01-23
申请号：US17547475
申请日：2021-12-10
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Kazuki Kishi , Tomoaki Yoshioka , Kazuyoshi Hagiwara , Yoko Miyamoto , Toshiaki Baba , Tomohiro Wada , Yosuke Tsutsumi
CPC classification number: B65H5/025 , B65H5/085 , G03G15/0131 , G03G15/2028 , G03G15/65 , G03G15/657 , G03G15/6529 , G03G15/6558 , G03G21/168 , G03G21/1685 , G03G2215/00409 , G03G2215/00413 , G03G2215/00687
Abstract: A cylinder member includes: a cylinder body having a cross section and including a dent portion; a sheet member wrapped around the cylinder body and including a metal layer contacting the cylinder body and an outer layer; a first attachment member on a sheet member first end portion and removably attached to the dent portion; a second attachment member on a metal layer end portion protruding from the outer layer in the circumferential direction at a sheet member second end portion, the second attachment member being removably attached to the dent portion; a tension-applying mechanism pulling the second attachment member in a dent portion depth direction to apply tension to the metal layer; a projection on one of the second attachment member and metal layer end portion; and a fitting portion on other one of the second attachment member and the metal layer end portion and fitted to the projection.
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公开(公告)号：US11835889B2
公开(公告)日：2023-12-05
申请号：US17715242
申请日：2022-04-07
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Yoko Miyamoto , Takashi Hoshino , Shinji Okuyama , Tomoaki Yoshioka , Toshiaki Baba , Chihiro Iijima
CPC classification number: G03G15/1615 , G03G15/0131 , G03G15/2007 , G03G15/55 , G03G15/70
Abstract: An image forming apparatus includes: a colorant image former; an image holder configured to hold a colorant image formed by the colorant image former and to be rotationally driven; a transfer member configured to transfer the colorant image onto a recording medium, which is transported from an upstream side, by sandwiching the recording medium between the transfer member and the image holder, and rotationally driving the transfer member to transport the recording medium to a downstream side; and a contact-and-separation mechanism configured to relatively contact or separate the image holder and the transfer member, in which, in response to an abnormality being detected, the image forming apparatus operates in a mode in which the contact-and-separation mechanism relatively separates the image holder and the transfer member, and then rotational driving of the transfer member is stopped after rotational driving of the image holder is stopped.
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