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

IPC: G03G15/16 ,  G03G15/20

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.

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.

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

IPC: G03G15/16 ,  G03G15/01

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.