公开(公告)号：US11975532B2

公开(公告)日：2024-05-07

申请号：US17817005

申请日：2022-08-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Daisuke Fujiwara ,  Ryo Hamano

IPC: B41J15/16 ,  B65H18/10 ,  B65H23/16 ,  B65H23/188

CPC classification number: B41J15/16 ,  B41J15/165 ,  B65H18/103 ,  B65H23/16 ,  B65H23/1888 ,  B65H2404/147 ,  B65H2511/214 ,  B65H2553/51 ,  B65H2801/15

Abstract: Provided are: a holding unit configured to rotatably hold a roll body on which a medium is wound; a transport unit configured to transport the medium unwound from the roll body; a tension applying unit configured to press the medium between the holding unit and the transport unit to apply tension to the medium; a driving portion configured to provide driving force to the tension applying unit; a control unit configured to control the transport unit and the driving portion; and a detector configured to detect a load applied to the transport unit, and the control unit controls the driving force by the driving portion on the basis of the load detected by the detector to adjust the tension applied to the medium.

公开(公告)号：US11034173B2

公开(公告)日：2021-06-15

申请号：US16800728

申请日：2020-02-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Daisuke Fujiwara ,  Takashi Akahane

IPC: B41J15/16 ,  B65H23/18 ,  B65H18/26 ,  B65H23/188 ,  B65H23/192 ,  B65H23/26

Abstract: A medium transport device includes a transport unit configured to transport a medium in a transport direction, a winding unit configured to wind the medium, a tension applying unit configured to apply a tension to the medium between the transport unit and the winding unit, a drive unit configured to drive the tension applying unit, and a controller configured to control the drive unit, in which the controller is configured to control the drive unit such that an application of the tension by the tension applying unit is released at a time when a subsequent transport operation by the transport unit is started after a termination of an winding operation of the medium by the winding unit.

公开(公告)号：US11305558B2

公开(公告)日：2022-04-19

申请号：US16777321

申请日：2020-01-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Yuichi Washio ,  Daisuke Fujiwara

IPC: B41J11/00 ,  B41J11/02

Abstract: A medium heating device includes a support portion configured to support a medium being transported, a heating unit configured to heat a medium supported by the support portion, and a detector configured to detect a temperature of the support portion. The support portion includes a metal plate including a first surface as the support face, an end portion of the metal plate is bent toward an opposite side to the first surface, the metal plate is fixed by a fixing portion and a fixing portion next to the fixing portion in a width direction, and a detection position of the detector is set to a position between the mutually adjacent fixing portions in the width direction.

公开(公告)号：US11090957B2

公开(公告)日：2021-08-17

申请号：US16584578

申请日：2019-09-26

Applicant: SEIKO EPSON CORPORATION

Inventor： Daisuke Fujiwara ,  Takashi Akahane

IPC: B41J15/16 ,  B65H23/188 ,  B65H23/16

Abstract: A transport device includes a transport roller configured to transport a roll paper, a winding unit configured to wind the roll paper transported, a tension applying unit configured to apply tension to the medium between the transport roller and the winding unit, and a control unit configured to control the tension applying unit. The control unit is configured to control the tension applying unit to maintain a state where the tension is released, at least during an acceleration period of rotation of the transport roller within a period in which the transport roller applies a transporting force to the roll paper.