公开(公告)号：US20210213736A1

公开(公告)日：2021-07-15

申请号：US17143406

申请日：2021-01-07

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoji TAKAHASHI ,  Osamu MURAYAMA ,  Daiki TATSUTA

IPC: B41J2/145 ,  B41J29/393 ,  B41J2/175

Abstract: A printing apparatus includes a head unit having a support portion configured to support a plurality of heads capable of discharging a droplet in a discharge direction, and a carriage on which the head unit is removably mounted from upstream in the discharge direction, wherein the carriage has a bottom formed with an opening from which a nozzle surface of the head for discharging the droplet is exposed, the support portion is provided with at least one protruding portion protruding from a bottom surface of the support portion in the discharge direction, and the bottom is provided with an insertion hole through which the at least one protruding portion is inserted, and a biasing member biasing the support portion in an intersecting direction intersecting with the discharge direction in a state where the at least one protruding portion is inserted through the insertion hole.

公开(公告)号：US20210163245A1

公开(公告)日：2021-06-03

申请号：US17106482

申请日：2020-11-30

Applicant: SEIKO EPSON CORPORATION

Inventor： Masayoshi YAMADA ,  Hikaru IWAI ,  Shinya YAMAZAKI ,  Osamu MURAYAMA

IPC: B65H7/06 ,  G01B17/00 ,  B65H3/06

Abstract: An ultrasonic apparatus includes a first ultrasonic sensor that transmits an ultrasonic wave to an object and receives the ultrasonic wave reflected by the object, a second ultrasonic sensor that transmits an ultrasonic wave to the object and receives the ultrasonic wave reflected by the object, an determination circuit that outputs an error signal when the difference between a first distance between the first ultrasonic sensor and the object calculated based on ultrasonic wave transmission and reception processing using the first ultrasonic sensor and a second distance between the second ultrasonic sensor and the object calculated based on ultrasonic wave transmission and reception processing using the second ultrasonic sensor is equal to or greater than a threshold value.

公开(公告)号：US20200298580A1

公开(公告)日：2020-09-24

申请号：US16820768

申请日：2020-03-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Daiki TATSUTA ,  Osamu MURAYAMA ,  Yoji TAKAHASHI

IPC: B41J2/175 ,  B41J2/16 ,  B41J2/14

Abstract: A liquid ejecting unit includes: a liquid ejecting head configured to eject a liquid; a holding portion holding the liquid ejecting head; a coupling member; and a first fixing member fixing the liquid ejecting head to the holding portion, in which the coupling member is provided with a first coupling portion and a first through-hole, the liquid ejecting head is provided with a second coupling portion that is configured to be coupled to the first coupling portion, and the first fixing member passes through the first through-hole in a state in which the first coupling portion and the second coupling portion are coupled to each other.

公开(公告)号：US20200276845A1

公开(公告)日：2020-09-03

申请号：US16800690

申请日：2020-02-25

Applicant: SEIKO EPSON CORPORATION

Inventor： Osamu MURAYAMA ,  Shinya YAMAZAKI

IPC: B41J25/308

Abstract: Provided is a printing apparatus including a platen portion including a platen surface on which a medium is disposed, and a carriage including a printing head and a distance sensor, the carriage being configured to move in a direction B on the platen surface. The printing apparatus further includes a control unit configured to move the carriage to measure, by using the distance sensor, a distance to the medium at each position to which the carriage moves, and to specify, based on information of the position and the distance, a position of an adjustment pattern printing range in which an adjustment pattern is printed on the medium.

公开(公告)号：US20190160837A1

公开(公告)日：2019-05-30

申请号：US16202772

申请日：2018-11-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Osamu MURAYAMA

IPC: B41J19/20 ,  B41J19/00 ,  B41J2/21

Abstract: A carriage moving mechanism including a driving unit including a driving pulley, a driving motor, and a first support member for supporting both the driving pulley and the driving motor, a driven unit including a driven pulley and a second support member for supporting the driven pulley, and a third support member supporting both the driving unit and the driven unit, an annular belt that is wound around both the driving pulley and the driven pulley, a first outer peripheral surface and a second outer peripheral surface facing to the first outer peripheral surface, and a first carriage that is attached to the first outer peripheral surface, wherein the second support member, the third support member, and the first support member are aligned in this order in a first axis, and the third support member is disposed inside the annular belt.