公开(公告)号：US20190224983A1

公开(公告)日：2019-07-25

申请号：US16370262

申请日：2019-03-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoshiharu ARUGA ,  Toshio KUMAGAI ,  Hitoshi MATSUMOTO

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/17596 ,  B41J2/14 ,  B41J2/17506 ,  B41J2/17509 ,  B41J2/17523 ,  B41J2/17556

Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.

公开(公告)号：US20180257385A1

公开(公告)日：2018-09-13

申请号：US15980574

申请日：2018-05-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoshiharu ARUGA ,  Toshio KUMAGAI ,  Hitoshi MATSUMOTO

IPC: B41J2/175 ,  B41J2/14

CPC classification number: B41J2/17596 ,  B41J2/14 ,  B41J2/17506 ,  B41J2/17509 ,  B41J2/17523 ,  B41J2/17556

Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.

公开(公告)号：US20170157946A1

公开(公告)日：2017-06-08

申请号：US15435531

申请日：2017-02-17

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoshiharu ARUGA ,  Toshio KUMAGAI ,  Hitoshi MATSUMOTO

IPC: B41J2/175

CPC classification number: B41J2/17596 ,  B41J2/14 ,  B41J2/17506 ,  B41J2/17509 ,  B41J2/17523 ,  B41J2/17556

Abstract: Provided is a liquid injecting apparatus equipped with a liquid injecting head, which is mounted on a carriage and moved reciprocally in a widthwise direction of a target, and a valve unit, which is mounted on the carriage to be supplied with liquid via a supply passage from a liquid retainer and to supply liquid to the liquid injecting head. The valve unit has a pressure chamber connected to the liquid retainer via the supply passage; a valve, which opens or closes the supply passage to supply liquid to the pressure chamber; and a flexible film member, which is displaced based on a negative pressure generated as liquid in the pressure chamber decreases to thereby operate the valve.