公开(公告)号：US20190039380A1

公开(公告)日：2019-02-07

申请号：US16065549

申请日：2016-11-18

Applicant: Seiko Epson Corporation

Inventor： Satoshi SHINADA ,  Taku ISHIZAWA ,  Yoshiaki SHIMIZU ,  Noriyuki FUKASAWA

IPC: B41J2/175

Abstract: An object is to suppress reduction of the stability of electrical connection between a liquid ejection apparatus and a liquid supply unit. A liquid supply unit (20) configured to be mountable to a liquid ejection apparatus (50) that has a first electrode (930a) and a second electrode (930b) comprises a first contact portion (cpb) configured to be in contact with the first electrode (930a) in a state that the liquid supply unit (20) is mounted to the liquid ejection apparatus (50); a second contact portion (cpb) configured to be in contact with the second electrode (930b) in the state that the liquid supply unit is mounted to the liquid ejection apparatus (50); and a wall portion (40) configured such that the first contact portion (cpb) and the second contact portion (cpb) are placed therein. The first contact portion (cpb) is placed on a first wall face (S1) of the wall portion (40), and the second contact portion (cpb) is placed on a second wall face (S2) of the wall portion that is on an opposite side to the first wall face (S1).

公开(公告)号：US20180272723A1

公开(公告)日：2018-09-27

申请号：US15923431

申请日：2018-03-16

Applicant: SEIKO EPSON CORPORATION

Inventor： Satoshi SHINADA ,  Tadahiro MIZUTANI ,  Taku ISHIZAWA ,  Noriyuki FUKASAWA ,  Tadashi WATANABE

IPC: B41J2/175 ,  B67D7/02

CPC classification number: B41J2/17509 ,  B67D7/0288

Abstract: At least one of making an ink replenishing operation easy and making it possible to select one out of a plurality of types of ink replenishment containers in order to perform ink replenishment is achieved. An ink replenishment assist apparatus includes a plug detachably mounted to the ink inlet of an ink tank and a conduit. The conduit has a first opening open to the inside of the ink tank in an in-use state of the ink replenishment assist apparatus, a second opening positioned on an opposite side to the first opening, and open to the outside of the ink tank, and a channel that brings the first opening and the second opening into communication with each other.

公开(公告)号：US20190016146A1

公开(公告)日：2019-01-17

申请号：US16066293

申请日：2016-11-18

Applicant: Seiko Epson Corporation

Inventor： Noriyuki FUKASAWA ,  Taku ISHIZAWA ,  Yoshiaki SHIMIZU ,  Satoshi SHINADA

IPC: B41J2/175 ,  B41J2/06 ,  B41J2/17

CPC classification number: B41J2/17523 ,  B41J2/06 ,  B41J2/1629 ,  B41J2/1707 ,  B41J2/17509 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/1753 ,  B41J2/1755 ,  B41J2/17553 ,  B41J2/17596 ,  B41J29/13 ,  B41J29/393 ,  B41J2002/062

Abstract: A liquid supply unit that includes a liquid ejection apparatus and configured to be mounted onto a holder unit that has a liquid introducing needle that extends in a first direction includes an outer shell, a liquid supply port, and an engagement structure including a first engagement portion, in which the first engagement portion is disposed on a mounting direction side of the outer shell at a position that overlaps with the outer shell when the liquid supply unit is viewed from the demounting direction side.

公开(公告)号：US20190009555A1

公开(公告)日：2019-01-10

申请号：US16065963

申请日：2016-11-18

Applicant: Seiko Epson Corporation

Inventor： Yoshiaki SHIMIZU ,  Satoshi SHINADA ,  Taku ISHIZAWA ,  Noriyuki FUKASAWA

IPC: B41J2/175

CPC classification number: B41J2/1753 ,  B41J2/175 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17523 ,  B41J2/17546 ,  B41J2/17553 ,  B41J2002/17516

Abstract: An object is to identify an abnormal mounted state of a liquid supply unit to a liquid ejection apparatus. There is provided a liquid supply unit configured to supply a liquid to a liquid ejection apparatus that comprises a first electrode assembly including a first electrode and a second electrode; an engagement structure; and a mounting structure which the liquid supply unit is mounted to. The liquid supply unit comprises a liquid supply portion; an engaged structure configured to be engaged with the engagement structure in a mounted state and thereby restrict a motion of the liquid supply unit in a first direction that is a direction of dismounting the liquid supply unit; and an electrically conductive portion provided in the engaged structure. The electrically conductive portion is configured to come into contact with the first electrode and the second electrode in an engaged state that the engaged structure is engaged with the engagement structure, so as to provide electrical continuity between the first electrode and the second electrode and cause the liquid ejection apparatus to detect mounting of the liquid supply unit to the liquid ejection apparatus.

公开(公告)号：US20170355196A1

公开(公告)日：2017-12-14

申请号：US15617834

申请日：2017-06-08

Applicant: Seiko Epson Corporation

Inventor： Satoshi SHINADA ,  Tadahiro MIZUTANI ,  Taku ISHIZAWA ,  Noriyuki FUKASAWA ,  Tadashi WATANABE ,  Ryoichi TANAKA ,  Eiko YANAGIDA

IPC: B41J2/175

CPC classification number: B41J2/17506 ,  B41J2/17509 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17553 ,  B41J2/17596

Abstract: An ink replenish adjunctive device is used to replenish an ink to an ink tank that includes an ink inlet member having a flow path in an axial direction. The ink replenish adjunctive device includes a connection portion having an end that is connectable to the ink inlet member in a liquid-tight state, and an ink inflow portion that is configured to allow the ink flow toward the connection portion.

公开(公告)号：US20200269586A1

公开(公告)日：2020-08-27

申请号：US16066048

申请日：2016-11-18

Applicant: Seiko Epson Corporation

Inventor： Taku ISHIZAWA ,  Satoshi SHINADA ,  Yoshiaki SHIMIZU ,  Noriyuki FUKASAWA

IPC: B41J2/175

Abstract: A liquid supply unit includes an outer shell; a contact portion that is disposed in the outer shell and that is configured to electronically connect to the apparatus-side terminal by making contact with the apparatus-side terminal; a liquid supply port that is disposed on the outer shell and used for inserting the liquid introducing portion; and a receiving portion that extends in a protruding direction in which the guide member protrudes outward in a mounting state in which the liquid supply unit is mounted onto the liquid ejection apparatus, and that is configured to receive the guide member. At least a part of the receiving portion is located between the liquid supply port and the contact portion in a predetermined direction orthogonal to a direction in which the receiving portion extends.

公开(公告)号：US20190016144A1

公开(公告)日：2019-01-17

申请号：US16066012

申请日：2016-11-18

Applicant: Seiko Epson Corporation

Inventor： Taku ISHIZAWA ,  Satoshi SHINADA ,  Yoshiaki SHIMIZU ,  Noriyuki FUKASAWA

IPC: B41J2/175

Abstract: A liquid supply unit includes an outer shell, a liquid supply portion that is arranged in the outer shell and can supply a liquid to the liquid ejection apparatus, and an engaged structure including an engaged portion that can engage with the engagement portion of the liquid ejection apparatus, and a first opening that is formed in the outer shell and through which the engagement structure can be inserted. The engaged portion is arranged further inward than an outer surface of the outer shell.

公开(公告)号：US20170182781A1

公开(公告)日：2017-06-29

申请号：US15381473

申请日：2016-12-16

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoshiaki SHIMIZU ,  Satoshi SHINADA ,  Taku ISHIZAWA ,  Noriyuki FUKASAWA

IPC: B41J2/175

CPC classification number: B41J2/1752 ,  B41J2/175 ,  B41J2/17503 ,  B41J2/17513 ,  B41J2/1753 ,  B41J2/17553 ,  B41J2/17566

Abstract: A further improvement in convenience is desired in conventional liquid ejecting systems. A liquid supplying unit is mountable to a carriage that has a first projection, a second projection and a liquid introduction needle. The unit includes six wall portions. The first wall portion is provided with a liquid supplying portion connectable to a liquid introduction needle, a first recess portion adapted to receive the first projection, and a second recess portion adapted to receive the second projection. In a planar view of the first wall portion, the liquid supplying portion is positioned closer to the fifth wall portion than to the sixth wall portion, and when the first wall portion is equally divided into a first region, a second region and a third region, the first recess portion is positioned in the first region, and the second recess portion is positioned in the third region.