Liquid ejecting device, head, and liquid filling method

Patent metadata

Field	Value
Publication number	US-9962945-B2
Application number	US-201615288879-A
Country	US
Kind code	B2
Filing date	Oct 7, 2016
Priority date	Oct 30, 2015
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

There are provided a liquid ejecting device stably containing liquid inside a liquid containing unit, a head, and a liquid filling method. The liquid ejecting device includes a liquid container that can store liquid thereinside, a head including a liquid containing unit that has a holding member capable of holding liquid thereinside and a liquid ejecting unit that ejects liquid, and a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and an internal space of the liquid containing unit has a rectangular parallelepiped shape, and a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction is 1.5 or more in a posture having the head provided on the carriage.

First claim

What is claimed is:

1. A liquid ejecting device comprising:
a liquid container that can store liquid thereinside;
a head provided on a carriage and including a liquid containing unit that has a holding member capable of holding liquid thereinside and a liquid ejecting unit that ejects liquid; and
a flexible member that connects the liquid container to the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit,
wherein an internal space of the liquid containing unit has a rectangular parallelepiped shape,
wherein a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction is 1.5 or more in a posture having the head provided on the carriage,
wherein the internal space of the liquid containing unit is covered by a cover member, the cover member has a pressing rib, and the pressing rib presses the holding member,
wherein a supply port that is opened to an inside of the liquid containing unit and is an entrance of the liquid supplied from the liquid container to the inside of the liquid containing unit is formed at a position offset from a facing position, wherein the facing position is a position facing a position at which there is formed a flow passage entrance where the internal space communicates with a liquid flow passage through which the liquid is supplied to the liquid ejecting unit from the internal space in the liquid containing unit, and
wherein in a case where the internal space of the liquid containing unit is equally divided into three areas in an extending direction of the long side:
the flow passage entrance is formed in an area at one end along the extending direction of the long side of the three areas, and
the supply port is formed in a center area along the extending direction of the long side of the three areas.

2. The liquid ejecting device according to claim 1 , wherein
the carriage is configured capable of reciprocating, and
the long side of the cross-section along the horizontal surface in the internal space is a side extending in a direction intersecting with a moving direction of the reciprocating movement of the carriage.

3. The liquid ejecting device according to claim 1 , wherein a value obtained by dividing the length of the long side of the cross-section along the horizontal surface in the internal space by a length of a short side of the cross-section along the horizontal surface in the internal space is 2.0 or more in a posture having the head provided on the carriage.

4. The liquid ejecting device according to claim 1 , wherein the holding member is formed of fibers of polyolefin-based resin.

5. A head capable of being provided on a carriage and including a liquid containing unit that can store liquid thereinside and a liquid ejecting unit that ejects liquid, wherein
the head is connected to a liquid container that can store liquid thereinside via a flexible member,
the liquid stored inside the liquid container is supplied inside the liquid containing unit through the flexible member,
a holding member that can hold liquid is arranged inside the liquid containing unit,
an internal space of the liquid containing unit is formed into a rectangular parallelepiped shape, and
a value obtained by dividing a length of a long side of a cross-section along a horizontal surface in the internal space by a length of the holding member along a gravity direction in a posture provided on the carriage is 1.5 or more,
wherein the internal space of the liquid containing unit is covered by a cover member, the cover member has a pressing rib, and the pressing rib presses the holding member,
wherein a supply port that is opened to an inside of the liquid containing unit and is an entrance of the liquid supplied from the liquid container to the inside of the liquid containing unit is formed at a position offset from a facing position, wherein the facing position is a position facing a position at which there is formed a flow passage entrance where the internal space communicates with a liquid flow passage through which the liquid is supplied to the liquid ejecting unit from the internal space in the liquid containing unit, and
wherein in a case where the internal space of the liquid containing unit is equally divided into three areas in an extending direction of the long side:
the flow passage entrance is formed in an area at one end along the extending direction of the long side of the three areas, and
the supply port is formed in a center area along the extending direction of the long side of the three areas.

6. The liquid ejecting device according to claim 1 , wherein a flow path exists between the liquid containing unit and the liquid ejecting unit, and a filter is provided in the flow path.

7. The liquid ejecting device according to claim 6 , wherein the filter and the holding member are pressed against each other.

8. The head according to claim 5 , wherein a flow path exists between the liquid containing unit and the liquid ejecting unit, and a filter is provided in the flow path.

9. The head according to claim 8 , wherein the filter and the holding member are pressed against each other.

10. The head according to claim 5 , wherein
the carriage is configured capable of reciprocating, and
the long side of the cross-section along the horizontal surface in the internal space is a side extending in a direction intersecting with a moving direction of the reciprocating movement of the carriage.

11. The head according to claim 5 , wherein a value obtained by dividing the length of the long side of the cross-section along the horizontal surface in the internal space by a length of a short side of the cross-section along the horizontal surface in the internal space is 2.0 or more in a posture having the head provided on the carriage.

12. The head according to claim 5 , wherein the holding member is formed of fibers of polyolefin-based resin.

Assignees

• Canon Kk

Inventors

• Takaoka Tsubasa
• Iinuma Keisuke
• Nanjo Tatsuo
• Tsukuda Keiichiro
• Kotaki Yasuo

Classifications

• B41J2/17506 Primary

  Refilling of the cartridge · CPC title

• B41J2/17523

  Ink connection · CPC title

• B41J2/17553

  Outer structure · CPC title

• B41J2/17509

  Whilst mounted in the printer · CPC title

• B41J29/02

  Framework · CPC title