Printing apparatus and liquid storage member

Patent metadata

Field	Value
Publication number	US-9738081-B2
Application number	US-201615296876-A
Country	US
Kind code	B2
Filing date	Oct 18, 2016
Priority date	Oct 30, 2015
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

The printing apparatus of the present invention includes: a print head; and a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally. The liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction. In the case where the liquid storage container is in the second posture, the liquid injection portion and the communication flow path are located on the upper side of the liquid storage container.

First claim

What is claimed is:

1. A printing apparatus comprising:
a print head that performs a printing operation by ejecting a liquid;
a liquid storage container in which a liquid storage chamber that stores the liquid to be supplied to the print head, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally; and
a liquid injection portion provided on the liquid storage container and configured to be injected the liquid into the liquid storage chamber from the outside,
wherein the liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction, and
in a case where the posture of the liquid storage container is the second posture, the liquid injection portion and the communication flow path are located on an upper side of the liquid storage container.

2. The printing apparatus according to claim 1 , wherein
in the first posture, one end of the communication flow path is connected to a bottom surface side of the liquid storage chamber and the other end is connected to a bottom surface side of the atmosphere communication chamber.

3. The printing apparatus according to claim 1 , wherein
the liquid storage container is used in a state of being installed in the printing apparatus in the first posture and the liquid is injected into the liquid storage chamber from the liquid injection portion in the second posture.

4. The printing apparatus according to claim 1 , wherein
the liquid storage container is removable from the printing apparatus.

5. The printing apparatus according to claim 1 , wherein
the atmosphere communication chamber has an atmosphere communication flow path including an atmosphere opening that opens into the atmosphere, and
the atmosphere opening is arranged in the vicinity of a top of the liquid storage container in the first posture.

6. The printing apparatus according to claim 1 , wherein
the liquid storage chamber and the atmosphere communication chamber are formed by being defined by a partition wall arranged within the liquid storage container.

7. The printing apparatus according to claim 1 , wherein
in the first posture, an opening in the atmosphere communication chamber of the communication flow path is formed on a bottom surface side of the atmosphere communication chamber, and
a bottom surface of the atmosphere communication chamber is arranged so as to be under an ejection port formation surface on which an ejection port through which the liquid is ejected is formed in the print head.

8. The printing apparatus according to claim 7 , wherein
the storage container includes a liquid outflow unit configured to cause the liquid to flow out to the print head side from the liquid storage chamber, and
in a case where the posture of the liquid storage container is the second posture, the liquid outflow unit is located on a lower side of the liquid storage container.

9. The printing apparatus according to claim 8 , wherein
in the first posture, a bottom surface of the atmosphere communication chamber is arranged so as to be under the lowest position of a flow path that connects the liquid outflow unit and the print head.

10. The printing apparatus according to claim 1 , wherein
the liquid storage container includes:
a plurality of liquid storage chambers each storing each of a plurality of kinds of liquid; and
a plurality of atmosphere communication chambers each corresponding to each the plurality of liquid storage chambers.

11. A printing apparatus comprising:
a print head that performs a printing operation by ejecting a liquid;
a liquid storage container in which a liquid storage chamber that stores the liquid to be supplied to the print head, an atmosphere communication chamber that is arranged under the liquid storage chamber in the direction of gravity and which communicates with the atmosphere, and a first communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally;
a liquid injection portion provided on the liquid storage container and configured to be injected the liquid into the liquid storage chamber from the outside;
a second communication flow path that connects the liquid storage chamber and the print head and which supplies the liquid from the liquid storage chamber to the print head;
a first valve that opens/closes the second communication flow path;
an atmosphere communication flow path that is connected to the atmosphere communication chamber and which includes an atmosphere opening that opens into the atmosphere; and
a second valve that opens/closes the atmosphere communication flow path.

12. The printing apparatus according to claim 11 , wherein
in a state where the first valve and the second valves are closed, the liquid is injected into the liquid storage chamber from the liquid injection portion.

13. A liquid storage member comprising:
a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to a printing apparatus that performs a printing operation by ejecting a liquid, an atmosphere communication chamber that communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally; and
a liquid injection portion provided on the liquid storage container and configured to be injected the liquid into the liquid storage chamber from the outside,
wherein the liquid storage container can take a first posture in which the atmosphere communication chamber is located under the liquid storage chamber in the direction of gravity and a second posture in which the atmosphere communication chamber and the liquid storage chamber are located side by side in the horizontal direction, and
in a case where the posture of the liquid storage container is the second posture, the liquid injection portion and the communication flow path are located on an upper side of the liquid storage container.

14. A liquid storage member comprising:
a liquid storage container in which a liquid storage chamber that stores a liquid to be supplied to a printing apparatus that performs a printing operation by ejecting a liquid, an atmosphere communication chamber that is arranged under the liquid storage chamber in the direction of gravity and which communicates with the atmosphere, and a communication flow path that causes the liquid storage chamber and the atmosphere communication chamber to communicate are formed integrally;
a liquid injection portion provided on the liquid storage container and configured to be injected the liquid into the liquid storage chamber from the outside;
a second communication flow path that connects the liquid storage chamber and the printing apparatus and which supplies the liquid from the liquid storage chamber to the printing apparatus;
a first valve that opens/closes the second communication flow path;
an atmosphere communication flow path that is connected to the atmosphere communication chamber and which includes an atmosphere opening that opens into the atmosphere; and
a second valve that opens/closes the atmosphere communication flow path.

Assignees

• Canon Kk

Inventors

• Kimura Yukimichi
• Kiuchi Takahiro
• Kubokawa Junichi
• Sato Kyohei
• Shimada Koki
• Shimmachi Masaya
• Tanaka Yusuke
• Matsumura Hideaki
• Tsukuda Keiichiro
• Nanjo Tatsuo

Classifications

• B41J2/17509 Primary

  Whilst mounted in the printer · CPC title

• B41J2/17523

  Ink connection · CPC title

• B41J2/17503

  Ink cartridges · CPC title

• B41J2/17553

  Outer structure · CPC title

• B41J29/13

  Cases or covers · CPC title