Liquid storage container and printing apparatus

Patent metadata

Field	Value
Publication number	US-12296601-B2
Application number	US-202318319427-A
Country	US
Kind code	B2
Filing date	May 17, 2023
Priority date	Jun 10, 2022
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

Provided is a technique in which liquid leaking in attachment and detachment of a liquid storage container to and from a printing apparatus can be retained with a simple, space-saving configuration. The liquid storage container can be attached to the printing apparatus. The liquid storage container includes a storage portion that stores the liquid, a supply port that supplies the liquid stored in the storage portion to the printing apparatus, and a liquid retaining portion that is capable of retaining the liquid leaking in the attachment and detachment of the liquid storage container to and from the printing apparatus by using capillary force. The liquid retaining portion extends along an outer peripheral surface of the supply port, in an attachment direction in which the liquid storage container is attached to the printing apparatus.

First claim

What is claimed is:

1. A liquid storage container attachable to a printing apparatus, comprising:
a storage portion configured to store liquid;
a supply port configured to supply the liquid stored in the storage portion to the printing apparatus; and
a liquid retaining portion configured to retain leaked liquid by using capillary force in a case where the liquid storage container is attached or detached to and from the printing apparatus, wherein
the liquid retaining portion extends along an outer peripheral surface of the supply port, in an attachment direction in which the liquid storage container is attached to the printing apparatus.

2. The liquid storage container according to claim 1 , wherein the capillary force of the liquid retaining portion is such that capillary force in the attachment direction is greater than capillary force in a direction intersecting the attachment direction.

3. The liquid storage container according to claim 2 , wherein the capillary force of the liquid retaining portion is such that, in a posture in which the liquid storage container is attached to the printing apparatus, capillary force in an opposite direction to the attachment direction is greater than capillary force in a gravity direction or a counter-gravity direction.

4. The liquid storage container according to claim 1 , wherein the liquid retaining portion includes a fibrous body.

5. The liquid storage container according to claim 1 , wherein the liquid retaining portion is arranged in an annular shape along the outer peripheral surface of the supply port.

6. The liquid storage container according to claim 1 , wherein an amount of the liquid retainable by the liquid retaining portion is approximately 0.015 ml or more.

7. The liquid storage container according to claim 1 , wherein a volume of the liquid retaining portion is approximately 24 mm 3 or more.

8. The liquid storage container according to claim 1 , wherein an outer periphery of the liquid retaining portion is covered with a cover portion.

9. The liquid storage container according to claim 8 , wherein a distal end portion of the cover portion is located on the distal end side of a distal end portion of the liquid retaining portion in the attachment direction.

10. The liquid storage container according to claim 1 , wherein the liquid retaining portion includes one or more grooves extending in the attachment direction.

11. The liquid storage container according to claim 10 , wherein, in a posture in attachment, a bottom surface of the groove is tilted downward while extending from the distal end side toward the base end side in the attachment direction.

12. The liquid storage container according to claim 1 , wherein the liquid retaining portion includes
a first region in which a first fibrous body is arranged, and
a second region in which a second fibrous body different in density from the first fibrous body is arranged.

13. The liquid storage container according to claim 12 , wherein a first fibrous body has a higher density than the second fibrous body, and is arranged on the based end side of the second fibrous body in the attachment direction.

14. The liquid storage container according to claim 12 , wherein a first fibrous body has a higher density than the second fibrous body, and is arranged on the counter-gravity direction side of the second fibrous body in a posture in attachment.

15. The liquid storage container according to claim 12 , wherein
a fineness of the first fibrous body is 2.5 dtex or less, and
a fineness of the second fibrous body is 5.0 dtex or more.

16. The liquid storage container according to claim 12 , wherein
the number of crimps in the first fibrous body is approximately 16 crimps/25 mm, and
the number of crimps in the second fibrous body is approximately 15 crimps/25 mm.

17. The liquid storage container according to claim 12 , wherein
a crimp percentage of the first fibrous body is approximately 12%, and
a crimp percentage of the second fibrous body is approximately 13%.

18. A printing apparatus comprising:
a liquid supply unit to which liquid is supplied from a liquid storage container including: a storage portion configured to store liquid; a supply port configured to supply the liquid stored in the storage portion to the printing apparatus; and a liquid retaining portion to retain leaked liquid by using capillary force in a case where the liquid storage container is attached or detached to and from the printing apparatus, wherein the liquid retaining portion extends along an outer peripheral surface of the supply port, in an attachment direction in which the liquid storage container is attached to the printing apparatus;
a connection portion configured to connect the supply port in the liquid storage container; and
a printing unit configured to perform printing by using the liquid supplied from the liquid storage container via the connection portion.

Assignees

• Canon Kk

Inventors

• Watanabe Makoto
• Iri Junichiro
• Nojo Naruyuki
• Otani Isao
• Kusano Hiroaki
• Takahashi Satoru

Classifications

• B41J2/17523

  Ink connection · CPC title

• B41J2/17513

  Inner structure · CPC title

• B41J2/17509

  Whilst mounted in the printer · CPC title

• B41J29/13

  Cases or covers · CPC title

• B41J2/1752

  Mounting within the printer · CPC title