Liquid discharge apparatus and liquid storage container

Patent metadata

Field	Value
Publication number	US-12269272-B2
Application number	US-202218064145-A
Country	US
Kind code	B2
Filing date	Dec 9, 2022
Priority date	Dec 10, 2021
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

A liquid discharge apparatus includes a liquid discharge head to discharge liquid to a medium and a liquid storage container. The liquid storage container includes a reservoir portion, a liquid injection portion, a liquid holding unit, and a liquid guide portion. The reservoir portion reserves the liquid that is supplied to the liquid discharge head. The liquid injection portion allows a liquid injection container for injecting the liquid into the reservoir portion to be inserted in the liquid injection portion in a first direction. The liquid holding unit is provided at a position spaced apart from the liquid injection portion and is capable of holding the liquid. The liquid guide portion guides the liquid from the liquid injection portion to the liquid holding unit in a second direction intersecting with the first direction.

First claim

What is claimed is:

1. A liquid discharge apparatus comprising:
a liquid discharge head configured to discharge liquid to a medium; and
a liquid storage container including:
a reservoir portion configured to reserve the liquid that is supplied to the liquid discharge head,
a liquid injection portion configured to allow a liquid injection container for injecting the liquid into the reservoir portion to be inserted in the liquid injection portion in a first direction,
a liquid holding unit provided at a position spaced apart from the liquid injection portion and capable of holding the liquid, and
a liquid guide portion configured to guide the liquid from the liquid injection portion to the liquid holding unit in a second direction intersecting with the first direction,
wherein the liquid guide portion includes a first protrusion portion provided so as to surround an outer surface of the liquid injection portion,
wherein the first protrusion portion includes a first opening portion on at least a part of a portion that faces the liquid holding unit in the second direction,
wherein the liquid holding unit includes a first liquid holding unit and a second holding unit,
wherein the first liquid holding unit is formed using an absorber capable of absorbing the liquid and provided at a position that faces the first opening portion of the liquid guide portion, and
wherein the second liquid holding unit is provided so as to surround the liquid guide portion therearound and includes a second opening portion on at least a part of a portion that faces the first opening portion of the liquid guide portion.

2. The liquid discharge apparatus according to claim 1 , wherein the liquid guide portion includes the outer surface of the liquid injection portion.

3. The liquid discharge apparatus according to claim 1 , wherein the liquid storage container includes a second protrusion portion extending from the liquid injection portion toward the liquid holding unit via the first opening portion, and the liquid guide portion includes the second protrusion portion.

4. The liquid discharge apparatus according to claim 1 , wherein the second opening portion is in contact with the first liquid holding unit.

5. The liquid discharge apparatus according to claim 1 , wherein the second liquid holding unit includes a protrusion portion provided in a shape surrounding the liquid guide portion.

6. The liquid discharge apparatus according to claim 1 , wherein the second liquid holding unit includes a groove portion provided in a shape surrounding the liquid guide portion.

7. The liquid discharge apparatus according to claim 1 , wherein the liquid guide portion includes the first protrusion portion and a part of a side surface forming the reservoir portion.

8. The liquid discharge apparatus according to claim 7 ,
wherein at least one side surface of the reservoir portion is formed with a film, and
wherein the part of the side surface forming the reservoir portion that is included in the liquid guide portion is the at least one side surface formed with the film.

9. The liquid discharge apparatus according to claim 1 , wherein the liquid guide portion includes a surface having a microstructured uneven shape.

10. The liquid discharge apparatus according to claim 1 , wherein the liquid is ink containing a color material, and the liquid discharge head is a recording head configured to record an image onto the medium on which the liquid is discharged.

11. A liquid storage container comprising:
a reservoir portion configured to reserve liquid that is supplied to a liquid discharge head configured to discharge the liquid onto a medium;
a liquid injection portion configured to allow a liquid injection container for injecting the liquid into the reservoir portion to be inserted in the liquid injection portion in a first direction;
a liquid holding unit provided at a position spaced apart from the liquid injection portion and capable of holding the liquid; and
a liquid guide portion configured to guide the liquid from a liquid injection portion side to the liquid holding unit in a second direction intersecting with the first direction,
wherein the liquid guide portion includes a first protrusion portion provided so as to surround an outer surface of the liquid injection portion,
wherein the first protrusion includes a first opening portion on at least a part of a portion that faces the liquid holding unit in the second direction,
wherein the liquid holding unit includes a first liquid holding unit and a second liquid holding unit,
wherein the first liquid holding unit is formed using an absorber capable of absorbing the liquid and provided at a position that faces the first opening portion of the liquid guide portion in the second direction, and
wherein the second holding unit is provided so as to surround the liquid guide portion therearound and includes a second opening portion on at least a part of a portion that faces the first opening portion of the liquid guide portion.

Assignees

• Canon Kk

Inventors

• Tomie Mineyoshi
• Matsumura Hideaki
• Mori Yuri
• Takenaga Ken
• Takeda Daiju
• Shimada Koki
• Saeki Tsuyoshi
• Asada Shota
• Tsutsumi Hiromasa

Classifications

• B41J2/17509 Primary

  Whilst mounted in the printer · CPC title

• B41J2/17513

  Inner structure · CPC title

• B41J2/135

  Nozzles · CPC title

• B41J2/175 Primary

  Ink supply systems {; Circuit parts therefor} · CPC title

• B41J2002/17516

  comprising a collapsible ink holder, e.g. a flexible bag · CPC title