Liquid ejecting device and head

Patent metadata

Field	Value
Publication number	US-9981477-B2
Application number	US-201615294406-A
Country	US
Kind code	B2
Filing date	Oct 14, 2016
Priority date	Oct 30, 2015
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

There are provided a liquid ejecting device that can efficiently supply liquid inside a liquid containing unit with a simple structure and the liquid containing unit. The present invention is the liquid ejecting device which includes a liquid container, a head that is provided on a carriage and has a liquid containing unit capable of storing liquid thereinside and a liquid ejecting unit, 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. A holding member is arranged inside the liquid containing unit to hold the liquid, and the shortest distance between a supply port opened to an inside of the liquid containing unit and the holding member is 0.1 mm or more and 5.0 mm or less.

First claim

What is claimed is:

1. A liquid ejecting device comprising:
a liquid container constructed to store liquid thereinside;
a head provided on a carriage and including a liquid containing unit constructed to store 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 a holding member is arranged inside the liquid containing unit to hold the liquid stored inside the liquid containing unit,
wherein with respect to a supply port that is opened to an inside of the liquid containing unit and is an entrance to an inside of the liquid containing unit of the liquid supplied from the liquid container, and with respect to a surface facing the supply port of the holding member, a space is provided between the supply port and the surface facing the supply port, and
wherein in the space, the liquid is supplied to the surface from the supply port without touching a side wall.

2. The liquid ejecting device according to claim 1 ,
wherein a shortest distance of the space is 0.1 mm or more and 5.0 mm or less.

3. The liquid ejecting device according to claim 2 , wherein the shortest distance of the space is 0.6 mm or more.

4. The liquid ejecting device according to claim 2 , wherein the shortest distance of the space is 2.2 mm or less.

5. The liquid ejecting device according to claim 1 , wherein the liquid supplied to the surface from the supply port without touching a side wall is in the form of a liquid column.

6. The liquid ejecting device according to claim 1 , wherein surface tension of the liquid is 30 mN/m or more and 40 mN/m or less.

7. The liquid ejecting device according to claim 1 , wherein a diameter of the supply port is 1.0 mm or more and 1.6 mm or less.

8. The liquid ejecting device according to claim 1 , wherein the liquid ejecting device does not have a supply tube that is inserted into the holding member.

9. The liquid ejecting device according to claim 1 , wherein the holding member is a fiber absorber.

10. The liquid ejecting device according to claim 1 , wherein a flow rate of the liquid supplied via the supply port is 0.1 g/min or more and 10.0 g/min or less.

11. The liquid ejecting device according to claim 10 , wherein the flow rate of the liquid supplied via the supply port is 0.4 g/min or more and 6.6 g/min or less.

12. A head including a liquid containing unit constructed to store liquid thereinside and a liquid ejecting unit that ejects liquid, wherein
a holding member is arranged inside the liquid containing unit to hold the liquid stored inside the liquid containing unit,
wherein with respect to a supply port that is opened to an inside of the liquid containing unit and is an entrance to an inside of the liquid containing unit of the liquid supplied from the liquid containing unit, and with respect to a surface facing the supply port of the holding member, a space is provided between the supply port and the surface facing the supply port, and
wherein in the space, the liquid is supplied to the surface from the supply port without touching a side wall.

13. The head according to claim 12 , wherein a shortest distance of the space is 0.1 mm or more and 5.0 mm or less.

14. The head according to claim 13 , wherein a shortest distance of the space is 0.6 mm or more.

15. The head according to claim 13 , wherein a shortest distance of the space is 2.2 mm or less.

16. The head according to claim 12 , wherein a diameter of the supply port is 1.0 mm or more and 1.6 mm or less.

17. The head according to claim 12 , wherein the holding member is a fiber absorber.

18. The head according to claim 12 , wherein surface tension of the liquid is 30 mN/m or more and 40 mN/m or less.

19. The head according to claim 12 , wherein the head does not have a supply tube that is inserted into the holding member.

Assignees

• Canon Kk

Inventors

• Fukuchi Hironori
• Iinuma Keisuke
• Nanjo Tatsuo
• Tsukuda Keiichiro
• Kotaki Yasuo

Classifications

• B41J2/17513

  Inner structure · CPC title

• B41J2/14

  Structure thereof {only for on-demand ink jet heads} · CPC title

• B41J2/17556

  Means for regulating the pressure in the cartridge · CPC title

• B41J2/175 Primary

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

• B41J2/1752

  Mounting within the printer · CPC title