IP Library › Patent Application 15469774
Patent Application
App. No. 15/469,774

LIQUID CIRCULATION APPARATUS, LIQUID EJECTION APPARATUS AND LIQUID EJECTION METHOD

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Quick Facts
Patent No.
US None
App. No.
15/469,774
Abstract

In accordance with an embodiment, a liquid circulation apparatus comprises a liquid chamber configured to hold liquid which is to be supplied to a liquid ejection section ejecting liquid, a circulation section configured to circulate the liquid between the liquid chamber and the liquid ejection section, a liquid replenishment section configured to replenish liquid to the liquid chamber, a gas replenishment section configured to replenish gas to the liquid chamber, a pressure detection section configured to detect pressure of the liquid chamber, and a control section configured to adjust pressure of the liquid ejection section by replenishing the liquid to the liquid chamber with the liquid replenishment section and replenishing the gas to the liquid chamber with the gas replenishment section.

Claims (32)

1 . (canceled)

2 . A liquid circulation apparatus, comprising:

a casing configured to form a liquid chamber configured to hold liquid which is to be supplied to a liquid ejection section ejecting liquid and connected to the liquid ejection section in a manner capable of circulating the liquid between the liquid chamber and the liquid ejection section;

a liquid replenishment section configured to replenish liquid to the casing; and

a gas replenishment section configured to replenish gas to the casing,

wherein pressure in the casing is added by replenishing the liquid to the casing with the liquid replenishment section and replenishing the gas to the casing with the gas replenishment section.

3 . The liquid circulation apparatus according to claim 2 , wherein the gas replenishment section can discharge the gas in the liquid chamber, and adjusts the pressure in the casing by replenishing the liquid, replenishing the gas and discharging the gas.

4 . The liquid circulation apparatus according to claim 2 , comprising: a pressure detection section configured to detect the pressure in the casing; and a control section configured to control the gas replenishment section based on the pressure of the liquid chamber detected at the pressure detection section.

5 . The liquid circulation apparatus according to claim 3 , comprising: a pressure detection section configured to detect the pressure in the casing; and a control section configured to control the gas replenishment section based on the pressure of the liquid chamber detected at the pressure detection section.

6 . The liquid circulation apparatus according to claim 2 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

7 . The liquid circulation apparatus according to claim 3 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

8 . The liquid circulation apparatus according to claim 4 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

9 . The liquid circulation apparatus according to claim 5 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

10 . The liquid circulation apparatus according to claim 2 , wherein the casing forms a collection chamber collecting the liquid from the liquid ejection section, and a supply chamber supplying the liquid to the liquid ejection section.

11 . The liquid circulation apparatus according to claim 2 , wherein the casing is arranged above the liquid ejection section to be integral with the liquid ejection section.

12 . A liquid ejection apparatus, comprising:

the liquid circulation apparatus which comprises:

a casing configured to form a liquid chamber configured to hold liquid which is to be supplied to a liquid ejection section ejecting liquid and connected to the liquid ejection section in a manner capable of circulating the liquid between the liquid chamber and the liquid ejection section;

a liquid replenishment section configured to replenish liquid to the casing; and

a gas replenishment section configured to replenish gas to the casing,

wherein pressure in the casing is added by replenishing the liquid to the casing with the liquid replenishment section and replenishing the gas to the casing with the gas replenishment section;

a liquid ejection section configured to comprise a nozzle which ejects liquid; and

a circulation section configured to circulate the liquid.

13 . The liquid ejection apparatus according to claim 12 , wherein the gas replenishment section can discharge the gas in the liquid chamber, and adjusts the pressure in the casing by replenishing the liquid, replenishing the gas and discharging the gas.

14 . The liquid ejection apparatus according to claim 12 , comprising: a pressure detection section configured to detect the pressure in the casing; and a control section configured to control the gas replenishment section based on the pressure of the liquid chamber detected at the pressure detection section.

15 . The liquid ejection apparatus according to claim 12 , comprising: a pressure detection section configured to detect the pressure in the casing; and a control section configured to control the gas replenishment section based on the pressure of the liquid chamber detected at the pressure detection section.

16 . The liquid ejection apparatus according to claim 12 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

17 . The liquid ejection apparatus according to claim 13 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

18 . The liquid ejection apparatus according to claim 14 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

19 . The liquid ejection apparatus according to claim 15 , wherein the pressure in the casing is adjusted by replenishing the liquid by the liquid replenishment section after replenishing the gas by the gas replenishment section.

20 . The liquid ejection apparatus according to claim 12 , wherein the casing forms a collection chamber collecting the liquid from the liquid ejection section, and a supply chamber supplying the liquid to the liquid ejection section.

21 . The liquid ejection apparatus according to claim 12 , wherein the casing is arranged above the liquid ejection section to be integral with the liquid ejection section.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2017
From: ISHIKAWA, HIROYUKI
To: TOSHIBA TEC KABUSHIKI KAISHA
Reel/Frame 041750/0059 →