LIQUID-DROP EJECTING APPARATUS AND LIQUID CARTRIDGE
First Claim
1. A liquid-drop ejecting apparatus comprising:
- a liquid-drop ejection head including an ejection portion configured to eject a liquid drop;
a first tank including;
a liquid storage chamber for storing therein a liquid to be supplied to the liquid-drop ejection head;
a gas chamber formed therein;
a communication hole connecting the liquid storage chamber and the gas chamber;
a gas-permeable membrane which covers the communication hole, and by which the liquid storage chamber and the gas chamber is divided; and
a suppression member provided in the gas chamber and configured to contact with the gas-permeable membrane which is deformed to project toward an inside of the gas chamber, so as to suppress the deformation of the gas-permeable membrane;
a second tank for storing therein a liquid to be supplied to the liquid storage chamber in the first tank; and
a negative pressure generation unit configured to generate a negative pressure in the gas chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
A liquid-drop ejecting apparatus comprises: a liquid-drop ejection head, a first tank, a second tank and a negative pressure generation unit. The first tank includes: a liquid storage chamber for storing therein a liquid to be supplied to the liquid-drop ejection head; a gas chamber formed therein; a communication hole connecting the liquid storage chamber and the gas chamber; a gas-permeable membrane which covers the communication hole, and by which the liquid storage chamber and the gas chamber is divided; and a suppression member provided in the gas chamber and configured to contact with the gas-permeable membrane which is deformed to project toward an inside of the gas chamber, so as to suppress the deformation of the gas-permeable membrane. The second tank for storing therein a liquid to be supplied to the liquid storage chamber. The negative pressure generation unit configured to generate a negative pressure in the gas chamber.
58 Citations
19 Claims
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1. A liquid-drop ejecting apparatus comprising:
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a liquid-drop ejection head including an ejection portion configured to eject a liquid drop; a first tank including; a liquid storage chamber for storing therein a liquid to be supplied to the liquid-drop ejection head; a gas chamber formed therein; a communication hole connecting the liquid storage chamber and the gas chamber; a gas-permeable membrane which covers the communication hole, and by which the liquid storage chamber and the gas chamber is divided; and a suppression member provided in the gas chamber and configured to contact with the gas-permeable membrane which is deformed to project toward an inside of the gas chamber, so as to suppress the deformation of the gas-permeable membrane; a second tank for storing therein a liquid to be supplied to the liquid storage chamber in the first tank; and a negative pressure generation unit configured to generate a negative pressure in the gas chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A liquid-drop ejecting apparatus comprising:
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a liquid-drop ejection head including an ejection portion configured to eject a liquid drop; a first tank including; a liquid storage chamber for storing therein a liquid to be supplied to the liquid-drop ejection head; a gas chamber formed therein; a communication hole connecting the liquid storage and the gas chamber; a gas-permeable membrane which covers the communication hole, and by which the liquid storage chamber and the gas chamber is divided; and a suppression member provided in the gas chamber and faces the gas-permeable membrane, the suppression member being spaced apart from the gas-permeable membrane so as to be contactable to the gas-permeable membrane when the gas-permeable membrane is deformed; a second tank for storing therein a liquid to be supplied to the liquid storage chamber in the first tank; and a negative pressure generation unit configured to generate a negative pressure in the gas chamber.
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15. A liquid cartridge comprising:
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a liquid storage chamber for storing a liquid therein, the liquid chamber being defined by at least an upper wall including an opening; a gas-permeable membrane provided on the upper wall to cover the opening; a gas chamber which communicates with the liquid storage chamber through the gas-permeable membrane; and a suppression member which is provided in the gas chamber, faces the gas-permeable membrane and is spaced apart from the gas-permeable membrane so as to be contactable to the gas-permeable membrane when the gas-permeable membrane is deformed. - View Dependent Claims (16, 17, 18, 19)
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Specification