Liquid ejection apparatus and liquid storage device
AssigneeSeiko Epson Corporation
InventorMasahiko Yoshida
Life of this patent
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Abstract
A liquid ejection apparatus includes a storage container configured to store a liquid, a reference electrode, a first electrode, a second electrode, an output unit configured to output an output signal corresponding to electric signals from the first electrode and the second electrode, and an identification unit configured to identify a remaining amount of the liquid, wherein the first electrode has contact with the liquid stored, the second electrode has contact with the liquid stored, the reference electrode has contact with the liquid stored, and a resistance value of a first wiring path from the first electrode to the output unit is higher than a resistance value of a second wiring path from the second electrode to the output unit.
Claims12
A liquid ejection apparatus comprising:
- a storage container configured to store a liquid having conductivity;
- a reference electrode housed in the storage container;
- a first electrode housed in the storage container;
- a second electrode housed in the storage container;
- an output unit which is electrically coupled to the first electrode and the second electrode, and is configured to output an output signal corresponding to electric signals from the first electrode and the second electrode;
- and
- an identification unit configured to identify a remaining amount of the liquid stored in the storage container based on the output signal, wherein
- the first electrode has contact with the liquid stored in the storage container when the liquid equal to or more than a first amount is stored in the storage container,
- the second electrode has contact with the liquid stored in the storage container when the liquid equal to or more than a second amount larger than the first amount is stored in the storage container,
- the reference electrode has contact with the liquid stored in the storage container when the liquid equal to the first amount is stored in the storage container, and
- a resistance value of a first wiring path from the first electrode to the output unit is higher than resistance value of a second wiring path from the second electrode to the output unit.
A liquid storage device comprising:
- a storage container configured to store a liquid having conductivity;
- a reference electrode housed in the storage container;
- a first electrode housed in the storage container;
- a second electrode housed in the storage container;
- and
- an output unit which is electrically coupled to the first electrode and the second electrode, and is configured to output an output signal corresponding to electric signals from the first electrode and the second electrode, wherein
- the first electrode has contact with the liquid stored in the storage container when the liquid equal to or more than a first amount is stored in the storage container,
- the second electrode has contact with the liquid stored in the storage container when the liquid equal to or more than a second amount larger than the first amount is stored in the storage container,
- the reference electrode has contact with the liquid stored in the storage container when the liquid equal to the first amount is stored in the storage container, and
- a resistance value of a first wiring path from the first electrode to the output unit is higher than a resistance value of a second wiring path from the second electrode to the output unit.
Dependencies are inferred from the claim text.