Liquid discharge device, testing method, and medium with recorded program
AssigneeSeiko Epson Corporation
InventorsToshiyuki Suzuki, Osamu Shinkawa
Life of this patent
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Abstract
There is provided a technique with which an abnormal discharge state in a discharge component can be determined on the basis of residual vibration. A printer includes a discharge component that discharges ink, a detector that detects residual vibration in the discharge component, and a tester that tests the discharge component on the basis of the change in the period of the residual vibration.
Claims9
A liquid discharge device, comprising:
- a discharge component configured to drive a drive element to discharge a liquid contained in a cavity from a nozzle that communicates with the cavity;
- a detector configured to detect vibration produced by drive of the drive element;
- and
- a tester configured to test the discharge component on the basis of change in a time period of one cycle of the vibration.
A testing method for testing a discharge component that drives a drive element to discharge a liquid contained in a cavity from a nozzle that communicates with the cavity, the method comprising:
- detecting vibration produced by the drive of the drive element;
- and
- testing the discharge component on the basis of change in a time period of one cycle of the vibration.
A medium for recording a program that causes a computer to carry out a function of testing a discharge component that drives a drive element to discharge a liquid contained in a cavity from a nozzle that communicates with the cavity, the medium being readable by a computer that has recorded a program for carrying out:
- a detection function of detecting vibration produced by the drive of the drive element;
- and
- a testing function of testing the discharge component on the basis of change in a time period of one cycle of the vibration.
Dependencies are inferred from the claim text.