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US 12,752,531 B2Granted
Liquid discharge head and liquid discharge apparatus
AssigneeRicoh Company, Ltd.
InventorRyohta Matsufuji
Life of this patent
Estimating the term…
Abstract
A liquid discharge head includes a nozzle member having a nozzle, a valve to open and close the nozzle, a driver to drive the valve, a diaphragm between the valve and the driver, and a housing. The diaphragm vibrates in response to driving of the driver. The housing holds the nozzle member, the valve, the driver, and the diaphragm. The diaphragm has a thin film portion that is not held by the housing, and the thin film portion is thinner than a portion of the diaphragm held by the housing.
Claims13
A liquid discharge head comprising:
- a nozzle structure including a nozzle;
- a valve to open and close the nozzle;
- a driver to drive the valve;
- a diaphragm between the valve and the driver, the diaphragm to vibrate in response to driving of the driver;
- and
- a housing holding the nozzle structure, the valve, the driver, and the diaphragm,
- wherein the diaphragm has a thin film portion that is not held by the housing, and the thin film portion is thinner than a portion of the diaphragm held by the housing,
- the thin film portion is disposed around a portion of the diaphragm which is in contact with the driver, and
- the portion of the diaphragm which is in contact with the driver is an island-shaped portion that is a same thickness as the portion of the diaphragm held by the housing and is secured to the driver.
6 more elements
A liquid discharge head comprising:
- a nozzle structure including a nozzle;
- a valve to open and close the nozzle;
- a driver to drive the valve;
- a diaphragm between the valve and the driver, the diaphragm to vibrate in response to driving of the driver;
- and
- a housing holding the nozzle structure, the valve, the driver, and the diaphragm,
- wherein the diaphragm includes a thin film portion having a thickness of 3 to 20 μm,
- the thin film portion is disposed around a portion of the diaphragm which is in contact with the driver, and
- the portion of the diaphragm which is in contact with the driver is an island-shaped portion that is a same thickness as a portion of the diaphragm held by the housing and is secured to the driver.
6 more elements
Dependencies are inferred from the claim text.