Liquid discharge head, liquid discharge device, and liquid discharge apparatus
AssigneeRicoh Company, Ltd.
InventorsYukio OTOME, Takayuki NAKAI
Life of this patent
Estimating the term…
Abstract
A liquid discharge head includes a nozzle to discharge a liquid, a pressure generation chamber facing the nozzle, a common liquid chamber to supply the liquid to the pressure generation chamber, a fluid restrictor communicating with the pressure generation chamber, and a guide channel communicating with the fluid restrictor and the common liquid chamber. The guide channel includes a first adjacent portion communicating with the fluid restrictor. The pressure generation chamber has a first resonance period, and the guide channel has a second resonance period different from the first resonance period.
Claims8
A liquid discharge head comprising:
- a nozzle configured to discharge a liquid;
- a pressure generation chamber facing the nozzle, the pressure generation chamber having a resonance period Tcp;
- a common liquid chamber configured to supply the liquid to the pressure generation chamber;
- a fluid restrictor communicating with the pressure generation chamber;
- and
- a guide channel communicating with the fluid restrictor and the common liquid chamber and including a first adjacent portion communicating with the fluid restrictor, the first adjacent portion having a resonance period Tcg different from the resonance period Tcp.
A liquid discharge head comprising:
- a nozzle configured to discharge a liquid;
- a pressure generation chamber facing the nozzle, the pressure generation chamber having a resonance period Tcp;
- a common liquid chamber configured to supply the liquid to the pressure generation chamber;
- a fluid restrictor communicating with the pressure generation chamber;
- a guide channel communicating with the fluid restrictor and the common liquid chamber and including a first adjacent portion communicating with the fluid restrictor, the first adjacent portion having a resonance period Tcg different from the resonance period Tcp,
- a collection-side common liquid chamber configured to collect the liquid from the pressure generation chamber;
- a collection-side fluid restrictor communicating with the pressure generation chamber;
- and
- a collection channel communicating with the collection-side fluid restrictor and the collection-side common liquid chamber and including a second adjacent portion communicating with the collection-side fluid restrictor, the second adjacent portion having a resonance period Tcb different from the resonance period Tcp and the resonance period Tcg.
Dependencies are inferred from the claim text.