Liquid discharge apparatus
AssigneeRicoh Company, Ltd.
InventorRyohta YONETA
Life of this patent
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Abstract
A liquid discharge apparatus includes a plurality of heads configured to discharge a liquid, a supply channel connected to the plurality of heads, the supply channel configured to supply the liquid to the plurality of heads, a collection channel connected to the plurality of heads, the collection channel configured to collect the liquid from the plurality of heads, a supply damper configured to define a deformable wall of the supply channel, a collection damper configured to define a deformable wall of the collection channel, a supply damper chamber facing the supply damper, a collection damper chamber facing the collection damper, a pressure pump configured to apply a pressure to the supply damper chamber, and a depressurize pump configured to apply a negative pressure to the collection damper chamber.
Claims7
A liquid discharge apparatus comprising:
- a plurality of heads configured to discharge a liquid;
- a supply channel connected to the plurality of heads, the supply channel configured to supply the liquid to the plurality of heads;
- a collection channel connected to the plurality of heads, the collection channel configured to collect the liquid from the plurality of heads;
- a supply damper configured to define a deformable wall of the supply channel;
- a collection damper configured to define a deformable wall of the collection channel;
- a supply damper chamber facing the supply damper;
- a collection damper chamber facing the collection damper;
- a pressure pump configured to apply a pressure to the supply damper chamber;
- and
- a depressurize pump configured to apply a negative pressure to the collection damper chamber.
A liquid discharge apparatus comprising:
- a head configured to discharge a liquid;
- a pressure pump configured to apply a pressure to the head;
- and
- a depressurize pump configured to apply a negative pressure to the head,
- wherein the head comprises:
- a plurality of nozzles from which a liquid is discharged;
- a plurality of pressure chambers respectively communicating with the plurality of nozzles;
- a common-supply channel connected to each of the plurality of pressure chambers, the common-supply channel configured to supply the liquid to each of the plurality of pressure chambers;
- a common-collection channel connected to each of the plurality of pressure chambers, the common-collection channel configured to collect the liquid from each of the plurality of pressure chambers;
- a supply damper configured to define a deformable wall of the common-supply channel;
- a collection damper configured to define a deformable wall of the common-collection channel;
- a supply damper chamber facing the supply damper;
- and
- a collection damper chamber facing the collection damper,
- wherein the pressure pump is configured to apply the pressure to the supply damper chamber in the head;
- and
- the depressurize pump is configured to apply the negative pressure to the collection damper chamber in the head.
Dependencies are inferred from the claim text.