Patent ID: 11964493
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. The liquid ejecting apparatus according to claim 1, wherein
when the filter chamber is defined as a first filter chamber, the upstream chamber is defined as a first upstream chamber, and the downstream chamber is defined as a first downstream chamber, the head unit has the filter, a second filter chamber including a second upstream chamber and a second downstream chamber, which are partitioned by the filter, and a common flow path communicating with the first upstream chamber and the second upstream chamber,
the plurality of nozzles forming the first nozzle group and the plurality of nozzles forming the second nozzle group eject the liquid supplied via the common flow path, and the nozzles forming the second nozzle group communicate with the nozzles forming the first nozzle group via the filter of the second filter chamber, the common flow path, and the filter of the first filter chamber,
the gas introduction unit is configured to introduce the gas into the first filter chamber and the second filter chamber, and
the control unit forms the gas-liquid interfaces in the hole provided in the filter of the first filter chamber and the hole provided in the filter of the second filter chamber by introducing the gas into the first filter chamber and the second filter chamber in the pre-operation.