Patent ID: 9522541
Filing Date: 2016-12-20
CPC Classification: B41J

Claim Text:
1. A maintenance method of a liquid ejecting apparatus including: a liquid ejection head ejecting a liquid via nozzles, the liquid ejecting head having a common liquid chamber communicating with the nozzles; a first passage communicating with the common liquid chamber, the first passage being configured to supply the liquid toward the liquid ejection head; a second passage communicating with the first passage, the second passage forming, in cooperation with the first passage, a circulation passage; a valve provided in the first passage to allow and restrict flow of the liquid; a liquid chamber provided in the first passage, part of an inner wall of the liquid chamber being constituted by a flexible member being deformed in accordance with a change of liquid pressure in the circulation passage; and a liquid driving unit provided in the second passage, the liquid driving unit being configured to move the liquid in the circulation passage when driven; the maintenance method comprising: performing a discharging operation to discharge the liquid from the nozzles by the valve restricting flow of the liquid in the first passage, the flow of the liquid being caused by the driven liquid driving unit moving the liquid in a direction from the liquid driving unit toward the liquid ejection head in the second passage.