Patent ID: 9724930
Date: 2017-08-08
CPC Classifications: B41J

Claim:
1. A liquid ejecting apparatus comprising: an ejecting head having ejecting nozzles for ejecting a liquid, the ejecting head including a liquid introducing port that introduces the liquid into the ejecting head; a supply passage communicating with the liquid introducing port, the supply passage supplying the liquid ejected from the ejecting nozzles; a liquid storage unit that stores the liquid supplied to the ejecting head, the liquid storage unit being provided in the supply passage; a connecting passage in fluid communication with a liquid circulating port provided in the ejecting head, the connecting passage forming a circulation passage that circulates the liquid in the ejecting head together with the liquid storage unit and the supply passage; a filter provided in the supply passage at a downstream side from the liquid storage unit; a first check valve provided in the supply passage, the first check valve being configured to prevent liquid flow in a direction toward the supply passage from the ejecting head; and a second check valve provided in the connecting passage, the second check valve being configured to prevent liquid flow in a direction toward the ejecting head from the connecting passage, wherein the liquid ejecting apparatus is configured such that the liquid is circulated to flow in a direction toward the connecting passage from the liquid circulating port and to flow in a direction toward the ejecting head in the supply passage.