Patent ID: 9421784
Filing Date: 2016-08-23
CPC Classification: B41J

Claim Text:
1. A liquid ejecting apparatus that includes liquid ejecting heads ejecting a liquid, comprising: a tank that stores the liquid; a first passage through which the liquid flows from the tank to the liquid ejecting heads; and a second passage through which the liquid flows from the liquid ejecting heads to the tank; wherein the first and second passages define a path along which the liquid flows between the tank and the liquid ejecting heads; wherein the liquid ejecting heads includes a first head and a second head; wherein the first passage includes a third passage connecting to the tank, a fourth passage branching from the third passage at a first position to allow the third passage to communicate with the first head via the fourth passage, and a fifth passage branching from the third passage at a second position to allow the third passage to communicate with the second head via the fifth passage; wherein a passage length from the tank to the first position is shorter than a passage length from the tank to the second position; wherein the fourth passage and the fifth passage are of the same length and cross-sectional area; wherein a cross-sectional area of the third passage is larger than a cross-sectional area of the fourth passage; wherein a passage resistance from the tank to the first position and a passage resistance from the tank to the second position are substantially the same; wherein a passage resistance of the fourth passage is much larger than a passage resistance from the tank to the first position; wherein the second passage includes a sixth passage through which the first head communicates with the tank; and wherein a passage resistance of the sixth passage is greater than a passage resistance from the tank to the first position, and a passage resistance of the fourth passage is at least five times a passage resistance of the sixth passage.