Patent ID: 9050818
Filing Date: 2015-06-09
Classification: B41J

Abstract:
1. An inkjet recording device comprising: at least one first ink supply system including: a first ink tank configured to store ink; a first ink head configured to eject the ink; a first ink supply path including an upstream end connected to the first ink tank and a downstream end connected to the first ink head, the first ink supply path connecting the first ink tank and the first ink head to each other; a first ink return path including a first end and a second end, both of the first end and the second end being connected to the first ink supply path; and a pump configured to circulate the ink through the first ink supply path and the first ink return path, and three or more second ink supply systems each including: a second ink tank configured to store ink; a second ink head configured to eject the ink; and a second ink supply path including an upstream end connected to the second ink tank and a downstream end connected to the second ink head, the second ink supply path connecting the second ink tank and the second ink head to each other, wherein, each of the second ink supply systems comprises no second ink return path that includes a first end and a second end that are both connected to the second ink supply path, and no pump configured to circulate the ink through the second ink supply path and the second ink return path, wherein, the first ink supply system and the second ink supply systems are arranged between a first position and a second position in a predetermined direction, wherein, the first ink supply system and at least one of the second ink supply systems are arranged between the first position and an intermediate position between the first position and the second position, and wherein, at least two of the second ink supply systems are arranged between the second position and the intermediate position.