Importance

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Abstract

An ink-jet printer 100, 101, 102 including a printing part 1 that is provided with a plurality of printing heads 10 and a distribution tank 11, a buffer tank 2, a heat exchanger 3, a manifold 4, a main flow pipe that successively connects the buffer tank 2, the heat exchanger 3 and the manifold 4 to one another, a sub-flow pipe that connects the manifold 4 and the buffer tank 2 with each other, a supply flow pipe for connecting the manifold 4 and the printing part 1 with each other, a collection flow pipe for connecting the printing part 1 and the buffer tank with each other, and pumps P respectively installed on the sub-flow pipe, the supply flow pipe and the collection flow pipe, wherein the main flow pipe and the sub-flow pipe constitute a first circulation flow passage for circulating ink, and the main flow pipe, the supply flow pipe and the collection flow pipe constitute a second circulation flow passage for circulating the ink.

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First Claim