Patent ID: 8348400
Filing Date: 2013-01-08
Classification: B41J

Abstract:
1. A liquid feeding device for inkjet heads, for feeding a liquid material to a plurality of inkjet heads from an ink tank, the liquid feeding device comprising: separate liquid feed pipe lines for feeding the liquid material, each of which communicates with each of the plurality of inkjet heads; a common liquid feed pipe line for storing one kind of the liquid material and communicating with one ink tank, the common liquid feed pipe line being connected to each of the separate liquid feed pipe lines; separate gas flow pipe lines capable of conveying a gas, each of which is connected to a connection portion between the common liquid feed pipe line and each of the separate liquid feed pipe lines, to each of the inkjet heads, or to both the connection portion and each of the inkjet heads; and a common gas flow pipe line capable of being opened and closed with respect to an atmosphere, wherein the gas within the liquid material that flows from the ink tank to the common liquid feed pipe line is exhausted into atmosphere upon passing from the common liquid feed pipe line to the common gas flow pipe line.