Patent ID: 7182444
Filing Date: 2007-02-27
Classification: B41J

Abstract:
1. An ink jet recording device, comprising: an ink jet recording head; and an ink circulation system which circulates ink by supplying said ink to said ink jet recording head and recovering said ink supplied to said recording head, wherein said ink circulation system comprises: wherein said ink feeding means is provided in said ink tank, and has both a function to supply said ink from said ink tank to said ink jet recording head and a function to stir said ink stored in said ink tank, wherein said ink feeding means comprises a no-sliding type pump having no sliding part and comprising at least one ink suction port immersed in said ink tank and at least two ink discharge ports immersed in said ink tank, and wherein at least one ink discharge port of said at least two ink discharge ports communicates with said ink supplying system to achieve the function to supply said ink to said ink jet recording head and at least one ink discharge port of the other is opening to said ink in said ink tank to achieve the function to stir said ink stored in said ink tank.