Patent ID: 7175264
Filing Date: 2007-02-13
Classification: B41J

Abstract:
1. A device for continuously supplying ink under constant pressure, comprising: an ink storage tank having a relatively large ink chamber, said ink chamber having a gas passage connected with the atmosphere; an ink feeding pipe, connecting said ink chamber with a print head; an ink outlet port disposed at the lower part of the ink chamber and connected with said pipe; wherein said ink chamber is separated into a first chamber and a second chamber by a partition, and a gas inlet port provided at the upper part of the first chamber, connects with the atmosphere; wherein the lower part of said partition is provided with a gas-liquid exchange entryway having a first hole that allows gas in the first chamber to enter into said second chamber and a second hole that allows ink liquid in said second chamber to flow into said first chamber; and an ink filling port having a cover provided at the upper part of said first chamber.