Patent ID: 6412916
Filing Date: 2002-07-02
Classification: B41J

Abstract:
An ink jet printer comprising:a recording medium conveying portion; a head portion, the head portion comprising an ink chamber for storing an ink which comprises a solvent and a colorant dispersed therein, an ink circulating portion for circulating the ink from the ink chamber, and an ink ejecting portion having ink ejecting electrodes for ejecting the ink to the recording medium, with the ink being fed to the ink ejecting electrodes from the ink circulating portion, the ink ejecting electrodes ejecting the ink toward counter electrodes opposed to the ink ejecting electrodes under the action of an electrostatic field; and a fixing portion for fixing an image which has been printed on the recording medium by the head portion; wherein the ink chamber is disposed above the ink circulating portion and the ink ejecting portion is disposed below the ink circulating portion; and said ink circulating portion having one ink chamber and another ink chamber, and having a first ink circulating path from said one ink chamber to said another ink chamber and having said ink ejecting electrodes disposed therealong, and having a second ink circulating path for returning the excess ink from said one ink chamber to said another ink chamber.