INK CIRCULATION DEVICE, INKJET PRINTER INCLUDING THE SAME, AND INK CIRCULATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide an ink circulation device, an inkjet printer including the ink circulation device, and an ink circulation method.;SOLUTION: The ink circulation device includes: an ink supply section; an ink supply path to connect between an inkjet print head and the ink supply section; an ink recovery section to recover the ink not ejected from the inkjet print head; an ink recovery path to connect between the inkjet print head and the ink recovery section; an ink return path to return the ink lying in the ink recovery section to the ink supply section; and a control section configured to, in the case of supplying the ink to the inkjet print head, make the pressure of the ink supply section higher than that of the ink recovery section, close a first valve provided in the ink return path, open a second valve provided in the ink supply path and a third valve provided in the ink recovery path, on the other hand, in the case of returning the ink from the ink recovery section to the ink supply section, make the pressure of the ink recovery section higher than that of the ink supply section, open the first valve and close the second and third valves.;COPYRIGHT: (C)2012,JPO&INPIT