| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circulation type inkjet apparatus that stably ejects variable ink with high accuracy. <P>SOLUTION: The circulation type inkjet apparatus includes: an inkjet head (7) including an ink inlet, an ink outlet and a nozzle capable of discharging the ink by a microquantity; a first pump (2) for generating a pressure for feeding the ink to the inlet; a second pump (3) for generating a pressure for extracting the ink from the outlet; a flow passage (12) for forming a passage through which the ink circulates the first pump, the inkjet head and the second pump in this order; a first pressure sensor (4) for measuring a pressure of the ink fed to the inlet; and a second pressure sensor (5) for measuring a pressure of the ink extracted from the outlet. <P>COPYRIGHT: (C)2012,JPO&INPIT |
