| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet printing apparatus which has no system open to the atmospheric air except a head in order to hold deaeration ink properties of an ink in an ink passage while an ink water level in a main tank is easily adjusted, and performs a large amount of printing by one ink feeding as an industrial printing apparatus. SOLUTION: The inkjet printing apparatus comprises an inkjet head having a plurality of nozzles jetting ink liquid drops in the same direction as the gravity direction, a bag-like main tank feeding the ink to the head and filled with a deaerated ink, an ink feeding pipeline system for feeding the ink to the head from the bag-like main tank, a plurality of ink on-off valve additionally provided on a part of the ink feeding pipeline system, and an ink feeding means extended and arranged in the ink feeding pipeline system. In this inkjet printing apparatus, the ink feeding means for feeding the ink into the bag-like main tank with an ink liquid level measuring means in the bag-like main tank, and an inclined plate for finely adjusting the water level of the ink in the bag-like main tank so as to make the water level of the head always higher by an arbitrary position than the water level of the bag-like main tank, are provided. COPYRIGHT: (C)2005,JPO&NCIPI |
