| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure circulation of liquid in a waste liquid passage by preventing formation of a liquid film (meniscus) in the waste liquid passage. <P>SOLUTION: A helical structure is provided toward an axial direction of the passage, inside the waste liquid passage in which liquid discharged from the jetting head flows. As a result, the existence of the helical structure prevents the formation of the liquid film in the waste liquid passage. Accordingly, the waste liquid passage is not blocked by the formation of a large number of liquid films in the waste liquid passage and the circulation of the liquid in the waste liquid passage can be secured. <P>COPYRIGHT: (C)2012,JPO&INPIT |
