| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet printer in which variation of an exhaust purge amount for every exhaust purge is prevented regardless of a state of a spring member (coil spring). SOLUTION: A communication opening 42C is opened and closed by a valve part 44a via a seal material 44c fitted in a valve rod 44b. The coil spring 45 is set inside a large-diameter hole part 42A of a valve chamber and urges a valve body 44 (valve part 44a) in a direction to block the communication opening 42C. An upper end of the coil spring 45 is fitted in the outside of an engagement projection 27b of an upper case 27 (disposed at a center part of the valve chamber), and a lower end is fitting inserted in a recess 44aa of the valve part 44a upper side. An exhaust inlet part 52 is formed in the periphery of the engagement projection 27b, and one end of the coil spring 45 is made to contact between the exhaust inlet part 52 and the engagement projection 27b. A passage for exhaust (air) from the exhaust inlet part 52 to the communication opening 42C is formed at the outside of the coil spring 45. COPYRIGHT: (C)2006,JPO&NCIPI |
