| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid jetting apparatus which performs suction processing while stabilizing negative pressure. SOLUTION: A printer has a tube pump 40 that sucks ink from a recording head by crushing a tube body 41 communicating with hermetically sealed space and advancing along the tube body 41 by a roller body 44 driven to revolve around a predetermined axis so that predetermined negative pressure is applied to the hermetically sealed space. The tube pump 40 includes a leak point X where the crushed amount of the tube body 41 by the roller body 44 becomes insufficient at a part of a revolving path of the roller body 44. The printer includes a controller that controls drive of a motor to allow the roller body 44 to revolve at first speed S1 in a first area D1 where the roller body 44 does not extend over the leak point X in the revolving path, and allow the roller body 44 to revolve at second speed S2 higher than the first speed S1 in a second area D2 where the roller body 44 extends over the leak point X in the revolving path. COPYRIGHT: (C)2011,JPO&INPIT |
