COUPLED STRUCTURE BETWEEN SHAFT CYLINDERS

PROBLEM TO BE SOLVED: To solve a problem which involves a danger that although compressed air is prevented to the utmost, in the final step of a blocked operation, the inside of an accommodation part is inevitably pressurized, the blocked operation becomes tight, and often, in detachment operation, ink is spouted out though it is an extremely small amount. SOLUTION: A coupled structure between shaft cylinders is configured by mounting an air exchange path on the coupled part. Further, a bag-shaped container the one end of which is opened is mounted on the periphery of the one shaft cylinder and also the coupled structure between the shaft cylinders to which another shaft cylinder is adhered is configured on the circumference part of the opening of the container. COPYRIGHT: (C)2010,JPO&INPIT