To obtain a method for fixing a tube to a hole in the body through a tube jointing member in which the tube and the tube jointing member can be assembled with no gap by setting the diameter of a tube insertion hole in the tube jointing member smaller than the outside diameter of the tube.

In an ink jet recorder employing a tube for carrying a liquid or gas medium, a tube jointing member 2 is boded through an adhesive to a hole 1a in the body 1 and a tube 4 is inserted into a hole 2a of the tube jointing member 2 and fixed in place. The tube 4 is made of vinyl chloride or a metallic material, e.g. copper, which is at least as hard as the tube jointing member 2. At the time of jointing tubes, the tube 4 is inserted in the direction of arrow A under a state where the jointing member 2 is boded to the hole 1a in the body 1 in order to enlarge the inside diameter of the hole 2a equal to the the outside diameter of the tube 4 thus fixing the tube tightly.