摘要 |
An ink container (10) has a cylinder (12) provided with an ink discharge port (11) at its leading end and a piston (13) fitted in the cylinder to be slidable along the inner surface of the side wall of the cylinder. Ink is filled into the space defined by the cylinder and the piston. Resistance generated by friction between the cylinder and the piston when the piston is slid toward the ink discharge port with the ink container held empty is not lower than 1.0N. <IMAGE> |