| 摘要 |
PROBLEM TO BE SOLVED: To obtain an ink supply unit capable of absorbing a pressure variation in an ink tank and supplying ink stably. SOLUTION: The ink supply unit 1 comprising an ink tank 2 for containing ink is provided with a moving wall 3 for varying the volume of the ink tank 2 depending on the state change of a matter contained in the ink tank 2 due to variation in the external environment of the ink tank 2. Furthermore, a first filter 4 for suppressing pressure variation in the ink tank 2 due to ink consumption by supplying outer air into the ink tank 2 is provided. COPYRIGHT: (C)2005,JPO&NCIPI |
