| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pressure buffer device which achieves high pressure absorption performance and high reliability at low cost, and to provide a fluid circulation device, an image recording device, and a state detection method of the fluid circulation device.SOLUTION: A pressure buffer device 18 includes: a liquid chamber 24 having an inflow port 24B and an outflow port 24A which allows a liquid to flow in and out; a gas chamber 26 in which a gas is stored; and two elastic films 22a, 22b which separate the liquid chamber from the gas chamber and have pre-set deflection amounts different from each other.</p> |
