Liquid supply system, fluid communicating structure, ink supply system, and inkjet recording head utilizing the fluid communicating structure

摘要

A liquid (ink) supply system having a closed structure with respect to an inkjet recording head is configured such that a gas hindering a recording operation and a liquid supply operation can be rapidly and smoothly eliminated from a liquid supply system without involving any complication in structure. An ink tank ( 10 ) and a liquid chamber ( 50 ) for leading ink supplied to the recording head ( 20 ) are brought into fluid communication via two communication channels ( 53 and 54 ). Thus, in the state where the gas exists inside the liquid chamber, the ink is moved from the ink tank ( 10 ) via one communication channel ( 53 ), while the gas is transferred to the ink tank ( 10 ) via the other communication channel ( 54 ).