| 摘要 |
PROBLEM TO BE SOLVED: To ensure clear print by improving ink ejection from a nozzle provided for each pressurizing chamber. SOLUTION: A loop channel 6' is coupled with the a common channel 5 extending from an ink reservoir 4 at the forward end thereof. The loop channel 6' is also coupled with a loop channel 6 extending in parallel with the common channel 5 and coupled, on the root side thereof, with the ink reservoir 4. A suction path 10 is branched from the loop channel 6. At the time of initial filling of ink, the suction path 10 is coupled with a pump 103 and ink in the ink reservoir 4 is spread over the common channel 5 and the loop channels 6, 6'. Subsequently, the pump 103 can be uncoupled.
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