| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink jet recording head capable of obtaining a stable ink ejection condition and of recording a gradation image with high quality. SOLUTION: This ink jet recording head 10 comprises an ink cavity 26 which is connected to each of an ink ejection nozzle 28 and an ink inlet 32 for supplying ink and houses ink 24 and a piezoelectric member 42 that pressurizes the ink in the ink cavity 26 and ejects it from the nozzle 28. A ratio of an impedance of the nozzle 28 with that of ink inlet 32 is set in a range of approximately 0.5-6. |
