| 摘要 |
PROBLEM TO BE SOLVED: To enable high image quality and high speed printing by lowering an image noise, by executing an ejecting operation with an ink ejection amount at the time of the continuous drive provided larger than that at the time of the discrete drive. SOLUTION: An ejecting operation is executed with an ink ejection amount at the time of the continuous drive provided larger than an ink ejection amount of the discrete drive. Since large dots can be formed so as to cover the total area of a pixel by executing the ink ejection with the meniscus projecting from the nozzle plate surface by a driving cycle of a large projection amount in the continuous drive a solid region of an image can be recorded without omission. In contrast, in the case of an intermittent drive corresponding to a discrete dot arrangement like an image highlight part, since the meniscus is returned to an equilibrium position or at a position close thereto, small dots can be formed so that roughness of an image cannot be recognized visibly. |
