| 摘要 |
Assuming that inertia of ink in a flow passage is M, a viscosity resistance of the ink in the flow passage is R, and a return force of a meniscus in a nozzle when the ink is charged in the flow passage composed of a nozzle (14) and a pressure generating chamber (16), the physical properties of the ink and the shape of the flow passage are set such that a relationship of 0.2 ≤ gamma <2>/ omega <2> ≤ 1.0 is satisfied, where omega = <SQRT>K/M</SQRT> and gamma = R/2M. <IMAGE> |
