| 摘要 |
PROBLEM TO BE SOLVED: To respectively improve range and accuracy of gradation and to contrive to make multinozzles by providing a means for generating a meniscus- generating amplication pulse in a specified period and a means for generating an ink-jetting application pulse in accordance with an expressed gradation in a specified timing. SOLUTION: A recording head 10 is connected to a control part 20 through each driver 113 and 116. By the way, the recording head 10 is provided with a base sheet 11 wherein a heat generating element 13 being an energy source for jetting ink drops on a supporting base stage 19, an output hole 12A for the ink drops, a common liq. room 14 and a top board 15 with a channel on which a nozzle 12 is integrally formed. In addition, by providing oscillation to the common liq. room 14 from a piezoelectric element 16, the position of meniscus formed by the surface tension of the ink is changed in the nozzle 12A. In this case, a pulse with a predetermined period is applied on the piezoelectric element 16 by the control part 20 and by changing the timing of loading of a pulse applied on the heat generating element 13, the amt. of the ink jetted from the output hole 12A is changed. |
