| 摘要 |
PURPOSE:To prevent the discharge failure of liquid drop after being-left for a long time and besides, to enable the high speed stable recording by high repetitive driving frequency, by a method wherein the first heating means is established to a nozzle in addition to a discharge energy generation means and the second heating means is provided for a liquid chamber. CONSTITUTION:A discharge energy generation means 2 and the first heating means 3 are successively arranged from an orifice 30 side in the nozzle 7 of a recording head and the second heating means 4 is established in the liquid chamber 8 at the back of the nozzle 7. When above-mentioned heating means 3 and a discharge energy generation means 2 are operated, vapour bubbles 9 and 10 are generated in the recording liquid of the parts respectively contacting thereto. Therefore, because vapour bubbles 9 are also generated and the discharge energy can be utilized to the high viscous recording liquid after standing for a long time, liquid drop 13 can be discharged. Further, when the vapour bubble 10 is contacted, the liquid drop 13 is formed and the recording liquid starts to be fed. At that time, when the second heating means 4 is made to be of an operation state, a vapour bubble 11 is formed in the recording liquid inside the liquid chamber 8 contacted with said means 4 and the recording liquid is forcedly pushed into the nozzle 30. By this operation, the recording by high repetitive driving frequency can be realized. |
