| 摘要 |
PURPOSE:To efficiently supply a small quantity of heat in a short time to ink requiring a temperature control. CONSTITUTION:Ink is supplied from an ink flow path 3 to a pressure chamber surrounded by walls 14, 14, 14... and a vibrating plate 4. Ink drops are delivered from nozzle openings 2, 2, 2... by expanding and shrinking vibrators 9. A contact part 13 directly coming into contact with the ink in the ink flow path 3 is made of a member having a high thermal conductivity. A support member 7 is made of a member having a low thermal conductivity. In this manner, a supplied quantity of heat can be efficiently used for the temperature increase of the ink. Thus, a warming-up time can be shortened, and a quantity of heat to be supplied can be reduced. |
