| 摘要 |
PROBLEM TO BE SOLVED: To prevent the re-solidification of ink near the ink ejection ports and restrain the leakage of ink caused by the rise of ink chamber pressure by installing a heating device for heating ink adhered to the interior of an ink chamber and driving the heating device after the completion of printing so as to heat the interior of the ink chamber. SOLUTION: Solid or liquid ink 3 is housed in the interior of an ink chamber of a printing head 1, and then a first heating device 2a and a second heating device 2b are arranged each to heat and evaporate ink 3 and heat the interior wall surface of an ink chamber 1. Also, the first and second heating devices are temperature-controlled by a first heating control device 16a and a second heating control device 16b. The second heating device 2b can prevent gaseous ink from solidifying rapidly with the result that solid ink 3 never deposits into, e.g. a cobweb shape in the space within the ink chamber. |
