| 摘要 |
PROBLEM TO BE SOLVED: To supply a bubbling liquid to a liquid channel while regulating the temperature thereof and to cool a head with the bubbling liquid. SOLUTION: A bubbling liquid is supplied from a thermostatic circulator 123 to the second liquid channels of respective ink jet heads 92Y, 92M, 92C and 92K and circulated through second liquid branch supply pipes 91a, 91b, a common drain path 93, a common introduction path, a jet side supply pipe and a suction side supply pipe 124. |
