| 摘要 |
PROBLEM TO BE SOLVED: To restrain a temperature of a print head from increasing.SOLUTION: A printer includes a print head discharging ink droplets by relatively moving with respect to a printing medium. The print head has a first nozzle set constituted of one nozzle or two or more nozzles lining up in a prescribed direction, a second nozzle set constituted of one nozzle or two or more nozzles lining up in a prescribed direction, adjacent to the first nozzle set along the prescribed direction and forming nozzle rows together with the first nozzle set, a first cooling medium channel arranged on one first side from among two sides located with the nozzle rows interposed with respect to the first nozzle set and extended along the nozzle rows, a second cooling medium channel arranged on the second side different from the first side from among two sides with respect to the second nozzle set and extended along the nozzle rows, and a third cooling medium channel arranged across the nozzle rows and connecting the first cooling medium channel and the second cooling medium channel. |
