| 摘要 |
PROBLEM TO BE SOLVED: To improve a heat dissipation property of each driver IC and the assembling property of parts making each of the driver ICs dissipate heat, space efficiency and maintainability of an inkjet recording head unit with a plurality of driver ICs. SOLUTION: Many piezoelectric elements provided in a long recording head 32 of the inkjet recording head unit are driven by the driver ICs 80. The driver ICs 80 and heat pipes 90 are provided at a ratio of one to one. The heat pipes 90 are connected to the driver ICs 80 in a state of being able to transmit heat. COPYRIGHT: (C)2007,JPO&INPIT |
