| 摘要 |
PROBLEM TO BE SOLVED: To achieve cost reduction by improving production efficiency. SOLUTION: The liquid injection head includes: a head chip 21 having a plurality of channels formed in parallel at intervals, a driving electrode formed on a channel side wall, and nozzle holes formed to communicate with the channels; a temperature sensor 50 disposed in or near the head chip 21 to detect a liquid temperature in the head chip 21; and a control means 23 including a driving circuit substrate 26 having a driving circuit 25 mounted thereon, a flexible printed board 27 having a signal line 28 formed thereon, and a driving voltage value setting means 60 for determining a magnitude of a driving voltage based on the detection value of the temperature sensor 50 and for applying the driving voltage determined by the driving voltage value setting means 60 from the driving circuit 26 through the signal line 28. The flexible printed board 27 includes a connection wiring 29 formed to electrically interconnect the temperature sensor 50 and the driving voltage value setting means 60. COPYRIGHT: (C)2010,JPO&INPIT
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