| 摘要 |
PROBLEM TO BE SOLVED: To contrive a speed increase and an image-quality enhancement of recording by varying a current value to a recording element and adjusting an injection energy to the recording element at an inkjet recording head. SOLUTION: In relation to the inkjet recording head of a constant current driving system which supplies a constant current to a heater, a current regulating circuit is set inside a head substrate. The current value is varied by a logic signal (digital signal or the like) supplied from the outside of the recording head. An energy according to the current value is injected to the recording element by a corresponding constant current source for every group. COPYRIGHT: (C)2006,JPO&NCIPI
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