| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid discharge head which can be corrected so as to reduce a variation of density on a printed matter. SOLUTION: The liquid discharge head includes a plurality of actuator units 21 containing a plurality of actuators 21a, a plurality of liquid pressurizing chambers 10 formed opposite to the plurality of the respective actuators, a plurality of liquid discharge holes 8 connected with the plurality of the respective liquid pressurizing chambers, a manifold 5 for supplying a liquid to the plurality of liquid pressurizing chambers, and an actuator control part for supplying a discharge signal to the plurality of actuators. The plurality of liquid discharge holes 8 are arranged two-dimensionally with equal intervals in one direction, and when there is a region to be printed with a mixture of liquids discharged from the liquid discharge holes opposite to the actuator units 21, voltages of the discharge signal applied to each actuator unit are changed so as to reduce speed difference of liquid drops discharged to the region. COPYRIGHT: (C)2010,JPO&INPIT |
