| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve problems that, in a highly integrated printing head forming an image with continuously ejected ink droplets, there are disadvantages of a high cost for a control circuit and wirings due to a large number of the wirings for charging electrode, a difficulty for ensuring electrical insulation between the wirings having a narrow pitch and a high density resulting from high voltage, and an induced voltage in the wirings due to the mutual induction therebetween. <P>SOLUTION: In the printing apparatus, a plurality of nozzles are divide into a plurality of groups, a phase of droplet forming vibration is shifted to each other between the groups, and charging electrodes corresponding to nozzles of different groups are connected to be controlled with a common wiring. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
