| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that a metal layer becomes a positive potential to ink and is eluted when a pin hole is generated in an insulation layer by an influence of a cavitation, etc. in a liquid discharge head having a metal layer made of a metal material as a cavitation resistant layer of an energy generating element. <P>SOLUTION: The energy generating element is driven so that a potential applied to the metal layer is more negative potential than an ink potential even when the pin hole is generated in the insulation layer by the influence of the cavitation, etc. <P>COPYRIGHT: (C)2012,JPO&INPIT |
