Claims
- 1. An ink jet head comprising:a base having a hollow interior; a piezoelectric element configured to separate said hollow interior into an ink pressure generating chamber and an ink reservoir; and a transistor formed opposite the piezoelectric element relative to the ink reservoir, the transistor operating the piezoelectric element, wherein the piezoelectric element has a first hole connecting the ink pressure generating chamber with the reservoir to flow ink.
- 2. The ink jet head according to claim 1, wherein the piezoelectric element comprises:a vibrating plate; a piezoelectric film formed on the vibrating plate; and an electrode formed on the piezoelectric film.
- 3. The ink jet head according to claim 1, wherein the base has a second hole opposite the piezoelectric element relative to the ink pressure generating chamber, the second hole being adapted to discharge ink.
- 4. The ink jet head according to claim 3, wherein the first hole is formed at a position offset from the second hole in a direction perpendicular to a surface of the piezoelectric element so that the first hole does not overlap the second hole.
- 5. The ink jet head according to claim 1, wherein the first hole is formed at a position offset from the transistor in a direction perpendicular to a surface of the piezoelectric element so that the first hole does not overlap the transistor.
- 6. A printer comprising an ink jet head according to claim 1.
- 7. A printer comprising an ink jet head according to claim 2.
- 8. A printer comprising an ink jet head according to claim 3.
- 9. A printer comprising an ink jet head according to claim 4.
- 10. A printer comprising an ink jet head according to claim 5.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9-11724 |
Jan 1997 |
JP |
|
Parent Case Info
This application is a division of 09/010,622 filed Jan. 22, 1998 now U.S. Pat. No. 6,186,618.
US Referenced Citations (12)
Foreign Referenced Citations (5)
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08-118661 |
May 1996 |
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09-174859 |
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