Claims
- 1. A multi-nozzle ink jet head having a plurality of nozzles that eject ink, comprising:a head substrate in which are formed said plurality of nozzles and a plurality of pressure chambers; a diaphragm that acts as a common electrode and covers said plurality of pressure chambers; piezoelectric body layers that are provided in correspondence with said pressure chambers on said diaphragm; and individual electrode layers that are provided on said piezoelectric body layers and have individual electrode parts corresponding to said pressure chambers and wiring parts for said individual electrode parts; wherein said plurality of nozzles and said plurality of pressure chambers are arranged in at least two rows, wherein said wiring parts comprise: first wiring parts for first individual electrode parts for a first row; and second wiring parts for second individual electrode parts for a second row and drawn toward a same direction of a drawing direction as said first wiring parts, and wherein said diaphragm for the two rows is provided in a region other than a region of said first and second wiring parts.
- 2. The multi-nozzle ink jet head according to claim 1, wherein an insulating layer is provided in the region of said wiring parts in the same layer position as said diaphragm.
- 3. The multi-nozzle ink jet head according to claim 1, wherein each of said second wiring parts is provided between said individual electrodes connected to said first wiring parts.
- 4. The multi-nozzle ink jet head according to claim 1, further comprising a plurality of terminals for said first and second wiring parts provided in a peripheral portion of said substrate.
- 5. The multi-nozzle ink jet head according to claim 1, further comprising a common ink channel connected to a plurality of said pressure chambers and provided between a plurality of first said pressure chambers for said first row and a plurality of second said pressure chambers for said second row.
Parent Case Info
This application is a continuation of international application PCT/JP00/02138, filed on Mar. 31, 2000.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5929881 |
Kitahara et al. |
Jul 1999 |
A |
Foreign Referenced Citations (9)
Number |
Date |
Country |
0800920 |
Oct 1997 |
EP |
7-290703 |
Nov 1995 |
JP |
11-70653 |
Mar 1999 |
JP |
11-70654 |
Mar 1999 |
JP |
11-91100 |
Apr 1999 |
JP |
11-157070 |
Jun 1999 |
JP |
2000-37868 |
Feb 2000 |
JP |
2000-52555 |
Feb 2000 |
JP |
2000-168072 |
Jun 2000 |
JP |
Continuations (1)
|
Number |
Date |
Country |
Parent |
PCT/JP00/02138 |
Mar 2000 |
US |
Child |
10/259611 |
|
US |