Configuration of inkjet head realizing uniform ink ejection performance
US6702432B2 · kind B2 · utility
1Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | May 8, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14274
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet head 100 includes a pair of support plates 17A, 17B and a diaphragm plate 9 interposed between the support plates 17A, 17B. In this configuration, even when adhesion between the diaphragm plate 9 and the support plate 17B is insecure, and when a piezoelectric element 12 deforms a diaphragm 7 toward a pressure chamber 3, that is, in a direction away from the support plate 17B, the support plate 17A prevents the diaphragm plate 9 from peeling off the support plate 17B. Accordingly, the dimension and thus a deforming amount of the diaphragm 7 is maintained uniform, whereby a uniform ink ejection performance is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.