Piezoelectric inkjet printhead and method of manufacturing the same
US7537319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2006 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14419
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A piezoelectric inkjet printhead, and a method of manufacturing the same, includes an ink inlet for allowing inflow of ink, a plurality of pressure chambers to contain ink to be ejected, the plurality of pressure chambers being in communication with the ink inlet, a manifold formed in communication with the ink inlet, a plurality of restrictors connecting the manifold to respective first ends of the pressure chambers, a plurality of dampers at positions corresponding to respective second ends of the pressure chambers, the second ends being opposite the first ends, a plurality of nozzles in communication with the plurality of dampers for ejecting the ink, a plurality of actuators for applying a driving force to each of the pressure chambers for ejecting the ink, a damping membrane under the manifold for dampening a pressure change inside the manifold and a cavity under the damping membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.