Monolithic ink-jet printhead having an ink chamber defined by a barrier wall and manufacturing method thereof
US6984024B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Nov 26, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A monolithic ink-jet printhead includes a substrate having an ink chamber to be filled with ink to be ejected on a front surface, a manifold for supplying ink to the ink chamber on a rear surface, and an ink channel communicating between the ink chamber and the manifold, a barrier wall formed on the front surface of the substrate to a predetermined depth and defining at least a portion of the ink chamber in a width-wise direction, a nozzle plate including a plurality of material layers stacked on the substrate and having a nozzle penetrating the nozzle plate, so that ink ejected from the ink chamber is ejected through the nozzle, a heater formed between adjacent material layers and located above the ink chamber for heating ink to be supplied within the ink chamber; and a conductor for providing current across the heater being provided between adjacent material layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.