Electrically grounded inkjet ejector and method for making an electrically grounded inkjet ejector
US8205971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2010 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Dec 18, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet ejector provides electrical conductors for grounding electrically isolated layers in the ejector while electrically coupling a transducer of the ejector to a firing signal circuit. The inkjet ejector includes a diaphragm plate have a first side and a second side, a plurality of transducers mounted to the first side of the diaphragm plate, a polymer layer located on the second side of the diaphragm plate, an electrically conductive layer that is isolated from electrical ground by the polymer layer, and a plurality of electrical conductors, at least one of the electrical conductors extends from the electrically conductive layer to electrical ground through the polymer layer and other electrical conductors of the plurality of electrical conductors extend from each transducer to a firing signal circuit, the electrical conductor extending from the electrically conductive layer being the same material as the other electrical conductors in the plurality of electrical conductors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.