Thin film and thick film heater and control architecture for a liquid drop ejector
US7445315B2 · kind B2 · utility
1Cited by
27References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2004 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Apr 10, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1631
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid drop ejector comprising a jet stack, thin film or thick film heaters formed on the surface of the jet stack, and at least one thin film or thick film temperature sensor operative to provide feedback temperature control for the thin film or thick film heater elements is provided. In one form, the liquid drop ejector also has the thin film or thick film heater elements grouped in segments that are operative to be individually controlled. In addition, in another form, the signal lines provided to the liquid drop ejector are patterned to allow for more uniform resistance over the span of the liquid drop ejector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.