Method and apparatus for elimination of misdirected satellite drops in thermal ink jet printhead
US5461406A · kind A · utility
12Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Jan 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for ejecting ink droplets from a plurality of nozzles located in the front face of a printhead controls front face geometries to ensure consistent image quality. A front face dicing angle and a thick film insulative layer etchback are controlled to maintain a Spot Aspect Ratio of each of the droplets ejected from the printhead within a predetermined acceptable range. The Spot Aspect Ratio may be maintained by control of an effective meniscus tilt angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.