Plastic orifice plate for an ink jet printhead and method of manufacture
US4829319A · kind A · utility
32Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Nov 13, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D1/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A plastic orifice plate for an ink jet printhead and manufacturing process therefor which includes electroforming a metal die having raised sections thereon of predefined center-to-center spacings, and using the die to punch out openings in a plastic substrate of a chosen thickness to form a plurality of closely spaced orifice openings in the substrate. The orifice plate can be of a chosen transparent material and secured to a printhead substrate where the dynamics of ink flow can be viewed through the orifice plate during printhead testing and evaluation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.