Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1990-12-03
1993-10-19
Fuller, Benjamin R.
Recorders
Markers and/or driving means therefor
With ink supply to marker
205 75, B41J 216, C25D 108
Patent
active
052550176
ABSTRACT:
A process of forming a mandrel for manufacturing inkjet orifice plates and the like includes the steps of providing an electrically-conductive layer on a substrate, providing a pattern of electrically conductive surfaces on the conductive layer, and surface treating the pattern of conductive surfaces to reduce adhesion of a subsequently applied electroplated film to the pattern of conductive surfaces. The mandrel includes a substrate, a pattern of electrically conductive surfaces on the substrate and an oxide layer on the pattern of conductive surfaces for reducing adhesion of an electroplated film to the pattern of conductive surfaces. The pattern of conductive surfaces can be an electro-deposited layer of nickel, and the release means can be a nickel oxide and/or nickel hydroxide film on the layer of nickel.
REFERENCES:
patent: 2870068 (1959-01-01), Schaer
patent: 4528070 (1985-07-01), Gamblin
patent: 4773971 (1988-09-01), Lam et al.
patent: 4801947 (1989-01-01), Lichtenberger et al.
patent: 4954225 (1990-09-01), Bakewell
Database WPIL, Derwart Publications, Ltd., Nov. 1990, abstract.
Gary L. Siewell et al., "The Thinkjet Orifice Plate: A Part With Many Functions", Hewlett-Packard Journal, May 1985, pp. 33-37.
Hue Le et al., "Air-Assisted Ink Jet With Mesa-Shaped Ink-Drop-Forming Orifice", The 4th International Congress on Advances in Non-Impact Printing Technologies, New Orleans LA, Mar. 1988, pp. 223-227.
Bobb Alrick
Fuller Benjamin R.
Hewlett--Packard Company
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