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Laminated Composite for Trailing Cathode in an Electrolytic Print Head

IP.com Disclosure Number: IPCOM000044503D
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Pigos, CR Speicher, CG [+details]

Abstract

Fig. 1 shows a platinum - organic print head electrode array which is intended for use in electrolytic printing. As the array is used to effect printing upon a recording medium, the insulation recedes from between the electrodes until a steady-state undercut value of approximately 3 microns is reached for this type of print head. Experience has demonstrated that the undercut must not exceed 3 microns, or print quality degrades below acceptable levels. A further problem encountered with the illustrated print head involves the trailing cathode which is etched in the anode's wake. Etching of the trailing cathode does not stop at a steady-state value for this type of print head, but continues until print quality degradation forces print head replacement.