Laminated Composite for Trailing Cathode in an Electrolytic Print Head
Original Publication Date: 1984-Dec-01
Included in the Prior Art Database: 2005-Feb-06
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.