Patent ID: 7212222
Filing Date: 2007-05-01
Classification: B41J

Abstract:
1. A thermal head for recording an image on a recording material, said thermal head including a heating element array with a line of a plurality of heating elements, each of said heating element comprising: a first electrode layer formed on an insulation substrate; a second electrode layer formed in the position opposite to said first electrode layer; a first insulation layer formed on said first electrode layer to expose both ends of said first electrode layer in a transporting direction of said recording material; a third electrode layer formed on said first insulation layer to expose both ends of said first insulation layer in said transporting direction; a heating resistor layer formed across said first electrode layer, said second electrode layer, said third electrode layer, and said first insulation layer; and at least one protective layer formed covering said first electrode layer, said second electrode layer, said third electrode layer, said first insulation layer, and said heating resistor layer.