Thermal print head with optimum thickness of the thermal insulation under- layer and method of designing the same

摘要

A thermal printing system includes a heating element with an insulation under-layer of optimal thickness. A method for determining the optimal thickness of such insulation under-layer using equations for the transient temperature distribution at the dye donor/image receiver interface is described. These equations account for the printing system parameters which have the most significant impact on the image formation process.