Patent ID: 8638350
Filing Date: 2014-01-28
Classification: B41J

Abstract:
1. A method of marking a medium, comprising: receiving the medium, in an initially unknown orientation, within an automated marking apparatus comprising a thermal printing system; employing orientation indicators to detect the orientation of the medium; accurately marking two sides of the medium with the automated marking apparatus based on the detected orientation, irrespective of the medium's orientation relative to a heating element of said thermal printing system; wherein the medium comprises a two-sided thermochromic medium having at least one thermochromic area on each side of the medium and a corresponding non-thermochromic area on the opposite side of the medium, wherein the thermochromic areas on each side of the medium are arranged in an exclusionary manner such that actuating an active heating element of said automated marking apparatus does not substantially change the appearance of a thermochromic area on the opposite side of the substrate.