Patent ID: 8748319

Claim:
A method of printing a material on a surface of a substrate, comprising depositing a first print layer on the surface of the substrate using a first printing head of a printing apparatus, wherein the deposited first print layer forms a plurality of first print tracks in a first printing pattern on the surface of the substrate; depositing a second print layer over at least a portion of a surface of the first print layer; wherein the first print layer comprises a first print material comprising a conductive material and a vitrifiable frit material, and wherein the second print layer comprises a second print material comprising a conductive material; detecting positions of the first print layer and the second print layer on the surface of the substrate using a detection device; storing information on the detected positions of the first print layer and the second print layer within a control unit; and comparing the positions of the first print layer and the second print layer on the surface of the substrate using the control unit.