The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers and a method for doing so. A printing sheet is sucked by the comparatively weak suction force in a degree in which the sheet is tightly contacted with the pore of the platen. The wire entry ports face in opposite directions. The delay element is in a signal path between the scan input and the input of the flip-flop, and provides a signal propagation delay between the scan input and the input of the flip-flop. Coupling of a peptide thioacid and glycosylamine yields a glycosylated peptide.