To prevent adherence of dust after pattern printing on an object to which a pattern is transferred thereby to keep electroconductivity of the electrode good after baking of a coating film.

The printing ink 11 is charged on a printing plate 10 having a concave pattern 10a, subsequently transferred to a printing blanket 13 having a silicone sheet 13a on the surface thereof, further transferred from the printing blanket 13 to an object 14 to which the pattern is transferred, dried by heat, cured and then baked. The printing ink 11 comprises a powder component constituted of an inorganic powder and glass frit, a thermosetting one-pack resin component comprised of a mixture of a synthetic resin with a thermosetting agent, and a solvent component.