Ohio Rev. Code Ann. § 9.10

As used in sections 9.10 to 9.14, inclusive, of the Revised Code, "facsimile signature" includes, but is not limited to, the reproduction of any authorized signature by a copper plate or by a photographic, photostatic, or mechanical device, but does not authorize the use of a rubber stamp signature by the official or authorized employee referred to in section 9.11 of the Revised Code on the face of any instrument mentioned in such section.