N.C. Gen. Stat. § 10B-35: Official signature.

When notarizing a paper record, a notary shall sign by hand in ink on the notarial certificate. The notary shall comply with the requirements of G.S. 10B-20(b)(1) and (b)(2). The notary shall affix the official signature only after the notarial act is performed. The notary shall not sign a paper record using the facsimile stamp or an electronic or other printing method. (2005-391, s. 4; 2006-59, s. 15.)