What is a printed signature?

I have never seen a "printed" signature as a substitute for a written one, but both should be equally legal and effective IF that was the apparent intent of the person who did the signing. The same thing applies to a person who is illiterate and cannot print or write, but who can scribble some kind of mark or symbol. That "mark" is legally effective as his or her "signature" if that's how he or she intended it. The same thing applies for stamped signatures or computer-generated signatures. Intent is what controls, and intent is usually proven by the circumstances and the custom in that industry or the habit of those people involved.