Disclosed are a person authentication system, a person authentication method, and an information processing apparatus which allow person authentication to be performed in an easy fashion in various devices by comparing a template serving as person identification data with sampling information input by a user. A good weld strength is obtained and parts with different properties can be combined. The first electrode includes at least one non-smooth surface and is formed from a material selected from the group consisting of transition metals, conductive oxides, alloys thereof, and combinations thereof. The printer is operable to retrieve server documents to be printed from the server upon receiving a command from the browser client.