Before embossing raised letters on a target tape which is subjected to embossing of raised letters, written letters are printed based on inputted character information, and also an upside-and-downside identifying information for identifying the upside and the downside of the target tape as seen in the widthwise direction thereof is printed on the target tape. In the emboss-processing section, the upside and the downside of the target tape is detected based on the identifying information. If the target tape is found to have been inserted upside down, the raised letters are embossed in a state of turning the embossing data by 180 degrees.