摘要:
Use conditions information that is stored in a USB memory is decrypted. In a case where a sewing machine corresponds to the use conditions information, a use history data table that is stored in the USB memory is decrypted (Step S47). A determination is made as to whether first individual unit information that matches first individual unit information for the sewing machine is present in first individual unit information that is stored in the use history data table (Steps S49 and S50). In a case where the matching first individual unit information is not present (NO at Step S50), if the number of the first individual unit information records that are stored in the use history data table is less than a specified number (YES at Step S51), embroidery information is decrypted (Step S55), and embroidery sewing is performed (Step S60).