US Patent 7296941 Tape printer and tape creating method

It is intended to provide a tape printer and a tape creating method which can achieve a high degree of accuracy and constant length of printing even when the rotational speed of a DC motor changes due to the increase of a wire-wound resistance value because of the heat generation of the DC motor under the continuous driving and the load change by the replacement of a tape. The print cycle algebra is corrected in each time when a pulse number inputted from the photo sensor reaches a control pulse number. Line printing on the surface tape is performed by means of the thermal head with this print cycle algebra as a print cycle.