| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermal printer which print an image in a fixed position without being affected by the winding diameter of a winding side ink ribbon.SOLUTION: The thermal printer that sequentially thermally transferring color areas of an ink ribbon where color areas of a plurality of colors are repeatedly arranged, has a driving motor 5a winding the ink ribbon 3, a sensor 7 sensing the feed rate of the ink ribbon 3, and a control circuit 9 computing the winding diameter of the winding side ink ribbon 5 on the basis of the feed rate of the ink ribbon 3 during printing, and controlling the driving speed of the driving motor 5a so as to keep the feed rate of the ink ribbon 3 constant on the basis of the winding diameter. The control circuit 9 controls the cueing feed rate of the ink ribbon 3 to keep it constant, on the basis of the winding diameter of the winding side ink ribbon 5 at the cueing action for each color area. |
