| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the change of the carrying distance of a paper sheet to be printed even in the case of the reduced diameter of a platen roller due to a secular change, and prevent the slippage of an actual printing position to a position designated by a format, even in the case of printing on the paper sheet of a routine format. SOLUTION: This printer is composed of a motor control part 12 for feeding a pulse to a stepping motor 11 to control a rotation angle, a number of pulse count part 13 for counting the number of pulses fed to the motor 11 during a paper sheet is carried in a predetermined moving distance by a detected signal from a photosensor 4, and the number-of-pulse designation part 14 for designating the number of pulses in carrying the paper sheet at one dot line part, relative to the control part 12; and the designation part 14 corrects the number of pulses to be designated to the control part 12 based on the number of pulses counted in the counting part 13.
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