| 摘要 |
PROBLEM TO BE SOLVED: To provide a printer device that is compact and can change transportation speed of recording paper at low cost without deteriorating printing quality.SOLUTION: The printer device includes: a platen roller for transporting the recording paper; a first pulley connected to a rotary shaft of the platen roller; a motor; a second pulley connected to a rotary shaft of the motor; and a belt mounted to outer peripheries of the first pulley and the second pulley, where a diameter of the first pulley or second pulley is variable.SELECTED DRAWING: Figure 5 |
