| 摘要 |
PURPOSE:To shorten time to be elapsed between supply of a sheet and discharge of the sheet by connecting a flyback diode between a connecting point to a switching element and a power source at the time of printing and connecting a series circuit of the diode and a constant-voltage diode at the time of nonprinting. CONSTITUTION:A power source +B is connected to the first movable terminal (b) of a switch SW, and a Zener diode Z is connected to a second movable terminal (c). The switch SW is connected to the terminal (b) at the time of printing, and the switch SW is connected to the terminal (c) at the time of nonprinting including supply of a sheet, discharge of the sheet. As a result, a diode suppressor is composed at the time of printing to suitably brake a stepping motor. Accordingly, a printed image is not formed with a lateral fringe. A Zener diode suppressor is composed at the time of nonprinting to accelerate rotation of the motor. |
