| 摘要 |
<p>Inside a charger for uniformly charging a surface of a photosensitive drum, a wire to which high voltage is applied is stretched. The duration of life of the wire is shorter than that of the photosensitive drum. Therefore, even when other parts are normal, a process cartridge needs to be replaced. In view of this, the charger is removably mounted to the process cartridge, and further, a plurality of wires are arranged inside the charger. Thus, power is selectively fed to the wires depending on the mounting position to the process cartridge. Power is fed only to the selected wire, and hence replacement with a new charger is unnecessary.</p> |
